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<!--Created on: 4/29/2019 3:30:34 PM-->
<!--Modified on: 4/29/2019 3:30:34 PM-->
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    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NoncurrentReceivablesDueFromRelatedParties" xlink:label="ifrs-full_NoncurrentReceivablesDueFromRelatedParties" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentReceivablesDueFromRelatedParties" xlink:to="ifrs-full_NoncurrentReceivablesDueFromRelatedParties_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentReceivablesDueFromRelatedParties_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-current receivables due from related parties</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NoncurrentReceivablesDueFromRelatedParties_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-current receivables from related parties</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherNoncurrentAssets" xlink:label="ifrs-full_OtherNoncurrentAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherNoncurrentAssets" xlink:to="ifrs-full_OtherNoncurrentAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherNoncurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other non-current assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_OtherNoncurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherNoncurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other non-current assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NoncurrentAssets" xlink:label="ifrs-full_NoncurrentAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentAssets" xlink:to="ifrs-full_NoncurrentAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-current assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_NoncurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total non-current assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentAssetsAbstract" xlink:label="ifrs-full_CurrentAssetsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentAssetsAbstract" xlink:to="ifrs-full_CurrentAssetsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentAssetsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current assets [abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CurrentAssetsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_InventoriesTotal" xlink:label="ifrs-full_InventoriesTotal" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InventoriesTotal" xlink:to="ifrs-full_InventoriesTotal_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InventoriesTotal_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Inventories</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_InventoriesTotal_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total inventories</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_InventoriesTotal_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Inventories</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TradeAndOtherCurrentReceivables" xlink:label="ifrs-full_TradeAndOtherCurrentReceivables" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherCurrentReceivables" xlink:to="ifrs-full_TradeAndOtherCurrentReceivables_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherCurrentReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade and other current receivables</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TradeAndOtherCurrentReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade and other receivables</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_TradeAndOtherCurrentReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade and other receivables</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TradeAndOtherCurrentReceivablesDueFromRelatedParties" xlink:label="ifrs-full_TradeAndOtherCurrentReceivablesDueFromRelatedParties" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherCurrentReceivablesDueFromRelatedParties" xlink:to="ifrs-full_TradeAndOtherCurrentReceivablesDueFromRelatedParties_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherCurrentReceivablesDueFromRelatedParties_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current receivables due from related parties</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TradeAndOtherCurrentReceivablesDueFromRelatedParties_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Receivables, Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_TradeAndOtherCurrentReceivablesDueFromRelatedParties_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current receivables from related parties</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentTaxAssetsCurrent" xlink:label="ifrs-full_CurrentTaxAssetsCurrent" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentTaxAssetsCurrent" xlink:to="ifrs-full_CurrentTaxAssetsCurrent_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentTaxAssetsCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current tax assets, current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentTaxAssetsCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current income tax assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentFinancialAssets" xlink:label="ifrs-full_CurrentFinancialAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentFinancialAssets" xlink:to="ifrs-full_CurrentFinancialAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentFinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current financial assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CurrentFinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other current financial assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherCurrentAssets" xlink:label="ifrs-full_OtherCurrentAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherCurrentAssets" xlink:to="ifrs-full_OtherCurrentAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherCurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other current assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_OtherCurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherCurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other current assets</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CashAndCashEquivalentsFromContinuedOperations" xlink:label="gsm_CashAndCashEquivalentsFromContinuedOperations" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CashAndCashEquivalentsFromContinuedOperations" xlink:to="gsm_CashAndCashEquivalentsFromContinuedOperations_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CashAndCashEquivalentsFromContinuedOperations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of cash from continued operations on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CashAndCashEquivalentsFromContinuedOperations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash And Cash Equivalents From Continued Operations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gsm_CashAndCashEquivalentsFromContinuedOperations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash and cash equivalents</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="gsm_CashAndCashEquivalentsFromContinuedOperations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash and cash equivalents</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentAssets" xlink:label="ifrs-full_CurrentAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentAssets" xlink:to="ifrs-full_CurrentAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_CurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total current assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_Assets" xlink:label="ifrs-full_Assets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Assets" xlink:to="ifrs-full_Assets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Assets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_Assets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_EquityAndLiabilitiesAbstract" xlink:label="ifrs-full_EquityAndLiabilitiesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EquityAndLiabilitiesAbstract" xlink:to="ifrs-full_EquityAndLiabilitiesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EquityAndLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Equity and liabilities [abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_EquityAndLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">EQUITY AND LIABILITIES</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_EquityAbstract" xlink:label="ifrs-full_EquityAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EquityAbstract" xlink:to="ifrs-full_EquityAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EquityAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Equity [abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_EquityAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Equity</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IssuedCapital" xlink:label="ifrs-full_IssuedCapital" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IssuedCapital" xlink:to="ifrs-full_IssuedCapital_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IssuedCapital_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Issued capital</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IssuedCapital_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Share capital</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherReserves" xlink:label="ifrs-full_OtherReserves" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherReserves" xlink:to="ifrs-full_OtherReserves_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherReserves_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other reserves</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherReserves_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Reserves</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ReserveOfExchangeDifferencesOnTranslation" xlink:label="ifrs-full_ReserveOfExchangeDifferencesOnTranslation" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ReserveOfExchangeDifferencesOnTranslation_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Reserve of exchange differences on translation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ReserveOfExchangeDifferencesOnTranslation_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Translation differences</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_AccumulatedValuationAdjustments" xlink:label="gsm_AccumulatedValuationAdjustments" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_AccumulatedValuationAdjustments" xlink:to="gsm_AccumulatedValuationAdjustments_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_AccumulatedValuationAdjustments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total amount of valuation adjustments as of the period end.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_AccumulatedValuationAdjustments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Accumulated Valuation Adjustments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_AccumulatedValuationAdjustments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Valuation adjustments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gsm_AccumulatedValuationAdjustments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Valuation adjustments</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_EquityAttributableToOwnersOfParent" xlink:label="ifrs-full_EquityAttributableToOwnersOfParent" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EquityAttributableToOwnersOfParent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Equity attributable to owners of parent</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_EquityAttributableToOwnersOfParent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Result attributable to the Parent</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NoncontrollingInterests" xlink:label="ifrs-full_NoncontrollingInterests" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncontrollingInterests" xlink:to="ifrs-full_NoncontrollingInterests_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncontrollingInterests_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-controlling interests</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NoncontrollingInterests_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-controlling interests</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_Equity" xlink:label="ifrs-full_Equity" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Equity" xlink:to="ifrs-full_Equity_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Equity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Equity</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_Equity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Equity at end of period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_Equity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Equity at beginning of period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_Equity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Consolidated equity</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_Equity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total equity</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NoncurrentLiabilitiesAbstract" xlink:label="ifrs-full_NoncurrentLiabilitiesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentLiabilitiesAbstract" xlink:to="ifrs-full_NoncurrentLiabilitiesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-current liabilities [abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_NoncurrentLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-current liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DeferredIncome" xlink:label="ifrs-full_DeferredIncome" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DeferredIncome" xlink:to="ifrs-full_DeferredIncome_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DeferredIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Deferred income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DeferredIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Deferred income</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NoncurrentProvisions" xlink:label="ifrs-full_NoncurrentProvisions" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentProvisions" xlink:to="ifrs-full_NoncurrentProvisions_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-current provisions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NoncurrentProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provisions</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LongtermBorrowings" xlink:label="ifrs-full_LongtermBorrowings" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LongtermBorrowings" xlink:to="ifrs-full_LongtermBorrowings_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LongtermBorrowings_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-Current Amount</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LongtermBorrowings_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Bank borrowings</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_LongtermBorrowings_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount due for settlement after 12 months</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NoncurrentFinanceLeaseLiabilities" xlink:label="ifrs-full_NoncurrentFinanceLeaseLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentFinanceLeaseLiabilities" xlink:to="ifrs-full_NoncurrentFinanceLeaseLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentFinanceLeaseLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-current finance lease liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NoncurrentFinanceLeaseLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_NoncurrentFinanceLeaseLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Obligations under finance leases</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NoncurrentDebtInstrumentsIssued" xlink:label="ifrs-full_NoncurrentDebtInstrumentsIssued" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentDebtInstrumentsIssued" xlink:to="ifrs-full_NoncurrentDebtInstrumentsIssued_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentDebtInstrumentsIssued_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-current debt instruments issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NoncurrentDebtInstrumentsIssued_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Debt instruments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_NoncurrentDebtInstrumentsIssued_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount due for settlement after 12 months</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherNoncurrentFinancialLiabilities" xlink:label="ifrs-full_OtherNoncurrentFinancialLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherNoncurrentFinancialLiabilities" xlink:to="ifrs-full_OtherNoncurrentFinancialLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherNoncurrentFinancialLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other non-current financial liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherNoncurrentFinancialLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other financial liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherNoncurrentFinancialLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-Current</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherNoncurrentNonfinancialLiabilities" xlink:label="ifrs-full_OtherNoncurrentNonfinancialLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherNoncurrentNonfinancialLiabilities" xlink:to="ifrs-full_OtherNoncurrentNonfinancialLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherNoncurrentNonfinancialLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other non-current non-financial liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherNoncurrentNonfinancialLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other non-current liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NetDeferredTaxLiabilities" xlink:label="ifrs-full_NetDeferredTaxLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NetDeferredTaxLiabilities" xlink:to="ifrs-full_NetDeferredTaxLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NetDeferredTaxLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net deferred tax liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NetDeferredTaxLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Deferred tax liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NoncurrentLiabilities" xlink:label="ifrs-full_NoncurrentLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentLiabilities" xlink:to="ifrs-full_NoncurrentLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-current liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_NoncurrentLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total non-current liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentLiabilitiesAbstract" xlink:label="ifrs-full_CurrentLiabilitiesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentLiabilitiesAbstract" xlink:to="ifrs-full_CurrentLiabilitiesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current liabilities [abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentProvisions" xlink:label="ifrs-full_CurrentProvisions" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentProvisions" xlink:to="ifrs-full_CurrentProvisions_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current provisions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provisions</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ShorttermBorrowings" xlink:label="ifrs-full_ShorttermBorrowings" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ShorttermBorrowings" xlink:to="ifrs-full_ShorttermBorrowings_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ShorttermBorrowings_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current borrowings</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ShorttermBorrowings_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Bank borrowings</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ShorttermBorrowings_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current Amount</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentFinanceLeaseLiabilities" xlink:label="ifrs-full_CurrentFinanceLeaseLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentFinanceLeaseLiabilities" xlink:to="ifrs-full_CurrentFinanceLeaseLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentFinanceLeaseLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current finance lease liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentFinanceLeaseLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CurrentFinanceLeaseLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Obligations under finance leases</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentDebtInstrumentsIssued" xlink:label="ifrs-full_CurrentDebtInstrumentsIssued" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentDebtInstrumentsIssued" xlink:to="ifrs-full_CurrentDebtInstrumentsIssued_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentDebtInstrumentsIssued_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current debt instruments issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentDebtInstrumentsIssued_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Debt instruments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CurrentDebtInstrumentsIssued_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount due for settlement within 12 months</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherCurrentFinancialLiabilities" xlink:label="ifrs-full_OtherCurrentFinancialLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherCurrentFinancialLiabilities" xlink:to="ifrs-full_OtherCurrentFinancialLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherCurrentFinancialLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other current financial liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherCurrentFinancialLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other financial liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherCurrentFinancialLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TradeAndOtherCurrentPayablesToRelatedParties" xlink:label="ifrs-full_TradeAndOtherCurrentPayablesToRelatedParties" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherCurrentPayablesToRelatedParties_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current payables to related parties</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TradeAndOtherCurrentPayablesToRelatedParties_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Payables, Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_TradeAndOtherCurrentPayablesToRelatedParties_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Payables to related parties</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TradeAndOtherCurrentPayables" xlink:label="ifrs-full_TradeAndOtherCurrentPayables" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherCurrentPayables" xlink:to="ifrs-full_TradeAndOtherCurrentPayables_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherCurrentPayables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade and other current payables</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TradeAndOtherCurrentPayables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade and other payables</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentTaxLiabilitiesCurrent" xlink:label="ifrs-full_CurrentTaxLiabilitiesCurrent" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentTaxLiabilitiesCurrent" xlink:to="ifrs-full_CurrentTaxLiabilitiesCurrent_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentTaxLiabilitiesCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current tax liabilities, current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentTaxLiabilitiesCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current income tax liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherCurrentLiabilities" xlink:label="ifrs-full_OtherCurrentLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherCurrentLiabilities" xlink:to="ifrs-full_OtherCurrentLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherCurrentLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other current liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_OtherCurrentLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total other current liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherCurrentLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other current liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentLiabilities" xlink:label="ifrs-full_CurrentLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentLiabilities" xlink:to="ifrs-full_CurrentLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_CurrentLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total current liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_EquityAndLiabilities" xlink:label="ifrs-full_EquityAndLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EquityAndLiabilities" xlink:to="ifrs-full_EquityAndLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EquityAndLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Equity and liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_EquityAndLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total equity and liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IncomeStatementAbstract" xlink:label="ifrs-full_IncomeStatementAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_IncomeStatementAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncomeStatementAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">CONSOLIDATED INCOME STATEMENT</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ProfitLossAbstract" xlink:label="ifrs-full_ProfitLossAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProfitLossAbstract" xlink:to="ifrs-full_ProfitLossAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProfitLossAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Profit (loss) [abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_RevenueFromContractsWithCustomers" xlink:label="ifrs-full_RevenueFromContractsWithCustomers" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RevenueFromContractsWithCustomers" xlink:to="ifrs-full_RevenueFromContractsWithCustomers_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RevenueFromContractsWithCustomers_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Revenue from contracts with customers</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_RevenueFromContractsWithCustomers_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Sales</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CostOfSales" xlink:label="ifrs-full_CostOfSales" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CostOfSales" xlink:to="ifrs-full_CostOfSales_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CostOfSales_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cost of sales</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_CostOfSales_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cost of sales</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherIncome" xlink:label="ifrs-full_OtherIncome" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherIncome" xlink:to="ifrs-full_OtherIncome_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other operating income</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_EmployeeBenefitsExpense" xlink:label="ifrs-full_EmployeeBenefitsExpense" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EmployeeBenefitsExpense" xlink:to="ifrs-full_EmployeeBenefitsExpense_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EmployeeBenefitsExpense_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Employee benefits expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_EmployeeBenefitsExpense_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Staff costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_EmployeeBenefitsExpense_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Staff costs</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherExpenseByNature" xlink:label="ifrs-full_OtherExpenseByNature" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherExpenseByNature" xlink:to="ifrs-full_OtherExpenseByNature_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherExpenseByNature_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other expenses, by nature</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_OtherExpenseByNature_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other operating expense</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DepreciationAndAmortizationChargesOperatingAllowancesAndWriteDowns" xlink:label="gsm_DepreciationAndAmortizationChargesOperatingAllowancesAndWriteDowns" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DepreciationAndAmortizationChargesOperatingAllowancesAndWriteDowns" xlink:to="gsm_DepreciationAndAmortizationChargesOperatingAllowancesAndWriteDowns_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DepreciationAndAmortizationChargesOperatingAllowancesAndWriteDowns_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of depreciation and amortization charges, operating allowances and write-downs recorded during the period.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DepreciationAndAmortizationChargesOperatingAllowancesAndWriteDowns_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Depreciation And Amortization Charges Operating Allowances And Write Downs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gsm_DepreciationAndAmortizationChargesOperatingAllowancesAndWriteDowns_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Depreciation and amortization charges, operating allowances and write-downs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gsm_DepreciationAndAmortizationChargesOperatingAllowancesAndWriteDowns_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Depreciation and amortization charges, operating allowances and write-downs</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLoss" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLoss" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ImpairmentLossRecognisedInProfitOrLoss" xlink:to="ifrs-full_ImpairmentLossRecognisedInProfitOrLoss_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Impairment loss recognised in profit or loss</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Impairment losses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Impairment losses</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets" xlink:label="ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets" xlink:to="ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gains (losses) recognised in profit or loss, fair value measurement, assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:label="ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net gains/losses due to changes in the value of assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net gain due to changes in the value of assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net (loss) gain due to changes in the value of assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation" xlink:label="ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation" xlink:to="ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gain (loss) recognised on measurement to fair value less costs to sell or on disposal of assets or disposal groups constituting discontinued operation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:label="ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">(Loss) gain on disposal of non-current assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_GainLossRecognisedOnMeasurementToFairValueLessCostsToSellOrOnDisposalOfAssetsOrDisposalGroupsConstitutingDiscontinuedOperation_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gain (loss) on disposal of non-current assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_GainRecognisedInBargainPurchaseTransaction" xlink:label="ifrs-full_GainRecognisedInBargainPurchaseTransaction" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainRecognisedInBargainPurchaseTransaction_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gain Recognised In Bargain Purchase Transaction</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_GainRecognisedInBargainPurchaseTransaction_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Bargain purchase gain</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GainRecognisedInBargainPurchaseTransaction_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gain on bargain purchase</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_GainRecognisedInBargainPurchaseTransaction_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Bargain purchase gain</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherGainsLosses" xlink:label="ifrs-full_OtherGainsLosses" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherGainsLosses_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other gains (losses)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherGainsLosses_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other (loss) gain</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherGainsLosses_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other losses</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ProfitLossFromOperatingActivities" xlink:label="ifrs-full_ProfitLossFromOperatingActivities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProfitLossFromOperatingActivities" xlink:to="ifrs-full_ProfitLossFromOperatingActivities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProfitLossFromOperatingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Profit (loss) from operating activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProfitLossFromOperatingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Operating profit</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_ProfitLossFromOperatingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Operating profit (loss)</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_FinanceIncome" xlink:label="ifrs-full_FinanceIncome" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinanceIncome" xlink:to="ifrs-full_FinanceIncome_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinanceIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Finance income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FinanceIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Finance income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_FinanceIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Finance income</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_FinanceCosts" xlink:label="ifrs-full_FinanceCosts" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinanceCosts" xlink:to="ifrs-full_FinanceCosts_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinanceCosts_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Finance costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_FinanceCosts_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Finance costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_FinanceCosts_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Finance costs</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GainLossOnFinancialDerivative" xlink:label="gsm_GainLossOnFinancialDerivative" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GainLossOnFinancialDerivative" xlink:to="gsm_GainLossOnFinancialDerivative_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GainLossOnFinancialDerivative_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of gain (loss) on financial derivatives recognised during the period.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GainLossOnFinancialDerivative_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gain Loss On Financial Derivative</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GainLossOnFinancialDerivative_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial derivative gain (loss)</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" xlink:to="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Foreign exchange gain (loss)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Exchange differences</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ProfitLossBeforeTax" xlink:label="ifrs-full_ProfitLossBeforeTax" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProfitLossBeforeTax" xlink:to="ifrs-full_ProfitLossBeforeTax_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProfitLossBeforeTax_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Profit (loss) before tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProfitLossBeforeTax_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Profit before taxes</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_ProfitLossBeforeTax_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Profit (loss) before tax</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:label="ifrs-full_IncomeTaxExpenseContinuingOperations" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:to="ifrs-full_IncomeTaxExpenseContinuingOperations_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncomeTaxExpenseContinuingOperations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tax expense (income), continuing operations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_IncomeTaxExpenseContinuingOperations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Income tax (expense) benefit</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_IncomeTaxExpenseContinuingOperations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Income tax expense (benefit)</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ProfitLoss" xlink:label="ifrs-full_ProfitLoss" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProfitLoss" xlink:to="ifrs-full_ProfitLoss_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProfitLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Profit (loss)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProfitLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Profit (loss) for the year</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_ProfitLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Profit (loss) for the year</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ProfitLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net profit (loss)</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ProfitLossAttributableToNoncontrollingInterests" xlink:label="ifrs-full_ProfitLossAttributableToNoncontrollingInterests" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProfitLossAttributableToNoncontrollingInterests" xlink:to="ifrs-full_ProfitLossAttributableToNoncontrollingInterests_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProfitLossAttributableToNoncontrollingInterests_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Profit (loss), attributable to non-controlling interests</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_ProfitLossAttributableToNoncontrollingInterests_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Loss (profit) attributable to non-controlling interests</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="ifrs-full_ProfitLossAttributableToNoncontrollingInterests_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Loss attributable to non-controlling interests</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ProfitLossAttributableToNoncontrollingInterests_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Loss for the year</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ProfitLossAttributableToOwnersOfParent" xlink:label="ifrs-full_ProfitLossAttributableToOwnersOfParent" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProfitLossAttributableToOwnersOfParent" xlink:to="ifrs-full_ProfitLossAttributableToOwnersOfParent_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProfitLossAttributableToOwnersOfParent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Profit (loss), attributable to owners of parent</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:label="ifrs-full_ProfitLossAttributableToOwnersOfParent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Profit (loss) attributable to the Parent (US$'000)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProfitLossAttributableToOwnersOfParent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Profit (loss) attributable to the Parent</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_EarningsPerShareAbstract" xlink:label="ifrs-full_EarningsPerShareAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EarningsPerShareAbstract" xlink:to="ifrs-full_EarningsPerShareAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EarningsPerShareAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Earnings per share [abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_EarningsPerShareAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Earnings per share</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_EarningsPerShareContinuedAndDiscontinuedOperationsAbstract" xlink:label="gsm_EarningsPerShareContinuedAndDiscontinuedOperationsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_EarningsPerShareContinuedAndDiscontinuedOperationsAbstract" xlink:to="gsm_EarningsPerShareContinuedAndDiscontinuedOperationsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_EarningsPerShareContinuedAndDiscontinuedOperationsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_EarningsPerShareContinuedAndDiscontinuedOperationsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Earnings Per Share Continued And Discontinued Operations [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:label="ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity" xlink:to="ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Profit (loss), attributable to ordinary equity holders of parent entity</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Profit (loss) attributable to the Parent (US$'000)</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_WeightedAverageShares" xlink:label="ifrs-full_WeightedAverageShares" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WeightedAverageShares" xlink:to="ifrs-full_WeightedAverageShares_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_WeightedAverageShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted average number of ordinary shares outstanding</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_WeightedAverageShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted average basic shares outstanding</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_BasicEarningsLossPerShare" xlink:label="ifrs-full_BasicEarningsLossPerShare" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BasicEarningsLossPerShare" xlink:to="ifrs-full_BasicEarningsLossPerShare_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BasicEarningsLossPerShare_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Basic earnings (loss) per share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:label="ifrs-full_BasicEarningsLossPerShare_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Basic earnings (loss) per ordinary share (US$)</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DilutiveEffectOfSecuritiesOnWeightedAverageNumberOfOrdinarySharesOutstanding" xlink:label="gsm_DilutiveEffectOfSecuritiesOnWeightedAverageNumberOfOrdinarySharesOutstanding" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DilutiveEffectOfSecuritiesOnWeightedAverageNumberOfOrdinarySharesOutstanding_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The number of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DilutiveEffectOfSecuritiesOnWeightedAverageNumberOfOrdinarySharesOutstanding_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Dilutive effect of securities on weighted average number of ordinary shares outstanding</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other comprehensive income that will not be reclassified to profit or loss, net of tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Items that may be reclassified subsequently to income or loss:</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GainsLossesOnCashFlowHedgesNetOfTax_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Arising from cash flow hedges</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationNetOfTax" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationNetOfTax" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total income and expense recognized directly in equity</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Comprehensive income, attributable to owners of parent</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Attributable to the Parent</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests" xlink:label="ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests" xlink:to="ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Comprehensive income, attributable to non-controlling interests</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Attributable to non-controlling interests</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_StatementOfChangesInEquityAbstract" xlink:label="ifrs-full_StatementOfChangesInEquityAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_StatementOfChangesInEquityAbstract" xlink:to="ifrs-full_StatementOfChangesInEquityAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_StatementOfChangesInEquityAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">CONSOLIDATED STATEMENT OF CHANGES IN EQUITY</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_StatementOfChangesInEquityTable" xlink:label="ifrs-full_StatementOfChangesInEquityTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_StatementOfChangesInEquityTable" xlink:to="ifrs-full_StatementOfChangesInEquityTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_StatementOfChangesInEquityTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Statement of changes in equity [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ComponentsOfEquityAxis" xlink:label="ifrs-full_ComponentsOfEquityAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ComponentsOfEquityAxis" xlink:to="ifrs-full_ComponentsOfEquityAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ComponentsOfEquityAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Components of equity [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_EquityMember" xlink:label="ifrs-full_EquityMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EquityMember" xlink:to="ifrs-full_EquityMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EquityMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Equity [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_EquityMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Equity [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_EquityAttributableToOwnersOfParentMember" xlink:label="ifrs-full_EquityAttributableToOwnersOfParentMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EquityAttributableToOwnersOfParentMember" xlink:to="ifrs-full_EquityAttributableToOwnersOfParentMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EquityAttributableToOwnersOfParentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Equity Attributable To Owners Of Parent [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_EquityAttributableToOwnersOfParentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Equity attributable to owners of parent.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IssuedCapitalMember" xlink:label="ifrs-full_IssuedCapitalMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IssuedCapitalMember" xlink:to="ifrs-full_IssuedCapitalMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IssuedCapitalMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Issued Capital [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IssuedCapitalMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Share Capital</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherReservesMember" xlink:label="ifrs-full_OtherReservesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherReservesMember" xlink:to="ifrs-full_OtherReservesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherReservesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Reserves [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherReservesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Reserves</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xlink:label="ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xlink:to="ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Reserve Of Exchange Differences On Translation [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Translation Difference</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ValuationAdjustmentsMember" xlink:label="gsm_ValuationAdjustmentsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ValuationAdjustmentsMember" xlink:to="gsm_ValuationAdjustmentsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ValuationAdjustmentsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for a component of equity representing valuation adjustments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ValuationAdjustmentsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Valuation Adjustments [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ValuationAdjustmentsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Valuation Adjustments</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ProfitForPeriodAttributableToParentMember" xlink:label="gsm_ProfitForPeriodAttributableToParentMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ProfitForPeriodAttributableToParentMember" xlink:to="gsm_ProfitForPeriodAttributableToParentMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ProfitForPeriodAttributableToParentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the portion of total equity representing net profit or loss attributable to parent.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ProfitForPeriodAttributableToParentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Profit For Period Attributable To Parent [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ProfitForPeriodAttributableToParentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Result for the Year</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NoncontrollingInterestsMember" xlink:label="ifrs-full_NoncontrollingInterestsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncontrollingInterestsMember" xlink:to="ifrs-full_NoncontrollingInterestsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncontrollingInterestsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Noncontrolling Interests [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NoncontrollingInterestsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Noncontrolling interests</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_StatementOfChangesInEquityLineItems" xlink:label="ifrs-full_StatementOfChangesInEquityLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems" xlink:to="ifrs-full_StatementOfChangesInEquityLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_StatementOfChangesInEquityLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Statement of changes in equity [line items]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsSharesOutstanding" xlink:label="gsm_IfrsSharesOutstanding" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsSharesOutstanding" xlink:to="gsm_IfrsSharesOutstanding_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsSharesOutstanding_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The number of shares that have been authorised and issued, reduced by treasury shares.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsSharesOutstanding_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">IFRS Shares Outstanding</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="gsm_IfrsSharesOutstanding_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Shares outstanding at end of period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="gsm_IfrsSharesOutstanding_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Shares outstanding at beginning of period</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IssueOfEquity" xlink:label="ifrs-full_IssueOfEquity" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IssueOfEquity" xlink:to="ifrs-full_IssueOfEquity_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IssueOfEquity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Issue of equity</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IssueOfEquity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Issue of share capital</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NumberOfSharesIssued" xlink:label="ifrs-full_NumberOfSharesIssued" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfSharesIssued" xlink:to="ifrs-full_NumberOfSharesIssued_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NumberOfSharesIssued_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of shares issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NumberOfSharesIssued_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Shares issued (in shares)</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:label="ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:to="ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (decrease) through share-based payment transactions, equity</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Share-based compensation</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IncreaseDecreaseThroughCashSettlementOfEquityAwards" xlink:label="gsm_IncreaseDecreaseThroughCashSettlementOfEquityAwards" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IncreaseDecreaseThroughCashSettlementOfEquityAwards" xlink:to="gsm_IncreaseDecreaseThroughCashSettlementOfEquityAwards_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IncreaseDecreaseThroughCashSettlementOfEquityAwards_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The increase (decrease) in equity resulting from the cash settlement of equity awards.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IncreaseDecreaseThroughCashSettlementOfEquityAwards_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase Decrease Through Cash Settlement of Equity Awards</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IncreaseDecreaseThroughCashSettlementOfEquityAwards_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash settlement of equity awards</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IncreaseDecreaseIssuedCapital" xlink:label="gsm_IncreaseDecreaseIssuedCapital" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IncreaseDecreaseIssuedCapital" xlink:to="gsm_IncreaseDecreaseIssuedCapital_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IncreaseDecreaseIssuedCapital_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The increase (decrease) in equity due to a reduction in issued capital shares.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IncreaseDecreaseIssuedCapital_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase Decrease Issued Capital</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IncreaseDecreaseIssuedCapital_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Share decrease (net effect)</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ShareIssueRelatedCost" xlink:label="ifrs-full_ShareIssueRelatedCost" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ShareIssueRelatedCost" xlink:to="ifrs-full_ShareIssueRelatedCost_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ShareIssueRelatedCost_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Share issue related cost</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="ifrs-full_ShareIssueRelatedCost_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Share issuance costs</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DividendsPaid" xlink:label="ifrs-full_DividendsPaid" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DividendsPaid" xlink:to="ifrs-full_DividendsPaid_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DividendsPaid_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Dividends recognised as distributions to owners</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="ifrs-full_DividendsPaid_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Dividends paid</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DividendsPaidToJointVenturePartner" xlink:label="gsm_DividendsPaidToJointVenturePartner" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DividendsPaidToJointVenturePartner" xlink:to="gsm_DividendsPaidToJointVenturePartner_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DividendsPaidToJointVenturePartner_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of dividends recognised as distributions to joint venture partner.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DividendsPaidToJointVenturePartner_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Dividends Paid To Joint Venture Partner</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gsm_DividendsPaidToJointVenturePartner_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Dividends paid to joint venture partner</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IncreaseDecreaseDistributionOfProfitLoss" xlink:label="gsm_IncreaseDecreaseDistributionOfProfitLoss" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IncreaseDecreaseDistributionOfProfitLoss" xlink:to="gsm_IncreaseDecreaseDistributionOfProfitLoss_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IncreaseDecreaseDistributionOfProfitLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of change of equity resulting from the distribution of profit (loss).</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IncreaseDecreaseDistributionOfProfitLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase Decrease Distribution Of Profit Loss</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IncreaseDecreaseDistributionOfProfitLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Distribution of profit (loss)</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_PurchaseOfTreasuryShares" xlink:label="ifrs-full_PurchaseOfTreasuryShares" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PurchaseOfTreasuryShares" xlink:to="ifrs-full_PurchaseOfTreasuryShares_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PurchaseOfTreasuryShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">PurchaseOfTreasuryShares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_PurchaseOfTreasuryShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Own shares acquired</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DecreaseThroughPurchaseOfOwnShares" xlink:label="gsm_DecreaseThroughPurchaseOfOwnShares" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DecreaseThroughPurchaseOfOwnShares" xlink:to="gsm_DecreaseThroughPurchaseOfOwnShares_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DecreaseThroughPurchaseOfOwnShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of own shares acquired during the period.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DecreaseThroughPurchaseOfOwnShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Decrease Through Purchase of Own Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DecreaseThroughPurchaseOfOwnShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Own shares acquired (in shares)</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IncreaseDecreaseOnNoncontrollingInterestAcquired" xlink:label="gsm_IncreaseDecreaseOnNoncontrollingInterestAcquired" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IncreaseDecreaseOnNoncontrollingInterestAcquired" xlink:to="gsm_IncreaseDecreaseOnNoncontrollingInterestAcquired_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IncreaseDecreaseOnNoncontrollingInterestAcquired_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The increase (decrease) in equity through acquisition of noncontrolling interest.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IncreaseDecreaseOnNoncontrollingInterestAcquired_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase Decrease On Noncontrolling Interest Acquired</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IncreaseDecreaseOnNoncontrollingInterestAcquired_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-controlling interest arising on the acquisition</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:to="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (decrease) through other changes, equity</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other changes</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Translation differences and other</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_StatementOfCashFlowsAbstract" xlink:label="ifrs-full_StatementOfCashFlowsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_StatementOfCashFlowsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_StatementOfCashFlowsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">CONSOLIDATED STATEMENT OF CASH FLOWS</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:to="ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash flows from (used in) operating activities [abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash flows from operating activities:</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_AdjustmentsToReconcileNetProfitLossToNetCashProvidedByOperatingActivitiesAbstract" xlink:label="gsm_AdjustmentsToReconcileNetProfitLossToNetCashProvidedByOperatingActivitiesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_AdjustmentsToReconcileNetProfitLossToNetCashProvidedByOperatingActivitiesAbstract" xlink:to="gsm_AdjustmentsToReconcileNetProfitLossToNetCashProvidedByOperatingActivitiesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_AdjustmentsToReconcileNetProfitLossToNetCashProvidedByOperatingActivitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_AdjustmentsToReconcileNetProfitLossToNetCashProvidedByOperatingActivitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments To Reconcile Net Profit Loss To Net Cash Provided By Operating Activities [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_AdjustmentsToReconcileNetProfitLossToNetCashProvidedByOperatingActivitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments to reconcile net profit (loss) to net cash provided by operating activities:</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AdjustmentsForIncomeTaxExpense" xlink:label="ifrs-full_AdjustmentsForIncomeTaxExpense" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForIncomeTaxExpense" xlink:to="ifrs-full_AdjustmentsForIncomeTaxExpense_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForIncomeTaxExpense_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments for income tax expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdjustmentsForIncomeTaxExpense_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Income tax expense (benefit)</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_AdjustmentsForDepreciationAndAmortizationChargesOperatingAllowancesAndWriteDowns" xlink:label="gsm_AdjustmentsForDepreciationAndAmortizationChargesOperatingAllowancesAndWriteDowns" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_AdjustmentsForDepreciationAndAmortizationChargesOperatingAllowancesAndWriteDowns" xlink:to="gsm_AdjustmentsForDepreciationAndAmortizationChargesOperatingAllowancesAndWriteDowns_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_AdjustmentsForDepreciationAndAmortizationChargesOperatingAllowancesAndWriteDowns_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments for depreciation and amortization charges, operating allowances and write-downs, to reconcile profit (loss) to net cash flow from (used in) operating activities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_AdjustmentsForDepreciationAndAmortizationChargesOperatingAllowancesAndWriteDowns_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments For Depreciation And Amortization Charges Operating Allowances And Write Downs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_AdjustmentsForDepreciationAndAmortizationChargesOperatingAllowancesAndWriteDowns_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Depreciation and amortization charges, operating allowances and write-downs</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AdjustmentsForFinanceIncome" xlink:label="ifrs-full_AdjustmentsForFinanceIncome" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForFinanceIncome" xlink:to="ifrs-full_AdjustmentsForFinanceIncome_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForFinanceIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments for finance income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="ifrs-full_AdjustmentsForFinanceIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Finance income</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AdjustmentsForFinanceCosts" xlink:label="ifrs-full_AdjustmentsForFinanceCosts" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForFinanceCosts" xlink:to="ifrs-full_AdjustmentsForFinanceCosts_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForFinanceCosts_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments for finance costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdjustmentsForFinanceCosts_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Finance costs</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_AdjustmentsForFinancialDerivativeGainsLosses" xlink:label="gsm_AdjustmentsForFinancialDerivativeGainsLosses" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_AdjustmentsForFinancialDerivativeGainsLosses" xlink:to="gsm_AdjustmentsForFinancialDerivativeGainsLosses_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_AdjustmentsForFinancialDerivativeGainsLosses_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments for (gains) losses on financial derivatives to reconcile profit (loss) to net cash flow from (used in) operating activities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_AdjustmentsForFinancialDerivativeGainsLosses_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments For Financial Derivative Gains Losses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_AdjustmentsForFinancialDerivativeGainsLosses_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial derivative (gain) loss</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains" xlink:label="ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains" xlink:to="ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments for unrealised foreign exchange losses (gains)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdjustmentsForUnrealisedForeignExchangeLossesGains_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Exchange differences</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:label="ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss" xlink:to="ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Impairment losses</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AdjustmentsForFairValueGainsLosses" xlink:label="ifrs-full_AdjustmentsForFairValueGainsLosses" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForFairValueGainsLosses" xlink:to="ifrs-full_AdjustmentsForFairValueGainsLosses_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForFairValueGainsLosses_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments for fair value losses (gains)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdjustmentsForFairValueGainsLosses_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Loss (gain) due to changes in the value of assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:label="ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:to="ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments for losses (gains) on disposal of non-current assets</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments for increase (decrease) in employee benefit liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Share-based compensation</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherAdjustmentsToReconcileProfitLoss" xlink:label="ifrs-full_OtherAdjustmentsToReconcileProfitLoss" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherAdjustmentsToReconcileProfitLoss" xlink:to="ifrs-full_OtherAdjustmentsToReconcileProfitLoss_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherAdjustmentsToReconcileProfitLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other adjustments to reconcile profit (loss)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherAdjustmentsToReconcileProfitLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other loss</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IncreaseDecreaseInWorkingCapitalAbstract" xlink:label="gsm_IncreaseDecreaseInWorkingCapitalAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IncreaseDecreaseInWorkingCapitalAbstract" xlink:to="gsm_IncreaseDecreaseInWorkingCapitalAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IncreaseDecreaseInWorkingCapitalAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IncreaseDecreaseInWorkingCapitalAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase Decrease In Working Capital [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IncreaseDecreaseInWorkingCapitalAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Changes in operating assets and liabilities:</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" xlink:label="ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForDecreaseIncreaseInInventories" xlink:to="ifrs-full_AdjustmentsForDecreaseIncreaseInInventories_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForDecreaseIncreaseInInventories_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments for decrease (increase) in inventories</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdjustmentsForDecreaseIncreaseInInventories_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">(Increase) decrease in inventories</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_AdjustmentsForDecreaseIncreaseInTradeAccountsAndOtherReceivable" xlink:label="gsm_AdjustmentsForDecreaseIncreaseInTradeAccountsAndOtherReceivable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_AdjustmentsForDecreaseIncreaseInTradeAccountsAndOtherReceivable" xlink:to="gsm_AdjustmentsForDecreaseIncreaseInTradeAccountsAndOtherReceivable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_AdjustmentsForDecreaseIncreaseInTradeAccountsAndOtherReceivable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments for decrease (increase) in trade accounts and other receivables to reconcile profit (loss) to net cash flow from (used in) operating activities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_AdjustmentsForDecreaseIncreaseInTradeAccountsAndOtherReceivable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments For Decrease (Increase) in Trade Accounts and Other Receivable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_AdjustmentsForDecreaseIncreaseInTradeAccountsAndOtherReceivable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">(Increase) decrease in trade and other receivables</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_AdjustmentsForDecreaseIncreaseInTradeAccountsAndOtherPayables" xlink:label="gsm_AdjustmentsForDecreaseIncreaseInTradeAccountsAndOtherPayables" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_AdjustmentsForDecreaseIncreaseInTradeAccountsAndOtherPayables" xlink:to="gsm_AdjustmentsForDecreaseIncreaseInTradeAccountsAndOtherPayables_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_AdjustmentsForDecreaseIncreaseInTradeAccountsAndOtherPayables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments for decrease (increase) in trade accounts and other payables to reconcile profit (loss) to net cash flow from (used in) operating activities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_AdjustmentsForDecreaseIncreaseInTradeAccountsAndOtherPayables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments For Decrease (Increase) In Trade Accounts and Other Payables</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_AdjustmentsForDecreaseIncreaseInTradeAccountsAndOtherPayables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase in trade and other payables</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsOperatingActivities" xlink:label="ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsOperatingActivities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsOperatingActivities" xlink:to="ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsOperatingActivities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsOperatingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other inflows (outflows) of cash, classified as operating activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsOperatingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other amounts paid due to operating activities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" xlink:label="ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" xlink:to="ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Income taxes paid (refund), classified as operating activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Income tax paid</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_InterestPaidClassifiedAsOperatingActivities" xlink:label="ifrs-full_InterestPaidClassifiedAsOperatingActivities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestPaidClassifiedAsOperatingActivities" xlink:to="ifrs-full_InterestPaidClassifiedAsOperatingActivities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InterestPaidClassifiedAsOperatingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest paid, classified as operating activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="ifrs-full_InterestPaidClassifiedAsOperatingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest paid</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:to="ifrs-full_CashFlowsFromUsedInOperatingActivities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash flows from (used in) operating activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash flows from operating activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net cash provided by operating activities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:to="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash flows from (used in) investing activities [abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash flows from investing activities:</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_InterestReceivedClassifiedAsInvestingActivities" xlink:label="ifrs-full_InterestReceivedClassifiedAsInvestingActivities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestReceivedClassifiedAsInvestingActivities" xlink:to="ifrs-full_InterestReceivedClassifiedAsInvestingActivities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InterestReceivedClassifiedAsInvestingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest received, classified as investing activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InterestReceivedClassifiedAsInvestingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest and finance income received</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_OutflowsOfCashFromInvestingActivitiesAbstract" xlink:label="gsm_OutflowsOfCashFromInvestingActivitiesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_OutflowsOfCashFromInvestingActivitiesAbstract" xlink:to="gsm_OutflowsOfCashFromInvestingActivitiesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_OutflowsOfCashFromInvestingActivitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_OutflowsOfCashFromInvestingActivitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Outflows Of Cash From Investing Activities [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_OutflowsOfCashFromInvestingActivitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Payments due to investments:</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_PaymentsFromChangesInOwnershipInterestsInSubsidiaries" xlink:label="ifrs-full_PaymentsFromChangesInOwnershipInterestsInSubsidiaries" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PaymentsFromChangesInOwnershipInterestsInSubsidiaries" xlink:to="ifrs-full_PaymentsFromChangesInOwnershipInterestsInSubsidiaries_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PaymentsFromChangesInOwnershipInterestsInSubsidiaries_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">PaymentsFromChangesInOwnershipInterestsInSubsidiaries</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_PaymentsFromChangesInOwnershipInterestsInSubsidiaries_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Acquisition of subsidiaries</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:label="ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities" xlink:to="ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Purchase of intangible assets, classified as investing activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="ifrs-full_PurchaseOfIntangibleAssetsClassifiedAsInvestingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other intangible assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:label="ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities" xlink:to="ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Purchase of property, plant and equipment, classified as investing activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="ifrs-full_PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Property, plant and equipment</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PurchaseOfNonCurrentFinancialAssetsClassifiedAsInvestingActivities" xlink:label="gsm_PurchaseOfNonCurrentFinancialAssetsClassifiedAsInvestingActivities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PurchaseOfNonCurrentFinancialAssetsClassifiedAsInvestingActivities" xlink:to="gsm_PurchaseOfNonCurrentFinancialAssetsClassifiedAsInvestingActivities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PurchaseOfNonCurrentFinancialAssetsClassifiedAsInvestingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The cash outflow for the purchases of non-current financial assets, classified as investing activities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PurchaseOfNonCurrentFinancialAssetsClassifiedAsInvestingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Purchase Of Non Current Financial Assets Classified As Investing Activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="gsm_PurchaseOfNonCurrentFinancialAssetsClassifiedAsInvestingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other financial assets</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_InflowsOfCashFromInvestingActivitiesAbstract" xlink:label="gsm_InflowsOfCashFromInvestingActivitiesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_InflowsOfCashFromInvestingActivitiesAbstract" xlink:to="gsm_InflowsOfCashFromInvestingActivitiesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_InflowsOfCashFromInvestingActivitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Inflows Of Cash From Investing Activities [Abstract]</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProceedsFromChangesInOwnershipInterestsInSubsidiaries_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">ProceedsFromChangesInOwnershipInterestsInSubsidiaries</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProceedsFromChangesInOwnershipInterestsInSubsidiaries_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disposal of subsidiaries</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities" xlink:label="ifrs-full_ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Proceeds from sales of other long-term assets, classified as investing activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProceedsFromOtherLongtermAssetsClassifiedAsInvestingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other non-current assets</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ProceedsFromSalesOfOtherAssetsClassifiedAsInvestingActivities" xlink:label="gsm_ProceedsFromSalesOfOtherAssetsClassifiedAsInvestingActivities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ProceedsFromSalesOfOtherAssetsClassifiedAsInvestingActivities" xlink:to="gsm_ProceedsFromSalesOfOtherAssetsClassifiedAsInvestingActivities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ProceedsFromSalesOfOtherAssetsClassifiedAsInvestingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The cash inflow from sales of other assets that the entity does not separately disclose in the same statement or note, classified as investing activities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ProceedsFromSalesOfOtherAssetsClassifiedAsInvestingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Proceeds from sales of Other Assets, Classified as Investing Activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ProceedsFromSalesOfOtherAssetsClassifiedAsInvestingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:to="ifrs-full_CashFlowsFromUsedInInvestingActivities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash flows from (used in) investing activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash flows from investing activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net cash used by investing activities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:to="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash flows from (used in) financing activities [abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash flows from financing activities:</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DividendsPaidClassifiedAsFinancingActivities" xlink:label="ifrs-full_DividendsPaidClassifiedAsFinancingActivities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DividendsPaidClassifiedAsFinancingActivities" xlink:to="ifrs-full_DividendsPaidClassifiedAsFinancingActivities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DividendsPaidClassifiedAsFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Dividends paid, classified as financing activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="ifrs-full_DividendsPaidClassifiedAsFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Dividends paid</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_PaymentsForDebtIssueCosts" xlink:label="ifrs-full_PaymentsForDebtIssueCosts" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PaymentsForDebtIssueCosts" xlink:to="ifrs-full_PaymentsForDebtIssueCosts_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PaymentsForDebtIssueCosts_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Payments for debt issue costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_PaymentsForDebtIssueCosts_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Payment for debt issuance costs</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_RepaymentsOfOtherFinancialLiabilities" xlink:label="gsm_RepaymentsOfOtherFinancialLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_RepaymentsOfOtherFinancialLiabilities" xlink:to="gsm_RepaymentsOfOtherFinancialLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_RepaymentsOfOtherFinancialLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The cash outflow for repayments of other financial liabilities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_RepaymentsOfOtherFinancialLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Repayments of Other Financial Liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gsm_RepaymentsOfOtherFinancialLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Repayment of other financial liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ProceedsFromIssueOfBondsNotesAndDebentures" xlink:label="ifrs-full_ProceedsFromIssueOfBondsNotesAndDebentures" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProceedsFromIssueOfBondsNotesAndDebentures" xlink:to="ifrs-full_ProceedsFromIssueOfBondsNotesAndDebentures_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProceedsFromIssueOfBondsNotesAndDebentures_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Proceeds from issue of bonds, notes and debentures</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProceedsFromIssueOfBondsNotesAndDebentures_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Proceeds from debt issuance</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowingsAbstract" xlink:label="gsm_CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowingsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowingsAbstract" xlink:to="gsm_CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowingsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowingsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowingsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash Flows From Used In Increase Decrease In Current Borrowings [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_CashFlowsFromUsedInIncreaseDecreaseInCurrentBorrowingsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (decrease) in bank borrowings:</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:label="ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:to="ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Proceeds from borrowings, classified as financing activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Borrowings</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:label="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:to="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Repayments of borrowings, classified as financing activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Payments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Repaid</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ProceedsFromExerciseOfOptions" xlink:label="ifrs-full_ProceedsFromExerciseOfOptions" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProceedsFromExerciseOfOptions" xlink:to="ifrs-full_ProceedsFromExerciseOfOptions_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProceedsFromExerciseOfOptions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Proceeds from exercise of options</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProceedsFromExerciseOfOptions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Proceeds from stock option exercises</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities" xlink:label="ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities" xlink:to="ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other inflows (outflows) of cash, classified as financing activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_OtherInflowsOutflowsOfCashClassifiedAsFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other amounts (paid) received due to financing activities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:label="ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:to="ifrs-full_PaymentsToAcquireOrRedeemEntitysShares_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PaymentsToAcquireOrRedeemEntitysShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Payments to acquire or redeem entity's shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_PaymentsToAcquireOrRedeemEntitysShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Payments to acquire or redeem own shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_PaymentsToAcquireOrRedeemEntitysShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total consideration</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:to="ifrs-full_CashFlowsFromUsedInFinancingActivities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash flows from (used in) financing activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash flows from financing activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net cash provided (used) by financing activities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:label="ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_OtherAssetAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other assets abstract</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfOtherAssetsTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of other assets [text block].</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfOtherAssetsTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory" xlink:label="ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory" xlink:to="ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of share capital, reserves and other equity interest [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Equity</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfEarningsPerShareExplanatory" xlink:label="ifrs-full_DisclosureOfEarningsPerShareExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfEarningsPerShareExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of earnings per share [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfEarningsPerShareExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Earnings (loss) per ordinary share</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfOtherProvisionsAbstract" xlink:label="ifrs-full_DisclosureOfOtherProvisionsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfOtherProvisionsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provisions [abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfProvisionsExplanatory" xlink:label="ifrs-full_DisclosureOfProvisionsExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfProvisionsExplanatory" xlink:to="ifrs-full_DisclosureOfProvisionsExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfProvisionsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of provisions [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfProvisionsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provisions</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract" xlink:to="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of detailed information about borrowings [abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfBorrowingsExplanatory" xlink:label="ifrs-full_DisclosureOfBorrowingsExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfBorrowingsExplanatory" xlink:to="ifrs-full_DisclosureOfBorrowingsExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfBorrowingsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of borrowings [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfBorrowingsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Bank borrowings</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeAbstract" xlink:label="ifrs-full_DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeAbstract" xlink:to="ifrs-full_DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of finance lease and operating lease by lessee [abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfLeasesExplanatory" xlink:label="ifrs-full_DisclosureOfLeasesExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfLeasesExplanatory" xlink:to="ifrs-full_DisclosureOfLeasesExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfLeasesExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of leases [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfLeasesExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Leases</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfDebtSecuritiesExplanatory" xlink:label="ifrs-full_DisclosureOfDebtSecuritiesExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDebtSecuritiesExplanatory" xlink:to="ifrs-full_DisclosureOfDebtSecuritiesExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDebtSecuritiesExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of debt instruments [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfDebtSecuritiesExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Debt instruments</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesAbstract" xlink:label="ifrs-full_DisclosureOfFinancialLiabilitiesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinancialLiabilitiesAbstract" xlink:to="ifrs-full_DisclosureOfFinancialLiabilitiesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinancialLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of financial liabilities [abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory" xlink:label="ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory" xlink:to="ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of financial liabilities [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfFinancialLiabilitiesExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other financial liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TradeAndOtherPayablesAbstract" xlink:label="ifrs-full_TradeAndOtherPayablesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherPayablesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade and other payables.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory" xlink:label="ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory" xlink:to="ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of trade and other payables [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfTradeAndOtherPayablesExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade and other payables</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsOtherLiabilitiesAbstract" xlink:label="gsm_IfrsOtherLiabilitiesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsOtherLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">N/A.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsOtherLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfOtherLiabilitiesExplanatory" xlink:label="ifrs-full_DisclosureOfOtherLiabilitiesExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfOtherLiabilitiesExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of other liabilities [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfOtherLiabilitiesExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xlink:label="ifrs-full_MajorComponentsOfTaxExpenseIncomeAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfCommitmentsAndContingentLiabilitiesExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Guarantee commitments to third parties and contingent liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xlink:label="ifrs-full_AnalysisOfIncomeAndExpenseAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfIncomeAndExpensesTextBlock" xlink:label="gsm_DisclosureOfIncomeAndExpensesTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfIncomeAndExpensesTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The entire disclosure of income and expenses.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfIncomeAndExpensesTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of Income And Expenses [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfIncomeAndExpensesTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Income and expenses</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfRemunerationAndOtherBenefitsPaidToKeyManagementPersonnelAbstract" xlink:label="gsm_DisclosureOfRemunerationAndOtherBenefitsPaidToKeyManagementPersonnelAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfRemunerationAndOtherBenefitsPaidToKeyManagementPersonnelAbstract" xlink:to="gsm_DisclosureOfRemunerationAndOtherBenefitsPaidToKeyManagementPersonnelAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfRemunerationAndOtherBenefitsPaidToKeyManagementPersonnelAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfRemunerationAndOtherBenefitsPaidToKeyManagementPersonnelAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Remuneration of key management personnel</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfRemunerationAndOtherBenefitsPaidToKeyManagementPersonnelTextBlock" xlink:label="gsm_DisclosureOfRemunerationAndOtherBenefitsPaidToKeyManagementPersonnelTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfRemunerationAndOtherBenefitsPaidToKeyManagementPersonnelTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The entire disclosure for remuneration and other benefits paid to key management personnel.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfRemunerationAndOtherBenefitsPaidToKeyManagementPersonnelTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of remuneration and other benefits paid to key management personnel [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfRemunerationAndOtherBenefitsPaidToKeyManagementPersonnelTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Remuneration of key management personnel</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsAbstract" xlink:label="ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsAbstract" xlink:to="ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial risk management</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfFinancialRiskManagementExplanatory" xlink:label="ifrs-full_DisclosureOfFinancialRiskManagementExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinancialRiskManagementExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of financial risk management [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfFinancialRiskManagementExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial risk management</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfFairValueMeasurementExplanatory" xlink:label="ifrs-full_DisclosureOfFairValueMeasurementExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFairValueMeasurementExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of fair value measurement [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfFairValueMeasurementExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Fair value measurement</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwnersAbstract" xlink:label="ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwnersAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwnersAbstract" xlink:to="ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwnersAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwnersAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-current assets held for sale</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfNoncurrentAssetsHeldForSaleAndDiscontinuedOperationsExplanatory" xlink:label="ifrs-full_DisclosureOfNoncurrentAssetsHeldForSaleAndDiscontinuedOperationsExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfNoncurrentAssetsHeldForSaleAndDiscontinuedOperationsExplanatory" xlink:to="ifrs-full_DisclosureOfNoncurrentAssetsHeldForSaleAndDiscontinuedOperationsExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfNoncurrentAssetsHeldForSaleAndDiscontinuedOperationsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of non-current assets held for sale and discontinued operations [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfNoncurrentAssetsHeldForSaleAndDiscontinuedOperationsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-current assets held for sale</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract" xlink:label="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory" xlink:label="ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfEventsAfterReportingPeriodExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Events after the reporting period</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Description of accounting policy for goodwill [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForGoodwillExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Goodwill</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Description of accounting policy for intangible assets other than goodwill [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other intangible assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Property, plant and equipment</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Impairment of property, plant and equipment, intangible assets and goodwill</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Description of accounting policy for financial assets [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFinancialAssetsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial instruments</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Description of accounting policy for derivative financial instruments [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Derivative financial instruments and hedging activities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Description of accounting policy for fair value measurement [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Fair value measurement</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Description of accounting policy for measuring inventories [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForMeasuringInventories_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Inventories</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfAccountingPolicyForBiologicalAssetsExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForBiologicalAssetsExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForBiologicalAssetsExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForBiologicalAssetsExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForBiologicalAssetsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Description of accounting policy for biological assets [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForBiologicalAssetsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Biological assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents" xlink:label="ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents" xlink:to="ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Description of accounting policy for determining components of cash and cash equivalents [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash and cash equivalents</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DescriptionOfAccountingPolicyForProvisionsAndContingenciesPolicyTextBlock" xlink:label="gsm_DescriptionOfAccountingPolicyForProvisionsAndContingenciesPolicyTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DescriptionOfAccountingPolicyForProvisionsAndContingenciesPolicyTextBlock" xlink:to="gsm_DescriptionOfAccountingPolicyForProvisionsAndContingenciesPolicyTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DescriptionOfAccountingPolicyForProvisionsAndContingenciesPolicyTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The description of the entity's accounting policy for provisions and contingencies.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DescriptionOfAccountingPolicyForProvisionsAndContingenciesPolicyTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Description Of Accounting Policy For Provisions And Contingencies [Policy Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DescriptionOfAccountingPolicyForProvisionsAndContingenciesPolicyTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provisions and contingencies</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Description of accounting policy for leases [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForLeasesExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Leases</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DescriptionOfAccountingPolicyForDeterminingCurrentAssetsAndLiabilitiesPolicyTextBlock" xlink:label="gsm_DescriptionOfAccountingPolicyForDeterminingCurrentAssetsAndLiabilitiesPolicyTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DescriptionOfAccountingPolicyForDeterminingCurrentAssetsAndLiabilitiesPolicyTextBlock" xlink:to="gsm_DescriptionOfAccountingPolicyForDeterminingCurrentAssetsAndLiabilitiesPolicyTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DescriptionOfAccountingPolicyForDeterminingCurrentAssetsAndLiabilitiesPolicyTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The description of the entity's accounting policy for current assets and liabilities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DescriptionOfAccountingPolicyForDeterminingCurrentAssetsAndLiabilitiesPolicyTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Description Of Accounting Policy For Determining Current Assets And Liabilities [Policy Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DescriptionOfAccountingPolicyForDeterminingCurrentAssetsAndLiabilitiesPolicyTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current assets and liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Description of accounting policy for income tax [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForIncomeTaxExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Income taxes</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Description of accounting policy for foreign currency translation [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Foreign currency transactions</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Description of accounting policy for recognition of revenue [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForRecognitionOfRevenue_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Revenue recognition</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfAccountingPolicyForExpensesExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForExpensesExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForExpensesExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForExpensesExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForExpensesExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Description of accounting policy for expenses [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForExpensesExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Expense recognition</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfAccountingPolicyForGovernmentGrants" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForGovernmentGrants" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForGovernmentGrants" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForGovernmentGrants_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForGovernmentGrants_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Description of accounting policy for government grants [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForGovernmentGrants_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grants</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfAccountingPolicyForTerminationBenefits" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForTerminationBenefits" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForTerminationBenefits" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForTerminationBenefits_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForTerminationBenefits_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Description of accounting policy for termination benefits [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForTerminationBenefits_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Termination benefits</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DescriptionOfAccountingPolicyForCo2EmissionAllowancesPolicyTextBlock" xlink:label="gsm_DescriptionOfAccountingPolicyForCo2EmissionAllowancesPolicyTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DescriptionOfAccountingPolicyForCo2EmissionAllowancesPolicyTextBlock" xlink:to="gsm_DescriptionOfAccountingPolicyForCo2EmissionAllowancesPolicyTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DescriptionOfAccountingPolicyForCo2EmissionAllowancesPolicyTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The description of the entity's accounting policy for CO2 emission allowances.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DescriptionOfAccountingPolicyForCo2EmissionAllowancesPolicyTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Description Of Accounting Policy For CO2 Emission Allowances [Policy Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DescriptionOfAccountingPolicyForCo2EmissionAllowancesPolicyTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">CO2 emission allowances</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Description of accounting policy for share-based payment transactions [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Share-based compensation</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperationsExplanatory" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperationsExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperationsExplanatory" xlink:to="ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperationsExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperationsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Description of accounting policy for non-current assets or disposal groups classified as held for sale and discontinued operations [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfAccountingPolicyForNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperationsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Assets and disposal groups classified as held for sale, liabilities associated with assets held for sale and discontinued operations</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DescriptionOfAccountingPolicyForConsolidatedStatementOfCashFlowPolicyTextBlock" xlink:label="gsm_DescriptionOfAccountingPolicyForConsolidatedStatementOfCashFlowPolicyTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DescriptionOfAccountingPolicyForConsolidatedStatementOfCashFlowPolicyTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The description of the entity's accounting policy for the statement of cash flows.</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfProductsAndServicesExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of products and services [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfProductsAndServicesExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of sales by product line</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillExplanatory" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of changes in the carrying amount of goodwill</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfAssumptionsUsedInDeterminationOfRecoverableValueOfBusinessAcquisitionsTableTextBlock" xlink:label="gsm_DisclosureOfAssumptionsUsedInDeterminationOfRecoverableValueOfBusinessAcquisitionsTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfAssumptionsUsedInDeterminationOfRecoverableValueOfBusinessAcquisitionsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The disclosure of key assumptions used in the determination of recoverable value of business acquisitions.</label>
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    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfSensitivityToChangesInAssumptionsUsedToDetermineImpairmentTableTextBlock" xlink:label="gsm_DisclosureOfSensitivityToChangesInAssumptionsUsedToDetermineImpairmentTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfSensitivityToChangesInAssumptionsUsedToDetermineImpairmentTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The disclosure of sensitivity to changes in assumptions used to determine impairment.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfSensitivityToChangesInAssumptionsUsedToDetermineImpairmentTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Of Sensitivity To Changes In Assumptions Used To Determine Impairment [Table Text Block]</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfIntangibleAssetsMaterialToEntityExplanatory" xlink:label="ifrs-full_DisclosureOfIntangibleAssetsMaterialToEntityExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfIntangibleAssetsMaterialToEntityExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of changes in the carrying amount of other intangible assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of detailed information about property, plant and equipment [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of property, plant and equipment, net of related accumulated depreciation and impairment</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeExplanatory" xlink:label="ifrs-full_DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Summary of finance leases held by the Company included in Plant and Machinery</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfClassificationOfFinancialAssetsTextBlock" xlink:label="gsm_DisclosureOfClassificationOfFinancialAssetsTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfClassificationOfFinancialAssetsTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The disclosure of classification financial assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfClassificationOfFinancialAssetsTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of classification of financial assets [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfClassificationOfFinancialAssetsTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of classification financial assets</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfCurrentAndNoncurrentFinancialAssetsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of current and noncurrent financial assets [table text block]</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory" xlink:label="ifrs-full_DisclosureOfTradeAndOtherReceivablesExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsScheduleOfInventoryCurrentTableTextBlock" xlink:label="gsm_IfrsScheduleOfInventoryCurrentTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsScheduleOfInventoryCurrentTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsScheduleOfInventoryCurrentTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs Schedule of inventory current [Table text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsScheduleOfInventoryCurrentTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of Inventory</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfOtherAssetsExplanatory" xlink:label="ifrs-full_DisclosureOfOtherAssetsExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfOtherAssetsExplanatory" xlink:to="ifrs-full_DisclosureOfOtherAssetsExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfOtherAssetsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of other assets [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfOtherAssetsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of other non current and current assets</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfMajorityShareholdersTableTextBlock" xlink:label="gsm_DisclosureOfMajorityShareholdersTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfMajorityShareholdersTableTextBlock" xlink:to="gsm_DisclosureOfMajorityShareholdersTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfMajorityShareholdersTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The disclosure of majority shareholders.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfMajorityShareholdersTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Of Majority Shareholders [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfMajorityShareholdersTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Summary of majority shareholders</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfValuationAdjustmentsTableTextBlock" xlink:label="gsm_DisclosureOfValuationAdjustmentsTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfValuationAdjustmentsTableTextBlock" xlink:to="gsm_DisclosureOfValuationAdjustmentsTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfValuationAdjustmentsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The disclosure of valuation adjustments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfValuationAdjustmentsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Of Valuation Adjustments [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfValuationAdjustmentsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The disclosure of valuation adjustments.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfCapitalStructureNetFinancialDebtTableTextBlock" xlink:label="gsm_DisclosureOfCapitalStructureNetFinancialDebtTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfCapitalStructureNetFinancialDebtTableTextBlock" xlink:to="gsm_DisclosureOfCapitalStructureNetFinancialDebtTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfCapitalStructureNetFinancialDebtTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The disclosure of capital structure and net financial debt.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfCapitalStructureNetFinancialDebtTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Of Capital Structure Net Financial Debt [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfCapitalStructureNetFinancialDebtTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of net financial debt</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfGrossFinancialDebtDistributionTableTextBlock" xlink:label="gsm_DisclosureOfGrossFinancialDebtDistributionTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfGrossFinancialDebtDistributionTableTextBlock" xlink:to="gsm_DisclosureOfGrossFinancialDebtDistributionTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfGrossFinancialDebtDistributionTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The disclosure of gross financial debt.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfGrossFinancialDebtDistributionTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Of Gross Financial Debt Distribution [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfGrossFinancialDebtDistributionTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Summary of gross financial debt</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfNonControllingInterestChangesExplanatoryTableTextBlock" xlink:label="gsm_DisclosureOfNonControllingInterestChangesExplanatoryTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfNonControllingInterestChangesExplanatoryTableTextBlock" xlink:to="gsm_DisclosureOfNonControllingInterestChangesExplanatoryTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfNonControllingInterestChangesExplanatoryTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The disclosure of changes to non-controlling interest.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfNonControllingInterestChangesExplanatoryTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Of Non Controlling Interest Changes Explanatory [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfNonControllingInterestChangesExplanatoryTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of changes in non-controlling interests</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfNonControllingInterestFinancialInformationExplanatoryTableTextBlock" xlink:label="gsm_DisclosureOfNonControllingInterestFinancialInformationExplanatoryTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfNonControllingInterestFinancialInformationExplanatoryTableTextBlock" xlink:to="gsm_DisclosureOfNonControllingInterestFinancialInformationExplanatoryTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfNonControllingInterestFinancialInformationExplanatoryTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The disclosure of financial information relating to non-controlling interests.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfNonControllingInterestFinancialInformationExplanatoryTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Of Non Controlling Interest Financial Information Explanatory [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfNonControllingInterestFinancialInformationExplanatoryTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Summary of financial information for non-controlling interests</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_EarningsPerShareTable" xlink:label="ifrs-full_EarningsPerShareTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EarningsPerShareTable" xlink:to="ifrs-full_EarningsPerShareTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EarningsPerShareTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Earnings per share [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_EarningsPerShareLineItems" xlink:label="ifrs-full_EarningsPerShareLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EarningsPerShareLineItems" xlink:to="ifrs-full_EarningsPerShareLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EarningsPerShareLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Earnings per share [line items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_EarningsPerShareExplanatory" xlink:label="ifrs-full_EarningsPerShareExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EarningsPerShareExplanatory" xlink:to="ifrs-full_EarningsPerShareExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EarningsPerShareExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Earnings per share [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_EarningsPerShareExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of earnings (loss) per share calculation</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfOtherProvisionsTable" xlink:label="ifrs-full_DisclosureOfOtherProvisionsTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfOtherProvisionsTable" xlink:to="ifrs-full_DisclosureOfOtherProvisionsTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfOtherProvisionsTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of other provisions [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_GeographicalAreasAxis" xlink:label="ifrs-full_GeographicalAreasAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GeographicalAreasAxis" xlink:to="ifrs-full_GeographicalAreasAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GeographicalAreasAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Geographical areas [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_GeographicalAreasMember" xlink:label="ifrs-full_GeographicalAreasMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GeographicalAreasMember" xlink:to="ifrs-full_GeographicalAreasMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GeographicalAreasMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Geographical Areas [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GeographicalAreasMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Geographical areas [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_FR" xlink:label="country_FR" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="country_FR" xlink:to="country_FR_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="country_FR_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">F [R]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="country_FR_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">France</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_ZA" xlink:label="country_ZA" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="country_ZA" xlink:to="country_ZA_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="country_ZA_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Z [A]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="country_ZA_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">South Africa</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_VE" xlink:label="country_VE" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="country_VE" xlink:to="country_VE_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="country_VE_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">V [E]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="country_VE_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Venezuela</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_NorthAmericaMember" xlink:label="srt_NorthAmericaMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_NorthAmericaMember" xlink:to="srt_NorthAmericaMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_NorthAmericaMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">North America [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_NorthAmericaMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">North America</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfOtherProvisionsLineItems" xlink:label="ifrs-full_DisclosureOfOtherProvisionsLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfOtherProvisionsLineItems" xlink:to="ifrs-full_DisclosureOfOtherProvisionsLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfOtherProvisionsLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of other provisions [line items]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureShowingBreakdownOfNonCurrentAndCurrentProvisionsTableTextBlock" xlink:label="gsm_DisclosureShowingBreakdownOfNonCurrentAndCurrentProvisionsTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureShowingBreakdownOfNonCurrentAndCurrentProvisionsTableTextBlock" xlink:to="gsm_DisclosureShowingBreakdownOfNonCurrentAndCurrentProvisionsTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureShowingBreakdownOfNonCurrentAndCurrentProvisionsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tabular disclosure showing breakdown of non-current and current provisions.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureShowingBreakdownOfNonCurrentAndCurrentProvisionsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Showing Breakdown Of Non Current And Current Provisions [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureShowingBreakdownOfNonCurrentAndCurrentProvisionsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule showing breakdown of non-current and current provisions</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureShowingChangesInProvisionsTableTextBlock" xlink:label="gsm_DisclosureShowingChangesInProvisionsTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureShowingChangesInProvisionsTableTextBlock" xlink:to="gsm_DisclosureShowingChangesInProvisionsTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureShowingChangesInProvisionsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tabular disclosure showing changes in provisions.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureShowingChangesInProvisionsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Showing Changes In Provisions [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureShowingChangesInProvisionsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of changes in provisions</label>
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    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DefinedBenefitPlanEstimatedFutureBenefitPaymentsTableTextBlock" xlink:label="gsm_DefinedBenefitPlanEstimatedFutureBenefitPaymentsTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DefinedBenefitPlanEstimatedFutureBenefitPaymentsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Defined Benefit Plan Estimated Future Benefit Payments [Table Text Block]</label>
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    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureShowingPercentageBreakdownOfPlanAssetsTableTextBlock" xlink:label="gsm_DisclosureShowingPercentageBreakdownOfPlanAssetsTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureShowingPercentageBreakdownOfPlanAssetsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tabular disclosure showing percentage breakdown of plan assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureShowingPercentageBreakdownOfPlanAssetsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Showing Percentage Breakdown Of Plan Assets [Table Text Block]</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfFairValueOfPlanAssetsExplanatory" xlink:label="ifrs-full_DisclosureOfFairValueOfPlanAssetsExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfFairValueOfPlanAssetsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule showing fair value rollforward of plan assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory" xlink:label="ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of sensitivity analysis for actuarial assumptions [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfSensitivityAnalysisForActuarialAssumptionsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Summary of the main actuarial assumptions used to calculate obligations</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfBenefitObligationsAndFundedStatusTableTextBlock" xlink:label="gsm_DisclosureOfBenefitObligationsAndFundedStatusTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfBenefitObligationsAndFundedStatusTableTextBlock" xlink:to="gsm_DisclosureOfBenefitObligationsAndFundedStatusTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfBenefitObligationsAndFundedStatusTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tabular disclosure of benefit obligations and funded status.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfBenefitObligationsAndFundedStatusTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Of Benefit Obligations And Funded Status [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfBenefitObligationsAndFundedStatusTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule showing reconciliation of benefit obligations, plan assets and funded status</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory" xlink:to="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of detailed information about borrowings [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of non-current and current bank borrowings</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfCreditFacilitiesTableTextBlock" xlink:label="gsm_DisclosureOfCreditFacilitiesTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfCreditFacilitiesTableTextBlock" xlink:to="gsm_DisclosureOfCreditFacilitiesTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfCreditFacilitiesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tabular disclosure of  credit facilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfCreditFacilitiesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of Credit facilities Table Text Block</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfDetailedInformationAboutBorrowingsByCurrencyTableTextBlock" xlink:label="gsm_DisclosureOfDetailedInformationAboutBorrowingsByCurrencyTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfDetailedInformationAboutBorrowingsByCurrencyTableTextBlock" xlink:to="gsm_DisclosureOfDetailedInformationAboutBorrowingsByCurrencyTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfDetailedInformationAboutBorrowingsByCurrencyTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tabular disclosure of detailed information about borrowings by currency.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfDetailedInformationAboutBorrowingsByCurrencyTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Of Detailed Information About Borrowings By Currency [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfDetailedInformationAboutBorrowingsByCurrencyTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of non-current and current bank borrowings by currency</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfDetailedInformationAboutNoncurrentBorrowingsByMaturityTableTextBlock" xlink:label="gsm_DisclosureOfDetailedInformationAboutNoncurrentBorrowingsByMaturityTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfDetailedInformationAboutNoncurrentBorrowingsByMaturityTableTextBlock" xlink:to="gsm_DisclosureOfDetailedInformationAboutNoncurrentBorrowingsByMaturityTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfDetailedInformationAboutNoncurrentBorrowingsByMaturityTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tabular disclosure of detailed information about noncurrent borrowings by maturity.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfDetailedInformationAboutNoncurrentBorrowingsByMaturityTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Of Detailed Information About Noncurrent Borrowings By Maturity [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfDetailedInformationAboutNoncurrentBorrowingsByMaturityTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of non-current bank borrowings by maturity</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfObligationsUnderFinanceLeasesTableTextBlock" xlink:label="gsm_DisclosureOfObligationsUnderFinanceLeasesTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfObligationsUnderFinanceLeasesTableTextBlock" xlink:to="gsm_DisclosureOfObligationsUnderFinanceLeasesTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfObligationsUnderFinanceLeasesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tabular disclosure of obligations under finance leases.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfObligationsUnderFinanceLeasesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Of Obligations Under Finance Leases [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfObligationsUnderFinanceLeasesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of non-current and current obligations under finance leases</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureByMaturityOfNonCurrentFinanceLeasePaymentObligationsTableTextBlock" xlink:label="gsm_DisclosureByMaturityOfNonCurrentFinanceLeasePaymentObligationsTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureByMaturityOfNonCurrentFinanceLeasePaymentObligationsTableTextBlock" xlink:to="gsm_DisclosureByMaturityOfNonCurrentFinanceLeasePaymentObligationsTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureByMaturityOfNonCurrentFinanceLeasePaymentObligationsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tabular disclosure of maturity of non-current finance lease payment obligations.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureByMaturityOfNonCurrentFinanceLeasePaymentObligationsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure By Maturity Of Non Current Finance Lease Payment Obligations [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureByMaturityOfNonCurrentFinanceLeasePaymentObligationsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of non-current payment obligations under finance leases by maturity</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfMinimumFinanceLeasePaymentsTableTextBlock" xlink:label="gsm_DisclosureOfMinimumFinanceLeasePaymentsTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfMinimumFinanceLeasePaymentsTableTextBlock" xlink:to="gsm_DisclosureOfMinimumFinanceLeasePaymentsTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfMinimumFinanceLeasePaymentsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tabular disclosures of minimum finance lease payments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfMinimumFinanceLeasePaymentsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of Minimum Finance Lease Payments [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfMinimumFinanceLeasePaymentsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of minimum lease payments under finance lease</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfMinimumOperatingLeasePaymentsTableTextBlock" xlink:label="gsm_DisclosureOfMinimumOperatingLeasePaymentsTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfMinimumOperatingLeasePaymentsTableTextBlock" xlink:to="gsm_DisclosureOfMinimumOperatingLeasePaymentsTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfMinimumOperatingLeasePaymentsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tabular disclosure of minimum operating lease payments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfMinimumOperatingLeasePaymentsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Of Minimum Operating Lease Payments [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfMinimumOperatingLeasePaymentsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of minimum lease payments on operating leases by maturity</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfDetailedInformationAboutDebtInstrumentsTextBlock" xlink:label="gsm_DisclosureOfDetailedInformationAboutDebtInstrumentsTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfDetailedInformationAboutDebtInstrumentsTextBlock" xlink:to="gsm_DisclosureOfDetailedInformationAboutDebtInstrumentsTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfDetailedInformationAboutDebtInstrumentsTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of detailed information about debt instruments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfDetailedInformationAboutDebtInstrumentsTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Of Detailed Information About Debt Instruments [Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfDetailedInformationAboutDebtInstrumentsTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of debt instruments</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfOtherFinancialLiabilitiesTableTextBlock" xlink:label="gsm_DisclosureOfOtherFinancialLiabilitiesTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfOtherFinancialLiabilitiesTableTextBlock" xlink:to="gsm_DisclosureOfOtherFinancialLiabilitiesTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfOtherFinancialLiabilitiesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tabular disclosure showing breakdown of other financial liabilities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfOtherFinancialLiabilitiesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Of Other Financial Liabilities [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfOtherFinancialLiabilitiesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of other financial liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory" xlink:label="ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory" xlink:to="ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of derivative financial instruments [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfDerivativeFinancialInstrumentsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of Derivative financial instruments</label>
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    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ScheduleOfTradeAndOtherPayablesTableTextBlock" xlink:label="gsm_ScheduleOfTradeAndOtherPayablesTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ScheduleOfTradeAndOtherPayablesTableTextBlock" xlink:to="gsm_ScheduleOfTradeAndOtherPayablesTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ScheduleOfTradeAndOtherPayablesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tabular disclosure of the components of trade and other payables.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ScheduleOfTradeAndOtherPayablesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule Of Trade And Other Payables [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ScheduleOfTradeAndOtherPayablesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of trade and other payables</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfBusinessCombinationsTable" xlink:label="ifrs-full_DisclosureOfBusinessCombinationsTable" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfBusinessCombinationsTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of detailed information about business combination [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementLineItems" xlink:label="us-gaap_StatementLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StatementLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfOtherLiabilitiesTableTextBlock" xlink:label="gsm_DisclosureOfOtherLiabilitiesTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfOtherLiabilitiesTableTextBlock" xlink:to="gsm_DisclosureOfOtherLiabilitiesTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfOtherLiabilitiesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The disclosure of all other liabilities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfOtherLiabilitiesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of other liabilities [table text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfOtherLiabilitiesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of other liabilities</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfTaxPayablesTableTextBlock" xlink:label="gsm_DisclosureOfTaxPayablesTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfTaxPayablesTableTextBlock" xlink:to="gsm_DisclosureOfTaxPayablesTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfTaxPayablesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The disclosure of liabilities of tax payables..</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfTaxPayablesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of tax payables [table text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfTaxPayablesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of tax payables</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory" xlink:label="ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory" xlink:to="ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of existence of share based payment arrangements</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfSharebasedPaymentArrangementsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of share based payment arrangements</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfPerformanceConditionsOfShareOptionsGrantedTableTextBlock" xlink:label="gsm_DisclosureOfPerformanceConditionsOfShareOptionsGrantedTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfPerformanceConditionsOfShareOptionsGrantedTableTextBlock" xlink:to="gsm_DisclosureOfPerformanceConditionsOfShareOptionsGrantedTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfPerformanceConditionsOfShareOptionsGrantedTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The disclosure of performance conditions for share options granted.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfPerformanceConditionsOfShareOptionsGrantedTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of performance conditions of share options granted [table text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfPerformanceConditionsOfShareOptionsGrantedTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of performance condition of share options granted</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfAssumptionsUsedForEstimationOfFairValueOfStockOptionsTableTextBlock" xlink:label="gsm_DisclosureOfAssumptionsUsedForEstimationOfFairValueOfStockOptionsTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfAssumptionsUsedForEstimationOfFairValueOfStockOptionsTableTextBlock" xlink:to="gsm_DisclosureOfAssumptionsUsedForEstimationOfFairValueOfStockOptionsTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfAssumptionsUsedForEstimationOfFairValueOfStockOptionsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The disclosure of assumptions used for estimation of fair value of stock options.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfAssumptionsUsedForEstimationOfFairValueOfStockOptionsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of assumptions used for estimation of fair value of stock options [table text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfAssumptionsUsedForEstimationOfFairValueOfStockOptionsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of assumptions used to estimate the fair value of Ferroglobe stock option</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory" xlink:label="ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory" xlink:to="ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of number and weighted average remaining contractual life of outstanding share options [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of summary of options outstanding</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:label="gsm_IfrsScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:to="gsm_IfrsScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs Schedule Of Components Of Income Tax Expense Benefit [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of income taxes</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xlink:label="gsm_IfrsScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs Schedule Of Effective Income Tax Rate Reconciliation Table Text Block</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of statutory income tax rate</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ScheduleOfCurrentTaxAssetsAndLiabilitiesTableTextBlock" xlink:label="gsm_ScheduleOfCurrentTaxAssetsAndLiabilitiesTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ScheduleOfCurrentTaxAssetsAndLiabilitiesTableTextBlock" xlink:to="gsm_ScheduleOfCurrentTaxAssetsAndLiabilitiesTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ScheduleOfCurrentTaxAssetsAndLiabilitiesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tabular disclosure of the components of net current tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all current tax liabilities, the total of all current tax assets, the total valuation allowance recognized for current tax assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ScheduleOfCurrentTaxAssetsAndLiabilitiesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of Current Tax Assets and Liabilities [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ScheduleOfCurrentTaxAssetsAndLiabilitiesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of current tax assets and liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfDeferredTaxesExplanatory" xlink:label="ifrs-full_DisclosureOfDeferredTaxesExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDeferredTaxesExplanatory" xlink:to="ifrs-full_DisclosureOfDeferredTaxesExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDeferredTaxesExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of deferred taxes [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfDeferredTaxesExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of changes in deferred tax assets and liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory" xlink:label="ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of temporary difference, unused tax losses and unused tax credits [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of unrecognised deductible temporary differences, unused tax losses and unused tax credits</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable" xlink:to="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of transactions between related parties [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems" xlink:to="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of transactions between related parties [line items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Remuneration and other benefits paid to key management personnel</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfTransactionsBetweenRelatedPartiesLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Related party transactions and balances</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ScheduleOfBalancesWithRelatedPartiesTableTextBlock" xlink:label="gsm_ScheduleOfBalancesWithRelatedPartiesTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ScheduleOfBalancesWithRelatedPartiesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tabular disclosure of balances with related parties.</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfDepreciationAndAmortisationExpenseExplanatory" xlink:label="ifrs-full_DisclosureOfDepreciationAndAmortisationExpenseExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDepreciationAndAmortisationExpenseExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of depreciation and amortisation expense [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfDepreciationAndAmortisationExpenseExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of depreciation and amortization charges, operating allowances and write-downs</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfFinanceIncomeExplanatory" xlink:label="ifrs-full_DisclosureOfFinanceIncomeExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinanceIncomeExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of finance income [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfFinanceIncomeExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of finance income</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfFinanceCostExplanatory" xlink:label="ifrs-full_DisclosureOfFinanceCostExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinanceCostExplanatory" xlink:to="ifrs-full_DisclosureOfFinanceCostExplanatory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinanceCostExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of finance cost [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfFinanceCostExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of finance costs</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitExplanatory" xlink:label="ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfInformationForEachMaterialImpairmentLossRecognisedOrReversedForIndividualAssetOrCashgeneratingUnitExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of changes in impairment losses</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfGainLossOnDisposalOfNonCurrentAssetsTableTextBlock" xlink:label="gsm_DisclosureOfGainLossOnDisposalOfNonCurrentAssetsTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfGainLossOnDisposalOfNonCurrentAssetsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The entire disclosure of Gain (loss) on disposals of non-current assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfGainLossOnDisposalOfNonCurrentAssetsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Of Gain Loss on Disposal Of Non-current Assets [Table Text Block]</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory" xlink:label="ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of information about key management personnel [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfInformationAboutKeyManagementPersonnelExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of remuneration of key management personal</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfInterestBearingFinancialLiabilitiesTableTextBlock" xlink:label="gsm_DisclosureOfInterestBearingFinancialLiabilitiesTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfInterestBearingFinancialLiabilitiesTableTextBlock" xlink:to="gsm_DisclosureOfInterestBearingFinancialLiabilitiesTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfInterestBearingFinancialLiabilitiesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The disclosure of interest bearing financial liabilities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfInterestBearingFinancialLiabilitiesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of Interest Bearing Financial Liabilities [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfInterestBearingFinancialLiabilitiesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of interest bearing financial liabilities</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfMaturityOfUndiscountedCashFlowsOfFinancialInstrumentsTableTextBlock" xlink:label="gsm_DisclosureOfMaturityOfUndiscountedCashFlowsOfFinancialInstrumentsTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfMaturityOfUndiscountedCashFlowsOfFinancialInstrumentsTableTextBlock" xlink:to="gsm_DisclosureOfMaturityOfUndiscountedCashFlowsOfFinancialInstrumentsTableTextBlock_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfMaturityOfUndiscountedCashFlowsOfFinancialInstrumentsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The tabular disclosure of the maturities of the entity's financial liabilities based on contractual undiscounted payments. The cash flows for debt instruments assume that principal of the instrument is repaid at maturity.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfMaturityOfUndiscountedCashFlowsOfFinancialInstrumentsTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Of Maturity Of Undiscounted Cash Flows Of Financial Instruments [Table Text Block]</label>
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    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfGrossInflowsAndOutflowsMaturityTableTextBlock" xlink:label="gsm_DisclosureOfGrossInflowsAndOutflowsMaturityTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfGrossInflowsAndOutflowsMaturityTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The tabular disclosure of the gross inflow and outflows by maturity of financial instruments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfGrossInflowsAndOutflowsMaturityTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Of Gross Inflows And Outflows Maturity [Table Text Block]</label>
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    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesExplanatory" xlink:label="ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesExplanatory" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of reconciliation of liabilities arising from financing activities [text block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesExplanatory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of changes in liabilities arising from financing activities</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesTableTextBlock" xlink:label="gsm_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Of Fair Value Measurement Of Assets And Liabilities [Table Text Block]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfFairValueMeasurementOfAssetsAndLiabilitiesTableTextBlock_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule of assets and liabilities measured at fair value</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfChangesFairValueOfBiologicalAssetsClassifiedAtLevel3InHierarchyTableTextBlock" xlink:label="gsm_DisclosureOfChangesFairValueOfBiologicalAssetsClassifiedAtLevel3InHierarchyTableTextBlock" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesTable" xlink:label="ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesTable" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of subsidiaries [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_SignificantInvestmentsInSubsidiariesAxis" xlink:label="ifrs-full_SignificantInvestmentsInSubsidiariesAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_SignificantInvestmentsInSubsidiariesAxis" xlink:to="ifrs-full_SignificantInvestmentsInSubsidiariesAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_SignificantInvestmentsInSubsidiariesAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Subsidiaries [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_EntitysTotalForSubsidiariesMember" xlink:label="ifrs-full_EntitysTotalForSubsidiariesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EntitysTotalForSubsidiariesMember" xlink:to="ifrs-full_EntitysTotalForSubsidiariesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EntitysTotalForSubsidiariesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Entitys Total For Subsidiaries [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_EntitysTotalForSubsidiariesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Entity's total for subsidiaries [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_AlabamaSandAndGravelIncMember" xlink:label="gsm_AlabamaSandAndGravelIncMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_AlabamaSandAndGravelIncMember" xlink:to="gsm_AlabamaSandAndGravelIncMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_AlabamaSandAndGravelIncMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Alabama Sand and Gravel, Inc Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_AlabamaSandAndGravelIncMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Alabama Sand And Gravel Inc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_AlabamaSandAndGravelIncMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Alabama Sand and Gravel, Inc</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_AldenResourcesLlcMember" xlink:label="gsm_AldenResourcesLlcMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_AldenResourcesLlcMember" xlink:to="gsm_AldenResourcesLlcMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_AldenResourcesLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Alden Resources, LLC Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_AldenResourcesLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Alden Resources Llc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_AldenResourcesLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Alden Resources, LLC</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_AldenSalesCorporationLlcMember" xlink:label="gsm_AldenSalesCorporationLlcMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_AldenSalesCorporationLlcMember" xlink:to="gsm_AldenSalesCorporationLlcMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_AldenSalesCorporationLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Alden Sales Corporation, LL Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_AldenSalesCorporationLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Alden Sales Corporation Llc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_AldenSalesCorporationLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Alden Sales Corporation, LLC</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ArlResourcesLlcMember" xlink:label="gsm_ArlResourcesLlcMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ArlResourcesLlcMember" xlink:to="gsm_ArlResourcesLlcMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ArlResourcesLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for ARL Resources, LLC. industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ArlResourcesLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Arl Resources Llc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ArlResourcesLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">ARL Resources, LLC</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ArlServicesLlcMember" xlink:label="gsm_ArlServicesLlcMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ArlServicesLlcMember" xlink:to="gsm_ArlServicesLlcMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ArlServicesLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for ARL Services, LLC industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ArlServicesLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Arl Services Llc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ArlServicesLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">ARL Services, LLC</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CoreMetalsGroupHoldingsLlcMember" xlink:label="gsm_CoreMetalsGroupHoldingsLlcMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CoreMetalsGroupHoldingsLlcMember" xlink:to="gsm_CoreMetalsGroupHoldingsLlcMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CoreMetalsGroupHoldingsLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Core Metals Group Holdings, LL Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CoreMetalsGroupHoldingsLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Core Metals Group Holdings Llc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_CoreMetalsGroupHoldingsLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Core Metals Group Holdings, LLC</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CoreMetalsGroupLlcMember" xlink:label="gsm_CoreMetalsGroupLlcMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CoreMetalsGroupLlcMember" xlink:to="gsm_CoreMetalsGroupLlcMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CoreMetalsGroupLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Core Metals Group, LL Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CoreMetalsGroupLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Core Metals Group Llc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_CoreMetalsGroupLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Core Metals Group, LLC</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GatliffServicesLlcMember" xlink:label="gsm_GatliffServicesLlcMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GatliffServicesLlcMember" xlink:to="gsm_GatliffServicesLlcMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GatliffServicesLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Gatliff Services, LL Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GatliffServicesLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gatliff Services Llc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GatliffServicesLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gatliff Services, LLC</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GbgHoldingsLlcMember" xlink:label="gsm_GbgHoldingsLlcMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GbgHoldingsLlcMember" xlink:to="gsm_GbgHoldingsLlcMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GbgHoldingsLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the GBG Holdings, LL Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GbgHoldingsLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gbg Holdings Llc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GbgHoldingsLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">GBG Holdings, LLC</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GlobeMetallurgicalInc.Member" xlink:label="gsm_GlobeMetallurgicalInc.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GlobeMetallurgicalInc.Member" xlink:to="gsm_GlobeMetallurgicalInc.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GlobeMetallurgicalInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Globe Metallurgical Inc Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GlobeMetallurgicalInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Globe Metallurgical Inc. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GlobeMetallurgicalInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Globe Metallurgical Inc.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GlobeMetalsEnterprisesInc.Member" xlink:label="gsm_GlobeMetalsEnterprisesInc.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GlobeMetalsEnterprisesInc.Member" xlink:to="gsm_GlobeMetalsEnterprisesInc.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GlobeMetalsEnterprisesInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Globe Metals Enterprises, Inc Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GlobeMetalsEnterprisesInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Globe Metals Enterprises Inc. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GlobeMetalsEnterprisesInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Globe Metals Enterprises, Inc.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GsmAlloysIInc.Member" xlink:label="gsm_GsmAlloysIInc.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GsmAlloysIInc.Member" xlink:to="gsm_GsmAlloysIInc.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GsmAlloysIInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the GSM Alloys I, Inc Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GsmAlloysIInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gsm Alloys I Inc. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GsmAlloysIInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">GSM Alloys I, Inc.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GsmAlloysIiInc.Member" xlink:label="gsm_GsmAlloysIiInc.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GsmAlloysIiInc.Member" xlink:to="gsm_GsmAlloysIiInc.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GsmAlloysIiInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the GSM Alloys II, Inc Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GsmAlloysIiInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gsm Alloys Ii Inc. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GsmAlloysIiInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">GSM Alloys II, Inc.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GsmEnterprisesHoldingsInc.Member" xlink:label="gsm_GsmEnterprisesHoldingsInc.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GsmEnterprisesHoldingsInc.Member" xlink:to="gsm_GsmEnterprisesHoldingsInc.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GsmEnterprisesHoldingsInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the GSM Enterprises Holdings, Inc Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GsmEnterprisesHoldingsInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gsm Enterprises Holdings Inc. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GsmEnterprisesHoldingsInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">GSM Enterprises Holdings, Inc.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GsmEnterprisesLlcMember" xlink:label="gsm_GsmEnterprisesLlcMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GsmEnterprisesLlcMember" xlink:to="gsm_GsmEnterprisesLlcMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GsmEnterprisesLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for GSM Enterprises, LLC industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GsmEnterprisesLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gsm Enterprises Llc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GsmEnterprisesLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">GSM Enterprises, LLC</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GsmSalesInc.Member" xlink:label="gsm_GsmSalesInc.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GsmSalesInc.Member" xlink:to="gsm_GsmSalesInc.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GsmSalesInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for GSM Sales, Inc, industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GsmSalesInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gsm Sales Inc. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GsmSalesInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">GSM Sales, Inc.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_LfResourcesInc.Member" xlink:label="gsm_LfResourcesInc.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_LfResourcesInc.Member" xlink:to="gsm_LfResourcesInc.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_LfResourcesInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the LF Resources, Inc Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_LfResourcesInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Lf Resources Inc. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_LfResourcesInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">LF Resources, Inc.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_MetallurgicalProcessMaterialsLlcMember" xlink:label="gsm_MetallurgicalProcessMaterialsLlcMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_MetallurgicalProcessMaterialsLlcMember" xlink:to="gsm_MetallurgicalProcessMaterialsLlcMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_MetallurgicalProcessMaterialsLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Metallurgical Process Materials, LLC industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_MetallurgicalProcessMaterialsLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Metallurgical Process Materials Llc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_MetallurgicalProcessMaterialsLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Metallurgical Process Materials, LLC</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NorchemInc.Member" xlink:label="gsm_NorchemInc.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NorchemInc.Member" xlink:to="gsm_NorchemInc.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NorchemInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Norchem, Inc Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NorchemInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Norchem Inc. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NorchemInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Norchem, Inc.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_QsipCanadaUlcMember" xlink:label="gsm_QsipCanadaUlcMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_QsipCanadaUlcMember" xlink:to="gsm_QsipCanadaUlcMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_QsipCanadaUlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the QSIP Canada UL Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_QsipCanadaUlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Qsip Canada Ulc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_QsipCanadaUlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">QSIP Canada ULC</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_QuebecSiliconGeneralPartnerMember" xlink:label="gsm_QuebecSiliconGeneralPartnerMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_QuebecSiliconGeneralPartnerMember" xlink:to="gsm_QuebecSiliconGeneralPartnerMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_QuebecSiliconGeneralPartnerMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Quebec Silicon General Partner industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_QuebecSiliconGeneralPartnerMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Quebec Silicon General Partner [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_QuebecSiliconGeneralPartnerMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Quebec Silicon General Partner</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_QuebecSiliconLpMember" xlink:label="gsm_QuebecSiliconLpMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_QuebecSiliconLpMember" xlink:to="gsm_QuebecSiliconLpMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_QuebecSiliconLpMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Quebec Silicon L Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_QuebecSiliconLpMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Quebec Silicon Lp [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_QuebecSiliconLpMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Quebec Silicon LP</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TennesseeAlloysCompanyLlcMember" xlink:label="gsm_TennesseeAlloysCompanyLlcMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TennesseeAlloysCompanyLlcMember" xlink:to="gsm_TennesseeAlloysCompanyLlcMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TennesseeAlloysCompanyLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Tennessee Alloys Company, LL Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TennesseeAlloysCompanyLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tennessee Alloys Company Llc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_TennesseeAlloysCompanyLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tennessee Alloys Company, LLC</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_WestVirginiaAlloysInc.Member" xlink:label="gsm_WestVirginiaAlloysInc.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_WestVirginiaAlloysInc.Member" xlink:to="gsm_WestVirginiaAlloysInc.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_WestVirginiaAlloysInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the West Virginia Alloys, Inc Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_WestVirginiaAlloysInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">West Virginia Alloys Inc. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_WestVirginiaAlloysInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">West Virginia Alloys, Inc.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_WvaManufacturingLlcMember" xlink:label="gsm_WvaManufacturingLlcMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_WvaManufacturingLlcMember" xlink:to="gsm_WvaManufacturingLlcMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_WvaManufacturingLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for WVA Manufacturing, LLC (WVA).</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_WvaManufacturingLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Wva Manufacturing Llc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_WvaManufacturingLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">WVA Manufacturing, LLC</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CuarzosIndustrialesS.a.u.Member" xlink:label="gsm_CuarzosIndustrialesS.a.u.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CuarzosIndustrialesS.a.u.Member" xlink:to="gsm_CuarzosIndustrialesS.a.u.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CuarzosIndustrialesS.a.u.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Cuarzos Industriales, S.A.U Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CuarzosIndustrialesS.a.u.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cuarzos Industriales S.a.u. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_CuarzosIndustrialesS.a.u.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cuarzos Industriales, S.A.U.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroatlnticaCanadaCompanyLtdMember" xlink:label="gsm_FerroatlnticaCanadaCompanyLtdMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroatlnticaCanadaCompanyLtdMember" xlink:to="gsm_FerroatlnticaCanadaCompanyLtdMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroatlnticaCanadaCompanyLtdMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for FerroAtl&#xE1;ntica Canada Company Ltd industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerroatlnticaCanadaCompanyLtdMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroatlntica Canada Company Ltd [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroatlnticaCanadaCompanyLtdMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">FerroAtl&#xE1;ntica Canada Company Ltd</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroatlnticaDelCincaS.l.Member" xlink:label="gsm_FerroatlnticaDelCincaS.l.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroatlnticaDelCincaS.l.Member" xlink:to="gsm_FerroatlnticaDelCincaS.l.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroatlnticaDelCincaS.l.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Ferroatl&#xE1;ntica del Cinca, S.L. industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerroatlnticaDelCincaS.l.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroatlntica Del Cinca S.l. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroatlnticaDelCincaS.l.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroatl&#xE1;ntica del Cinca, S.L.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroglobeManganNorgeAsMember" xlink:label="gsm_FerroglobeManganNorgeAsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroglobeManganNorgeAsMember" xlink:to="gsm_FerroglobeManganNorgeAsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroglobeManganNorgeAsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Ferroglobe Mangan Norge AS industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerroglobeManganNorgeAsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroglobe Mangan Norge As [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroglobeManganNorgeAsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroglobe Mangan Norge AS</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroglobeManganeseFranceSasMember" xlink:label="gsm_FerroglobeManganeseFranceSasMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroglobeManganeseFranceSasMember" xlink:to="gsm_FerroglobeManganeseFranceSasMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroglobeManganeseFranceSasMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Ferroglobe Manganese France SAS industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerroglobeManganeseFranceSasMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroglobe Manganese France Sas [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroglobeManganeseFranceSasMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroglobe Manganese France SAS</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroatlanticaS.a.u.ElectrometallurgyMember" xlink:label="gsm_FerroatlanticaS.a.u.ElectrometallurgyMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroatlanticaS.a.u.ElectrometallurgyMember" xlink:to="gsm_FerroatlanticaS.a.u.ElectrometallurgyMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroatlanticaS.a.u.ElectrometallurgyMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Ferroatlantica, S.A.U. - Electrometallurg Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerroatlanticaS.a.u.ElectrometallurgyMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroatlantica S.a.u. Electrometallurgy [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroatlanticaS.a.u.ElectrometallurgyMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroatl&#xE1;ntica, S.A.U. - Electrometallurgy</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerropemS.a.s.Member" xlink:label="gsm_FerropemS.a.s.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerropemS.a.s.Member" xlink:to="gsm_FerropemS.a.s.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerropemS.a.s.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the FerroPem, S.A.S Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerropemS.a.s.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferropem S.a.s. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerropemS.a.s.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">FerroPem, S.A.S.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GrupoFerroatlanticaS.a.uMember" xlink:label="gsm_GrupoFerroatlanticaS.a.uMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GrupoFerroatlanticaS.a.uMember" xlink:to="gsm_GrupoFerroatlanticaS.a.uMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GrupoFerroatlanticaS.a.uMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Grupo FerroAtlantica, S.A. Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GrupoFerroatlanticaS.a.uMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grupo Ferroatlantica S.a.u [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GrupoFerroatlanticaS.a.uMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grupo FerroAtlantica, S.A.U</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IslenskaKisilfelagioEhfIcelandicSiliconCorp.Member" xlink:label="gsm_IslenskaKisilfelagioEhfIcelandicSiliconCorp.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IslenskaKisilfelagioEhfIcelandicSiliconCorp.Member" xlink:to="gsm_IslenskaKisilfelagioEhfIcelandicSiliconCorp.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IslenskaKisilfelagioEhfIcelandicSiliconCorp.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Islenska Kisilfelagio EHF (Icelandic Silicon Corp.) industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IslenskaKisilfelagioEhfIcelandicSiliconCorp.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Islenska Kisilfelagio Ehf Icelandic Silicon Corp. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IslenskaKisilfelagioEhfIcelandicSiliconCorp.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Islenska Kisilfelagio EHF (Icelandic Silicon Corp.)</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_KintuckFranceSasMember" xlink:label="gsm_KintuckFranceSasMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_KintuckFranceSasMember" xlink:to="gsm_KintuckFranceSasMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_KintuckFranceSasMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Kintuck (France) SAS industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_KintuckFranceSasMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Kintuck France Sas [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_KintuckFranceSasMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Kintuck (France) SAS</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_KintuckAsMember" xlink:label="gsm_KintuckAsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_KintuckAsMember" xlink:to="gsm_KintuckAsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_KintuckAsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Kintuck AS industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_KintuckAsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Kintuck As [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_KintuckAsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Kintuck AS</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_RocasArcillasYMineralesS.a.Member" xlink:label="gsm_RocasArcillasYMineralesS.a.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_RocasArcillasYMineralesS.a.Member" xlink:to="gsm_RocasArcillasYMineralesS.a.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_RocasArcillasYMineralesS.a.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Rocas, Arcillas y Minerales, S.A Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_RocasArcillasYMineralesS.a.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Rocas Arcillas Y Minerales S.a. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_RocasArcillasYMineralesS.a.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Rocas, Arcillas y Minerales, S.A.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ReboneMiningPty.Ltd.Member" xlink:label="gsm_ReboneMiningPty.Ltd.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ReboneMiningPty.Ltd.Member" xlink:to="gsm_ReboneMiningPty.Ltd.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ReboneMiningPty.Ltd.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Rebone Mining (Pty.), Ltd Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ReboneMiningPty.Ltd.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Rebone Mining Pty. Ltd. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ReboneMiningPty.Ltd.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Rebone Mining (Pty.), Ltd.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_SiliconSmeltersPty.Ltd.Member" xlink:label="gsm_SiliconSmeltersPty.Ltd.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_SiliconSmeltersPty.Ltd.Member" xlink:to="gsm_SiliconSmeltersPty.Ltd.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_SiliconSmeltersPty.Ltd.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Silicon Smelters (Pty.), Ltd Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_SiliconSmeltersPty.Ltd.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Silicon Smelters Pty. Ltd. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_SiliconSmeltersPty.Ltd.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Silicon Smelters (Pty.), Ltd.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_SiliconTechnologyPty.Ltd.Member" xlink:label="gsm_SiliconTechnologyPty.Ltd.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_SiliconTechnologyPty.Ltd.Member" xlink:to="gsm_SiliconTechnologyPty.Ltd.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_SiliconTechnologyPty.Ltd.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Silicon Technology (Pty.), Ltd Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_SiliconTechnologyPty.Ltd.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Silicon Technology Pty. Ltd. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_SiliconTechnologyPty.Ltd.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Silicon Technology (Pty.), Ltd.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ThabaChueuMiningPty.Ltd.Member" xlink:label="gsm_ThabaChueuMiningPty.Ltd.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ThabaChueuMiningPty.Ltd.Member" xlink:to="gsm_ThabaChueuMiningPty.Ltd.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ThabaChueuMiningPty.Ltd.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Thaba Chueu Mining (Pty.), Ltd Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ThabaChueuMiningPty.Ltd.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Thaba Chueu Mining Pty. Ltd. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ThabaChueuMiningPty.Ltd.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Thaba Chueu Mining (Pty.), Ltd.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FrontStreetLlcMember" xlink:label="gsm_FrontStreetLlcMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FrontStreetLlcMember" xlink:to="gsm_FrontStreetLlcMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FrontStreetLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for 16 Front Street, LLC industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FrontStreetLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Front Street Llc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FrontStreetLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">16 Front Street, LLC</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CuarzosIndustrialesDeVenezuelaCuarzovenS.a.Member" xlink:label="gsm_CuarzosIndustrialesDeVenezuelaCuarzovenS.a.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CuarzosIndustrialesDeVenezuelaCuarzovenS.a.Member" xlink:to="gsm_CuarzosIndustrialesDeVenezuelaCuarzovenS.a.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CuarzosIndustrialesDeVenezuelaCuarzovenS.a.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Cuarzos Industriales de Venezuela (Cuarzoven), S.A Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CuarzosIndustrialesDeVenezuelaCuarzovenS.a.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cuarzos Industriales De Venezuela Cuarzoven S.a. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_CuarzosIndustrialesDeVenezuelaCuarzovenS.a.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cuarzos Industriales de Venezuela (Cuarzoven), S.A.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroatlanticaDeVenezuelaFerrovenS.a.Member" xlink:label="gsm_FerroatlanticaDeVenezuelaFerrovenS.a.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroatlanticaDeVenezuelaFerrovenS.a.Member" xlink:to="gsm_FerroatlanticaDeVenezuelaFerrovenS.a.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroatlanticaDeVenezuelaFerrovenS.a.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Ferroatlantica de Venezuela (FerroVen), S.A Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerroatlanticaDeVenezuelaFerrovenS.a.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroatlantica De Venezuela Ferroven S.a. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroatlanticaDeVenezuelaFerrovenS.a.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroatlantica de Venezuela (FerroVen), S.A.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ActifsSolairesBecancourIncMember" xlink:label="gsm_ActifsSolairesBecancourIncMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ActifsSolairesBecancourIncMember" xlink:to="gsm_ActifsSolairesBecancourIncMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ActifsSolairesBecancourIncMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Actifs Solaires Becancour, In Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ActifsSolairesBecancourIncMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Actifs Solaires Becancour Inc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ActifsSolairesBecancourIncMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Actifs Solaires Becancour, Inc</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_EmixS.a.s.Member" xlink:label="gsm_EmixS.a.s.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_EmixS.a.s.Member" xlink:to="gsm_EmixS.a.s.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_EmixS.a.s.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Emix, S.A.S Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_EmixS.a.s.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Emix S.a.s. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_EmixS.a.s.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Emix, S.A.S.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_EcpiInc.Member" xlink:label="gsm_EcpiInc.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_EcpiInc.Member" xlink:to="gsm_EcpiInc.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_EcpiInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for ECPI, Inc. industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_EcpiInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ecpi Inc. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_EcpiInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">ECPI, Inc.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroatlanticaBrasilMineracaoLtda.Member" xlink:label="gsm_FerroatlanticaBrasilMineracaoLtda.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroatlanticaBrasilMineracaoLtda.Member" xlink:to="gsm_FerroatlanticaBrasilMineracaoLtda.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroatlanticaBrasilMineracaoLtda.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Ferroatlantica Brasil Mineracao Ltda Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerroatlanticaBrasilMineracaoLtda.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroatlantica Brasil Mineracao Ltda. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroatlanticaBrasilMineracaoLtda.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroatlantica Brasil Mineracao Ltda.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroatlanticaDeMexicoS.a.DeC.v.Member" xlink:label="gsm_FerroatlanticaDeMexicoS.a.DeC.v.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroatlanticaDeMexicoS.a.DeC.v.Member" xlink:to="gsm_FerroatlanticaDeMexicoS.a.DeC.v.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroatlanticaDeMexicoS.a.DeC.v.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Ferroatlantica de Mexico, S.A. de C.V Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerroatlanticaDeMexicoS.a.DeC.v.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroatlantica De Mexico S.a. De C.v. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroatlanticaDeMexicoS.a.DeC.v.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroatlantica de Mexico, S.A. de C.V.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroatlanticaDeutschlandGmbhMember" xlink:label="gsm_FerroatlanticaDeutschlandGmbhMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroatlanticaDeutschlandGmbhMember" xlink:to="gsm_FerroatlanticaDeutschlandGmbhMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroatlanticaDeutschlandGmbhMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Ferroatlantica Deutschland, Gmb Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerroatlanticaDeutschlandGmbhMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroatlantica Deutschland Gmbh [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroatlanticaDeutschlandGmbhMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroatlantica Deutschland, GmbH</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroatlanticaIDS.l.u.Member" xlink:label="gsm_FerroatlanticaIDS.l.u.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroatlanticaIDS.l.u.Member" xlink:to="gsm_FerroatlanticaIDS.l.u.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroatlanticaIDS.l.u.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Ferroatl&#xE1;ntica I+D, S.L.U Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerroatlanticaIDS.l.u.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroatlantica I D S.l.u. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroatlanticaIDS.l.u.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroatlantica I+D, S.L.U.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroatlanticaIndiaPrivateLimitedMember" xlink:label="gsm_FerroatlanticaIndiaPrivateLimitedMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroatlanticaIndiaPrivateLimitedMember" xlink:to="gsm_FerroatlanticaIndiaPrivateLimitedMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroatlanticaIndiaPrivateLimitedMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the FerroAtlantica India Private Limite Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerroatlanticaIndiaPrivateLimitedMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroatlantica India Private Limited [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroatlanticaIndiaPrivateLimitedMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">FerroAtlantica India Private Limited</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroatlanticaYCia.F.DeFerroaleac.YMetalesS.c.Member" xlink:label="gsm_FerroatlanticaYCia.F.DeFerroaleac.YMetalesS.c.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroatlanticaYCia.F.DeFerroaleac.YMetalesS.c.Member" xlink:to="gsm_FerroatlanticaYCia.F.DeFerroaleac.YMetalesS.c.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroatlanticaYCia.F.DeFerroaleac.YMetalesS.c.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Ferroatlantica y C&#xED;a., F. de Ferroaleac. y Metales, S.C Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerroatlanticaYCia.F.DeFerroaleac.YMetalesS.c.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroatlantica Y Cia. F. De Ferroaleac. Y Metales S.c. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroatlanticaYCia.F.DeFerroaleac.YMetalesS.c.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroatlantica y Cia., F. de Ferroaleac. y Metales, S.C.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroatlanticaS.a.u.OtherSegmentsEnergyMember" xlink:label="gsm_FerroatlanticaS.a.u.OtherSegmentsEnergyMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroatlanticaS.a.u.OtherSegmentsEnergyMember" xlink:to="gsm_FerroatlanticaS.a.u.OtherSegmentsEnergyMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroatlanticaS.a.u.OtherSegmentsEnergyMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Ferroatlantica, S.A.U. - Other segments - Energ Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerroatlanticaS.a.u.OtherSegmentsEnergyMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroatlantica S.a.u. Other Segments Energy [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroatlanticaS.a.u.OtherSegmentsEnergyMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroatlantica, S.A.U. - Other segments - Energy</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroatlanticaInternationalLtdMember" xlink:label="gsm_FerroatlanticaInternationalLtdMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroatlanticaInternationalLtdMember" xlink:to="gsm_FerroatlanticaInternationalLtdMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroatlanticaInternationalLtdMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the FerroAtlantica International Lt Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerroatlanticaInternationalLtdMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroatlantica International Ltd [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroatlanticaInternationalLtdMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">FerroAtlantica International Ltd</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroglobeServicesUkPlcMember" xlink:label="gsm_FerroglobeServicesUkPlcMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroglobeServicesUkPlcMember" xlink:to="gsm_FerroglobeServicesUkPlcMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroglobeServicesUkPlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Ferroglobe Services (UK) PLC industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerroglobeServicesUkPlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroglobe Services Uk Plc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroglobeServicesUkPlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroglobe Services (UK) PLC</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerromanganeseMauritaniaSarlMember" xlink:label="gsm_FerromanganeseMauritaniaSarlMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerromanganeseMauritaniaSarlMember" xlink:to="gsm_FerromanganeseMauritaniaSarlMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerromanganeseMauritaniaSarlMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the FerroManganese Mauritania SAR Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerromanganeseMauritaniaSarlMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferromanganese Mauritania Sarl [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerromanganeseMauritaniaSarlMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">FerroManganese Mauritania SARL</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroquartzCompanyLtdMember" xlink:label="gsm_FerroquartzCompanyLtdMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroquartzCompanyLtdMember" xlink:to="gsm_FerroquartzCompanyLtdMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroquartzCompanyLtdMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Ferroquartz Company Lt Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerroquartzCompanyLtdMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroquartz Company Ltd [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroquartzCompanyLtdMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroquartz Company Ltd</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroquartzHoldingsLtdHongKongMember" xlink:label="gsm_FerroquartzHoldingsLtdHongKongMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroquartzHoldingsLtdHongKongMember" xlink:to="gsm_FerroquartzHoldingsLtdHongKongMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroquartzHoldingsLtdHongKongMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Ferroquartz Holdings, Ltd (Hong Kong) industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerroquartzHoldingsLtdHongKongMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroquartz Holdings Ltd Hong Kong [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroquartzHoldingsLtdHongKongMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroquartz Holdings, Ltd (Hong Kong)</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroquartzMauritaniaSarlMember" xlink:label="gsm_FerroquartzMauritaniaSarlMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroquartzMauritaniaSarlMember" xlink:to="gsm_FerroquartzMauritaniaSarlMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroquartzMauritaniaSarlMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the FerroQuartz Mauritania SAR Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerroquartzMauritaniaSarlMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroquartz Mauritania Sarl [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroquartzMauritaniaSarlMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">FerroQuartz Mauritania SARL</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroquebecInc.Member" xlink:label="gsm_FerroquebecInc.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroquebecInc.Member" xlink:to="gsm_FerroquebecInc.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroquebecInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the FerroQuebec, Inc Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerroquebecInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroquebec Inc. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroquebecInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">FerroQuebec, Inc.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerrotambaoSarlMember" xlink:label="gsm_FerrotambaoSarlMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerrotambaoSarlMember" xlink:to="gsm_FerrotambaoSarlMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerrotambaoSarlMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the FerroTambao, SAR Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerrotambaoSarlMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferrotambao Sarl [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerrotambaoSarlMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">FerroTambao, SARL</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerrosolarOpcoGroupSl.Member" xlink:label="gsm_FerrosolarOpcoGroupSl.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerrosolarOpcoGroupSl.Member" xlink:to="gsm_FerrosolarOpcoGroupSl.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerrosolarOpcoGroupSl.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Ferrosolar OPCO Group SL Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerrosolarOpcoGroupSl.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferrosolar Opco Group Sl. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerrosolarOpcoGroupSl.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferrosolar OPCO Group SL.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerrosolarRDSl.Member" xlink:label="gsm_FerrosolarRDSl.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerrosolarRDSl.Member" xlink:to="gsm_FerrosolarRDSl.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerrosolarRDSl.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Ferrosolar R&amp;amp;D SL Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerrosolarRDSl.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferrosolar R D Sl. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerrosolarRDSl.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferrosolar R&amp;D SL.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GanziFerroatlanticaSiliconIndustryCompanyLtdMember" xlink:label="gsm_GanziFerroatlanticaSiliconIndustryCompanyLtdMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GanziFerroatlanticaSiliconIndustryCompanyLtdMember" xlink:to="gsm_GanziFerroatlanticaSiliconIndustryCompanyLtdMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GanziFerroatlanticaSiliconIndustryCompanyLtdMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Ganzi Ferroatlantica Silicon Industry Company, Ltd. subsidiary.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GanziFerroatlanticaSiliconIndustryCompanyLtdMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ganzi Ferroatlantica Silicon Industry Company Ltd [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GanziFerroatlanticaSiliconIndustryCompanyLtdMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ganzi Ferroatlantica Silicon Industry Company Ltd</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GbgFinancialLlcMember" xlink:label="gsm_GbgFinancialLlcMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GbgFinancialLlcMember" xlink:to="gsm_GbgFinancialLlcMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GbgFinancialLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for GBG Financial LLC industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GbgFinancialLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gbg Financial Llc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GbgFinancialLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">GBG Financial LLC</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GlobeArgentinaHoldcoLlcMember" xlink:label="gsm_GlobeArgentinaHoldcoLlcMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GlobeArgentinaHoldcoLlcMember" xlink:to="gsm_GlobeArgentinaHoldcoLlcMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GlobeArgentinaHoldcoLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stand for Globe Argentina Holdco, LLC industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GlobeArgentinaHoldcoLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Globe Argentina Holdco Llc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GlobeArgentinaHoldcoLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Globe Argentina Holdco, LLC</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GlobeBgLlcMember" xlink:label="gsm_GlobeBgLlcMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GlobeBgLlcMember" xlink:to="gsm_GlobeBgLlcMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GlobeBgLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Globe BG, LLC industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GlobeBgLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Globe Bg Llc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GlobeBgLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Globe BG, LLC</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GlobeLseInc.Member" xlink:label="gsm_GlobeLseInc.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GlobeLseInc.Member" xlink:to="gsm_GlobeLseInc.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GlobeLseInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Globe LSE, Inc. industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GlobeLseInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Globe Lse Inc. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GlobeLseInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Globe LSE, Inc.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GlobeMetalesS.r.l.Member" xlink:label="gsm_GlobeMetalesS.r.l.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GlobeMetalesS.r.l.Member" xlink:to="gsm_GlobeMetalesS.r.l.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GlobeMetalesS.r.l.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Globe Metales S.R.L. industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GlobeMetalesS.r.l.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Globe Metales S.r.l. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GlobeMetalesS.r.l.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Globe Metales S.R.L.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GlobeMetallurgicalCarbonLlcMember" xlink:label="gsm_GlobeMetallurgicalCarbonLlcMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GlobeMetallurgicalCarbonLlcMember" xlink:to="gsm_GlobeMetallurgicalCarbonLlcMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GlobeMetallurgicalCarbonLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Globe Metallurgical Carbon, LLC industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GlobeMetallurgicalCarbonLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Globe Metallurgical Carbon Llc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GlobeMetallurgicalCarbonLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Globe Metallurgical Carbon, LLC</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GlobeSpecialtyMetalsInc.Member" xlink:label="gsm_GlobeSpecialtyMetalsInc.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GlobeSpecialtyMetalsInc.Member" xlink:to="gsm_GlobeSpecialtyMetalsInc.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GlobeSpecialtyMetalsInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Globe Specialty Metals, Inc Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GlobeSpecialtyMetalsInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Globe Specialty Metals Inc. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GlobeSpecialtyMetalsInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Globe Specialty Metals, Inc.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GsmFinancialInc.Member" xlink:label="gsm_GsmFinancialInc.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GsmFinancialInc.Member" xlink:to="gsm_GsmFinancialInc.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GsmFinancialInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for GSM Financial, Inc. industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GsmFinancialInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gsm Financial Inc. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GsmFinancialInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">GSM Financial, Inc.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GsmNetherlandsBvMember" xlink:label="gsm_GsmNetherlandsBvMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GsmNetherlandsBvMember" xlink:to="gsm_GsmNetherlandsBvMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GsmNetherlandsBvMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for GSM Netherlands, BV industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GsmNetherlandsBvMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gsm Netherlands Bv [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GsmNetherlandsBvMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">GSM Netherlands, BV</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_LaurelFordResourcesInc.Member" xlink:label="gsm_LaurelFordResourcesInc.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_LaurelFordResourcesInc.Member" xlink:to="gsm_LaurelFordResourcesInc.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_LaurelFordResourcesInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Laurel Ford Resources, Inc. industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_LaurelFordResourcesInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Laurel Ford Resources Inc. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_LaurelFordResourcesInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Laurel Ford Resources, Inc.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_MstFinancialHoldingsLlcMember" xlink:label="gsm_MstFinancialHoldingsLlcMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_MstFinancialHoldingsLlcMember" xlink:to="gsm_MstFinancialHoldingsLlcMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_MstFinancialHoldingsLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for MST Financial Holdings, LLC industy company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_MstFinancialHoldingsLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Mst Financial Holdings Llc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_MstFinancialHoldingsLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">MST Financial Holdings, LLC</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_MstFinancialLlcMember" xlink:label="gsm_MstFinancialLlcMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_MstFinancialLlcMember" xlink:to="gsm_MstFinancialLlcMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_MstFinancialLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for MST Financial, LLC industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_MstFinancialLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Mst Financial Llc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_MstFinancialLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">MST Financial, LLC</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_MstResourcesLlcMember" xlink:label="gsm_MstResourcesLlcMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_MstResourcesLlcMember" xlink:to="gsm_MstResourcesLlcMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_MstResourcesLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for MST Resources, LLC industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_MstResourcesLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Mst Resources Llc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_MstResourcesLlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">MST Resources, LLC</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NingxiaYonveyCoalIndustrialCo.Ltd.Member" xlink:label="gsm_NingxiaYonveyCoalIndustrialCo.Ltd.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NingxiaYonveyCoalIndustrialCo.Ltd.Member" xlink:to="gsm_NingxiaYonveyCoalIndustrialCo.Ltd.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NingxiaYonveyCoalIndustrialCo.Ltd.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Ningxia Yonvey Coal Industrial Co., Ltd. industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NingxiaYonveyCoalIndustrialCo.Ltd.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ningxia Yonvey Coal Industrial Co. Ltd. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NingxiaYonveyCoalIndustrialCo.Ltd.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ningxia Yonvey Coal Industrial Co., Ltd.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PhotosilIndustriesSasMember" xlink:label="gsm_PhotosilIndustriesSasMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PhotosilIndustriesSasMember" xlink:to="gsm_PhotosilIndustriesSasMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PhotosilIndustriesSasMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Photosil Industries, SAS industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PhotosilIndustriesSasMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Photosil Industries Sas [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PhotosilIndustriesSasMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Photosil Industries, SAS</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_SilicioFerrosolarSluMember" xlink:label="gsm_SilicioFerrosolarSluMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_SilicioFerrosolarSluMember" xlink:to="gsm_SilicioFerrosolarSluMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_SilicioFerrosolarSluMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Silicio Ferrosolar, SLU industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_SilicioFerrosolarSluMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Silicio Ferrosolar Slu [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_SilicioFerrosolarSluMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Silicio Ferrosolar, SLU</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_SolsilInc.Member" xlink:label="gsm_SolsilInc.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_SolsilInc.Member" xlink:to="gsm_SolsilInc.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_SolsilInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Solsil, Inc. industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_SolsilInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Solsil Inc. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_SolsilInc.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Solsil, Inc.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_UltraCorePolskaUcpMember" xlink:label="gsm_UltraCorePolskaUcpMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_UltraCorePolskaUcpMember" xlink:to="gsm_UltraCorePolskaUcpMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_UltraCorePolskaUcpMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Ultra Core Polska (UCP) industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_UltraCorePolskaUcpMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ultra Core Polska Ucp [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_UltraCorePolskaUcpMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ultra Core Polska (UCP)</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_UltracoreEnergySaMember" xlink:label="gsm_UltracoreEnergySaMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_UltracoreEnergySaMember" xlink:to="gsm_UltracoreEnergySaMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_UltracoreEnergySaMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Ultracore Energy SA industry company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_UltracoreEnergySaMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ultracore Energy Sa [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_UltracoreEnergySaMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ultracore Energy SA</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_MangshiFerroatlanticaMiningIndustryServiceCompanyltdMember" xlink:label="gsm_MangshiFerroatlanticaMiningIndustryServiceCompanyltdMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_MangshiFerroatlanticaMiningIndustryServiceCompanyltdMember" xlink:to="gsm_MangshiFerroatlanticaMiningIndustryServiceCompanyltdMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_MangshiFerroatlanticaMiningIndustryServiceCompanyltdMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Mangshi FerroAtlantica Mining Industry Service CompanyLt Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_MangshiFerroatlanticaMiningIndustryServiceCompanyltdMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Mangshi Ferroatlantica Mining Industry Service Companyltd [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_MangshiFerroatlanticaMiningIndustryServiceCompanyltdMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Mangshi FerroAtlantica Mining Industry Service CompanyLtd</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_MangshiSiniceSiliconIndustryCompanyLimitedMember" xlink:label="gsm_MangshiSiniceSiliconIndustryCompanyLimitedMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_MangshiSiniceSiliconIndustryCompanyLimitedMember" xlink:to="gsm_MangshiSiniceSiliconIndustryCompanyLimitedMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_MangshiSiniceSiliconIndustryCompanyLimitedMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the MangShi Sinice Silicon Industry Company Limited Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_MangshiSiniceSiliconIndustryCompanyLimitedMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Mangshi Sinice Silicon Industry Company Limited [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_MangshiSiniceSiliconIndustryCompanyLimitedMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">MangShi Sinice Silicon Industry Company Limited</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_SegmentsAxis" xlink:label="ifrs-full_SegmentsAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_SegmentsAxis" xlink:to="ifrs-full_SegmentsAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_SegmentsAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Segments [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_SegmentsMember" xlink:label="ifrs-full_SegmentsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_SegmentsMember" xlink:to="ifrs-full_SegmentsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_SegmentsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Segments [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_SegmentsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Segments [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ElectrometallurgyNorthAmericaSegmentMember" xlink:label="gsm_ElectrometallurgyNorthAmericaSegmentMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ElectrometallurgyNorthAmericaSegmentMember" xlink:to="gsm_ElectrometallurgyNorthAmericaSegmentMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ElectrometallurgyNorthAmericaSegmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Electrometallurgy - North America operating segment.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ElectrometallurgyNorthAmericaSegmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Electrometallurgy North America Segment [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ElectrometallurgyNorthAmericaSegmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Electrometallurgy - North America</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ElectrometallurgyEuropeSegmentMember" xlink:label="gsm_ElectrometallurgyEuropeSegmentMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ElectrometallurgyEuropeSegmentMember" xlink:to="gsm_ElectrometallurgyEuropeSegmentMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ElectrometallurgyEuropeSegmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Electrometallurgy - Europe operating segment.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ElectrometallurgyEuropeSegmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Electrometallurgy Europe Segment [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ElectrometallurgyEuropeSegmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Electrometallurgy - Europe</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ElectrometallurgySouthAfricaSegmentMember" xlink:label="gsm_ElectrometallurgySouthAfricaSegmentMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ElectrometallurgySouthAfricaSegmentMember" xlink:to="gsm_ElectrometallurgySouthAfricaSegmentMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ElectrometallurgySouthAfricaSegmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Electrometallurgy - South Africa operating segment.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ElectrometallurgySouthAfricaSegmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Electrometallurgy South Africa Segment [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ElectrometallurgySouthAfricaSegmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Electrometallurgy - South Africa</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AllOtherSegmentsMember" xlink:label="ifrs-full_AllOtherSegmentsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AllOtherSegmentsMember" xlink:to="ifrs-full_AllOtherSegmentsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AllOtherSegmentsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">All Other Segments [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AllOtherSegmentsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other segments</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems" xlink:label="ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems" xlink:to="ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of subsidiaries [line items]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ProportionOfDirectOwnershipInterestInSubsidiary" xlink:label="gsm_ProportionOfDirectOwnershipInterestInSubsidiary" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ProportionOfDirectOwnershipInterestInSubsidiary" xlink:to="gsm_ProportionOfDirectOwnershipInterestInSubsidiary_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ProportionOfDirectOwnershipInterestInSubsidiary_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The proportion of direct ownership interest in a subsidiary attributable to the entity.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ProportionOfDirectOwnershipInterestInSubsidiary_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Proportion of Direct Ownership Interest in Subsidiary</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ProportionOfDirectOwnershipInterestInSubsidiary_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Proportion of ownership interest in subsidiary - Direct</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xlink:label="ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProportionOfOwnershipInterestInSubsidiary" xlink:to="ifrs-full_ProportionOfOwnershipInterestInSubsidiary_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProportionOfOwnershipInterestInSubsidiary_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Proportion of ownership interest in subsidiary</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsTable" xlink:label="ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsTable" xlink:to="ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsTable</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsLineItems" xlink:label="ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsLineItems" xlink:to="ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretationsLineItems</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LeaseLiabilities" xlink:label="ifrs-full_LeaseLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LeaseLiabilities" xlink:to="ifrs-full_LeaseLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LeaseLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Lease liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LeaseLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Obligations under finance leases</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_LeaseLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Lease liabilities</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_OperatingLeaseExpectedDecreaseOtherOperatingExpenses" xlink:label="gsm_OperatingLeaseExpectedDecreaseOtherOperatingExpenses" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_OperatingLeaseExpectedDecreaseOtherOperatingExpenses" xlink:to="gsm_OperatingLeaseExpectedDecreaseOtherOperatingExpenses_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_OperatingLeaseExpectedDecreaseOtherOperatingExpenses_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Expected amount of decrease in other operating expenses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_OperatingLeaseExpectedDecreaseOtherOperatingExpenses_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Operating Lease, Expected Decrease, Other Operating Expenses</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_OperatingLeaseExpectedDecreaseOtherOperatingExpenses_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount of expected decrease in other operating expenses</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_OperatingLeasesExpectedAmountIncreaseInDepreciationExpense" xlink:label="gsm_OperatingLeasesExpectedAmountIncreaseInDepreciationExpense" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_OperatingLeasesExpectedAmountIncreaseInDepreciationExpense" xlink:to="gsm_OperatingLeasesExpectedAmountIncreaseInDepreciationExpense_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_OperatingLeasesExpectedAmountIncreaseInDepreciationExpense_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount of expected increase in the depreciation expense.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_OperatingLeasesExpectedAmountIncreaseInDepreciationExpense_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Operating Leases, Expected Amount, Increase in Depreciation Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_OperatingLeasesExpectedAmountIncreaseInDepreciationExpense_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount of expected increase in depreciation expense</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_OperatingLeasesExpectedAmountIncreaseInFinanceCosts" xlink:label="gsm_OperatingLeasesExpectedAmountIncreaseInFinanceCosts" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_OperatingLeasesExpectedAmountIncreaseInFinanceCosts" xlink:to="gsm_OperatingLeasesExpectedAmountIncreaseInFinanceCosts_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_OperatingLeasesExpectedAmountIncreaseInFinanceCosts_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount of expected increase in the finance costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_OperatingLeasesExpectedAmountIncreaseInFinanceCosts_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Operating Leases, Expected Amount, Increase in Finance Costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_OperatingLeasesExpectedAmountIncreaseInFinanceCosts_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount of expected increase in finance costs</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NotionalAmount" xlink:label="ifrs-full_NotionalAmount" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NotionalAmount" xlink:to="ifrs-full_NotionalAmount_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NotionalAmount_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Notional amount</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:label="ifrs-full_NotionalAmount_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Nominal Amount</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_NotionalAmount_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Principal amount</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_BorrowingsInterestRate" xlink:label="ifrs-full_BorrowingsInterestRate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BorrowingsInterestRate" xlink:to="ifrs-full_BorrowingsInterestRate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BorrowingsInterestRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Borrowings, interest rate</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:label="ifrs-full_BorrowingsInterestRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Fixed Interest Rate</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_BorrowingsInterestRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Average interest rate</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_BorrowingsInterestRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest rate (as a percent)</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DebtInstrumentRedemptionPricePercentageAtChangeInControl" xlink:label="gsm_DebtInstrumentRedemptionPricePercentageAtChangeInControl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DebtInstrumentRedemptionPricePercentageAtChangeInControl" xlink:to="gsm_DebtInstrumentRedemptionPricePercentageAtChangeInControl_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DebtInstrumentRedemptionPricePercentageAtChangeInControl_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage price of original principal amount of debt at which the debt is required to be redeemed in the event of a change in control.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DebtInstrumentRedemptionPricePercentageAtChangeInControl_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Debt Instrument Redemption Price Percentage At Change In Control</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DebtInstrumentRedemptionPricePercentageAtChangeInControl_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Redemption price of notes at change of control</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PercentageOfOutstandingSharesOwned" xlink:label="gsm_PercentageOfOutstandingSharesOwned" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PercentageOfOutstandingSharesOwned" xlink:to="gsm_PercentageOfOutstandingSharesOwned_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PercentageOfOutstandingSharesOwned_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The percentage of outstanding shares owned by main shareholders.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PercentageOfOutstandingSharesOwned_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage Of Outstanding Shares Owned</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PercentageOfOutstandingSharesOwned_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Outstanding shares owned by main shareholders (as a percentage)</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PercentageOfOwnershipInterestHeldByRelatedParty" xlink:label="gsm_PercentageOfOwnershipInterestHeldByRelatedParty" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PercentageOfOwnershipInterestHeldByRelatedParty" xlink:to="gsm_PercentageOfOwnershipInterestHeldByRelatedParty_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PercentageOfOwnershipInterestHeldByRelatedParty_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The percentage of ownership interest held by related party.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PercentageOfOwnershipInterestHeldByRelatedParty_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of ownership interest held by related party</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PercentageOfOwnershipInterestHeldByRelatedParty_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ownership interest as a percentage</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfInitialApplicationOfStandardsOrInterpretationsTable" xlink:label="ifrs-full_DisclosureOfInitialApplicationOfStandardsOrInterpretationsTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfInitialApplicationOfStandardsOrInterpretationsTable" xlink:to="ifrs-full_DisclosureOfInitialApplicationOfStandardsOrInterpretationsTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfInitialApplicationOfStandardsOrInterpretationsTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of initial application of standards or interpretations [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:label="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis" xlink:to="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Classes of property, plant and equipment [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_PropertyPlantAndEquipmentMember" xlink:label="ifrs-full_PropertyPlantAndEquipmentMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PropertyPlantAndEquipmentMember" xlink:to="ifrs-full_PropertyPlantAndEquipmentMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PropertyPlantAndEquipmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Property Plant And Equipment [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_PropertyPlantAndEquipmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Property, plant &amp; equipment</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PropertiesForOwnUseMember" xlink:label="gsm_PropertiesForOwnUseMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PropertiesForOwnUseMember" xlink:to="gsm_PropertiesForOwnUseMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PropertiesForOwnUseMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for properties for the entity's own use.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PropertiesForOwnUseMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Properties For Own Use [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PropertiesForOwnUseMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Properties for own use</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PlantAndMachineryMember" xlink:label="gsm_PlantAndMachineryMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PlantAndMachineryMember" xlink:to="gsm_PlantAndMachineryMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PlantAndMachineryMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the entity's plant and machinery.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PlantAndMachineryMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Plant And Machinery [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PlantAndMachineryMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Plant and machinery</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ToolsMember" xlink:label="gsm_ToolsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ToolsMember" xlink:to="gsm_ToolsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ToolsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the entity's tools.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ToolsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tools [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ToolsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tools</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsFurnitureAndFixturesMember" xlink:label="gsm_IfrsFurnitureAndFixturesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsFurnitureAndFixturesMember" xlink:to="gsm_IfrsFurnitureAndFixturesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsFurnitureAndFixturesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the entity's furniture and fixtures.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsFurnitureAndFixturesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs Furniture And Fixtures [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsFurnitureAndFixturesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Furniture and fixtures</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ComputerEquipmentMember" xlink:label="ifrs-full_ComputerEquipmentMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ComputerEquipmentMember" xlink:to="ifrs-full_ComputerEquipmentMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ComputerEquipmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Computer Equipment [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ComputerEquipmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Computer hardware</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_VehiclesMember" xlink:label="ifrs-full_VehiclesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_VehiclesMember" xlink:to="ifrs-full_VehiclesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_VehiclesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Vehicles [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_VehiclesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Transport equipment</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis" xlink:label="ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis" xlink:to="ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfIntangibleAssetsOtherThanGoodwillAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Classes of intangible assets other than goodwill [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IntangibleAssetsOtherThanGoodwillMember" xlink:label="ifrs-full_IntangibleAssetsOtherThanGoodwillMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IntangibleAssetsOtherThanGoodwillMember" xlink:to="ifrs-full_IntangibleAssetsOtherThanGoodwillMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IntangibleAssetsOtherThanGoodwillMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Intangible Assets Other Than Goodwill [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IntangibleAssetsOtherThanGoodwillMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Intangible assets other than goodwill [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CapitalisedDevelopmentExpenditureMember" xlink:label="ifrs-full_CapitalisedDevelopmentExpenditureMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CapitalisedDevelopmentExpenditureMember" xlink:to="ifrs-full_CapitalisedDevelopmentExpenditureMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CapitalisedDevelopmentExpenditureMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Capitalised Development Expenditure [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CapitalisedDevelopmentExpenditureMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Capitalised development expenditure</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IFRSContractualRightsMember" xlink:label="gsm_IFRSContractualRightsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IFRSContractualRightsMember" xlink:to="gsm_IFRSContractualRightsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IFRSContractualRightsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Rights that arise from a contractual arrangement with a third party.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IFRSContractualRightsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">I F R S Contractual Rights [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IFRSContractualRightsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Rights of use</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ComputerSoftwareMember" xlink:label="ifrs-full_ComputerSoftwareMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ComputerSoftwareMember" xlink:to="ifrs-full_ComputerSoftwareMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ComputerSoftwareMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Computer Software [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ComputerSoftwareMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Computer software</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_RangeAxis" xlink:label="ifrs-full_RangeAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RangeAxis" xlink:to="ifrs-full_RangeAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RangeAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Range [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_RangesMember" xlink:label="ifrs-full_RangesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RangesMember" xlink:to="ifrs-full_RangesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RangesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ranges [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_RangesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ranges [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TopOfRangeMember" xlink:label="ifrs-full_TopOfRangeMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TopOfRangeMember" xlink:to="ifrs-full_TopOfRangeMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TopOfRangeMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Top Of Range [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TopOfRangeMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Maximum</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_BottomOfRangeMember" xlink:label="ifrs-full_BottomOfRangeMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BottomOfRangeMember" xlink:to="ifrs-full_BottomOfRangeMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BottomOfRangeMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Bottom Of Range [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_BottomOfRangeMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Minimum</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfInitialApplicationOfStandardsOrInterpretationsLineItems" xlink:label="ifrs-full_DisclosureOfInitialApplicationOfStandardsOrInterpretationsLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfInitialApplicationOfStandardsOrInterpretationsLineItems" xlink:to="ifrs-full_DisclosureOfInitialApplicationOfStandardsOrInterpretationsLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfInitialApplicationOfStandardsOrInterpretationsLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of initial application of standards or interpretations [line items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfIntangibleAssetsMaterialToEntityAbstract" xlink:label="ifrs-full_DisclosureOfIntangibleAssetsMaterialToEntityAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfIntangibleAssetsMaterialToEntityAbstract" xlink:to="ifrs-full_DisclosureOfIntangibleAssetsMaterialToEntityAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfIntangibleAssetsMaterialToEntityAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of intangible assets material to entity [abstract]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_AmortisationPeriodOfIntangibleAssetsMaterialToEntity" xlink:label="gsm_AmortisationPeriodOfIntangibleAssetsMaterialToEntity" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_AmortisationPeriodOfIntangibleAssetsMaterialToEntity" xlink:to="gsm_AmortisationPeriodOfIntangibleAssetsMaterialToEntity_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_AmortisationPeriodOfIntangibleAssetsMaterialToEntity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amortisation period of individual intangible assets that are material to the entity&#x2019;s financial statements, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_AmortisationPeriodOfIntangibleAssetsMaterialToEntity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amortisation Period Of Intangible Assets Material To Entity</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_AmortisationPeriodOfIntangibleAssetsMaterialToEntity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amortisation period of intangible assets</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfInformationAboutPropertyPlantAndEquipmentAbstract" xlink:label="gsm_DisclosureOfInformationAboutPropertyPlantAndEquipmentAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfInformationAboutPropertyPlantAndEquipmentAbstract" xlink:to="gsm_DisclosureOfInformationAboutPropertyPlantAndEquipmentAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfInformationAboutPropertyPlantAndEquipmentAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfInformationAboutPropertyPlantAndEquipmentAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Of Information About Property Plant And Equipment [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DisclosureOfInformationAboutPropertyPlantAndEquipmentAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Useful lives</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_UsefulLivesIntangibleAssetsPropertyPlantAndEquipment" xlink:label="gsm_UsefulLivesIntangibleAssetsPropertyPlantAndEquipment" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_UsefulLivesIntangibleAssetsPropertyPlantAndEquipment" xlink:to="gsm_UsefulLivesIntangibleAssetsPropertyPlantAndEquipment_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_UsefulLivesIntangibleAssetsPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The useful lives used for intangible assets, and property, plant and equipment, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_UsefulLivesIntangibleAssetsPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Useful Lives Intangible Assets Property Plant And Equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_UsefulLivesIntangibleAssetsPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Useful life</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsPropertyPlantAndEquipmentEstimatedUsefulLives" xlink:label="gsm_IfrsPropertyPlantAndEquipmentEstimatedUsefulLives" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsPropertyPlantAndEquipmentEstimatedUsefulLives" xlink:to="gsm_IfrsPropertyPlantAndEquipmentEstimatedUsefulLives_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsPropertyPlantAndEquipmentEstimatedUsefulLives_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment).</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsPropertyPlantAndEquipmentEstimatedUsefulLives_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs Property Plant and Equipment Estimated Useful Lives</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsPropertyPlantAndEquipmentEstimatedUsefulLives_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Years of Estimated Useful Life</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_BusinessCombinationsAxis" xlink:label="ifrs-full_BusinessCombinationsAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BusinessCombinationsAxis" xlink:to="ifrs-full_BusinessCombinationsAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BusinessCombinationsAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Business combinations [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_EntitysTotalForBusinessCombinationsMember" xlink:label="ifrs-full_EntitysTotalForBusinessCombinationsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EntitysTotalForBusinessCombinationsMember" xlink:to="ifrs-full_EntitysTotalForBusinessCombinationsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EntitysTotalForBusinessCombinationsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Entitys Total For Business Combinations [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_EntitysTotalForBusinessCombinationsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Entity's total for business combinations [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GlobeSpecialtyMetalsIncMember" xlink:label="gsm_GlobeSpecialtyMetalsIncMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GlobeSpecialtyMetalsIncMember" xlink:to="gsm_GlobeSpecialtyMetalsIncMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GlobeSpecialtyMetalsIncMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Globe Specialty Metals, Inc.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GlobeSpecialtyMetalsIncMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Globe Specialty Metals Inc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GlobeSpecialtyMetalsIncMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Globe Specialty Metals Inc</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:label="ifrs-full_DisclosureOfBusinessCombinationsLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfBusinessCombinationsLineItems" xlink:to="ifrs-full_DisclosureOfBusinessCombinationsLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfBusinessCombinationsLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of detailed information about business combination [line items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferredAbstract" xlink:label="ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferredAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferredAbstract" xlink:to="ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferredAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferredAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Acquisition-date fair value of total consideration transferred [abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferredAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Satisfied by:</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_PercentageOfVotingEquityInterestsAcquired" xlink:label="ifrs-full_PercentageOfVotingEquityInterestsAcquired" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PercentageOfVotingEquityInterestsAcquired" xlink:to="ifrs-full_PercentageOfVotingEquityInterestsAcquired_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PercentageOfVotingEquityInterestsAcquired_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of voting equity interests acquired</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_PercentageOfVotingEquityInterestsAcquired_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of equity interests acquired</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PeriodForMarketingAndProcurementOfManganeseOresToSupplyPlant" xlink:label="gsm_PeriodForMarketingAndProcurementOfManganeseOresToSupplyPlant" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PeriodForMarketingAndProcurementOfManganeseOresToSupplyPlant" xlink:to="gsm_PeriodForMarketingAndProcurementOfManganeseOresToSupplyPlant_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PeriodForMarketingAndProcurementOfManganeseOresToSupplyPlant_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The period for marketing and procurement of manganese ores to supply plants.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PeriodForMarketingAndProcurementOfManganeseOresToSupplyPlant_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Period for Marketing and Procurement of Manganese Ores to Supply Plant</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PeriodForMarketingAndProcurementOfManganeseOresToSupplyPlant_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Period for marketing and procurement of manganese ores</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssetsAbstract" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssetsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssetsAbstract" xlink:to="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssetsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssetsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">N/A</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentAssetsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">IFRS Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets [Abstract]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xlink:to="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount of intangible assets, excluding goodwill, acquired at the acquisition date.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">IFRS Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other intangible assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate" xlink:label="ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate" xlink:to="ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Property, plant and equipment recognised as of acquisition date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Property, plant and equipment</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FinancialAssetsRecognisedAsOfAcquisitionDateNonCurrent" xlink:label="gsm_FinancialAssetsRecognisedAsOfAcquisitionDateNonCurrent" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FinancialAssetsRecognisedAsOfAcquisitionDateNonCurrent" xlink:to="gsm_FinancialAssetsRecognisedAsOfAcquisitionDateNonCurrent_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FinancialAssetsRecognisedAsOfAcquisitionDateNonCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount recognised as of the acquisition date for non-current financial assets acquired in a business combination.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FinancialAssetsRecognisedAsOfAcquisitionDateNonCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial Assets Recognised As Of Acquisition Date, Non-Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FinancialAssetsRecognisedAsOfAcquisitionDateNonCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-current financial assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NoncurrentAssetsRecognisedAsOfAcquisitionDate" xlink:label="ifrs-full_NoncurrentAssetsRecognisedAsOfAcquisitionDate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentAssetsRecognisedAsOfAcquisitionDate" xlink:to="ifrs-full_NoncurrentAssetsRecognisedAsOfAcquisitionDate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentAssetsRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-current assets recognised as of acquisition date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_NoncurrentAssetsRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total non-current assets acquired</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsAbstract" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsAbstract" xlink:to="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">N/A</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">IFRS Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_InventoryRecognisedAsOfAcquisitionDate" xlink:label="ifrs-full_InventoryRecognisedAsOfAcquisitionDate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InventoryRecognisedAsOfAcquisitionDate" xlink:to="ifrs-full_InventoryRecognisedAsOfAcquisitionDate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InventoryRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Inventory recognised as of acquisition date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InventoryRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Inventories</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xlink:to="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">IFRS Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade and other receivables</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther" xlink:label="gsm_IfrsBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther" xlink:to="gsm_IfrsBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount of other assets expected to be realized or consumed before one year or the normal operating cycle, if longer, acquired at the acquisition date.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">IFRS Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other current assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate" xlink:label="ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate" xlink:to="ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash and cash equivalents recognised as of acquisition date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Less: cash and cash equivalent balances acquired</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CashAndCashEquivalentsRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash and cash equivalents</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentAssetsRecognisedAsOfAcquisitionDate" xlink:label="ifrs-full_CurrentAssetsRecognisedAsOfAcquisitionDate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentAssetsRecognisedAsOfAcquisitionDate" xlink:to="ifrs-full_CurrentAssetsRecognisedAsOfAcquisitionDate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentAssetsRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current assets recognised as of acquisition date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_CurrentAssetsRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total current liabilities assumed</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:to="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount of assets acquired at the acquisition date.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">IFRS Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total assets acquired</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesAbstract" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesAbstract" xlink:to="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">N/A</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">IFRS Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate" xlink:label="ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate" xlink:to="ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Deferred tax liabilities recognised as of acquisition date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Deferred tax liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate" xlink:label="ifrs-full_NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate" xlink:to="ifrs-full_NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-current liabilities recognised as of acquisition date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total non-current liabilities acquired</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAbstract" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAbstract" xlink:to="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">N/A</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">IFRS Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate" xlink:label="ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate" xlink:to="ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade and other payables recognised as of acquisition date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TradeAndOtherPayablesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade and other payables</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ProvisionsRecognisedAsOfAcquisitionDateCurrent" xlink:label="gsm_ProvisionsRecognisedAsOfAcquisitionDateCurrent" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ProvisionsRecognisedAsOfAcquisitionDateCurrent" xlink:to="gsm_ProvisionsRecognisedAsOfAcquisitionDateCurrent_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ProvisionsRecognisedAsOfAcquisitionDateCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount recognised as of the acquisition date for current provisions assumed in a business combination.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ProvisionsRecognisedAsOfAcquisitionDateCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provisions Recognised As Of Acquisition Date, Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ProvisionsRecognisedAsOfAcquisitionDateCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provisions</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CurrentIncomeTaxLiabilitiesRecognisedAsOfAcquisitionDate" xlink:label="gsm_CurrentIncomeTaxLiabilitiesRecognisedAsOfAcquisitionDate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CurrentIncomeTaxLiabilitiesRecognisedAsOfAcquisitionDate" xlink:to="gsm_CurrentIncomeTaxLiabilitiesRecognisedAsOfAcquisitionDate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CurrentIncomeTaxLiabilitiesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount recognised as of the acquisition date for current income tax liabilities assumed in a business combination.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CurrentIncomeTaxLiabilitiesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current Income Tax Liabilities Recognised As Of Acquisition Date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_CurrentIncomeTaxLiabilitiesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current income tax liabilities</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther" xlink:to="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount of other liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">IFRS Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IFRSBusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other current liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentLiabilitiesRecognisedAsOfAcquisitionDate" xlink:label="ifrs-full_CurrentLiabilitiesRecognisedAsOfAcquisitionDate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentLiabilitiesRecognisedAsOfAcquisitionDate" xlink:to="ifrs-full_CurrentLiabilitiesRecognisedAsOfAcquisitionDate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentLiabilitiesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current liabilities recognised as of acquisition date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_CurrentLiabilitiesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total current liabilities assumed</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TotalLiabilitiesRecognisedAsOfAcquisitionDate" xlink:label="gsm_TotalLiabilitiesRecognisedAsOfAcquisitionDate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TotalLiabilitiesRecognisedAsOfAcquisitionDate" xlink:to="gsm_TotalLiabilitiesRecognisedAsOfAcquisitionDate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TotalLiabilitiesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The total amount of liabilities assumed in a business combination.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TotalLiabilitiesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total Liabilities Recognised As Of Acquisition Date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gsm_TotalLiabilitiesRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total liabilities assumed</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed" xlink:label="ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed" xlink:to="ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Identifiable assets acquired (liabilities assumed)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_IdentifiableAssetsAcquiredLiabilitiesAssumed_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net assets acquired</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CashTransferred" xlink:label="ifrs-full_CashTransferred" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashTransferred" xlink:to="ifrs-full_CashTransferred_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashTransferred_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash Transferred</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CashTransferred_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LiabilitiesIncurred" xlink:label="ifrs-full_LiabilitiesIncurred" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LiabilitiesIncurred" xlink:to="ifrs-full_LiabilitiesIncurred_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LiabilitiesIncurred_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Liabilities Incurred</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LiabilitiesIncurred_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Contingent consideration</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_LiabilitiesIncurred_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Contingent consideration</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred" xlink:label="ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred" xlink:to="ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Consideration transferred, acquisition-date fair value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_AcquisitiondateFairValueOfTotalConsiderationTransferred_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Acquisition Consideration</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NetCashOutflowOnBusinessCombination" xlink:label="gsm_NetCashOutflowOnBusinessCombination" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NetCashOutflowOnBusinessCombination" xlink:to="gsm_NetCashOutflowOnBusinessCombination_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NetCashOutflowOnBusinessCombination_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of cash outflow, net of cash acquired on business combination, recognised at acquisition date.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NetCashOutflowOnBusinessCombination_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net Cash Outflow On Business Combination</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gsm_NetCashOutflowOnBusinessCombination_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net cash outflow arising on acquisition</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_FairValueOfAcquiredReceivables" xlink:label="ifrs-full_FairValueOfAcquiredReceivables" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FairValueOfAcquiredReceivables" xlink:to="ifrs-full_FairValueOfAcquiredReceivables_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FairValueOfAcquiredReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">FairValueOfAcquiredReceivables</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FairValueOfAcquiredReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Fair value of trade receivables</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GainLossRelatingToAcquiredReceivables" xlink:label="gsm_GainLossRelatingToAcquiredReceivables" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GainLossRelatingToAcquiredReceivables" xlink:to="gsm_GainLossRelatingToAcquiredReceivables_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GainLossRelatingToAcquiredReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of difference between gross contractual value and fair value of acquired receivables.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GainLossRelatingToAcquiredReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gain Loss Relating to Acquired Receivables</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GainLossRelatingToAcquiredReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gain loss relating to acquired receivables</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate" xlink:label="ifrs-full_ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate" xlink:to="ifrs-full_ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ContingentConsiderationArrangementsAndIndemnificationAssetsRecognisedAsOfAcquisitionDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Contingent consideration arrangements</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ContingentConsiderationThresholdPeriodOfSalesMadeFromDateOfAcquisition" xlink:label="gsm_ContingentConsiderationThresholdPeriodOfSalesMadeFromDateOfAcquisition" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ContingentConsiderationThresholdPeriodOfSalesMadeFromDateOfAcquisition" xlink:to="gsm_ContingentConsiderationThresholdPeriodOfSalesMadeFromDateOfAcquisition_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ContingentConsiderationThresholdPeriodOfSalesMadeFromDateOfAcquisition_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The threshold period from the date of acquisition to which contingent consideration applies for the sales made.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ContingentConsiderationThresholdPeriodOfSalesMadeFromDateOfAcquisition_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Contingent Consideration, Threshold Period Of Sales Made From The Date Of Acquisition</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ContingentConsiderationThresholdPeriodOfSalesMadeFromDateOfAcquisition_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Period of contingent consideration applied to sales</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DiscountRateUsedInSignificantUnobservableInputs" xlink:label="gsm_DiscountRateUsedInSignificantUnobservableInputs" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DiscountRateUsedInSignificantUnobservableInputs" xlink:to="gsm_DiscountRateUsedInSignificantUnobservableInputs_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DiscountRateUsedInSignificantUnobservableInputs_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Discount rate used as a significant Level 3 unobservable input.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DiscountRateUsedInSignificantUnobservableInputs_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Discount Rate Used In Significant Unobservable Inputs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DiscountRateUsedInSignificantUnobservableInputs_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Discount rates</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_AverageSimulatedRevenueUsedInSignificantUnobservableInputs" xlink:label="gsm_AverageSimulatedRevenueUsedInSignificantUnobservableInputs" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_AverageSimulatedRevenueUsedInSignificantUnobservableInputs" xlink:to="gsm_AverageSimulatedRevenueUsedInSignificantUnobservableInputs_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_AverageSimulatedRevenueUsedInSignificantUnobservableInputs_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Average simulated revenue used as a significant Level 3 unobservable input.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_AverageSimulatedRevenueUsedInSignificantUnobservableInputs_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Average Simulated Revenue Used In Significant Unobservable Inputs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_AverageSimulatedRevenueUsedInSignificantUnobservableInputs_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Average simulated revenues</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_RevenueOfAcquiree" xlink:label="ifrs-full_RevenueOfAcquiree" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RevenueOfAcquiree" xlink:to="ifrs-full_RevenueOfAcquiree_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RevenueOfAcquiree_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Revenue of acquiree since acquisition date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_RevenueOfAcquiree_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Revenue of acquiree</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ProfitLossOfAcquiree" xlink:label="ifrs-full_ProfitLossOfAcquiree" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProfitLossOfAcquiree" xlink:to="ifrs-full_ProfitLossOfAcquiree_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProfitLossOfAcquiree_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Profit (loss) of acquiree since acquisition date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ProfitLossOfAcquiree_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Loss of acquiree</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_RevenueOfCombinedEntity" xlink:label="ifrs-full_RevenueOfCombinedEntity" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RevenueOfCombinedEntity" xlink:to="ifrs-full_RevenueOfCombinedEntity_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RevenueOfCombinedEntity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Revenue of combined entity as if combination occurred at beginning of period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_RevenueOfCombinedEntity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Revenue of combined entity</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ProfitLossOfCombinedEntity" xlink:label="ifrs-full_ProfitLossOfCombinedEntity" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProfitLossOfCombinedEntity" xlink:to="ifrs-full_ProfitLossOfCombinedEntity_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProfitLossOfCombinedEntity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Profit (loss) of combined entity as if combination occurred at beginning of period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ProfitLossOfCombinedEntity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">profit of combined entity</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:label="ifrs-full_DisclosureOfOperatingSegmentsTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfOperatingSegmentsTable" xlink:to="ifrs-full_DisclosureOfOperatingSegmentsTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfOperatingSegmentsTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of operating segments [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:label="ifrs-full_DisclosureOfOperatingSegmentsLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfOperatingSegmentsLineItems" xlink:to="ifrs-full_DisclosureOfOperatingSegmentsLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfOperatingSegmentsLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of operating segments [line items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfOperatingSegmentsLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Sales by segment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfOperatingSegmentsLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Sales by Geographical Area</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_SegmentConsolidationItemsAxis" xlink:label="ifrs-full_SegmentConsolidationItemsAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_SegmentConsolidationItemsAxis" xlink:to="ifrs-full_SegmentConsolidationItemsAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_SegmentConsolidationItemsAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Segment consolidation items [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_EntitysTotalForSegmentConsolidationItemsMember" xlink:label="ifrs-full_EntitysTotalForSegmentConsolidationItemsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EntitysTotalForSegmentConsolidationItemsMember" xlink:to="ifrs-full_EntitysTotalForSegmentConsolidationItemsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EntitysTotalForSegmentConsolidationItemsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Entitys Total For Segment Consolidation Items [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_EntitysTotalForSegmentConsolidationItemsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Entity's total for segment consolidation items [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_EliminationOfIntersegmentAmountsMember" xlink:label="ifrs-full_EliminationOfIntersegmentAmountsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EliminationOfIntersegmentAmountsMember" xlink:to="ifrs-full_EliminationOfIntersegmentAmountsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EliminationOfIntersegmentAmountsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Elimination Of Intersegment Amounts [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_EliminationOfIntersegmentAmountsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Eliminations</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TradeAndOtherReceivables" xlink:label="ifrs-full_TradeAndOtherReceivables" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherReceivables" xlink:to="ifrs-full_TradeAndOtherReceivables_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade and other receivables</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TradeAndOtherReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade and other receivables</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_OtherAssetsOther" xlink:label="gsm_OtherAssetsOther" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_OtherAssetsOther" xlink:to="gsm_OtherAssetsOther_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_OtherAssetsOther_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other assets, other</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_OtherAssetsOther_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other assets, other</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_OtherAssetsOther_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_Provisions" xlink:label="ifrs-full_Provisions" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Provisions" xlink:to="ifrs-full_Provisions_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Provisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provisions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_Provisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Balance at end of period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_Provisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Balance at beginning of period</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_Borrowings" xlink:label="ifrs-full_Borrowings" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Borrowings" xlink:to="ifrs-full_Borrowings_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Borrowings_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Borrowings</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_Borrowings_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Bank borrowings</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_Borrowings_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DebtSecurities" xlink:label="ifrs-full_DebtSecurities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DebtSecurities" xlink:to="ifrs-full_DebtSecurities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DebtSecurities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Debt instruments issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_DebtSecurities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total debt instruments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DebtSecurities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Debt instruments</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherFinancialLiabilities" xlink:label="ifrs-full_OtherFinancialLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherFinancialLiabilities" xlink:to="ifrs-full_OtherFinancialLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherFinancialLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other financial liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_OtherFinancialLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xlink:label="ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xlink:to="ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current trade payables</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade and other payables</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_OtherLiabilitiesIncomeTaxLiabilitiesAndMiscellaneousLiabilities" xlink:label="gsm_OtherLiabilitiesIncomeTaxLiabilitiesAndMiscellaneousLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_OtherLiabilitiesIncomeTaxLiabilitiesAndMiscellaneousLiabilities" xlink:to="gsm_OtherLiabilitiesIncomeTaxLiabilitiesAndMiscellaneousLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_OtherLiabilitiesIncomeTaxLiabilitiesAndMiscellaneousLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of liabilities, including but not limited to other liabilities, miscellaneous liabilities and income tax liabilities that the entity does not separately disclose in the same statement or note.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_OtherLiabilitiesIncomeTaxLiabilitiesAndMiscellaneousLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Liabilities Income Tax Liabilities And Miscellaneous Liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_OtherLiabilitiesIncomeTaxLiabilitiesAndMiscellaneousLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfProductsAndServicesTable" xlink:label="ifrs-full_DisclosureOfProductsAndServicesTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfProductsAndServicesTable" xlink:to="ifrs-full_DisclosureOfProductsAndServicesTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfProductsAndServicesTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of products and services [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ProductsAndServicesAxis" xlink:label="ifrs-full_ProductsAndServicesAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProductsAndServicesAxis" xlink:to="ifrs-full_ProductsAndServicesAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProductsAndServicesAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Products and services [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ProductsAndServicesMember" xlink:label="ifrs-full_ProductsAndServicesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProductsAndServicesMember" xlink:to="ifrs-full_ProductsAndServicesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProductsAndServicesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Products And Services [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProductsAndServicesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Products and services [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_SiliconMetalProductLineMember" xlink:label="gsm_SiliconMetalProductLineMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_SiliconMetalProductLineMember" xlink:to="gsm_SiliconMetalProductLineMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_SiliconMetalProductLineMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the silicon metal product line.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_SiliconMetalProductLineMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Silicon Metal Product Line [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_SiliconMetalProductLineMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Silicon Metal Product Line [Member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ManganeseAlloysProductLineMember" xlink:label="gsm_ManganeseAlloysProductLineMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ManganeseAlloysProductLineMember" xlink:to="gsm_ManganeseAlloysProductLineMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ManganeseAlloysProductLineMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the manganese alloys product line.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ManganeseAlloysProductLineMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Manganese Alloys Product Line [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ManganeseAlloysProductLineMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Manganese Alloys Product Line [Member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerrosiliconProductLineMember" xlink:label="gsm_FerrosiliconProductLineMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerrosiliconProductLineMember" xlink:to="gsm_FerrosiliconProductLineMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerrosiliconProductLineMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the ferrosilicon product line.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerrosiliconProductLineMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferrosilicon Product Line [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerrosiliconProductLineMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferrosilicon Product Line [Member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_OtherSiliconBasedAlloysProductLineMember" xlink:label="gsm_OtherSiliconBasedAlloysProductLineMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_OtherSiliconBasedAlloysProductLineMember" xlink:to="gsm_OtherSiliconBasedAlloysProductLineMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_OtherSiliconBasedAlloysProductLineMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the other silicon based alloys product line.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_OtherSiliconBasedAlloysProductLineMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Silicon Based Alloys Product Line [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_OtherSiliconBasedAlloysProductLineMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Silicon Based Alloys Product Line [Member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_SilicaFumeProductLineMember" xlink:label="gsm_SilicaFumeProductLineMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_SilicaFumeProductLineMember" xlink:to="gsm_SilicaFumeProductLineMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_SilicaFumeProductLineMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the silica fume product line.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_SilicaFumeProductLineMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Silica Fume Product Line [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_SilicaFumeProductLineMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Silica Fume Product Line [Member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_EnergyProductLineMember" xlink:label="gsm_EnergyProductLineMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_EnergyProductLineMember" xlink:to="gsm_EnergyProductLineMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_EnergyProductLineMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Energy product line.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_EnergyProductLineMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Energy Product Line [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_EnergyProductLineMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Energy Product Line [Member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_OtherProductLinesMember" xlink:label="gsm_OtherProductLinesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_OtherProductLinesMember" xlink:to="gsm_OtherProductLinesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_OtherProductLinesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for other product lines not individually disclosed.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_OtherProductLinesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Product Lines [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_OtherProductLinesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Product Lines [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfProductsAndServicesLineItems" xlink:label="ifrs-full_DisclosureOfProductsAndServicesLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfProductsAndServicesLineItems" xlink:to="ifrs-full_DisclosureOfProductsAndServicesLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfProductsAndServicesLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of products and services [line items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfProductsAndServicesAbstract" xlink:label="ifrs-full_DisclosureOfProductsAndServicesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfProductsAndServicesAbstract" xlink:to="ifrs-full_DisclosureOfProductsAndServicesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfProductsAndServicesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of products and services [abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfMajorCustomersTable" xlink:label="ifrs-full_DisclosureOfMajorCustomersTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfMajorCustomersTable" xlink:to="ifrs-full_DisclosureOfMajorCustomersTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfMajorCustomersTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of major customers [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_MajorCustomersAxis" xlink:label="ifrs-full_MajorCustomersAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MajorCustomersAxis" xlink:to="ifrs-full_MajorCustomersAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MajorCustomersAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Major customers [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_MajorCustomersMember" xlink:label="ifrs-full_MajorCustomersMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MajorCustomersMember" xlink:to="ifrs-full_MajorCustomersMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MajorCustomersMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Major Customers [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_MajorCustomersMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Customers [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TopTenCustomersMember" xlink:label="gsm_TopTenCustomersMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TopTenCustomersMember" xlink:to="gsm_TopTenCustomersMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TopTenCustomersMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the top ten customers.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TopTenCustomersMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Top Ten Customers [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_TopTenCustomersMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Top Ten Customers [Member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DowCorningCorporationMember" xlink:label="gsm_DowCorningCorporationMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DowCorningCorporationMember" xlink:to="gsm_DowCorningCorporationMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DowCorningCorporationMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Dow Corning Corporation customer.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DowCorningCorporationMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Dow Corning Corporation [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DowCorningCorporationMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Dow Corning Corporation [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfMajorCustomersLineItems" xlink:label="ifrs-full_DisclosureOfMajorCustomersLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfMajorCustomersLineItems" xlink:to="ifrs-full_DisclosureOfMajorCustomersLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfMajorCustomersLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of major customers [line items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfMajorCustomersAbstract" xlink:label="ifrs-full_DisclosureOfMajorCustomersAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfMajorCustomersAbstract" xlink:to="ifrs-full_DisclosureOfMajorCustomersAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfMajorCustomersAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of major customers [abstract]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfCustomersInGroup" xlink:label="gsm_NumberOfCustomersInGroup" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberOfCustomersInGroup" xlink:to="gsm_NumberOfCustomersInGroup_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfCustomersInGroup_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the number of customers in the group used to measure and analyse concentration risk.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfCustomersInGroup_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number Of Customers In Group</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NumberOfCustomersInGroup_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of major customers</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_PercentageOfEntitysRevenue" xlink:label="ifrs-full_PercentageOfEntitysRevenue" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PercentageOfEntitysRevenue" xlink:to="ifrs-full_PercentageOfEntitysRevenue_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PercentageOfEntitysRevenue_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of entity's revenue</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_PercentageOfEntitysRevenue_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">% of sales</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_PercentageOfEntitysRevenue_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of Company's sales</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable" xlink:to="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of reconciliation of changes in goodwill [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_CA" xlink:label="country_CA" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="country_CA" xlink:to="country_CA_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="country_CA_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">C [A]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="country_CA_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">CANADA</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ElectrometallurgyUnitedStatesSegmentMember" xlink:label="gsm_ElectrometallurgyUnitedStatesSegmentMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ElectrometallurgyUnitedStatesSegmentMember" xlink:to="gsm_ElectrometallurgyUnitedStatesSegmentMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ElectrometallurgyUnitedStatesSegmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Electrometallurgy - U.S. operating segment.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ElectrometallurgyUnitedStatesSegmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Electrometallurgy United States Segment [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ElectrometallurgyUnitedStatesSegmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Electrometallurgy United States Segment</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ElectrometallurgyCanadaSegmentMember" xlink:label="gsm_ElectrometallurgyCanadaSegmentMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ElectrometallurgyCanadaSegmentMember" xlink:to="gsm_ElectrometallurgyCanadaSegmentMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ElectrometallurgyCanadaSegmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Electrometallurgy - Canada operating segment.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ElectrometallurgyCanadaSegmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Electrometallurgy Canada Segment [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ElectrometallurgyCanadaSegmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Electrometallurgy Canada Segment</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems" xlink:to="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfReconciliationOfChangesInGoodwillLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of reconciliation of changes in goodwill [line items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ReconciliationOfChangesInGoodwillAbstract" xlink:label="ifrs-full_ReconciliationOfChangesInGoodwillAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ReconciliationOfChangesInGoodwillAbstract" xlink:to="ifrs-full_ReconciliationOfChangesInGoodwillAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ReconciliationOfChangesInGoodwillAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Reconciliation of changes in goodwill [abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill" xlink:to="ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Impairment loss recognised in profit or loss, goodwill</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Impairment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Impairment charge related to goodwill</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesGoodwill" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesGoodwill" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesGoodwill" xlink:to="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesGoodwill_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (decrease) through net exchange differences, goodwill</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Exchange differences</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable" xlink:label="ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable" xlink:to="ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of significant unobservable inputs used in fair value measurement of assets [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsLineItems" xlink:label="ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsLineItems" xlink:to="ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAbstract" xlink:label="ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAbstract" xlink:to="ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfSignificantUnobservableInputsUsedInFairValueMeasurementOfAssetsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of significant unobservable inputs used in fair value measurement of assets [abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_WeightedAverageCostOfCapitalSignificantUnobservableInputsAssets" xlink:label="ifrs-full_WeightedAverageCostOfCapitalSignificantUnobservableInputsAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WeightedAverageCostOfCapitalSignificantUnobservableInputsAssets" xlink:to="ifrs-full_WeightedAverageCostOfCapitalSignificantUnobservableInputsAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_WeightedAverageCostOfCapitalSignificantUnobservableInputsAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted average cost of capital, significant unobservable inputs, assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_WeightedAverageCostOfCapitalSignificantUnobservableInputsAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted Average Cost of Capital</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_LongTermGrowthRateSignificantUnobservableInputsAssets" xlink:label="gsm_LongTermGrowthRateSignificantUnobservableInputsAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_LongTermGrowthRateSignificantUnobservableInputsAssets" xlink:to="gsm_LongTermGrowthRateSignificantUnobservableInputsAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_LongTermGrowthRateSignificantUnobservableInputsAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Long-term growth rate used as a significant Level 3 unobservable input for assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_LongTermGrowthRateSignificantUnobservableInputsAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Long Term Growth Rate, Significant Unobservable Inputs, Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_LongTermGrowthRateSignificantUnobservableInputsAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Long-Term Growth Rate</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NormalizedTaxRateSignificantUnobservableInputsAssets" xlink:label="gsm_NormalizedTaxRateSignificantUnobservableInputsAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NormalizedTaxRateSignificantUnobservableInputsAssets" xlink:to="gsm_NormalizedTaxRateSignificantUnobservableInputsAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NormalizedTaxRateSignificantUnobservableInputsAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Normalized tax rate used as a significant Level 3 unobservable input for assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NormalizedTaxRateSignificantUnobservableInputsAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Normalized Tax Rate, Significant Unobservable Inputs, Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NormalizedTaxRateSignificantUnobservableInputsAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Normalized Tax Rate</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FreeNetWorkingCapitalSignificantUnobservableInputsAssets" xlink:label="gsm_FreeNetWorkingCapitalSignificantUnobservableInputsAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FreeNetWorkingCapitalSignificantUnobservableInputsAssets" xlink:to="gsm_FreeNetWorkingCapitalSignificantUnobservableInputsAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FreeNetWorkingCapitalSignificantUnobservableInputsAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Free net working capital percent used as a significant Level 3 unobservable input for assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FreeNetWorkingCapitalSignificantUnobservableInputsAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Free Net Working Capital, Significant Unobservable Inputs, Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FreeNetWorkingCapitalSignificantUnobservableInputsAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Normalized Cash Free Net Working Capital</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TermOfProjectionsSignificantUnobservableInputsAssets" xlink:label="gsm_TermOfProjectionsSignificantUnobservableInputsAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TermOfProjectionsSignificantUnobservableInputsAssets" xlink:to="gsm_TermOfProjectionsSignificantUnobservableInputsAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TermOfProjectionsSignificantUnobservableInputsAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The term of projections used to determine significant Level 3 unobservable inputs for assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TermOfProjectionsSignificantUnobservableInputsAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Term Of Projections, Significant Unobservable Inputs, Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_TermOfProjectionsSignificantUnobservableInputsAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Period of projections</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_MeasurementAxis" xlink:label="ifrs-full_MeasurementAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MeasurementAxis" xlink:to="ifrs-full_MeasurementAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MeasurementAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Measurement [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AggregatedMeasurementMember" xlink:label="ifrs-full_AggregatedMeasurementMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AggregatedMeasurementMember" xlink:to="ifrs-full_AggregatedMeasurementMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AggregatedMeasurementMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Aggregated Measurement [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AggregatedMeasurementMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Aggregated measurement [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_SensitivityOnDiscountRateDecreaseByTenPercentMember" xlink:label="gsm_SensitivityOnDiscountRateDecreaseByTenPercentMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_SensitivityOnDiscountRateDecreaseByTenPercentMember" xlink:to="gsm_SensitivityOnDiscountRateDecreaseByTenPercentMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_SensitivityOnDiscountRateDecreaseByTenPercentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for a 10% decrease in the discount rate used for measurement.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_SensitivityOnDiscountRateDecreaseByTenPercentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Sensitivity On Discount Rate Decrease By Ten Percent [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_SensitivityOnDiscountRateDecreaseByTenPercentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Sensitivity On Discount Rate, Decrease By Ten Percent</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_SensitivityOnDiscountRateIncreaseByTenPercentMember" xlink:label="gsm_SensitivityOnDiscountRateIncreaseByTenPercentMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_SensitivityOnDiscountRateIncreaseByTenPercentMember" xlink:to="gsm_SensitivityOnDiscountRateIncreaseByTenPercentMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_SensitivityOnDiscountRateIncreaseByTenPercentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for a 10% increase in the discount rate used for measurement.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_SensitivityOnDiscountRateIncreaseByTenPercentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Sensitivity On Discount Rate Increase By Ten Percent [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_SensitivityOnDiscountRateIncreaseByTenPercentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Sensitivity On Discount Rate, Increase By Ten Percent</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_SensitivityOnLongTermGrowthRateDecreaseByTenPercentMember" xlink:label="gsm_SensitivityOnLongTermGrowthRateDecreaseByTenPercentMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_SensitivityOnLongTermGrowthRateDecreaseByTenPercentMember" xlink:to="gsm_SensitivityOnLongTermGrowthRateDecreaseByTenPercentMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_SensitivityOnLongTermGrowthRateDecreaseByTenPercentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for a 10% decrease in the long-term growth rate used for measurement.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_SensitivityOnLongTermGrowthRateDecreaseByTenPercentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Sensitivity On Long Term Growth Rate Decrease By Ten Percent [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_SensitivityOnLongTermGrowthRateDecreaseByTenPercentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Sensitivity On Long Term Growth Rate, Decrease By Ten Percent</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_SensitivityOnLongTermGrowthRateIncreaseByTenPercentMember" xlink:label="gsm_SensitivityOnLongTermGrowthRateIncreaseByTenPercentMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_SensitivityOnLongTermGrowthRateIncreaseByTenPercentMember" xlink:to="gsm_SensitivityOnLongTermGrowthRateIncreaseByTenPercentMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_SensitivityOnLongTermGrowthRateIncreaseByTenPercentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for a 10% increase in the long-term growth rate used for measurement.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_SensitivityOnLongTermGrowthRateIncreaseByTenPercentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Sensitivity On Long Term Growth Rate Increase By Ten Percent [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_SensitivityOnLongTermGrowthRateIncreaseByTenPercentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Sensitivity On Long Term Growth Rate, Increase By Ten Percent</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_SensitivityOnCashFlowsDecreaseByTenPercentMember" xlink:label="gsm_SensitivityOnCashFlowsDecreaseByTenPercentMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_SensitivityOnCashFlowsDecreaseByTenPercentMember" xlink:to="gsm_SensitivityOnCashFlowsDecreaseByTenPercentMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_SensitivityOnCashFlowsDecreaseByTenPercentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for a 10% decrease in cash flows used for measurement.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_SensitivityOnCashFlowsDecreaseByTenPercentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Sensitivity On Cash Flows Decrease By Ten Percent [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_SensitivityOnCashFlowsDecreaseByTenPercentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Sensitivity On Cash Flows, Decrease By Ten Percent</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_SensitivityOnCashFlowsIncreaseByTenPercentMember" xlink:label="gsm_SensitivityOnCashFlowsIncreaseByTenPercentMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_SensitivityOnCashFlowsIncreaseByTenPercentMember" xlink:to="gsm_SensitivityOnCashFlowsIncreaseByTenPercentMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_SensitivityOnCashFlowsIncreaseByTenPercentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for a 10% increase in cash flows used for measurement.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_SensitivityOnCashFlowsIncreaseByTenPercentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Sensitivity On Cash Flows Increase By Ten Percent [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_SensitivityOnCashFlowsIncreaseByTenPercentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Sensitivity On Cash Flows, Increase By Ten Percent</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ExcessOfRecoverableValueOverCarryingValueOfBusinessAcquisition" xlink:label="gsm_ExcessOfRecoverableValueOverCarryingValueOfBusinessAcquisition" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ExcessOfRecoverableValueOverCarryingValueOfBusinessAcquisition" xlink:to="gsm_ExcessOfRecoverableValueOverCarryingValueOfBusinessAcquisition_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ExcessOfRecoverableValueOverCarryingValueOfBusinessAcquisition_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the excess of recoverable value over carrying value of a business acquisition in determination of goodwill impairment.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ExcessOfRecoverableValueOverCarryingValueOfBusinessAcquisition_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Excess Of Recoverable Value Over Carrying Value Of Business Acquisition</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ExcessOfRecoverableValueOverCarryingValueOfBusinessAcquisition_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Excess of recoverable value over carrying value</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_AggregateIncreaseDecreaseInFairValueOfBusinessAcquisition" xlink:label="gsm_AggregateIncreaseDecreaseInFairValueOfBusinessAcquisition" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_AggregateIncreaseDecreaseInFairValueOfBusinessAcquisition" xlink:to="gsm_AggregateIncreaseDecreaseInFairValueOfBusinessAcquisition_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_AggregateIncreaseDecreaseInFairValueOfBusinessAcquisition_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the total increase (decrease) in the fair value of a business acquisition.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_AggregateIncreaseDecreaseInFairValueOfBusinessAcquisition_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Aggregate Increase (Decrease) In Fair Value Of Business Acquisition</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_AggregateIncreaseDecreaseInFairValueOfBusinessAcquisition_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (decrease) in value of cash generating units</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfIntangibleAssetsTable" xlink:label="ifrs-full_DisclosureOfIntangibleAssetsTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfIntangibleAssetsTable" xlink:to="ifrs-full_DisclosureOfIntangibleAssetsTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfIntangibleAssetsTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of detailed information about intangible assets [table]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PowerSupplyAgreementsMember" xlink:label="gsm_PowerSupplyAgreementsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PowerSupplyAgreementsMember" xlink:to="gsm_PowerSupplyAgreementsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PowerSupplyAgreementsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for intangible power supply agreement assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PowerSupplyAgreementsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Power Supply Agreements [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PowerSupplyAgreementsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Power Supply Agreements</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherIntangibleAssetsMember" xlink:label="ifrs-full_OtherIntangibleAssetsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherIntangibleAssetsMember" xlink:to="ifrs-full_OtherIntangibleAssetsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherIntangibleAssetsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Intangible Assets [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherIntangibleAssetsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other intangible assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:label="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis" xlink:to="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CarryingAmountMember" xlink:label="ifrs-full_CarryingAmountMember" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_GrossCarryingAmountMember" xlink:label="ifrs-full_GrossCarryingAmountMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GrossCarryingAmountMember" xlink:to="ifrs-full_GrossCarryingAmountMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GrossCarryingAmountMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gross Carrying Amount [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GrossCarryingAmountMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gross carrying amount</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AccumulatedDepreciationAndAmortisationMember" xlink:label="ifrs-full_AccumulatedDepreciationAndAmortisationMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AccumulatedDepreciationAndAmortisationMember" xlink:to="ifrs-full_AccumulatedDepreciationAndAmortisationMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AccumulatedDepreciationAndAmortisationMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Accumulated Depreciation And Amortisation [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AccumulatedDepreciationAndAmortisationMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Accumulated depreciation and amortisation</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AccumulatedImpairmentMember" xlink:label="ifrs-full_AccumulatedImpairmentMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AccumulatedImpairmentMember" xlink:to="ifrs-full_AccumulatedImpairmentMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AccumulatedImpairmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Accumulated Impairment [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AccumulatedImpairmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Accumulated impairment</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfIntangibleAssetsLineItems" xlink:label="ifrs-full_DisclosureOfIntangibleAssetsLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfIntangibleAssetsLineItems" xlink:to="ifrs-full_DisclosureOfIntangibleAssetsLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfIntangibleAssetsLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of detailed information about intangible assets [line items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ReconciliationOfChangesInIntangibleAssetsOtherThanGoodwillAbstract" xlink:label="ifrs-full_ReconciliationOfChangesInIntangibleAssetsOtherThanGoodwillAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ReconciliationOfChangesInIntangibleAssetsOtherThanGoodwillAbstract" xlink:to="ifrs-full_ReconciliationOfChangesInIntangibleAssetsOtherThanGoodwillAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ReconciliationOfChangesInIntangibleAssetsOtherThanGoodwillAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Reconciliation of changes in intangible assets other than goodwill [abstract]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NetAdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:label="gsm_NetAdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NetAdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:to="gsm_NetAdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NetAdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of additions to other intangible assets other than goodwill, other than through business combinations, net of accumulated depreciation and impairment charges.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NetAdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net Additions Other Than Through Business Combinations Intangible Assets Other Than Goodwill</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NetAdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Additions</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill" xlink:label="ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill" xlink:to="ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disposals, intangible assets other than goodwill</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_DisposalsIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disposals</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill" xlink:to="ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Acquisitions through business combinations, intangible assets other than goodwill</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Business combinations (Note 5)</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IncreaseDecreaseThroughTransfersIntangibleAssetsOtherThanGoodwill" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersIntangibleAssetsOtherThanGoodwill" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughTransfersIntangibleAssetsOtherThanGoodwill" xlink:to="ifrs-full_IncreaseDecreaseThroughTransfersIntangibleAssetsOtherThanGoodwill_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (decrease) through transfers, intangible assets other than goodwill</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Transfers from/(to) other accounts</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill" xlink:to="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (decrease) through net exchange differences, intangible assets other than goodwill</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Exchange differences</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill" xlink:to="ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Impairment loss recognised in profit or loss, intangible assets other than goodwill</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Impairment charge related to intangible assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsOtherThanGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Impairment of intangible assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IntangibleAssetsPledgedAsSecurityForLiabilities" xlink:label="ifrs-full_IntangibleAssetsPledgedAsSecurityForLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IntangibleAssetsPledgedAsSecurityForLiabilities" xlink:to="ifrs-full_IntangibleAssetsPledgedAsSecurityForLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IntangibleAssetsPledgedAsSecurityForLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Intangible assets pledged as security for liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IntangibleAssetsPledgedAsSecurityForLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Intangible assets pledged as security</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:label="ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable" xlink:to="ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfPropertyPlantAndEquipmentTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of detailed information about property, plant and equipment [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LandAndBuildingsMember" xlink:label="ifrs-full_LandAndBuildingsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LandAndBuildingsMember" xlink:to="ifrs-full_LandAndBuildingsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LandAndBuildingsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Land And Buildings [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LandAndBuildingsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Land and buildings</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_MachineryMember" xlink:label="ifrs-full_MachineryMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MachineryMember" xlink:to="ifrs-full_MachineryMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MachineryMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Machinery [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_MachineryMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Plant and Machinery</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_FixturesAndFittingsMember" xlink:label="ifrs-full_FixturesAndFittingsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FixturesAndFittingsMember" xlink:to="ifrs-full_FixturesAndFittingsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FixturesAndFittingsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Fixtures And Fittings [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FixturesAndFittingsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Fixtures, Tools and Furniture</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ConstructionInProgressMember" xlink:label="ifrs-full_ConstructionInProgressMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ConstructionInProgressMember" xlink:to="ifrs-full_ConstructionInProgressMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ConstructionInProgressMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Construction In Progress [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ConstructionInProgressMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Advances Property, Plant and Equipment in the Course of Construction</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_MineralReservesMember" xlink:label="gsm_MineralReservesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_MineralReservesMember" xlink:to="gsm_MineralReservesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_MineralReservesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for mineral reserves.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_MineralReservesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Mineral Reserves [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_MineralReservesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Mineral Reserves</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherPropertyPlantAndEquipmentMember" xlink:label="ifrs-full_OtherPropertyPlantAndEquipmentMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherPropertyPlantAndEquipmentMember" xlink:to="ifrs-full_OtherPropertyPlantAndEquipmentMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherPropertyPlantAndEquipmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Property Plant And Equipment [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherPropertyPlantAndEquipmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Items of Property, Plant and Equipment</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:label="ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems" xlink:to="ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of detailed information about property, plant and equipment [line items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract" xlink:label="ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract" xlink:to="ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Reconciliation of changes in property, plant and equipment [abstract]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NetAdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:label="gsm_NetAdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NetAdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:to="gsm_NetAdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NetAdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of additions to property, plant and equipment other than through business combinations, net of accumulated depreciation and impairment charges.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NetAdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net Additions Other Than Through Business Combinations Property Plant And Equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NetAdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Additions</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisposalsAndRetirementsPropertyPlantAndEquipment" xlink:label="ifrs-full_DisposalsAndRetirementsPropertyPlantAndEquipment" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisposalsAndRetirementsPropertyPlantAndEquipment" xlink:to="ifrs-full_DisposalsAndRetirementsPropertyPlantAndEquipment_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisposalsAndRetirementsPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disposals and retirements, property, plant and equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_DisposalsAndRetirementsPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disposals and other</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment" xlink:to="ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (decrease) through transfers, property, plant and equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Transfers from/(to) other accounts</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment" xlink:to="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (decrease) through net exchange differences, property, plant and equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Exchange differences</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment" xlink:to="ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Acquisitions through business combinations, property, plant and equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Business combinations</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisposalsPropertyPlantAndEquipment" xlink:label="ifrs-full_DisposalsPropertyPlantAndEquipment" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisposalsPropertyPlantAndEquipment" xlink:to="ifrs-full_DisposalsPropertyPlantAndEquipment_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisposalsPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">DisposalsPropertyPlantAndEquipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="ifrs-full_DisposalsPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Business disposals</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_AdditionsToScopeOfConsolidationPropertyPlantAndEquipment" xlink:label="gsm_AdditionsToScopeOfConsolidationPropertyPlantAndEquipment" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_AdditionsToScopeOfConsolidationPropertyPlantAndEquipment" xlink:to="gsm_AdditionsToScopeOfConsolidationPropertyPlantAndEquipment_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_AdditionsToScopeOfConsolidationPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of additions to property, plant and equipment related to the scope of consolidation.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_AdditionsToScopeOfConsolidationPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Additions To Scope Of Consolidation Property Plant And Equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_AdditionsToScopeOfConsolidationPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Additions to the scope of consolidation</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment" xlink:label="ifrs-full_DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment" xlink:to="ifrs-full_DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Decrease through classified as held for sale, property, plant and equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Transfer from assets and disposal groups classified as held for sale</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossAbstract" xlink:label="ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossAbstract" xlink:to="ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of impairment loss and reversal of impairment loss [abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Impairment losses</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment" xlink:to="ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Impairment loss recognised in profit or loss, property, plant and equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Impairment charge related to Property, plant and equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Impairment of property, plant and equipment</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_PropertyPlantAndEquipmentPledgedAsSecurity" xlink:label="ifrs-full_PropertyPlantAndEquipmentPledgedAsSecurity" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PropertyPlantAndEquipmentPledgedAsSecurity" xlink:to="ifrs-full_PropertyPlantAndEquipmentPledgedAsSecurity_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PropertyPlantAndEquipmentPledgedAsSecurity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Property, plant and equipment, pledged as security</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_PropertyPlantAndEquipmentPledgedAsSecurity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Property, plant and equipment pledged as security for outstanding bank loans and other payables</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeTable" xlink:label="ifrs-full_DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeTable" xlink:to="ifrs-full_DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of recognised finance lease as assets by lessee [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ClassesOfAssetsAxis" xlink:label="ifrs-full_ClassesOfAssetsAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfAssetsAxis" xlink:to="ifrs-full_ClassesOfAssetsAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfAssetsAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Classes of assets [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ClassesOfAssetsMember" xlink:label="ifrs-full_ClassesOfAssetsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfAssetsMember" xlink:to="ifrs-full_ClassesOfAssetsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfAssetsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Classes Of Assets [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ClassesOfAssetsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Assets [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_HydroelectricalInstallationsMember" xlink:label="gsm_HydroelectricalInstallationsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_HydroelectricalInstallationsMember" xlink:to="gsm_HydroelectricalInstallationsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_HydroelectricalInstallationsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for hydroelectrical installations.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_HydroelectricalInstallationsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Hydroelectrical Installations [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_HydroelectricalInstallationsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Hydroelectrical Installations</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeLineItems" xlink:label="ifrs-full_DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeLineItems" xlink:to="ifrs-full_DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of recognised finance lease as assets by lessee [line items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeAbstract" xlink:label="ifrs-full_DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeAbstract" xlink:to="ifrs-full_DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfRecognisedFinanceLeaseAsAssetsByLesseeAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of recognised finance lease as assets by lessee [abstract]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IFRSLesseeFinanceLeaseTermOfContract" xlink:label="gsm_IFRSLesseeFinanceLeaseTermOfContract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IFRSLesseeFinanceLeaseTermOfContract" xlink:to="gsm_IFRSLesseeFinanceLeaseTermOfContract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IFRSLesseeFinanceLeaseTermOfContract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Term of lessee's finance lease.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IFRSLesseeFinanceLeaseTermOfContract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">IFRS Lessee, Finance Lease, Term Of Contract</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IFRSLesseeFinanceLeaseTermOfContract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Life</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_LesseeFinanceLeaseTimeElapsed" xlink:label="gsm_LesseeFinanceLeaseTimeElapsed" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_LesseeFinanceLeaseTimeElapsed" xlink:to="gsm_LesseeFinanceLeaseTimeElapsed_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_LesseeFinanceLeaseTimeElapsed_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Time elapsed in lessee's finance lease.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_LesseeFinanceLeaseTimeElapsed_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Lessee, Finance Lease, Time Elapsed</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_LesseeFinanceLeaseTimeElapsed_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Time Elapsed</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_RecognisedFinanceLeaseAsAssets" xlink:label="ifrs-full_RecognisedFinanceLeaseAsAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RecognisedFinanceLeaseAsAssets" xlink:to="ifrs-full_RecognisedFinanceLeaseAsAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RecognisedFinanceLeaseAsAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Recognised finance lease as assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_RecognisedFinanceLeaseAsAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Finance leases</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_FutureFinanceChargeOnFinanceLease" xlink:label="ifrs-full_FutureFinanceChargeOnFinanceLease" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FutureFinanceChargeOnFinanceLease" xlink:to="ifrs-full_FutureFinanceChargeOnFinanceLease_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FutureFinanceChargeOnFinanceLease_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Future finance charge on finance lease</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FutureFinanceChargeOnFinanceLease_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest Payable</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_MinimumFinanceLeasePaymentsPayable" xlink:label="ifrs-full_MinimumFinanceLeasePaymentsPayable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MinimumFinanceLeasePaymentsPayable" xlink:to="ifrs-full_MinimumFinanceLeasePaymentsPayable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MinimumFinanceLeasePaymentsPayable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Minimum finance lease payments payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_MinimumFinanceLeasePaymentsPayable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Lease Payments Outstanding</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfJointVenturesTable" xlink:label="ifrs-full_DisclosureOfJointVenturesTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfJointVenturesTable" xlink:to="ifrs-full_DisclosureOfJointVenturesTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfJointVenturesTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of joint ventures [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfJointVenturesLineItems" xlink:label="ifrs-full_DisclosureOfJointVenturesLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfJointVenturesLineItems" xlink:to="ifrs-full_DisclosureOfJointVenturesLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfJointVenturesLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of joint ventures [line items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfJointVenturesAbstract" xlink:label="ifrs-full_DisclosureOfJointVenturesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfJointVenturesAbstract" xlink:to="ifrs-full_DisclosureOfJointVenturesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfJointVenturesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of joint ventures [abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CapitalCommitments" xlink:label="ifrs-full_CapitalCommitments" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CapitalCommitments" xlink:to="ifrs-full_CapitalCommitments_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CapitalCommitments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Capital commitments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CapitalCommitments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Capital expenditure commitments</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfFinancialAssetsTable" xlink:label="ifrs-full_DisclosureOfFinancialAssetsTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinancialAssetsTable" xlink:to="ifrs-full_DisclosureOfFinancialAssetsTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinancialAssetsTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of financial assets [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:label="ifrs-full_DisclosureOfFinancialAssetsLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinancialAssetsLineItems" xlink:to="ifrs-full_DisclosureOfFinancialAssetsLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinancialAssetsLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of financial assets [line items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_FinancialAssets" xlink:label="ifrs-full_FinancialAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinancialAssets" xlink:to="ifrs-full_FinancialAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:label="ifrs-full_FinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial assets at end of period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:label="ifrs-full_FinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial assets at beginning of period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_FinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total financial assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherNoncurrentFinancialAssets" xlink:label="ifrs-full_OtherNoncurrentFinancialAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherNoncurrentFinancialAssets" xlink:to="ifrs-full_OtherNoncurrentFinancialAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherNoncurrentFinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other non-current financial assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherNoncurrentFinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other non-current financial assets held with third parties</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherCurrentFinancialAssets" xlink:label="ifrs-full_OtherCurrentFinancialAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherCurrentFinancialAssets" xlink:to="ifrs-full_OtherCurrentFinancialAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherCurrentFinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other current financial assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherCurrentFinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other current financial assets held with third parties</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherFinancialAssets" xlink:label="ifrs-full_OtherFinancialAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherFinancialAssets" xlink:to="ifrs-full_OtherFinancialAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherFinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other financial assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:label="ifrs-full_OtherFinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_OtherFinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other total financial assets held with third parties</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ImpairmentOnNonRecoverableLoansAndReceivables" xlink:label="gsm_ImpairmentOnNonRecoverableLoansAndReceivables" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ImpairmentOnNonRecoverableLoansAndReceivables" xlink:to="gsm_ImpairmentOnNonRecoverableLoansAndReceivables_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ImpairmentOnNonRecoverableLoansAndReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of impairment loss on non-recoverable loans and receivables.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ImpairmentOnNonRecoverableLoansAndReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Impairment on Non-recoverable Loans and Receivables</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ImpairmentOnNonRecoverableLoansAndReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Impairment on non-recoverable loans and receivables</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_InvestmentInSubordinatedLoanNotes" xlink:label="gsm_InvestmentInSubordinatedLoanNotes" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_InvestmentInSubordinatedLoanNotes" xlink:to="gsm_InvestmentInSubordinatedLoanNotes_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_InvestmentInSubordinatedLoanNotes_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the investment in subordinated loan notes.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_InvestmentInSubordinatedLoanNotes_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Investment In Subordinated Loan Notes</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_InvestmentInSubordinatedLoanNotes_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Investment in subordinated loan notes</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TradeAndOtherCurrentReceivablesAbstract" xlink:label="ifrs-full_TradeAndOtherCurrentReceivablesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherCurrentReceivablesAbstract" xlink:to="ifrs-full_TradeAndOtherCurrentReceivablesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherCurrentReceivablesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade and other current receivables [abstract]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CurrentTradeReceivablesGross" xlink:label="gsm_CurrentTradeReceivablesGross" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CurrentTradeReceivablesGross" xlink:to="gsm_CurrentTradeReceivablesGross_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CurrentTradeReceivablesGross_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of current trade receivables before deducting allowance for doubtful accounts.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CurrentTradeReceivablesGross_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current Trade Receivables, Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_CurrentTradeReceivablesGross_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade receivables</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AllowanceAccountForCreditLossesOfFinancialAssets" xlink:label="ifrs-full_AllowanceAccountForCreditLossesOfFinancialAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AllowanceAccountForCreditLossesOfFinancialAssets" xlink:to="ifrs-full_AllowanceAccountForCreditLossesOfFinancialAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AllowanceAccountForCreditLossesOfFinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Allowance account for credit losses of financial assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_AllowanceAccountForCreditLossesOfFinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Less &#x2013; allowance for doubtful debts</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentTradeReceivables" xlink:label="ifrs-full_CurrentTradeReceivables" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentTradeReceivables" xlink:to="ifrs-full_CurrentTradeReceivables_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentTradeReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current trade receivables</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_CurrentTradeReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade receivables, net</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentValueAddedTaxReceivables" xlink:label="ifrs-full_CurrentValueAddedTaxReceivables" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentValueAddedTaxReceivables" xlink:to="ifrs-full_CurrentValueAddedTaxReceivables_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentValueAddedTaxReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current value added tax receivables</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentValueAddedTaxReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tax receivables (1)</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CurrentGovernmentGrantReceivables" xlink:label="gsm_CurrentGovernmentGrantReceivables" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CurrentGovernmentGrantReceivables" xlink:to="gsm_CurrentGovernmentGrantReceivables_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CurrentGovernmentGrantReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of current trade receivables.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CurrentGovernmentGrantReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current Government Grant Receivables</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_CurrentGovernmentGrantReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Government grant receivables</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherCurrentReceivables" xlink:label="ifrs-full_OtherCurrentReceivables" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherCurrentReceivables" xlink:to="ifrs-full_OtherCurrentReceivables_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherCurrentReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other current receivables</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherCurrentReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other receivables</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossTable" xlink:label="ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossTable" xlink:to="ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of impairment loss and reversal of impairment loss [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossLineItems" xlink:label="ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossLineItems" xlink:to="ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfImpairmentLossAndReversalOfImpairmentLossLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of impairment loss and reversal of impairment loss [line items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ReconciliationOfChangesInAllowanceAccountForCreditLossesOfFinancialAssetsAbstract" xlink:label="ifrs-full_ReconciliationOfChangesInAllowanceAccountForCreditLossesOfFinancialAssetsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ReconciliationOfChangesInAllowanceAccountForCreditLossesOfFinancialAssetsAbstract" xlink:to="ifrs-full_ReconciliationOfChangesInAllowanceAccountForCreditLossesOfFinancialAssetsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ReconciliationOfChangesInAllowanceAccountForCreditLossesOfFinancialAssetsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Reconciliation of changes in allowance account for credit losses of financial assets [abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IncreaseDecreaseThroughTransfersFinancialAssets" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersFinancialAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughTransfersFinancialAssets" xlink:to="ifrs-full_IncreaseDecreaseThroughTransfersFinancialAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersFinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (decrease) through transfers, financial assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersFinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Impairment losses recognized (Note 25.3)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersFinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Change in impairment losses on uncollectible trade receivables (Note 10)</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DecreaseThroughWriteoffFinancialAssets" xlink:label="ifrs-full_DecreaseThroughWriteoffFinancialAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DecreaseThroughWriteoffFinancialAssets" xlink:to="ifrs-full_DecreaseThroughWriteoffFinancialAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DecreaseThroughWriteoffFinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Decrease through write-off, financial assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DecreaseThroughWriteoffFinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amounts written off as uncollectible</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IncreaseDecreaseThroughForeignExchangeFinancialAssets" xlink:label="ifrs-full_IncreaseDecreaseThroughForeignExchangeFinancialAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughForeignExchangeFinancialAssets" xlink:to="ifrs-full_IncreaseDecreaseThroughForeignExchangeFinancialAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughForeignExchangeFinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (decrease) through foreign exchange, financial assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughForeignExchangeFinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Exchange differences</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_RevenueFromGovernmentGrants" xlink:label="ifrs-full_RevenueFromGovernmentGrants" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RevenueFromGovernmentGrants" xlink:to="ifrs-full_RevenueFromGovernmentGrants_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RevenueFromGovernmentGrants_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Income from government grants</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ExpensesFromGovernmentGrants" xlink:label="gsm_ExpensesFromGovernmentGrants" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ExpensesFromGovernmentGrants" xlink:to="gsm_ExpensesFromGovernmentGrants_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ExpensesFromGovernmentGrants_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of expenses in relation to government grants.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ExpensesFromGovernmentGrants_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Expenses From Government Grants</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ExpensesFromGovernmentGrants_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Expense related to government grants</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_RevenueExpensesFromGovernmentGrants" xlink:label="gsm_RevenueExpensesFromGovernmentGrants" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_RevenueExpensesFromGovernmentGrants" xlink:to="gsm_RevenueExpensesFromGovernmentGrants_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_RevenueExpensesFromGovernmentGrants_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of net income (expenses) recognised in relation to government grants.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_RevenueExpensesFromGovernmentGrants_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Revenue (Expenses) From Government Grants</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_RevenueExpensesFromGovernmentGrants_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net income (loss) related to government grants</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CurrentFactoredReceivableAndSecuredBorrowings" xlink:label="gsm_CurrentFactoredReceivableAndSecuredBorrowings" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CurrentFactoredReceivableAndSecuredBorrowings" xlink:to="gsm_CurrentFactoredReceivableAndSecuredBorrowings_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CurrentFactoredReceivableAndSecuredBorrowings_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The carrying amount of factored receivables and the secured borrowings.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CurrentFactoredReceivableAndSecuredBorrowings_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current Factored Receivable and Secured Borrowings</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_CurrentFactoredReceivableAndSecuredBorrowings_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Carrying amount of factored receivables and the secured borrowings</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsAbstract" xlink:label="ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsAbstract" xlink:to="ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of continuing involvement in derecognised financial assets [abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsTable" xlink:label="ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsTable" xlink:to="ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of continuing involvement in derecognised financial assets [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfInstrumentAxis" xlink:label="ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfInstrumentAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfInstrumentAxis" xlink:to="ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfInstrumentAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfInstrumentAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Continuing involvement in derecognised financial assets by type of instrument [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TypesOfInstrumentMember" xlink:label="ifrs-full_TypesOfInstrumentMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TypesOfInstrumentMember" xlink:to="ifrs-full_TypesOfInstrumentMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TypesOfInstrumentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Types Of Instrument [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TypesOfInstrumentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Types of instrument [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_SeniorSubordinatedLoanMember" xlink:label="gsm_SeniorSubordinatedLoanMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_SeniorSubordinatedLoanMember" xlink:to="gsm_SeniorSubordinatedLoanMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_SeniorSubordinatedLoanMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for senior subordinated loans.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_SeniorSubordinatedLoanMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Senior Subordinated Loan [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_SeniorSubordinatedLoanMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Senior Subordinated Loan</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_JuniorSubordinatedLoanMember" xlink:label="gsm_JuniorSubordinatedLoanMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_JuniorSubordinatedLoanMember" xlink:to="gsm_JuniorSubordinatedLoanMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_JuniorSubordinatedLoanMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for junior subordinated loans.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_JuniorSubordinatedLoanMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Junior Subordinated Loan [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_JuniorSubordinatedLoanMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Junior Subordinated Loan</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfTransferAxis" xlink:label="ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfTransferAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfTransferAxis" xlink:to="ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfTransferAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfTransferAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Continuing involvement in derecognised financial assets by type of transfer [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TypesOfTransferMember" xlink:label="ifrs-full_TypesOfTransferMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TypesOfTransferMember" xlink:to="ifrs-full_TypesOfTransferMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TypesOfTransferMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Types Of Transfer [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TypesOfTransferMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Types of transfer [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_SecuritisationsMember" xlink:label="ifrs-full_SecuritisationsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_SecuritisationsMember" xlink:to="ifrs-full_SecuritisationsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_SecuritisationsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Securitisations [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_SecuritisationsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Securitizations</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_FactoringOfReceivablesMember" xlink:label="ifrs-full_FactoringOfReceivablesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FactoringOfReceivablesMember" xlink:to="ifrs-full_FactoringOfReceivablesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FactoringOfReceivablesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Factoring Of Receivables [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FactoringOfReceivablesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Factoring of receivables</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsLineItems" xlink:label="ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsLineItems" xlink:to="ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of continuing involvement in derecognised financial assets [line items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfContinuingInvolvementInDerecognisedFinancialAssetsLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Securitization of trade receivables</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_UpfrontCashConsideration" xlink:label="gsm_UpfrontCashConsideration" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_UpfrontCashConsideration" xlink:to="gsm_UpfrontCashConsideration_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_UpfrontCashConsideration_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of upfront cash consideration provided or to be provided by the special purpose designated activity company (SPE) .</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_UpfrontCashConsideration_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Upfront Cash Consideration</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_UpfrontCashConsideration_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Upfront cash consideration</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TermOfSecuritizationProgram" xlink:label="gsm_TermOfSecuritizationProgram" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TermOfSecuritizationProgram" xlink:to="gsm_TermOfSecuritizationProgram_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TermOfSecuritizationProgram_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the length of the securitization program.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TermOfSecuritizationProgram_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Term Of Securitization Program</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_TermOfSecuritizationProgram_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Term of the securitization program</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TradeReceivablesSoldUnderSecuritizationProgram" xlink:label="gsm_TradeReceivablesSoldUnderSecuritizationProgram" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TradeReceivablesSoldUnderSecuritizationProgram" xlink:to="gsm_TradeReceivablesSoldUnderSecuritizationProgram_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TradeReceivablesSoldUnderSecuritizationProgram_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of trade receivables sold under the securitization program to the SPE.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TradeReceivablesSoldUnderSecuritizationProgram_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade Receivables Sold Under Securitization Program</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_TradeReceivablesSoldUnderSecuritizationProgram_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade receivables sold under securitization program</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_GainLossOfDerecognisedFinancialAssetsAtDateOfTransfer" xlink:label="ifrs-full_GainLossOfDerecognisedFinancialAssetsAtDateOfTransfer" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainLossOfDerecognisedFinancialAssetsAtDateOfTransfer" xlink:to="ifrs-full_GainLossOfDerecognisedFinancialAssetsAtDateOfTransfer_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainLossOfDerecognisedFinancialAssetsAtDateOfTransfer_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gain (loss) of derecognised financial assets at date of transfer</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GainLossOfDerecognisedFinancialAssetsAtDateOfTransfer_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Loss on transferral of trade receivables</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_InterestIncomeOnLoansAndReceivables" xlink:label="ifrs-full_InterestIncomeOnLoansAndReceivables" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestIncomeOnLoansAndReceivables" xlink:to="ifrs-full_InterestIncomeOnLoansAndReceivables_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InterestIncomeOnLoansAndReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest income on loans and receivables</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InterestIncomeOnLoansAndReceivables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest earned on SPE loans</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FixedServicingFeesEarned" xlink:label="gsm_FixedServicingFeesEarned" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FixedServicingFeesEarned" xlink:to="gsm_FixedServicingFeesEarned_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FixedServicingFeesEarned_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the amount of fixed-rate servicing fees earned.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FixedServicingFeesEarned_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Fixed Servicing Fees Earned</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FixedServicingFeesEarned_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Fixed-rate servicing fees</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_VariableServicingFeesEarned" xlink:label="gsm_VariableServicingFeesEarned" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_VariableServicingFeesEarned" xlink:to="gsm_VariableServicingFeesEarned_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_VariableServicingFeesEarned_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the amount of additional servicing fees earned.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_VariableServicingFeesEarned_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Variable Servicing Fees Earned</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_VariableServicingFeesEarned_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Additional servicing fees earned</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_RecognisedAssetsRepresentingContinuingInvolvementInDerecognisedFinancialAssets" xlink:label="ifrs-full_RecognisedAssetsRepresentingContinuingInvolvementInDerecognisedFinancialAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RecognisedAssetsRepresentingContinuingInvolvementInDerecognisedFinancialAssets" xlink:to="ifrs-full_RecognisedAssetsRepresentingContinuingInvolvementInDerecognisedFinancialAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RecognisedAssetsRepresentingContinuingInvolvementInDerecognisedFinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Recognised assets representing continuing involvement in derecognised financial assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:label="ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss" xlink:to="ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-current financial assets at fair value through profit or loss</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_InterestRateSignificantUnobservableInputsAssets" xlink:label="ifrs-full_InterestRateSignificantUnobservableInputsAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestRateSignificantUnobservableInputsAssets" xlink:to="ifrs-full_InterestRateSignificantUnobservableInputsAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InterestRateSignificantUnobservableInputsAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest rate, significant unobservable inputs, assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InterestRateSignificantUnobservableInputsAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest Rate</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_MaximumInvestmentCommitmentByIntermediateSubordinatedLender" xlink:label="gsm_MaximumInvestmentCommitmentByIntermediateSubordinatedLender" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_MaximumInvestmentCommitmentByIntermediateSubordinatedLender" xlink:to="gsm_MaximumInvestmentCommitmentByIntermediateSubordinatedLender_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_MaximumInvestmentCommitmentByIntermediateSubordinatedLender_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The maximum amount of investment committed to by the intermediate subordinated lender.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_MaximumInvestmentCommitmentByIntermediateSubordinatedLender_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Maximum Investment Commitment By Intermediate Subordinated Lender</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_MaximumInvestmentCommitmentByIntermediateSubordinatedLender_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Maximum commitment by Finacity Capital Management</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CurrentFactoredReceivable" xlink:label="gsm_CurrentFactoredReceivable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CurrentFactoredReceivable" xlink:to="gsm_CurrentFactoredReceivable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CurrentFactoredReceivable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the amount of current factored receivable.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CurrentFactoredReceivable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current Factored Receivable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_CurrentFactoredReceivable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Factored receivable</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_FinishedGoods" xlink:label="ifrs-full_FinishedGoods" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinishedGoods" xlink:to="ifrs-full_FinishedGoods_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinishedGoods_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current finished goods</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FinishedGoods_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Finished goods</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_WorkInProgress" xlink:label="ifrs-full_WorkInProgress" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WorkInProgress" xlink:to="ifrs-full_WorkInProgress_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_WorkInProgress_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current work in progress</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_WorkInProgress_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Raw materials in progress and industrial supplies</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherInventories" xlink:label="ifrs-full_OtherInventories" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherInventories" xlink:to="ifrs-full_OtherInventories_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherInventories_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other current inventories</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherInventories_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other inventories</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentAdvancesToSuppliers" xlink:label="ifrs-full_CurrentAdvancesToSuppliers" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentAdvancesToSuppliers" xlink:to="ifrs-full_CurrentAdvancesToSuppliers_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentAdvancesToSuppliers_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Advances to suppliers</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_WritedownsReversalsOfWritedownsOfInventoriesAbstract" xlink:label="ifrs-full_WritedownsReversalsOfWritedownsOfInventoriesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WritedownsReversalsOfWritedownsOfInventoriesAbstract" xlink:to="ifrs-full_WritedownsReversalsOfWritedownsOfInventoriesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_WritedownsReversalsOfWritedownsOfInventoriesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Write-downs (reversals of write-downs) of inventories [abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_InventoryWritedown2011" xlink:label="ifrs-full_InventoryWritedown2011" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InventoryWritedown2011" xlink:to="ifrs-full_InventoryWritedown2011_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InventoryWritedown2011_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Inventory write-down</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PurchaseCommitmentsAndCollateralAbstract" xlink:label="gsm_PurchaseCommitmentsAndCollateralAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PurchaseCommitmentsAndCollateralAbstract" xlink:to="gsm_PurchaseCommitmentsAndCollateralAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PurchaseCommitmentsAndCollateralAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PurchaseCommitmentsAndCollateralAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Purchase Commitments And Collateral [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_InventoriesPledgedAsSecurityForLiabilities" xlink:label="ifrs-full_InventoriesPledgedAsSecurityForLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InventoriesPledgedAsSecurityForLiabilities" xlink:to="ifrs-full_InventoriesPledgedAsSecurityForLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InventoriesPledgedAsSecurityForLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Inventories pledged as security for liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InventoriesPledgedAsSecurityForLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Inventories secured</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfContingentLiabilitiesTable" xlink:label="ifrs-full_DisclosureOfContingentLiabilitiesTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfContingentLiabilitiesTable" xlink:to="ifrs-full_DisclosureOfContingentLiabilitiesTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfContingentLiabilitiesTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of contingent liabilities [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfContingentLiabilitiesLineItems" xlink:label="ifrs-full_DisclosureOfContingentLiabilitiesLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfContingentLiabilitiesLineItems" xlink:to="ifrs-full_DisclosureOfContingentLiabilitiesLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfContingentLiabilitiesLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of contingent liabilities [line items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfContingentLiabilitiesLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Guarantee commitments to third parties and other contingent assets and liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfContingentLiabilitiesLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other assets</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NoncurrentGuaranteesAndNoncurrentDeposits" xlink:label="gsm_NoncurrentGuaranteesAndNoncurrentDeposits" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NoncurrentGuaranteesAndNoncurrentDeposits" xlink:to="gsm_NoncurrentGuaranteesAndNoncurrentDeposits_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NoncurrentGuaranteesAndNoncurrentDeposits_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of non-current guarantees and noncurrent deposits.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NoncurrentGuaranteesAndNoncurrentDeposits_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Noncurrent guarantees and noncurrent deposits</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NoncurrentGuaranteesAndNoncurrentDeposits_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Guarantees and deposits given - Non-Current</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CurrentGuaranteesAndCurrentDeposits" xlink:label="gsm_CurrentGuaranteesAndCurrentDeposits" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CurrentGuaranteesAndCurrentDeposits" xlink:to="gsm_CurrentGuaranteesAndCurrentDeposits_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CurrentGuaranteesAndCurrentDeposits_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of current guarantees and current deposits.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CurrentGuaranteesAndCurrentDeposits_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current guarantees and current deposits</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_CurrentGuaranteesAndCurrentDeposits_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Guarantees and deposits given - Current</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GuaranteesAndDeposits" xlink:label="gsm_GuaranteesAndDeposits" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GuaranteesAndDeposits" xlink:to="gsm_GuaranteesAndDeposits_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GuaranteesAndDeposits_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of guarantees and deposits.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GuaranteesAndDeposits_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Guarantees and deposits</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gsm_GuaranteesAndDeposits_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Guarantees and deposits given - Total</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NoncurrentPrepaymentsAndNoncurrentAccruedIncome" xlink:label="ifrs-full_NoncurrentPrepaymentsAndNoncurrentAccruedIncome" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentPrepaymentsAndNoncurrentAccruedIncome" xlink:to="ifrs-full_NoncurrentPrepaymentsAndNoncurrentAccruedIncome_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentPrepaymentsAndNoncurrentAccruedIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-current prepayments and non-current accrued income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NoncurrentPrepaymentsAndNoncurrentAccruedIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Prepayments and accrued income - Non-Current</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentPrepaymentsAndCurrentAccruedIncome" xlink:label="ifrs-full_CurrentPrepaymentsAndCurrentAccruedIncome" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentPrepaymentsAndCurrentAccruedIncome" xlink:to="ifrs-full_CurrentPrepaymentsAndCurrentAccruedIncome_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentPrepaymentsAndCurrentAccruedIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current prepayments and current accrued income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentPrepaymentsAndCurrentAccruedIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Prepayments and accrued income - Current</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_PrepaymentsAndAccruedIncome" xlink:label="ifrs-full_PrepaymentsAndAccruedIncome" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PrepaymentsAndAccruedIncome" xlink:to="ifrs-full_PrepaymentsAndAccruedIncome_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PrepaymentsAndAccruedIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Prepayments and accrued income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_PrepaymentsAndAccruedIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Prepayments and accrued income - Total</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NoncurrentBiologicalAssets" xlink:label="ifrs-full_NoncurrentBiologicalAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentBiologicalAssets" xlink:to="ifrs-full_NoncurrentBiologicalAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentBiologicalAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-current biological assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NoncurrentBiologicalAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Biological assets - Non-Current</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_BiologicalAssets" xlink:label="ifrs-full_BiologicalAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BiologicalAssets" xlink:to="ifrs-full_BiologicalAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BiologicalAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Biological assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_BiologicalAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Biological assets - Total</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_MiscellaneousOtherNoncurrentAssets" xlink:label="gsm_MiscellaneousOtherNoncurrentAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_MiscellaneousOtherNoncurrentAssets" xlink:to="gsm_MiscellaneousOtherNoncurrentAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_MiscellaneousOtherNoncurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of miscellaneous other noncurrent assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_MiscellaneousOtherNoncurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Miscellaneous other noncurrent assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_MiscellaneousOtherNoncurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other assets - Non-Current</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_MiscellaneousOtherCurrentAssets" xlink:label="gsm_MiscellaneousOtherCurrentAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_MiscellaneousOtherCurrentAssets" xlink:to="gsm_MiscellaneousOtherCurrentAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_MiscellaneousOtherCurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of miscellaneous other current assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_MiscellaneousOtherCurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Miscellaneous other current assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_MiscellaneousOtherCurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other assets - Current</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_MiscellaneousOtherAssets" xlink:label="gsm_MiscellaneousOtherAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_MiscellaneousOtherAssets" xlink:to="gsm_MiscellaneousOtherAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_MiscellaneousOtherAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of miscellaneous other assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_MiscellaneousOtherAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Miscellaneous other assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gsm_MiscellaneousOtherAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other assets - Total</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherAssets" xlink:label="ifrs-full_OtherAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherAssets" xlink:to="ifrs-full_OtherAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_OtherAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfClassesOfShareCapitalTable" xlink:label="ifrs-full_DisclosureOfClassesOfShareCapitalTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalTable" xlink:to="ifrs-full_DisclosureOfClassesOfShareCapitalTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfClassesOfShareCapitalTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of classes of share capital [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:label="ifrs-full_CategoriesOfRelatedPartiesAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CategoriesOfRelatedPartiesAxis" xlink:to="ifrs-full_CategoriesOfRelatedPartiesAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CategoriesOfRelatedPartiesAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Categories of related parties [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_EntitysTotalForRelatedPartiesMember" xlink:label="ifrs-full_EntitysTotalForRelatedPartiesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EntitysTotalForRelatedPartiesMember" xlink:to="ifrs-full_EntitysTotalForRelatedPartiesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EntitysTotalForRelatedPartiesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Entitys Total For Related Parties [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_EntitysTotalForRelatedPartiesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Entity's total for related parties [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GrupoVillarMirSauMember" xlink:label="gsm_GrupoVillarMirSauMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GrupoVillarMirSauMember" xlink:to="gsm_GrupoVillarMirSauMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GrupoVillarMirSauMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Grupo Villar Mir S.A.U. Former parent of the entity.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GrupoVillarMirSauMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grupo Villar Mir Sau [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GrupoVillarMirSauMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grupo Villar Mir SAU [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ClassesOfShareCapitalAxis" xlink:label="ifrs-full_ClassesOfShareCapitalAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfShareCapitalAxis" xlink:to="ifrs-full_ClassesOfShareCapitalAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfShareCapitalAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Classes of share capital [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ClassesOfShareCapitalMember" xlink:label="ifrs-full_ClassesOfShareCapitalMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfShareCapitalMember" xlink:to="ifrs-full_ClassesOfShareCapitalMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfShareCapitalMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Classes Of Share Capital [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ClassesOfShareCapitalMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Share capital [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OrdinarySharesMember" xlink:label="ifrs-full_OrdinarySharesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OrdinarySharesMember" xlink:to="ifrs-full_OrdinarySharesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OrdinarySharesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ordinary Shares [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OrdinarySharesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ordinary shares [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ClassMember" xlink:label="gsm_ClassMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ClassMember" xlink:to="gsm_ClassMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ClassMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Class A ordinary shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ClassMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Class [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ClassMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Class A</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_PreferenceSharesMember" xlink:label="ifrs-full_PreferenceSharesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PreferenceSharesMember" xlink:to="ifrs-full_PreferenceSharesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PreferenceSharesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Preference Shares [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_PreferenceSharesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Preference shares [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GrupoFerroatlanticaSauMember" xlink:label="gsm_GrupoFerroatlanticaSauMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GrupoFerroatlanticaSauMember" xlink:to="gsm_GrupoFerroatlanticaSauMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GrupoFerroatlanticaSauMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Grupo FerroAtlantica S.A.U.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GrupoFerroatlanticaSauMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grupo Ferroatlantica Sau [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GrupoFerroatlanticaSauMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grupo FerroAtlantica S.A.U. [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:label="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems" xlink:to="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfClassesOfShareCapitalLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of classes of share capital [line items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ParValuePerShare" xlink:label="ifrs-full_ParValuePerShare" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ParValuePerShare" xlink:to="ifrs-full_ParValuePerShare_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ParValuePerShare_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Par value per share</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfConsolidatedShares" xlink:label="gsm_NumberOfConsolidatedShares" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberOfConsolidatedShares" xlink:to="gsm_NumberOfConsolidatedShares_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfConsolidatedShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The number of shares consolidated by the entity.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfConsolidatedShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number Of Consolidated Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NumberOfConsolidatedShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Shares consolidated</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NewSharesIssuedAfterConsolidation" xlink:label="gsm_NewSharesIssuedAfterConsolidation" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NewSharesIssuedAfterConsolidation" xlink:to="gsm_NewSharesIssuedAfterConsolidation_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NewSharesIssuedAfterConsolidation_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The number of new shares issued after consolidation.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NewSharesIssuedAfterConsolidation_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">New Shares Issued After Consolidation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NewSharesIssuedAfterConsolidation_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">New shares issued after consolidation</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NumberOfSharesOutstanding" xlink:label="ifrs-full_NumberOfSharesOutstanding" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfSharesOutstanding" xlink:to="ifrs-full_NumberOfSharesOutstanding_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NumberOfSharesOutstanding_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of shares outstanding</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfSharesOutstandingIncludingTreasuryShares" xlink:label="gsm_NumberOfSharesOutstandingIncludingTreasuryShares" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberOfSharesOutstandingIncludingTreasuryShares" xlink:to="gsm_NumberOfSharesOutstandingIncludingTreasuryShares_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfSharesOutstandingIncludingTreasuryShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of shares outstanding, including treasury shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfSharesOutstandingIncludingTreasuryShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of shares outstanding, including treasury shares</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TreasuryShares" xlink:label="ifrs-full_TreasuryShares" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TreasuryShares" xlink:to="ifrs-full_TreasuryShares_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TreasuryShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Treasury shares</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IncreaseDecreaseInNumberOfOrdinarySharesIssued" xlink:label="ifrs-full_IncreaseDecreaseInNumberOfOrdinarySharesIssued" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseInNumberOfOrdinarySharesIssued" xlink:to="ifrs-full_IncreaseDecreaseInNumberOfOrdinarySharesIssued_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseInNumberOfOrdinarySharesIssued_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (decrease) in number of ordinary shares issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseInNumberOfOrdinarySharesIssued_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of ordinary shares issued</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfSharesIssuedUponVestingRestrictedStockUnits" xlink:label="gsm_NumberOfSharesIssuedUponVestingRestrictedStockUnits" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberOfSharesIssuedUponVestingRestrictedStockUnits" xlink:to="gsm_NumberOfSharesIssuedUponVestingRestrictedStockUnits_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfSharesIssuedUponVestingRestrictedStockUnits_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The number of shares issued upon the vesting of restricted stock units.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfSharesIssuedUponVestingRestrictedStockUnits_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number Of Shares Issued Upon Vesting Restricted Stock Units</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NumberOfSharesIssuedUponVestingRestrictedStockUnits_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of shares issued at vesting of restricted stock units</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement" xlink:label="ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement" xlink:to="ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of share options exercised in share-based payment arrangement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Share options exercised</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_NumberOfShareOptionsExercisedInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Exercised during the period</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberSharesBeneficiallyOwned" xlink:label="gsm_NumberSharesBeneficiallyOwned" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberSharesBeneficiallyOwned" xlink:to="gsm_NumberSharesBeneficiallyOwned_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberSharesBeneficiallyOwned_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The number of beneficially shares owned by main shareholders.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberSharesBeneficiallyOwned_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number Shares Beneficially Owned</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NumberSharesBeneficiallyOwned_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The number of beneficially shares owned</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ActuarialGainLossValuationAdjustment" xlink:label="gsm_ActuarialGainLossValuationAdjustment" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ActuarialGainLossValuationAdjustment" xlink:to="gsm_ActuarialGainLossValuationAdjustment_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ActuarialGainLossValuationAdjustment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of actuarial gains and losses.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ActuarialGainLossValuationAdjustment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Actuarial Gain Loss Valuation Adjustment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ActuarialGainLossValuationAdjustment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Actuarial gains and losses</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_HedgingInstrumentAndOtherValuationAdjustment" xlink:label="gsm_HedgingInstrumentAndOtherValuationAdjustment" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_HedgingInstrumentAndOtherValuationAdjustment" xlink:to="gsm_HedgingInstrumentAndOtherValuationAdjustment_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_HedgingInstrumentAndOtherValuationAdjustment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount valuation adjustments for hedging instruments and other.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_HedgingInstrumentAndOtherValuationAdjustment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Hedging Instrument And Other Valuation Adjustment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_HedgingInstrumentAndOtherValuationAdjustment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Hedging instruments and other</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ContinuingAndDiscontinuedOperationsAxis" xlink:label="ifrs-full_ContinuingAndDiscontinuedOperationsAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ContinuingAndDiscontinuedOperationsAxis" xlink:to="ifrs-full_ContinuingAndDiscontinuedOperationsAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ContinuingAndDiscontinuedOperationsAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Continuing and discontinued operations [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ContinuingOperationsMember" xlink:label="ifrs-full_ContinuingOperationsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ContinuingOperationsMember" xlink:to="ifrs-full_ContinuingOperationsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ContinuingOperationsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Continuing Operations [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ContinuingOperationsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Continuing operations</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_SpanishEnergyBusinessDisposalGroupDiscontinuedOperationsMember" xlink:label="gsm_SpanishEnergyBusinessDisposalGroupDiscontinuedOperationsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_SpanishEnergyBusinessDisposalGroupDiscontinuedOperationsMember" xlink:to="gsm_SpanishEnergyBusinessDisposalGroupDiscontinuedOperationsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_SpanishEnergyBusinessDisposalGroupDiscontinuedOperationsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Spanish energy business which was classified as held for sale.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_SpanishEnergyBusinessDisposalGroupDiscontinuedOperationsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Spanish Energy Business Disposal Group Discontinued Operations [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_SpanishEnergyBusinessDisposalGroupDiscontinuedOperationsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Spanish energy business classified as held for sale</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GrossFinancialDebt" xlink:label="gsm_GrossFinancialDebt" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GrossFinancialDebt" xlink:to="gsm_GrossFinancialDebt_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GrossFinancialDebt_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of gross financial debt, current and noncurrent.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GrossFinancialDebt_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gross Financial Debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GrossFinancialDebt_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gross financial debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gsm_GrossFinancialDebt_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gross financial debt</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CashAndCashEquivalentsFromDiscontinuedOperations" xlink:label="gsm_CashAndCashEquivalentsFromDiscontinuedOperations" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CashAndCashEquivalentsFromDiscontinuedOperations" xlink:to="gsm_CashAndCashEquivalentsFromDiscontinuedOperations_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CashAndCashEquivalentsFromDiscontinuedOperations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of cash from discontinued operations on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CashAndCashEquivalentsFromDiscontinuedOperations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash And Cash Equivalents From Discontinued Operations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="gsm_CashAndCashEquivalentsFromDiscontinuedOperations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash and cash equivalents</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NetFinancialDebt" xlink:label="gsm_NetFinancialDebt" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NetFinancialDebt" xlink:to="gsm_NetFinancialDebt_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NetFinancialDebt_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount net financial debt, current and noncurrent.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NetFinancialDebt_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net Financial Debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gsm_NetFinancialDebt_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net financial debt</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NetFinancialDebtIncludingDiscontinuedOperations" xlink:label="gsm_NetFinancialDebtIncludingDiscontinuedOperations" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NetFinancialDebtIncludingDiscontinuedOperations" xlink:to="gsm_NetFinancialDebtIncludingDiscontinuedOperations_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NetFinancialDebtIncludingDiscontinuedOperations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount net financial debt, current and noncurrent including discontinued operations.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NetFinancialDebtIncludingDiscontinuedOperations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net Financial Debt Including Discontinued Operations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NetFinancialDebtIncludingDiscontinuedOperations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net financial debt, including discontinued operations</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PercentageNetFinancialDebtToConsolidatedEquity" xlink:label="gsm_PercentageNetFinancialDebtToConsolidatedEquity" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PercentageNetFinancialDebtToConsolidatedEquity" xlink:to="gsm_PercentageNetFinancialDebtToConsolidatedEquity_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PercentageNetFinancialDebtToConsolidatedEquity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The percentage of net financial debt to consolidated equity.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PercentageNetFinancialDebtToConsolidatedEquity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage Net Financial Debt To Consolidated Equity</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PercentageNetFinancialDebtToConsolidatedEquity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net financial debt/Consolidated equity</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PercentageNetFinancialDebtToConsolidatedEquityIncludingDiscontinuedOperations" xlink:label="gsm_PercentageNetFinancialDebtToConsolidatedEquityIncludingDiscontinuedOperations" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PercentageNetFinancialDebtToConsolidatedEquityIncludingDiscontinuedOperations" xlink:to="gsm_PercentageNetFinancialDebtToConsolidatedEquityIncludingDiscontinuedOperations_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PercentageNetFinancialDebtToConsolidatedEquityIncludingDiscontinuedOperations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The percentage of net financial debt to consolidated equity including discontinued operations.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PercentageNetFinancialDebtToConsolidatedEquityIncludingDiscontinuedOperations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage Net Financial Debt To Consolidated Equity Including Discontinued Operations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PercentageNetFinancialDebtToConsolidatedEquityIncludingDiscontinuedOperations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net financial debt/Consolidated equity, including discontinued operations</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NonCurrentGrossFinancialDebt" xlink:label="gsm_NonCurrentGrossFinancialDebt" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NonCurrentGrossFinancialDebt" xlink:to="gsm_NonCurrentGrossFinancialDebt_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NonCurrentGrossFinancialDebt_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of noncurrent gross financial debt.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NonCurrentGrossFinancialDebt_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non Current Gross Financial Debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NonCurrentGrossFinancialDebt_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-current gross financial debt</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CurrentGrossFinancialDebt" xlink:label="gsm_CurrentGrossFinancialDebt" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CurrentGrossFinancialDebt" xlink:to="gsm_CurrentGrossFinancialDebt_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CurrentGrossFinancialDebt_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of current gross financial debt.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CurrentGrossFinancialDebt_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current Gross Financial Debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_CurrentGrossFinancialDebt_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current gross financial debt</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PercentageNonCurrentGrossFinancialDebtToTotalGrossFinancialDebt" xlink:label="gsm_PercentageNonCurrentGrossFinancialDebtToTotalGrossFinancialDebt" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PercentageNonCurrentGrossFinancialDebtToTotalGrossFinancialDebt" xlink:to="gsm_PercentageNonCurrentGrossFinancialDebtToTotalGrossFinancialDebt_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PercentageNonCurrentGrossFinancialDebtToTotalGrossFinancialDebt_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The percentage of non-current gross financial debt to total gross financial debt.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PercentageNonCurrentGrossFinancialDebtToTotalGrossFinancialDebt_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage Non Current Gross Financial Debt To Total Gross Financial Debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PercentageNonCurrentGrossFinancialDebtToTotalGrossFinancialDebt_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-current gross financial debt to total gross financial debt (as a percentage)</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PercentageCurrentGrossFinancialDebtToTotalGrossFinancialDebt" xlink:label="gsm_PercentageCurrentGrossFinancialDebtToTotalGrossFinancialDebt" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PercentageCurrentGrossFinancialDebtToTotalGrossFinancialDebt" xlink:to="gsm_PercentageCurrentGrossFinancialDebtToTotalGrossFinancialDebt_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PercentageCurrentGrossFinancialDebtToTotalGrossFinancialDebt_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The percentage of current gross financial debt to total gross financial debt.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PercentageCurrentGrossFinancialDebtToTotalGrossFinancialDebt_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage Current Gross Financial Debt To Total Gross Financial Debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PercentageCurrentGrossFinancialDebtToTotalGrossFinancialDebt_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current gross financial debt to total gross financial debt (as a percentage)</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PercentageTotalGrossFinancialDebt" xlink:label="gsm_PercentageTotalGrossFinancialDebt" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PercentageTotalGrossFinancialDebt" xlink:to="gsm_PercentageTotalGrossFinancialDebt_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PercentageTotalGrossFinancialDebt_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The percentage of total gross financial debt.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PercentageTotalGrossFinancialDebt_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage Total Gross Financial Debt</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gsm_PercentageTotalGrossFinancialDebt_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gross financial debt (as a percentage)</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GrossFinancialDebtIncludingDiscontinuedOperations" xlink:label="gsm_GrossFinancialDebtIncludingDiscontinuedOperations" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GrossFinancialDebtIncludingDiscontinuedOperations" xlink:to="gsm_GrossFinancialDebtIncludingDiscontinuedOperations_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GrossFinancialDebtIncludingDiscontinuedOperations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of gross financial debt, current and noncurrent, including discontinued operations.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GrossFinancialDebtIncludingDiscontinuedOperations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gross Financial Debt Including Discontinued Operations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GrossFinancialDebtIncludingDiscontinuedOperations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gross financial debt, including discontinued operations</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PeriodOfContractWithBrokersToPurchaseItsOrdinaryShares" xlink:label="gsm_PeriodOfContractWithBrokersToPurchaseItsOrdinaryShares" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PeriodOfContractWithBrokersToPurchaseItsOrdinaryShares" xlink:to="gsm_PeriodOfContractWithBrokersToPurchaseItsOrdinaryShares_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PeriodOfContractWithBrokersToPurchaseItsOrdinaryShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Period of contract with brokers to purchase its ordinary shares.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PeriodOfContractWithBrokersToPurchaseItsOrdinaryShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Period of Contract with Brokers to Purchase its Ordinary Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PeriodOfContractWithBrokersToPurchaseItsOrdinaryShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Period of contract with brokers to purchase its ordinary shares</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_MaximumPercentageOfIssuedOrdinarySharesAcquiredByBrokers" xlink:label="gsm_MaximumPercentageOfIssuedOrdinarySharesAcquiredByBrokers" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_MaximumPercentageOfIssuedOrdinarySharesAcquiredByBrokers" xlink:to="gsm_MaximumPercentageOfIssuedOrdinarySharesAcquiredByBrokers_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_MaximumPercentageOfIssuedOrdinarySharesAcquiredByBrokers_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Maximum percentage of issued ordinary shared acquired by brokers.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_MaximumPercentageOfIssuedOrdinarySharesAcquiredByBrokers_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Maximum Percentage of Issued Ordinary Shares Acquired by Brokers</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_MaximumPercentageOfIssuedOrdinarySharesAcquiredByBrokers_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Maximum percentage of issued ordinary shared acquired by brokers</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_MinimumSharePrice" xlink:label="gsm_MinimumSharePrice" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_MinimumSharePrice" xlink:to="gsm_MinimumSharePrice_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_MinimumSharePrice_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Minimum share price.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_MinimumSharePrice_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Minimum Share Price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_MinimumSharePrice_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Minimum share price</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_MaximumPriceAsPercentageAboveAverageVolumeWeightedAveragePrice" xlink:label="gsm_MaximumPriceAsPercentageAboveAverageVolumeWeightedAveragePrice" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_MaximumPriceAsPercentageAboveAverageVolumeWeightedAveragePrice" xlink:to="gsm_MaximumPriceAsPercentageAboveAverageVolumeWeightedAveragePrice_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_MaximumPriceAsPercentageAboveAverageVolumeWeightedAveragePrice_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Maximum price as percentage above average volume weighted average price.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_MaximumPriceAsPercentageAboveAverageVolumeWeightedAveragePrice_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Maximum Price as Percentage Above Average Volume Weighted Average Price</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_MaximumPriceAsPercentageAboveAverageVolumeWeightedAveragePrice_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Maximum price as percentage above average volume weighted average price</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfBusinessDaysPriorToPurchaseUsedToCalculateAverageVolumeWeightedAveragePrice" xlink:label="gsm_NumberOfBusinessDaysPriorToPurchaseUsedToCalculateAverageVolumeWeightedAveragePrice" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberOfBusinessDaysPriorToPurchaseUsedToCalculateAverageVolumeWeightedAveragePrice" xlink:to="gsm_NumberOfBusinessDaysPriorToPurchaseUsedToCalculateAverageVolumeWeightedAveragePrice_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfBusinessDaysPriorToPurchaseUsedToCalculateAverageVolumeWeightedAveragePrice_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of business days prior to purchase used to calculate average volume weighted average price.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfBusinessDaysPriorToPurchaseUsedToCalculateAverageVolumeWeightedAveragePrice_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of business days prior to purchase used to calculate average volume weighted average price</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ShareRepurchaseProgrammeAuthorisedAmount" xlink:label="gsm_ShareRepurchaseProgrammeAuthorisedAmount" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ShareRepurchaseProgrammeAuthorisedAmount" xlink:to="gsm_ShareRepurchaseProgrammeAuthorisedAmount_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ShareRepurchaseProgrammeAuthorisedAmount_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The share repurchase program authorised amount.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ShareRepurchaseProgrammeAuthorisedAmount_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Share Repurchase Programme Authorised Amount</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ShareRepurchaseProgrammeAuthorisedAmount_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Authorised repurchase amount</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfSharesRepurchased" xlink:label="gsm_NumberOfSharesRepurchased" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberOfSharesRepurchased" xlink:to="gsm_NumberOfSharesRepurchased_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfSharesRepurchased_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The number of shares repurchased.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfSharesRepurchased_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of Shares Repurchased</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NumberOfSharesRepurchased_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of shares acquired</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PaymentsOfStampDuty" xlink:label="gsm_PaymentsOfStampDuty" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PaymentsOfStampDuty" xlink:to="gsm_PaymentsOfStampDuty_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PaymentsOfStampDuty_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The cash outflow in payments of stamp duty.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PaymentsOfStampDuty_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Payments of Stamp Duty</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PaymentsOfStampDuty_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Stamp duty</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ShareRepurchasesAveragePricePaidPerShare" xlink:label="gsm_ShareRepurchasesAveragePricePaidPerShare" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ShareRepurchasesAveragePricePaidPerShare" xlink:to="gsm_ShareRepurchasesAveragePricePaidPerShare_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ShareRepurchasesAveragePricePaidPerShare_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of average price paid per share under share repurchase program.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ShareRepurchasesAveragePricePaidPerShare_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Share Repurchases, Average Price Paid Per Share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ShareRepurchasesAveragePricePaidPerShare_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Average price paid per share</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfSharesRepurchasedAndCancelled" xlink:label="gsm_NumberOfSharesRepurchasedAndCancelled" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberOfSharesRepurchasedAndCancelled" xlink:to="gsm_NumberOfSharesRepurchasedAndCancelled_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfSharesRepurchasedAndCancelled_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The number of shares repurchased and cancelled.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfSharesRepurchasedAndCancelled_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of Shares Repurchased and Cancelled</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NumberOfSharesRepurchasedAndCancelled_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Purchased and cancelled</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfSharesRepurchasedAndHeldInTreasury" xlink:label="gsm_NumberOfSharesRepurchasedAndHeldInTreasury" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberOfSharesRepurchasedAndHeldInTreasury" xlink:to="gsm_NumberOfSharesRepurchasedAndHeldInTreasury_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfSharesRepurchasedAndHeldInTreasury_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The number of shares repurchased and held in treasury.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfSharesRepurchasedAndHeldInTreasury_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of Shares Repurchased and Held in Treasury</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NumberOfSharesRepurchasedAndHeldInTreasury_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ordinary shares purchased into treasury</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfInterimDividendPayments" xlink:label="gsm_NumberOfInterimDividendPayments" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberOfInterimDividendPayments" xlink:to="gsm_NumberOfInterimDividendPayments_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfInterimDividendPayments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The number of interim dividend payments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfInterimDividendPayments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number Of Interim Dividend Payments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NumberOfInterimDividendPayments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of interim dividend payments</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DividendsPaidOrdinarySharesPerShare" xlink:label="ifrs-full_DividendsPaidOrdinarySharesPerShare" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DividendsPaidOrdinarySharesPerShare" xlink:to="ifrs-full_DividendsPaidOrdinarySharesPerShare_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DividendsPaidOrdinarySharesPerShare_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Dividends paid, ordinary shares per share</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DividendsPaidOrdinarySharesPerShare_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Dividends paid, per share</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DividendsPaidOrdinaryShares" xlink:label="ifrs-full_DividendsPaidOrdinaryShares" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DividendsPaidOrdinaryShares" xlink:to="ifrs-full_DividendsPaidOrdinaryShares_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DividendsPaidOrdinaryShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Dividends paid, ordinary shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DividendsPaidOrdinaryShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Dividends paid, ordinary shares</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IncreaseDecreaseOnParentsOwnershipInterest" xlink:label="gsm_IncreaseDecreaseOnParentsOwnershipInterest" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IncreaseDecreaseOnParentsOwnershipInterest" xlink:to="gsm_IncreaseDecreaseOnParentsOwnershipInterest_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IncreaseDecreaseOnParentsOwnershipInterest_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The increase (decrease) in equity through parent's ownership interest.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IncreaseDecreaseOnParentsOwnershipInterest_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase Decrease On Parents Ownership Interest</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IncreaseDecreaseOnParentsOwnershipInterest_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase of Parent's ownership interest</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_QuebecSiliconLimitedPartnershipMember" xlink:label="gsm_QuebecSiliconLimitedPartnershipMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_QuebecSiliconLimitedPartnershipMember" xlink:to="gsm_QuebecSiliconLimitedPartnershipMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_QuebecSiliconLimitedPartnershipMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Quebec Silicon Limited Partnership (QSLP).</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_QuebecSiliconLimitedPartnershipMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Quebec Silicon Limited Partnership [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_QuebecSiliconLimitedPartnershipMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Quebec Silicon Limited Partnership [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_JointVenturesAxis" xlink:label="ifrs-full_JointVenturesAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_JointVenturesAxis" xlink:to="ifrs-full_JointVenturesAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_JointVenturesAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Joint ventures [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_EntitysTotalForJointVenturesMember" xlink:label="ifrs-full_EntitysTotalForJointVenturesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EntitysTotalForJointVenturesMember" xlink:to="ifrs-full_EntitysTotalForJointVenturesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EntitysTotalForJointVenturesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Entitys Total For Joint Ventures [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_EntitysTotalForJointVenturesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Entity's total for joint ventures [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_OperatingAgreementAdditionalCostPerMetricTon" xlink:label="gsm_OperatingAgreementAdditionalCostPerMetricTon" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_OperatingAgreementAdditionalCostPerMetricTon" xlink:to="gsm_OperatingAgreementAdditionalCostPerMetricTon_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_OperatingAgreementAdditionalCostPerMetricTon_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the addition cost after actual production per metric ton.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_OperatingAgreementAdditionalCostPerMetricTon_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Operating Agreement Additional Cost Per Metric Ton</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_OperatingAgreementAdditionalCostPerMetricTon_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Additional cost per operating agreement</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PercentageMembershipInterestSold" xlink:label="gsm_PercentageMembershipInterestSold" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PercentageMembershipInterestSold" xlink:to="gsm_PercentageMembershipInterestSold_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PercentageMembershipInterestSold_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The percentage of membership interest of a subsidiary sold.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PercentageMembershipInterestSold_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage Membership Interest Sold</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PercentageMembershipInterestSold_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Membership interest sold (as a percentage)</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PercentageOfProductionOutputSold" xlink:label="gsm_PercentageOfProductionOutputSold" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PercentageOfProductionOutputSold" xlink:to="gsm_PercentageOfProductionOutputSold_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PercentageOfProductionOutputSold_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The percentage of production output that will be sold to an entity.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PercentageOfProductionOutputSold_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage Of Production Output Sold</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PercentageOfProductionOutputSold_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Production output sold (as a percentage)</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_BasicEarningsPerShareAbstract" xlink:label="ifrs-full_BasicEarningsPerShareAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BasicEarningsPerShareAbstract" xlink:to="ifrs-full_BasicEarningsPerShareAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_EarningsPerShareNumeratorAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_EarningsPerShareNumeratorAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Earnings Per Share Numerator [Abstract]</label>
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    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_WeightedAverageSharesAbstract" xlink:label="gsm_WeightedAverageSharesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_WeightedAverageSharesAbstract" xlink:to="gsm_WeightedAverageSharesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_WeightedAverageSharesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_WeightedAverageSharesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted Average Shares Abstract</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_WeightedAverageSharesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Denominator:</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DilutedEarningsPerShareAbstract" xlink:label="ifrs-full_DilutedEarningsPerShareAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NetIncomeLossDilutedNumeratorAbstract" xlink:label="gsm_NetIncomeLossDilutedNumeratorAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NetIncomeLossDilutedNumeratorAbstract" xlink:to="gsm_NetIncomeLossDilutedNumeratorAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NetIncomeLossDilutedNumeratorAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NetIncomeLossDilutedNumeratorAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net Income Loss Diluted Numerator Abstract</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NetIncomeLossDilutedNumeratorAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Numerator:.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract" xlink:label="ifrs-full_WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract" xlink:to="ifrs-full_WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted average ordinary shares and adjusted weighted average ordinary shares [abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Denominator:.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="gsm_IfrsAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:to="gsm_IfrsAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">IFRS Antidilutive Securities Excluded from Computation of Earnings Per Share Amount</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Potential ordinary shares excluded from calculation of diluted (loss) earnings per share because their effect would be anti-dilutive</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ClassesOfProvisionsAxis" xlink:label="ifrs-full_ClassesOfProvisionsAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfProvisionsAxis" xlink:to="ifrs-full_ClassesOfProvisionsAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfProvisionsAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Classes of other provisions [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherProvisionsMember" xlink:label="ifrs-full_OtherProvisionsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherProvisionsMember" xlink:to="ifrs-full_OtherProvisionsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherProvisionsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Provisions [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherProvisionsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provisions</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ProvisionsForPensionsMember" xlink:label="gsm_ProvisionsForPensionsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ProvisionsForPensionsMember" xlink:to="gsm_ProvisionsForPensionsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ProvisionsForPensionsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Information related to provisions made for pensions.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ProvisionsForPensionsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provisions For Pensions [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ProvisionsForPensionsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provisions For Pensions [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherEnvironmentRelatedProvisionMember" xlink:label="ifrs-full_OtherEnvironmentRelatedProvisionMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherEnvironmentRelatedProvisionMember" xlink:to="ifrs-full_OtherEnvironmentRelatedProvisionMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherEnvironmentRelatedProvisionMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Environment Related Provision [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherEnvironmentRelatedProvisionMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Environment provision [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LegalProceedingsProvisionMember" xlink:label="ifrs-full_LegalProceedingsProvisionMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LegalProceedingsProvisionMember" xlink:to="ifrs-full_LegalProceedingsProvisionMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LegalProceedingsProvisionMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Legal Proceedings Provision [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LegalProceedingsProvisionMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provisions for litigation [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ProvisionsForThirdPartyLiabilityMember" xlink:label="gsm_ProvisionsForThirdPartyLiabilityMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ProvisionsForThirdPartyLiabilityMember" xlink:to="gsm_ProvisionsForThirdPartyLiabilityMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ProvisionsForThirdPartyLiabilityMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Information related to provision made for third party liability.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ProvisionsForThirdPartyLiabilityMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provisions For Third Party Liability [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ProvisionsForThirdPartyLiabilityMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provisions for third-party liability [Member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ProvisionsForCo2EmissionsAllowancesMember" xlink:label="gsm_ProvisionsForCo2EmissionsAllowancesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ProvisionsForCo2EmissionsAllowancesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Information pertaining to provisions for CO2 emissions allowances.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ProvisionsForCo2EmissionsAllowancesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provisions For Co2 Emissions Allowances [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ProvisionsForCo2EmissionsAllowancesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provisions for C02 emissions allowances [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_MiscellaneousOtherProvisionsMember" xlink:label="ifrs-full_MiscellaneousOtherProvisionsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MiscellaneousOtherProvisionsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Miscellaneous Other Provisions [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_MiscellaneousOtherProvisionsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other provisions [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_EnvironmentalRehabilitationMember" xlink:label="gsm_EnvironmentalRehabilitationMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_EnvironmentalRehabilitationMember" xlink:to="gsm_EnvironmentalRehabilitationMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_EnvironmentalRehabilitationMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Environmental rehabilitation [member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_EnvironmentalRehabilitationMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Environmental Rehabilitation [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_EnvironmentalRehabilitationMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Environmental rehabilitation [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ProvisionsForLitigationFerropemFranceMember" xlink:label="gsm_ProvisionsForLitigationFerropemFranceMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ProvisionsForLitigationFerropemFranceMember" xlink:to="gsm_ProvisionsForLitigationFerropemFranceMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ProvisionsForLitigationFerropemFranceMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provisions for litigation - FerroPem France [member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ProvisionsForLitigationFerropemFranceMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provisions For Litigation Ferropem France [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ProvisionsForLitigationFerropemFranceMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provisions for litigation - FerroPem France [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_OtherProvisionsProvisionsForTaxesMember" xlink:label="gsm_OtherProvisionsProvisionsForTaxesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_OtherProvisionsProvisionsForTaxesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other provisions, provisions for taxes [member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_OtherProvisionsProvisionsForTaxesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Provisions Provisions For Taxes [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_OtherProvisionsProvisionsForTaxesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other provisions, provisions for taxes [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_OtherProvisionsOtherMember" xlink:label="gsm_OtherProvisionsOtherMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_OtherProvisionsOtherMember" xlink:to="gsm_OtherProvisionsOtherMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_OtherProvisionsOtherMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other provisions, other [member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_OtherProvisionsOtherMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Provisions Other [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_OtherProvisionsOtherMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other provisions, other [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ReconciliationOfChangesInOtherProvisionsAbstract" xlink:label="ifrs-full_ReconciliationOfChangesInOtherProvisionsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ReconciliationOfChangesInOtherProvisionsAbstract" xlink:to="ifrs-full_ReconciliationOfChangesInOtherProvisionsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ReconciliationOfChangesInOtherProvisionsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Reconciliation of changes in other provisions [abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AdditionalProvisionsOtherProvisions" xlink:label="ifrs-full_AdditionalProvisionsOtherProvisions" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdditionalProvisionsOtherProvisions" xlink:to="ifrs-full_AdditionalProvisionsOtherProvisions_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdditionalProvisionsOtherProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Additional provisions, other provisions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdditionalProvisionsOtherProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Charges for the year</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_UnusedProvisionReversedOtherProvisions" xlink:label="ifrs-full_UnusedProvisionReversedOtherProvisions" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_UnusedProvisionReversedOtherProvisions" xlink:to="ifrs-full_UnusedProvisionReversedOtherProvisions_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_UnusedProvisionReversedOtherProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Unused provision reversed, other provisions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_UnusedProvisionReversedOtherProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provisions reversed with a credit to income</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AcquisitionsThroughBusinessCombinationsOtherProvisions" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsOtherProvisions" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AcquisitionsThroughBusinessCombinationsOtherProvisions" xlink:to="ifrs-full_AcquisitionsThroughBusinessCombinationsOtherProvisions_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsOtherProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Acquisitions through business combinations, other provisions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsOtherProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Incorporation to the scope of consolidation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AcquisitionsThroughBusinessCombinationsOtherProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Additions from business combinations (see Note 5)</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ProvisionUsedOtherProvisions" xlink:label="ifrs-full_ProvisionUsedOtherProvisions" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProvisionUsedOtherProvisions" xlink:to="ifrs-full_ProvisionUsedOtherProvisions_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProvisionUsedOtherProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provision used, other provisions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_ProvisionUsedOtherProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amounts used</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ProvisionAgainstEquity" xlink:label="gsm_ProvisionAgainstEquity" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ProvisionAgainstEquity" xlink:to="gsm_ProvisionAgainstEquity_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ProvisionAgainstEquity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the amount of provision against equity.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ProvisionAgainstEquity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provision Against Equity</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gsm_ProvisionAgainstEquity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provision against equity</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesOtherProvisions" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesOtherProvisions" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesOtherProvisions" xlink:to="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesOtherProvisions_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesOtherProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (decrease) through transfers and other changes, other provisions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesOtherProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Transfers from/(to) other accounts</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions" xlink:to="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (decrease) through net exchange differences, other provisions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesOtherProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Exchange differences and others</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DecreaseThroughTransferToLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSaleOtherProvisions" xlink:label="ifrs-full_DecreaseThroughTransferToLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSaleOtherProvisions" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DecreaseThroughTransferToLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSaleOtherProvisions" xlink:to="ifrs-full_DecreaseThroughTransferToLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSaleOtherProvisions_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DecreaseThroughTransferToLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSaleOtherProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Decrease through transfer to liabilities included in disposal groups classified as held for sale, other provisions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DecreaseThroughTransferToLiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSaleOtherProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Transfer from liabilities associated with assets held for sale</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DecreaseThroughLossOfControlOfSubsidiaryOtherProvisions" xlink:label="ifrs-full_DecreaseThroughLossOfControlOfSubsidiaryOtherProvisions" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DecreaseThroughLossOfControlOfSubsidiaryOtherProvisions" xlink:to="ifrs-full_DecreaseThroughLossOfControlOfSubsidiaryOtherProvisions_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DecreaseThroughLossOfControlOfSubsidiaryOtherProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Decrease through loss of control of subsidiary, other provisions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="ifrs-full_DecreaseThroughLossOfControlOfSubsidiaryOtherProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disposals from business divestitures</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetTable" xlink:label="ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetTable" xlink:to="ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of net defined benefit liability (asset) [table]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroPemSASMember" xlink:label="gsm_FerroPemSASMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroPemSASMember" xlink:to="gsm_FerroPemSASMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroPemSASMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Information related to FerroPem SAS.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerroPemSASMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferro Pem S A S [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroPemSASMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferro Pem S A S [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_MaturityAxis" xlink:label="ifrs-full_MaturityAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MaturityAxis" xlink:to="ifrs-full_MaturityAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MaturityAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Maturity [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AggregatedTimeBandsMember" xlink:label="ifrs-full_AggregatedTimeBandsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AggregatedTimeBandsMember" xlink:to="ifrs-full_AggregatedTimeBandsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AggregatedTimeBandsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Aggregated Time Bands [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AggregatedTimeBandsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Aggregated time bands [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NotLaterThanOneYearMember" xlink:label="ifrs-full_NotLaterThanOneYearMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NotLaterThanOneYearMember" xlink:to="ifrs-full_NotLaterThanOneYearMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NotLaterThanOneYearMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Not Later Than One Year [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NotLaterThanOneYearMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Not later than one year</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" xlink:label="ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember" xlink:to="ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Later Than One Year And Not Later Than Two Years [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Later than one year and not later than two years</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember" xlink:label="ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember" xlink:to="ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Later Than Two Years And Not Later Than Three Years [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Later than two years and not later than three years</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember" xlink:label="ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember" xlink:to="ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Later Than Three Years And Not Later Than Four Years [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Later than three years and not later than four years</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember" xlink:label="ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember" xlink:to="ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Later Than Four Years And Not Later Than Five Years [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Later than four years and not later than five years</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember" xlink:label="ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember" xlink:to="ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Later Than Five Years And Not Later Than Ten Years [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LaterThanFiveYearsAndNotLaterThanTenYearsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Later than five years and not later than ten years [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NetDefinedBenefitLiabilityAssetAxis" xlink:label="ifrs-full_NetDefinedBenefitLiabilityAssetAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NetDefinedBenefitLiabilityAssetAxis" xlink:to="ifrs-full_NetDefinedBenefitLiabilityAssetAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NetDefinedBenefitLiabilityAssetAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net defined benefit liability (asset) [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NetDefinedBenefitLiabilityAssetMember" xlink:label="ifrs-full_NetDefinedBenefitLiabilityAssetMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NetDefinedBenefitLiabilityAssetMember" xlink:to="ifrs-full_NetDefinedBenefitLiabilityAssetMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NetDefinedBenefitLiabilityAssetMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net Defined Benefit Liability Asset [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NetDefinedBenefitLiabilityAssetMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net defined benefit liability (asset) [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_PresentValueOfDefinedBenefitObligationMember" xlink:label="ifrs-full_PresentValueOfDefinedBenefitObligationMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PresentValueOfDefinedBenefitObligationMember" xlink:to="ifrs-full_PresentValueOfDefinedBenefitObligationMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PresentValueOfDefinedBenefitObligationMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Present Value Of Defined Benefit Obligation [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_PresentValueOfDefinedBenefitObligationMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Present value of defined benefit obligation [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetLineItems" xlink:label="ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetLineItems" xlink:to="ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfNetDefinedBenefitLiabilityAssetLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of net defined benefit liability (asset) [line items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ChangesInNetDefinedBenefitLiabilityAssetAbstract" xlink:label="ifrs-full_ChangesInNetDefinedBenefitLiabilityAssetAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ChangesInNetDefinedBenefitLiabilityAssetAbstract" xlink:to="ifrs-full_ChangesInNetDefinedBenefitLiabilityAssetAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ChangesInNetDefinedBenefitLiabilityAssetAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Changes in net defined benefit liability (asset) [abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LiabilityAssetOfDefinedBenefitPlans" xlink:label="ifrs-full_LiabilityAssetOfDefinedBenefitPlans" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LiabilityAssetOfDefinedBenefitPlans" xlink:to="ifrs-full_LiabilityAssetOfDefinedBenefitPlans_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LiabilityAssetOfDefinedBenefitPlans_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net defined benefit liability (asset)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_LiabilityAssetOfDefinedBenefitPlans_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Obligations at end of year</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_LiabilityAssetOfDefinedBenefitPlans_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Obligations at beginning of year</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LiabilityAssetOfDefinedBenefitPlans_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Benefit obligation</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset" xlink:label="ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset" xlink:to="ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current service cost, net defined benefit liability (asset)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current service cost</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CurrentServiceCostNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Service cost</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset" xlink:label="ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset" xlink:to="ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest expense (income), net defined benefit liability (asset)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InterestExpenseIncomeNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Borrowing costs</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset" xlink:label="ifrs-full_GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset" xlink:to="ifrs-full_GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gain (loss) on remeasurement, net defined benefit liability (asset)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Actuarial differences</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Actuarial differences</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset" xlink:label="ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset" xlink:to="ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Payments from plan, net defined benefit liability (asset)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Benefits paid</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_PaymentsFromPlanNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Benefits paid</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset" xlink:label="ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset" xlink:to="ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (decrease) through changes in foreign exchange rates, net defined benefit liability (asset)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Exchange differences</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PercentageOfReasonablePossibleChangeInCostOfProvision" xlink:label="gsm_PercentageOfReasonablePossibleChangeInCostOfProvision" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PercentageOfReasonablePossibleChangeInCostOfProvision" xlink:to="gsm_PercentageOfReasonablePossibleChangeInCostOfProvision_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PercentageOfReasonablePossibleChangeInCostOfProvision_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The reasonably possible percentage of the change in the cost of provision used to determine the present value of the defined benefit obligation.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PercentageOfReasonablePossibleChangeInCostOfProvision_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage Of Reasonable Possible Change In Cost Of Provision</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PercentageOfReasonablePossibleChangeInCostOfProvision_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage change in cost of provision</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleChangeInCostOfProvision" xlink:label="gsm_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleChangeInCostOfProvision" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleChangeInCostOfProvision" xlink:to="gsm_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleChangeInCostOfProvision_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleChangeInCostOfProvision_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The increase (decrease) in a defined benefit obligation that would have been caused by an change in a cost of provision that was reasonably possible at the end of the reporting period.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleChangeInCostOfProvision_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase Decrease In Defined Benefit Obligation Due To Reasonably Possible Change In Cost Of Provision</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleChangeInCostOfProvision_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Change in obligation</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_EstimatedFutureBenefitPaymentsAbstract" xlink:label="gsm_EstimatedFutureBenefitPaymentsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_EstimatedFutureBenefitPaymentsAbstract" xlink:to="gsm_EstimatedFutureBenefitPaymentsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_EstimatedFutureBenefitPaymentsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_EstimatedFutureBenefitPaymentsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Estimated Future Benefit Payments [Abstract]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_EstimatedFutureBenefitPaymentsFromDefinedBenefitPensionPlans" xlink:label="gsm_EstimatedFutureBenefitPaymentsFromDefinedBenefitPensionPlans" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_EstimatedFutureBenefitPaymentsFromDefinedBenefitPensionPlans" xlink:to="gsm_EstimatedFutureBenefitPaymentsFromDefinedBenefitPensionPlans_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_EstimatedFutureBenefitPaymentsFromDefinedBenefitPensionPlans_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The estimated amount, at the balance sheet date, of the future benefit payments to be made during the specified period from defined benefit plans</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_EstimatedFutureBenefitPaymentsFromDefinedBenefitPensionPlans_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Estimated Future Benefit Payments From Defined Benefit Pension Plans</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_EstimatedFutureBenefitPaymentsFromDefinedBenefitPensionPlans_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Estimated future benefit payments</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfDefinedBenefitPlansTable" xlink:label="ifrs-full_DisclosureOfDefinedBenefitPlansTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDefinedBenefitPlansTable" xlink:to="ifrs-full_DisclosureOfDefinedBenefitPlansTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDefinedBenefitPlansTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of defined benefit plans [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_PlanAssetsMember" xlink:label="ifrs-full_PlanAssetsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PlanAssetsMember" xlink:to="ifrs-full_PlanAssetsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PlanAssetsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Plan Assets [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_PlanAssetsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Plan assets [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfDefinedBenefitPlansLineItems" xlink:label="ifrs-full_DisclosureOfDefinedBenefitPlansLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDefinedBenefitPlansLineItems" xlink:to="ifrs-full_DisclosureOfDefinedBenefitPlansLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDefinedBenefitPlansLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of defined benefit plans [line items]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PercentageOfReasonablyPossibleChangeInCostOfMedicalAid" xlink:label="gsm_PercentageOfReasonablyPossibleChangeInCostOfMedicalAid" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PercentageOfReasonablyPossibleChangeInCostOfMedicalAid" xlink:to="gsm_PercentageOfReasonablyPossibleChangeInCostOfMedicalAid_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PercentageOfReasonablyPossibleChangeInCostOfMedicalAid_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The reasonably possible percentage of the change in the cost of medical aid used to determine the defined benefit obligation.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PercentageOfReasonablyPossibleChangeInCostOfMedicalAid_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage Of Reasonably Possible Change In Cost Of Medical Aid</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PercentageOfReasonablyPossibleChangeInCostOfMedicalAid_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage change in cost of medical aid</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleChangeInCostOfMedicalAid" xlink:label="gsm_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleChangeInCostOfMedicalAid" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleChangeInCostOfMedicalAid" xlink:to="gsm_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleChangeInCostOfMedicalAid_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleChangeInCostOfMedicalAid_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The increase (decrease) in a defined benefit obligation that would have been caused by a change in cost of medical aid that was reasonably possible at the end of the reporting period.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleChangeInCostOfMedicalAid_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase Decrease In Defined Benefit Obligation Due To Reasonably Possible Change In Cost Of Medical Aid</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleChangeInCostOfMedicalAid_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Change in provision due to reasonably possible change in the cost of medical aid</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfFairValueOfPlanAssetsAbstract" xlink:label="ifrs-full_DisclosureOfFairValueOfPlanAssetsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFairValueOfPlanAssetsAbstract" xlink:to="ifrs-full_DisclosureOfFairValueOfPlanAssetsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFairValueOfPlanAssetsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of fair value of plan assets [abstract]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xlink:label="gsm_CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xlink:to="gsm_CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount that cash and cash equivalents constitute of the fair value of defined benefit plan assets as a percent of total defined benefit plan assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash And Cash Equivalents, Amount Contributed To Fair Value Of Plan Assets As A Percent Of Total Defined Benefit Plan Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_CashAndCashEquivalentsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_EquityInstrumentsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xlink:label="gsm_EquityInstrumentsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_EquityInstrumentsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xlink:to="gsm_EquityInstrumentsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_EquityInstrumentsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount that instruments representing equity (rather than debt) constitute of the fair value of defined benefit plan assets as a percent of total defined benefit plan assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_EquityInstrumentsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Equity Instruments, Amount Contributed To Fair Value Of Plan Assets As A Percent Of Total Defined Benefit Plan Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_EquityInstrumentsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Equity</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_BondsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xlink:label="gsm_BondsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_BondsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xlink:to="gsm_BondsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_BondsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount that instruments representing bonds constitute of the fair value of defined benefit plan assets as a percent of total defined benefit plan assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_BondsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Bonds Amount Contributed To Fair Value Of Plan Assets As Percent Of Total Defined Benefit Plan Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_BondsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Bonds</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_RealEstateAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xlink:label="gsm_RealEstateAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_RealEstateAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xlink:to="gsm_RealEstateAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_RealEstateAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount that real estate constitutes of the fair value of defined benefit plan assets as a percent of total defined benefit plan assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_RealEstateAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Real Estate, Amount Contributed To Fair Value Of Plan Assets As A Percent Of Total Defined Benefit Plan Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_RealEstateAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Property</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_InternationalInvestmentsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xlink:label="gsm_InternationalInvestmentsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_InternationalInvestmentsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xlink:to="gsm_InternationalInvestmentsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_InternationalInvestmentsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount that international investments constitutes of the fair value of defined benefit plan assets as a percent of total defined benefit plan assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_InternationalInvestmentsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">International Investments Amount Contributed To Fair Value Of Plan Assets As Percent Of Total Defined Benefit Plan Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_InternationalInvestmentsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">International</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_OtherAssetsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xlink:label="gsm_OtherAssetsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_OtherAssetsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xlink:to="gsm_OtherAssetsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_OtherAssetsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount that other types of assets not separately disclosed constitute of the fair value of defined benefit plan assets as a percent of total defined benefit plan assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_OtherAssetsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Assets, Amount Contributed To Fair Value Of Plan Assets As A Percent Of Total Defined Benefit Plan Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_OtherAssetsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Others</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfFairValueOfPlanAssetsAsPercentage" xlink:label="gsm_DisclosureOfFairValueOfPlanAssetsAsPercentage" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfFairValueOfPlanAssetsAsPercentage" xlink:to="gsm_DisclosureOfFairValueOfPlanAssetsAsPercentage_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfFairValueOfPlanAssetsAsPercentage_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the percentage of fair value of plan assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfFairValueOfPlanAssetsAsPercentage_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Of Fair Value Of Plan Assets As Percentage</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gsm_DisclosureOfFairValueOfPlanAssetsAsPercentage_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsDefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward" xlink:label="gsm_IfrsDefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsDefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward" xlink:to="gsm_IfrsDefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsDefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

	A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsDefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_PlanAssetsAtFairValue" xlink:label="ifrs-full_PlanAssetsAtFairValue" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PlanAssetsAtFairValue" xlink:to="ifrs-full_PlanAssetsAtFairValue_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PlanAssetsAtFairValue_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Plan assets, at fair value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_PlanAssetsAtFairValue_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Fair value of plan assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_PlanAssetsAtFairValue_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Fair value of plan assets at the end of the year</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_PlanAssetsAtFairValue_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Fair value of plan assets at the beginning of the year</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DefinedBenefitPlanInterestIncomeOnPlanAssets" xlink:label="gsm_DefinedBenefitPlanInterestIncomeOnPlanAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DefinedBenefitPlanInterestIncomeOnPlanAssets" xlink:to="gsm_DefinedBenefitPlanInterestIncomeOnPlanAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DefinedBenefitPlanInterestIncomeOnPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The increase in defined benefit plan assets due to interest income.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DefinedBenefitPlanInterestIncomeOnPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Defined Benefit Plan Interest Income On Plan Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DefinedBenefitPlanInterestIncomeOnPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest income on assets</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsDefinedBenefitPlanBenefitsPaid" xlink:label="gsm_IfrsDefinedBenefitPlanBenefitsPaid" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsDefinedBenefitPlanBenefitsPaid" xlink:to="gsm_IfrsDefinedBenefitPlanBenefitsPaid_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsDefinedBenefitPlanBenefitsPaid_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsDefinedBenefitPlanBenefitsPaid_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs Defined Benefit Plan, Benefits Paid</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gsm_IfrsDefinedBenefitPlanBenefitsPaid_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Benefits paid</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IncreaseDecreaseInDefinedBenefitPlanAssetsDueToActuarialDifferences" xlink:label="gsm_IncreaseDecreaseInDefinedBenefitPlanAssetsDueToActuarialDifferences" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IncreaseDecreaseInDefinedBenefitPlanAssetsDueToActuarialDifferences" xlink:to="gsm_IncreaseDecreaseInDefinedBenefitPlanAssetsDueToActuarialDifferences_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IncreaseDecreaseInDefinedBenefitPlanAssetsDueToActuarialDifferences_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (decrease) in defined benefit plan assets due to changes in actuarial assumptions.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IncreaseDecreaseInDefinedBenefitPlanAssetsDueToActuarialDifferences_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase Decrease In Defined Benefit Plan Assets Due To Actuarial Differences</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IncreaseDecreaseInDefinedBenefitPlanAssetsDueToActuarialDifferences_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Actuarial differences</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="gsm_IncreaseDecreaseInDefinedBenefitPlanAssetsDueToActuarialDifferences_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Actuarial return (loss) on plan assets</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IncreaseDecreaseInDefinedBenefitPlanAssetsDueToOther" xlink:label="gsm_IncreaseDecreaseInDefinedBenefitPlanAssetsDueToOther" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IncreaseDecreaseInDefinedBenefitPlanAssetsDueToOther" xlink:to="gsm_IncreaseDecreaseInDefinedBenefitPlanAssetsDueToOther_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IncreaseDecreaseInDefinedBenefitPlanAssetsDueToOther_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (decrease) in defined plan assets due to other reasons not specifically disclosed.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IncreaseDecreaseInDefinedBenefitPlanAssetsDueToOther_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase Decrease In Defined Benefit Plan Assets Due To Other</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IncreaseDecreaseInDefinedBenefitPlanAssetsDueToOther_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsDefinedBenefitPlanActualReturnOnPlanAssets" xlink:label="gsm_IfrsDefinedBenefitPlanActualReturnOnPlanAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsDefinedBenefitPlanActualReturnOnPlanAssets" xlink:to="gsm_IfrsDefinedBenefitPlanActualReturnOnPlanAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsDefinedBenefitPlanActualReturnOnPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The difference between fair value of plan assets at the end of the period and the fair value at the beginning of the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsDefinedBenefitPlanActualReturnOnPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs Defined Benefit Plan, Actual Return on Plan Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsDefinedBenefitPlanActualReturnOnPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Actual return on assets</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroatlanticaDeVenezuelaSaMember" xlink:label="gsm_FerroatlanticaDeVenezuelaSaMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroatlanticaDeVenezuelaSaMember" xlink:to="gsm_FerroatlanticaDeVenezuelaSaMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroatlanticaDeVenezuelaSaMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for FerroAtlantica de Venezuela (FerroVen), SA.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerroatlanticaDeVenezuelaSaMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroatlantica De Venezuela Sa [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroatlanticaDeVenezuelaSaMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">FerroAtlantica De Venezuela SA</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfYearsOfEmployeeServiceAccumulated" xlink:label="gsm_NumberOfYearsOfEmployeeServiceAccumulated" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberOfYearsOfEmployeeServiceAccumulated" xlink:to="gsm_NumberOfYearsOfEmployeeServiceAccumulated_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfYearsOfEmployeeServiceAccumulated_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the number of years of service at the company accumulated by the employee</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfYearsOfEmployeeServiceAccumulated_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number Of Years Of Employee Service Accumulated</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NumberOfYearsOfEmployeeServiceAccumulated_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Years of service</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PercentageOfBasicSalaryPaymentGuaranteed" xlink:label="gsm_PercentageOfBasicSalaryPaymentGuaranteed" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PercentageOfBasicSalaryPaymentGuaranteed" xlink:to="gsm_PercentageOfBasicSalaryPaymentGuaranteed_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PercentageOfBasicSalaryPaymentGuaranteed_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the percentage of basic salary guaranteed by Venezuelan Social Security Institute (IVSS).</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PercentageOfBasicSalaryPaymentGuaranteed_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage Of Basic Salary Payment Guaranteed</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PercentageOfBasicSalaryPaymentGuaranteed_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of basic salary guaranteed by IVSS</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ActuarialAssumptionsUsedToCalculateDefinedBenefitObligationAbstract" xlink:label="gsm_ActuarialAssumptionsUsedToCalculateDefinedBenefitObligationAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ActuarialAssumptionsUsedToCalculateDefinedBenefitObligationAbstract" xlink:to="gsm_ActuarialAssumptionsUsedToCalculateDefinedBenefitObligationAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ActuarialAssumptionsUsedToCalculateDefinedBenefitObligationAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ActuarialAssumptionsUsedToCalculateDefinedBenefitObligationAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Actuarial Assumptions Used To Calculate Defined Benefit Obligation [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases" xlink:to="ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Actuarial assumption of expected rates of salary increases</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfSalaryIncreases_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Salary increase</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ActuarialAssumptionOfDiscountRates" xlink:label="ifrs-full_ActuarialAssumptionOfDiscountRates" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ActuarialAssumptionOfDiscountRates" xlink:to="ifrs-full_ActuarialAssumptionOfDiscountRates_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ActuarialAssumptionOfDiscountRates_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Actuarial assumption of discount rates</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ActuarialAssumptionOfDiscountRates_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Discount rate</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation" xlink:to="ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Actuarial assumption of expected rates of inflation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ActuarialAssumptionOfExpectedRatesOfInflation_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Expected inflation rate</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ActuarialAssumptionOfRetirementAge" xlink:label="ifrs-full_ActuarialAssumptionOfRetirementAge" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ActuarialAssumptionOfRetirementAge" xlink:to="ifrs-full_ActuarialAssumptionOfRetirementAge_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ActuarialAssumptionOfRetirementAge_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Actuarial assumption of retirement age</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ActuarialAssumptionOfRetirementAge_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Retirement age</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GlobeMetallurgicalIncMember" xlink:label="gsm_GlobeMetallurgicalIncMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GlobeMetallurgicalIncMember" xlink:to="gsm_GlobeMetallurgicalIncMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GlobeMetallurgicalIncMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Information related to Globe Metallurgical Inc. (GMI)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GlobeMetallurgicalIncMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Globe Metallurgical Inc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GlobeMetallurgicalIncMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Globe Metallurgical Inc [Member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_LaterThanSixteenYearsAndNotLaterThanSeventeenYearsMember" xlink:label="gsm_LaterThanSixteenYearsAndNotLaterThanSeventeenYearsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_LaterThanSixteenYearsAndNotLaterThanSeventeenYearsMember" xlink:to="gsm_LaterThanSixteenYearsAndNotLaterThanSeventeenYearsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_LaterThanSixteenYearsAndNotLaterThanSeventeenYearsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for a time band later than sixteen years and not later than seventeen years.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_LaterThanSixteenYearsAndNotLaterThanSeventeenYearsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Later Than Sixteen Years And Not Later Than Seventeen Years [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_LaterThanSixteenYearsAndNotLaterThanSeventeenYearsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Later Than Sixteen Years And Not Later Than Seventeen Years [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_US" xlink:label="country_US" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="country_US" xlink:to="country_US_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="country_US_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">U [S]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="country_US_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">USA</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DefinedBenefitPlansAxis" xlink:label="ifrs-full_DefinedBenefitPlansAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DefinedBenefitPlansAxis" xlink:to="ifrs-full_DefinedBenefitPlansAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DefinedBenefitPlansAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Defined benefit plans [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DefinedBenefitPlansMember" xlink:label="ifrs-full_DefinedBenefitPlansMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DefinedBenefitPlansMember" xlink:to="ifrs-full_DefinedBenefitPlansMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DefinedBenefitPlansMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Defined Benefit Plans [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DefinedBenefitPlansMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Defined benefit plans [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember" xlink:label="ifrs-full_DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember" xlink:to="ifrs-full_DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Defined Benefit Plans Other Than Multiemployer Plans State Plans And Plans That Share Risks Between Entities Under Common Control [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DefinedBenefitPlansOtherThanMultiemployerPlansStatePlansAndPlansThatShareRisksBetweenEntitiesUnderCommonControlMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Pension Plans</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PostRetirementPlansMember" xlink:label="gsm_PostRetirementPlansMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PostRetirementPlansMember" xlink:to="gsm_PostRetirementPlansMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PostRetirementPlansMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Information related to post retirement plans.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PostRetirementPlansMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Post Retirement Plans [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PostRetirementPlansMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Post Retirement Plans</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NonContributoryPlansMember" xlink:label="gsm_NonContributoryPlansMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NonContributoryPlansMember" xlink:to="gsm_NonContributoryPlansMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NonContributoryPlansMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Information related to the non-contributory plans.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NonContributoryPlansMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non Contributory Plans [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NonContributoryPlansMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non Contributory Plans [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ActuarialAssumptionsAxis" xlink:label="ifrs-full_ActuarialAssumptionsAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ActuarialAssumptionsAxis" xlink:to="ifrs-full_ActuarialAssumptionsAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ActuarialAssumptionsAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Actuarial assumptions [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ActuarialAssumptionsMember" xlink:label="ifrs-full_ActuarialAssumptionsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ActuarialAssumptionsMember" xlink:to="ifrs-full_ActuarialAssumptionsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ActuarialAssumptionsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Actuarial Assumptions [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ActuarialAssumptionsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Actuarial assumptions [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ActuarialAssumptionOfMedicalCostTrendRatesMember" xlink:label="ifrs-full_ActuarialAssumptionOfMedicalCostTrendRatesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ActuarialAssumptionOfMedicalCostTrendRatesMember" xlink:to="ifrs-full_ActuarialAssumptionOfMedicalCostTrendRatesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ActuarialAssumptionOfMedicalCostTrendRatesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Actuarial Assumption Of Medical Cost Trend Rates [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ActuarialAssumptionOfMedicalCostTrendRatesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Actuarial assumption of medical cost trend rates [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfDefinedBenefitPlans" xlink:label="gsm_NumberOfDefinedBenefitPlans" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberOfDefinedBenefitPlans" xlink:to="gsm_NumberOfDefinedBenefitPlans_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfDefinedBenefitPlans_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the number of defined benefit plans sponsored.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfDefinedBenefitPlans_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number Of Defined Benefit Plans</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NumberOfDefinedBenefitPlans_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of defined benefit plans sponsored</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ReconciliationOfBenefitObligationPlanAssetsAndFundedStatusAbstract" xlink:label="gsm_ReconciliationOfBenefitObligationPlanAssetsAndFundedStatusAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ReconciliationOfBenefitObligationPlanAssetsAndFundedStatusAbstract" xlink:to="gsm_ReconciliationOfBenefitObligationPlanAssetsAndFundedStatusAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ReconciliationOfBenefitObligationPlanAssetsAndFundedStatusAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ReconciliationOfBenefitObligationPlanAssetsAndFundedStatusAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Reconciliation Of Benefit Obligation Plan Assets And Funded Status [Abstract]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsPostEmploymentBenefitsLiability" xlink:label="gsm_IfrsPostEmploymentBenefitsLiability" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsPostEmploymentBenefitsLiability" xlink:to="gsm_IfrsPostEmploymentBenefitsLiability_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsPostEmploymentBenefitsLiability_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The carrying amount as of the balance sheet date of the obligations recognized for the various benefits provided to former or inactive employees, their beneficiaries, and covered dependents after employment but before retirement.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsPostEmploymentBenefitsLiability_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs Post Employment Benefits Liability</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsPostEmploymentBenefitsLiability_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provision for pensions</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan" xlink:label="ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan" xlink:to="ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Estimate of contributions expected to be paid to plan for next annual reporting period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_EstimateOfContributionsExpectedToBePaidToPlan_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Discretionary contributions to the defined benefit pension and postretirement plans</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ActuarialAssumptionOfMedicalCostTrendRates" xlink:label="ifrs-full_ActuarialAssumptionOfMedicalCostTrendRates" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ActuarialAssumptionOfMedicalCostTrendRates" xlink:to="ifrs-full_ActuarialAssumptionOfMedicalCostTrendRates_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ActuarialAssumptionOfMedicalCostTrendRates_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Actuarial assumption of medical cost trend rates</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ActuarialAssumptionOfMedicalCostTrendRates_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Health care cost trend rate</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_PercentageOfReasonablyPossibleIncreaseInActuarialAssumption" xlink:label="ifrs-full_PercentageOfReasonablyPossibleIncreaseInActuarialAssumption" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PercentageOfReasonablyPossibleIncreaseInActuarialAssumption" xlink:to="ifrs-full_PercentageOfReasonablyPossibleIncreaseInActuarialAssumption_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PercentageOfReasonablyPossibleIncreaseInActuarialAssumption_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of reasonably possible increase in actuarial assumption</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption" xlink:label="ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption" xlink:to="ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (decrease) in defined benefit obligation due to reasonably possible increase in actuarial assumption</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_PercentageOfReasonablyPossibleDecreaseInActuarialAssumption" xlink:label="ifrs-full_PercentageOfReasonablyPossibleDecreaseInActuarialAssumption" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PercentageOfReasonablyPossibleDecreaseInActuarialAssumption" xlink:to="ifrs-full_PercentageOfReasonablyPossibleDecreaseInActuarialAssumption_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PercentageOfReasonablyPossibleDecreaseInActuarialAssumption_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of reasonably possible decrease in actuarial assumption</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption" xlink:label="ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption" xlink:to="ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (decrease) in defined benefit obligation due to reasonably possible decrease in actuarial assumption</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IncreaseDecreaseThroughPlanAmendmentsNetDefinedBenefitLiabilityAsset" xlink:label="gsm_IncreaseDecreaseThroughPlanAmendmentsNetDefinedBenefitLiabilityAsset" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IncreaseDecreaseThroughPlanAmendmentsNetDefinedBenefitLiabilityAsset" xlink:to="gsm_IncreaseDecreaseThroughPlanAmendmentsNetDefinedBenefitLiabilityAsset_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IncreaseDecreaseThroughPlanAmendmentsNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The increase (decrease) in the net defined benefit liability (asset) resulting from plan amendments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IncreaseDecreaseThroughPlanAmendmentsNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase Decrease Through Plan Amendments Net Defined Benefit Liability Asset</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IncreaseDecreaseThroughPlanAmendmentsNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Plan amendments</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DecreaseThroughExpensesInNetDefinedBenefitLiabilityAsset" xlink:label="gsm_DecreaseThroughExpensesInNetDefinedBenefitLiabilityAsset" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DecreaseThroughExpensesInNetDefinedBenefitLiabilityAsset" xlink:to="gsm_DecreaseThroughExpensesInNetDefinedBenefitLiabilityAsset_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DecreaseThroughExpensesInNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The decrease in the net defined benefit liability (asset) resulting from expenses charged.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DecreaseThroughExpensesInNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Decrease Through Expenses In Net Defined Benefit Liability Asset</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gsm_DecreaseThroughExpensesInNetDefinedBenefitLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Expenses</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_EquityMutualFundsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xlink:label="gsm_EquityMutualFundsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_EquityMutualFundsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xlink:to="gsm_EquityMutualFundsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_EquityMutualFundsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount that equity mutual funds constitute of the fair value of defined benefit plan assets as a percent of total defined benefit plan assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_EquityMutualFundsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Equity Mutual Funds Amount Contributed To Fair Value Of Plan Assets As Percent Of Total Defined Benefit Plan Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_EquityMutualFundsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Equity mutual funds</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FixedIncomeSecuritiesAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xlink:label="gsm_FixedIncomeSecuritiesAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FixedIncomeSecuritiesAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xlink:to="gsm_FixedIncomeSecuritiesAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FixedIncomeSecuritiesAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount that fixed income securities constitute of the fair value of defined benefit plan assets as a percent of total defined benefit plan assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FixedIncomeSecuritiesAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Fixed Income Securities Amount Contributed To Fair Value Of Plan Assets As Percent Of Total Defined Benefit Plan Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FixedIncomeSecuritiesAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Fixed income securities</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_RealEstateMutualFundsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xlink:label="gsm_RealEstateMutualFundsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_RealEstateMutualFundsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets" xlink:to="gsm_RealEstateMutualFundsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_RealEstateMutualFundsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount that real estate mutual funds constitute of the fair value of defined benefit plan assets as a percent of total defined benefit plan assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_RealEstateMutualFundsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Real Estate Mutual Funds Amount Contributed To Fair Value Of Plan Assets As Percent Of Total Defined Benefit Plan Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_RealEstateMutualFundsAmountContributedToFairValueOfPlanAssetsAsPercentOfTotalDefinedBenefitPlanAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Real estate mutual funds</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ClassesOfContingentLiabilitiesAxis" xlink:label="ifrs-full_ClassesOfContingentLiabilitiesAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfContingentLiabilitiesAxis" xlink:to="ifrs-full_ClassesOfContingentLiabilitiesAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfContingentLiabilitiesAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Classes of contingent liabilities [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ContingentLiabilitiesMember" xlink:label="ifrs-full_ContingentLiabilitiesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ContingentLiabilitiesMember" xlink:to="ifrs-full_ContingentLiabilitiesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ContingentLiabilitiesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Contingent Liabilities [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ContingentLiabilitiesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Contingent liabilities [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LegalProceedingsContingentLiabilityMember" xlink:label="ifrs-full_LegalProceedingsContingentLiabilityMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LegalProceedingsContingentLiabilityMember" xlink:to="ifrs-full_LegalProceedingsContingentLiabilityMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LegalProceedingsContingentLiabilityMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Legal Proceedings Contingent Liability [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LegalProceedingsContingentLiabilityMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Contingent</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_LegalProceedingsAsbestosClaimsContingentLiabilityMember" xlink:label="gsm_LegalProceedingsAsbestosClaimsContingentLiabilityMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_LegalProceedingsAsbestosClaimsContingentLiabilityMember" xlink:to="gsm_LegalProceedingsAsbestosClaimsContingentLiabilityMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_LegalProceedingsAsbestosClaimsContingentLiabilityMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for a contingent liability for Asbestos claims legal proceedings.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_LegalProceedingsAsbestosClaimsContingentLiabilityMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Legal Proceedings Asbestos Claims Contingent Liability [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_LegalProceedingsAsbestosClaimsContingentLiabilityMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Asbestos-related claims</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_OtherBenefitPlansAbstract" xlink:label="gsm_OtherBenefitPlansAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_OtherBenefitPlansAbstract" xlink:to="gsm_OtherBenefitPlansAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_OtherBenefitPlansAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_OtherBenefitPlansAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Benefit Plans [Abstract]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsDefinedContributionPlanEmployerMatchingContributionPercentOfMatch" xlink:label="gsm_IfrsDefinedContributionPlanEmployerMatchingContributionPercentOfMatch" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsDefinedContributionPlanEmployerMatchingContributionPercentOfMatch" xlink:to="gsm_IfrsDefinedContributionPlanEmployerMatchingContributionPercentOfMatch_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsDefinedContributionPlanEmployerMatchingContributionPercentOfMatch_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage employer matches of the employee's percentage contribution matched.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsDefinedContributionPlanEmployerMatchingContributionPercentOfMatch_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs Defined Contribution Plan, Employer Matching Contribution, Percent of Match</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsDefinedContributionPlanEmployerMatchingContributionPercentOfMatch_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Company match percentage</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsDefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent" xlink:label="gsm_IfrsDefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsDefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent" xlink:to="gsm_IfrsDefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsDefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsDefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsDefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of compensation</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfDefinedContributionPlans" xlink:label="gsm_NumberOfDefinedContributionPlans" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberOfDefinedContributionPlans" xlink:to="gsm_NumberOfDefinedContributionPlans_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfDefinedContributionPlans_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the number of defined contribution plans provided.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfDefinedContributionPlans_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number Of Defined Contribution Plans</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NumberOfDefinedContributionPlans_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of defined contribution plans provided</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherProvisionsAbstract" xlink:label="ifrs-full_OtherProvisionsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherProvisionsAbstract" xlink:to="ifrs-full_OtherProvisionsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherProvisionsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other provisions [abstract]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ProvisionsForLitigationCurrent" xlink:label="gsm_ProvisionsForLitigationCurrent" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ProvisionsForLitigationCurrent" xlink:to="gsm_ProvisionsForLitigationCurrent_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ProvisionsForLitigationCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of provisions related to litigation.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ProvisionsForLitigationCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provisions For Litigation Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ProvisionsForLitigationCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Provisions for litigation</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_BondToGuaranteeCivilFinancialResponsibility" xlink:label="gsm_BondToGuaranteeCivilFinancialResponsibility" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_BondToGuaranteeCivilFinancialResponsibility" xlink:to="gsm_BondToGuaranteeCivilFinancialResponsibility_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_BondToGuaranteeCivilFinancialResponsibility_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of bond to guarantee civil financial responsibility</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_BondToGuaranteeCivilFinancialResponsibility_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Bond to guarantee civil financial responsibility</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_BondToGuaranteeCivilFinancialResponsibility_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Bond to guarantee civil financial responsibility</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PaymentOfLitigation" xlink:label="gsm_PaymentOfLitigation" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PaymentOfLitigation" xlink:to="gsm_PaymentOfLitigation_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PaymentOfLitigation_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The cash outflows for payment of litigation.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PaymentOfLitigation_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Payment of Litigation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PaymentOfLitigation_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Litigation paid</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable" xlink:to="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of detailed information about borrowings [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_BorrowingsByNameAxis" xlink:label="ifrs-full_BorrowingsByNameAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BorrowingsByNameAxis" xlink:to="ifrs-full_BorrowingsByNameAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BorrowingsByNameAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Borrowings by name [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_BorrowingsByNameMember" xlink:label="ifrs-full_BorrowingsByNameMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BorrowingsByNameMember" xlink:to="ifrs-full_BorrowingsByNameMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BorrowingsByNameMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Borrowings By Name [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_BorrowingsByNameMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Borrowings by name [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CreditFacilitiesMember" xlink:label="gsm_CreditFacilitiesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CreditFacilitiesMember" xlink:to="gsm_CreditFacilitiesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CreditFacilitiesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Information related to credit facilities component of bank borrowings.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CreditFacilitiesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Credit Facilities [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_CreditFacilitiesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Credit facilities</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_OtherBankBorrowingsMember" xlink:label="gsm_OtherBankBorrowingsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_OtherBankBorrowingsMember" xlink:to="gsm_OtherBankBorrowingsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_OtherBankBorrowingsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Information related to other bank borrowings.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_OtherBankBorrowingsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Bank Borrowings [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_OtherBankBorrowingsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems" xlink:to="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of detailed information about borrowings [line items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_BorrowingsAbstract" xlink:label="ifrs-full_BorrowingsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BorrowingsAbstract" xlink:to="ifrs-full_BorrowingsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BorrowingsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Borrowings [abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_BorrowingsInterestRateBasis" xlink:label="ifrs-full_BorrowingsInterestRateBasis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BorrowingsInterestRateBasis" xlink:to="ifrs-full_BorrowingsInterestRateBasis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BorrowingsInterestRateBasis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Borrowings, interest rate basis</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_BorrowingsInterestRateBasis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Reference Floating Interest Rate</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_LongtermBorrowingsGross" xlink:label="gsm_LongtermBorrowingsGross" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_LongtermBorrowingsGross" xlink:to="gsm_LongtermBorrowingsGross_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_LongtermBorrowingsGross_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of long term debt before accrued charges and issuance costs.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_LongtermBorrowingsGross_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Longterm Borrowings Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_LongtermBorrowingsGross_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Principal amount</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="gsm_LongtermBorrowingsGross_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-Current Principal Amount</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsDeferredFinanceCostsNet" xlink:label="gsm_IfrsDeferredFinanceCostsNet" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsDeferredFinanceCostsNet" xlink:to="gsm_IfrsDeferredFinanceCostsNet_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsDeferredFinanceCostsNet_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsDeferredFinanceCostsNet_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">IFRS Deferred Finance Costs Net</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsDeferredFinanceCostsNet_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Issuance costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="gsm_IfrsDeferredFinanceCostsNet_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Unamortised issuance costs</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_InterestPayable" xlink:label="ifrs-full_InterestPayable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestPayable" xlink:to="ifrs-full_InterestPayable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InterestPayable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InterestPayable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Accrued interest</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings" xlink:label="ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings" xlink:to="ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current borrowings and current portion of non-current borrowings</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount due for settlement within 12 months</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TypesOfInterestRatesAxis" xlink:label="ifrs-full_TypesOfInterestRatesAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TypesOfInterestRatesAxis" xlink:to="ifrs-full_TypesOfInterestRatesAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TypesOfInterestRatesAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Types of interest rates [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_InterestRateTypesMember" xlink:label="ifrs-full_InterestRateTypesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestRateTypesMember" xlink:to="ifrs-full_InterestRateTypesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InterestRateTypesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest Rate Types [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InterestRateTypesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest rate types [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_FloatingInterestRateMember" xlink:label="ifrs-full_FloatingInterestRateMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FloatingInterestRateMember" xlink:to="ifrs-full_FloatingInterestRateMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FloatingInterestRateMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Floating Interest Rate [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FloatingInterestRateMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Floating rate</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsLondonInterbankOfferedRateLiborMember" xlink:label="gsm_IfrsLondonInterbankOfferedRateLiborMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsLondonInterbankOfferedRateLiborMember" xlink:to="gsm_IfrsLondonInterbankOfferedRateLiborMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsLondonInterbankOfferedRateLiborMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest rate at which a bank borrows funds from other banks in the London interbank market.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsLondonInterbankOfferedRateLiborMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs London Interbank Offered Rate Libor [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsLondonInterbankOfferedRateLiborMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">LIBOR</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsBaseRateMember" xlink:label="gsm_IfrsBaseRateMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsBaseRateMember" xlink:to="gsm_IfrsBaseRateMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsBaseRateMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Minimum rate investor will accept.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsBaseRateMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs Base Rate [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsBaseRateMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Base rate</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FedOvernightBankFundingRateMember" xlink:label="gsm_FedOvernightBankFundingRateMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FedOvernightBankFundingRateMember" xlink:to="gsm_FedOvernightBankFundingRateMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FedOvernightBankFundingRateMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">na</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FedOvernightBankFundingRateMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Fed Overnight Bank Funding Rate [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FedOvernightBankFundingRateMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Fed Overnight Bank Funding Rate</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_EurocurrencyRateBasisMember" xlink:label="gsm_EurocurrencyRateBasisMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_EurocurrencyRateBasisMember" xlink:to="gsm_EurocurrencyRateBasisMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_EurocurrencyRateBasisMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Information related to U.S. federal funds rate basis</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_EurocurrencyRateBasisMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Eurocurrency Rate Basis [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_EurocurrencyRateBasisMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Eurocurrency Rate Basis</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_AmendedRevolvingCreditFacilityMember" xlink:label="gsm_AmendedRevolvingCreditFacilityMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_AmendedRevolvingCreditFacilityMember" xlink:to="gsm_AmendedRevolvingCreditFacilityMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_AmendedRevolvingCreditFacilityMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for amended revolving credit facility.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_AmendedRevolvingCreditFacilityMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amended Revolving Credit Facility [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_AmendedRevolvingCreditFacilityMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amended revolving credit facility</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_BorrowingsAdjustmentToInterestRateBasis" xlink:label="ifrs-full_BorrowingsAdjustmentToInterestRateBasis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BorrowingsAdjustmentToInterestRateBasis" xlink:to="ifrs-full_BorrowingsAdjustmentToInterestRateBasis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BorrowingsAdjustmentToInterestRateBasis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Borrowings, adjustment to interest rate basis</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_BorrowingsAdjustmentToInterestRateBasis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Applicable margin (as a percent)</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ShortTermBorrowingsGross" xlink:label="gsm_ShortTermBorrowingsGross" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ShortTermBorrowingsGross" xlink:to="gsm_ShortTermBorrowingsGross_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ShortTermBorrowingsGross_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Short-term Borrowings, Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ShortTermBorrowingsGross_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Short-term Borrowings, Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ShortTermBorrowingsGross_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current Principal Amount</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_BorrowingsGross" xlink:label="gsm_BorrowingsGross" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_BorrowingsGross" xlink:to="gsm_BorrowingsGross_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_BorrowingsGross_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Borrowings, Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_BorrowingsGross_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Borrowings, Gross</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gsm_BorrowingsGross_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable" xlink:label="ifrs-full_DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable" xlink:to="ifrs-full_DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of finance lease and operating lease by lessee [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember" xlink:label="ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember" xlink:to="ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Later Than One Year And Not Later Than Five Years [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LaterThanOneYearAndNotLaterThanFiveYearsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Between one and five years</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LaterThanFiveYearsMember" xlink:label="ifrs-full_LaterThanFiveYearsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanFiveYearsMember" xlink:to="ifrs-full_LaterThanFiveYearsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LaterThanFiveYearsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Later Than Five Years [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LaterThanFiveYearsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Later than five years [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_HydroelectricalInstallationsIncludingPowerLinesAndConcessionsMember" xlink:label="gsm_HydroelectricalInstallationsIncludingPowerLinesAndConcessionsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_HydroelectricalInstallationsIncludingPowerLinesAndConcessionsMember" xlink:to="gsm_HydroelectricalInstallationsIncludingPowerLinesAndConcessionsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_HydroelectricalInstallationsIncludingPowerLinesAndConcessionsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Information related to hydroelectrical installations (including power lines and concessions) equipment under finance leases.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_HydroelectricalInstallationsIncludingPowerLinesAndConcessionsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Hydroelectrical Installations Including Power Lines And Concessions [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_HydroelectricalInstallationsIncludingPowerLinesAndConcessionsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Hydroelectrical installations (including power lines and concessions)</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FinanceLeasesOtherThanHydroelectricalInstallationsPowerLinesAndConcessionsMember" xlink:label="gsm_FinanceLeasesOtherThanHydroelectricalInstallationsPowerLinesAndConcessionsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FinanceLeasesOtherThanHydroelectricalInstallationsPowerLinesAndConcessionsMember" xlink:to="gsm_FinanceLeasesOtherThanHydroelectricalInstallationsPowerLinesAndConcessionsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FinanceLeasesOtherThanHydroelectricalInstallationsPowerLinesAndConcessionsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Information related to equipment other than hydroelectrical installations, power lines and concessions under finance leases.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FinanceLeasesOtherThanHydroelectricalInstallationsPowerLinesAndConcessionsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Finance Leases Other Than Hydroelectrical Installations Power Lines And Concessions [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FinanceLeasesOtherThanHydroelectricalInstallationsPowerLinesAndConcessionsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other finance leases</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems" xlink:label="ifrs-full_DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems" xlink:to="ifrs-full_DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of finance lease and operating lease by lessee [line items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LeaseLiabilitiesAbstract" xlink:label="ifrs-full_LeaseLiabilitiesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LeaseLiabilitiesAbstract" xlink:to="ifrs-full_LeaseLiabilitiesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LeaseLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Lease liabilities [abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_FinanceLeaseLiabilities" xlink:label="ifrs-full_FinanceLeaseLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinanceLeaseLiabilities" xlink:to="ifrs-full_FinanceLeaseLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinanceLeaseLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Finance lease liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_FinanceLeaseLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfLoanInstallmentsPayable" xlink:label="gsm_NumberOfLoanInstallmentsPayable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberOfLoanInstallmentsPayable" xlink:to="gsm_NumberOfLoanInstallmentsPayable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfLoanInstallmentsPayable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the number of instalments that the loan is to be repaid.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfLoanInstallmentsPayable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number Of Loan Installments Payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NumberOfLoanInstallmentsPayable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of loan installments</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FinanceLeasesAbstract" xlink:label="gsm_FinanceLeasesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FinanceLeasesAbstract" xlink:to="gsm_FinanceLeasesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FinanceLeasesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FinanceLeasesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Finance Leases [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_MinimumFinanceLeasePaymentsPayableAtPresentValue" xlink:label="ifrs-full_MinimumFinanceLeasePaymentsPayableAtPresentValue" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MinimumFinanceLeasePaymentsPayableAtPresentValue" xlink:to="ifrs-full_MinimumFinanceLeasePaymentsPayableAtPresentValue_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MinimumFinanceLeasePaymentsPayableAtPresentValue_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Minimum finance lease payments payable, at present value</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_OperatingLeasesAbstract" xlink:label="gsm_OperatingLeasesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_OperatingLeasesAbstract" xlink:to="gsm_OperatingLeasesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_OperatingLeasesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_OperatingLeasesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Operating Leases [Abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease" xlink:label="ifrs-full_MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease" xlink:to="ifrs-full_MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Minimum lease payments payable under non-cancellable operating lease</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Minimum Operating Lease Payments</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfFinancialInstrumentsTable" xlink:label="ifrs-full_DisclosureOfFinancialInstrumentsTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsTable" xlink:to="ifrs-full_DisclosureOfFinancialInstrumentsTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinancialInstrumentsTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of detailed information about financial instruments [table]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GrupoVillarMirS.a.u.Member" xlink:label="gsm_GrupoVillarMirS.a.u.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GrupoVillarMirS.a.u.Member" xlink:to="gsm_GrupoVillarMirS.a.u.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GrupoVillarMirS.a.u.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Grupo Villar Mir, S.A.U.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GrupoVillarMirS.a.u.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grupo Villar Mir S.a.u. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GrupoVillarMirS.a.u.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grupo Villar Mir, S.A.U.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_SeniorNotesDue2022Member" xlink:label="gsm_SeniorNotesDue2022Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_SeniorNotesDue2022Member" xlink:to="gsm_SeniorNotesDue2022Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_SeniorNotesDue2022Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for senior notes due 2022.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_SeniorNotesDue2022Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Senior Notes Due2022 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_SeniorNotesDue2022Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Senior Notes due 2022</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_SeniorNotesDue2022IssuedByFerroglobePlcMember" xlink:label="gsm_SeniorNotesDue2022IssuedByFerroglobePlcMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_SeniorNotesDue2022IssuedByFerroglobePlcMember" xlink:to="gsm_SeniorNotesDue2022IssuedByFerroglobePlcMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_SeniorNotesDue2022IssuedByFerroglobePlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Senior Notes&#xA0;due 2022 issued by Ferroglobe PLC .</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_SeniorNotesDue2022IssuedByFerroglobePlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Senior Notes Due2022 Issued By Ferroglobe Plc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_SeniorNotesDue2022IssuedByFerroglobePlcMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Senior Notes due 2022 issued by Ferroglobe PLC</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_SeniorNotesDue2022IssuedByGlobeSpecialtyMetalsIncMember" xlink:label="gsm_SeniorNotesDue2022IssuedByGlobeSpecialtyMetalsIncMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_SeniorNotesDue2022IssuedByGlobeSpecialtyMetalsIncMember" xlink:to="gsm_SeniorNotesDue2022IssuedByGlobeSpecialtyMetalsIncMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_SeniorNotesDue2022IssuedByGlobeSpecialtyMetalsIncMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Senior Notes&#xA0;due 2022 issued by Globe Specialty Metals, Inc.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_SeniorNotesDue2022IssuedByGlobeSpecialtyMetalsIncMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Senior Notes Due2022 Issued By Globe Specialty Metals Inc [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_SeniorNotesDue2022IssuedByGlobeSpecialtyMetalsIncMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Senior Notes due 2022 issued by Globe Specialty Metals, Inc</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:label="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsLineItems" xlink:to="ifrs-full_DisclosureOfFinancialInstrumentsLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinancialInstrumentsLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of detailed information about financial instruments [line items]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DebtInstrumentsInformationAbstract" xlink:label="gsm_DebtInstrumentsInformationAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DebtInstrumentsInformationAbstract" xlink:to="gsm_DebtInstrumentsInformationAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DebtInstrumentsInformationAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DebtInstrumentsInformationAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Debt Instruments Information [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DebtInstrumentsInformationAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Debt Instruments</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DeferredFinanceCosts" xlink:label="gsm_DeferredFinanceCosts" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DeferredFinanceCosts" xlink:to="gsm_DeferredFinanceCosts_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DeferredFinanceCosts_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount, before accumulated amortisation, of debt issuance costs.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DeferredFinanceCosts_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Unamortised Debt Issuance Costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gsm_DeferredFinanceCosts_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Unamortised issuance costs</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_AccruedCouponInterestOnDebtInstruments" xlink:label="gsm_AccruedCouponInterestOnDebtInstruments" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_AccruedCouponInterestOnDebtInstruments" xlink:to="gsm_AccruedCouponInterestOnDebtInstruments_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_AccruedCouponInterestOnDebtInstruments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount of accrued coupon interest on debt instruments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_AccruedCouponInterestOnDebtInstruments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Accrued Coupon Interest On Debt Instruments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_AccruedCouponInterestOnDebtInstruments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Accrued coupon interest</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsDebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed" xlink:label="gsm_IfrsDebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsDebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed" xlink:to="gsm_IfrsDebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsDebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of principal amount of debt that may be redeemed.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsDebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">ifrs Debt instrument, redemption price, percentage of principal amount redeemed</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsDebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Potential redemption of notes as a percentage of aggregate principal amount</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsDebtInstrumentRedemptionPricePercentage" xlink:label="gsm_IfrsDebtInstrumentRedemptionPricePercentage" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsDebtInstrumentRedemptionPricePercentage" xlink:to="gsm_IfrsDebtInstrumentRedemptionPricePercentage_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsDebtInstrumentRedemptionPricePercentage_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsDebtInstrumentRedemptionPricePercentage_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">ifrs Debt Instrument, Redemption Price, Percentage</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsDebtInstrumentRedemptionPricePercentage_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Redemption price of notes</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsNotesPayableFairValueDisclosure" xlink:label="gsm_IfrsNotesPayableFairValueDisclosure" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsNotesPayableFairValueDisclosure" xlink:to="gsm_IfrsNotesPayableFairValueDisclosure_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsNotesPayableFairValueDisclosure_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Fair value portion of notes payable.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsNotesPayableFairValueDisclosure_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">IFRS Notes Payable Fair Value Disclosure</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsNotesPayableFairValueDisclosure_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Fair value of notes payable</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesTable" xlink:label="ifrs-full_DisclosureOfFinancialLiabilitiesTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinancialLiabilitiesTable" xlink:to="ifrs-full_DisclosureOfFinancialLiabilitiesTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinancialLiabilitiesTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of financial liabilities [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsAxis" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Classes of financial instruments [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ClassesOfFinancialInstrumentsMember" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfFinancialInstrumentsMember" xlink:to="ifrs-full_ClassesOfFinancialInstrumentsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Classes Of Financial Instruments [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ClassesOfFinancialInstrumentsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial instruments, class [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FinancialLoansWithGovernmentsAgenciesMember" xlink:label="gsm_FinancialLoansWithGovernmentsAgenciesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FinancialLoansWithGovernmentsAgenciesMember" xlink:to="gsm_FinancialLoansWithGovernmentsAgenciesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FinancialLoansWithGovernmentsAgenciesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Information related to financial loans with governments agencies.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FinancialLoansWithGovernmentsAgenciesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial Loans With Governments Agencies [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FinancialLoansWithGovernmentsAgenciesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial Loans With Governments Agencies [Member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_LoanNumber1Member" xlink:label="gsm_LoanNumber1Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_LoanNumber1Member" xlink:to="gsm_LoanNumber1Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_LoanNumber1Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_LoanNumber1Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Loan Number1 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_LoanNumber1Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Loan Number 1 [Member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_LoanNumber2Member" xlink:label="gsm_LoanNumber2Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_LoanNumber2Member" xlink:to="gsm_LoanNumber2Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_LoanNumber2Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_LoanNumber2Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Loan Number2 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_LoanNumber2Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Loan Number 2 [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DerivativesMember" xlink:label="ifrs-full_DerivativesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DerivativesMember" xlink:to="ifrs-full_DerivativesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DerivativesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Derivatives [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DerivativesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Derivatives [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:label="ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinancialLiabilitiesLineItems" xlink:to="ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinancialLiabilitiesLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of financial liabilities [line items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CategoriesOfFinancialLiabilitiesAbstract" xlink:label="ifrs-full_CategoriesOfFinancialLiabilitiesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CategoriesOfFinancialLiabilitiesAbstract" xlink:to="ifrs-full_CategoriesOfFinancialLiabilitiesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CategoriesOfFinancialLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Categories of financial liabilities [abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CategoriesOfFinancialLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other financial liabilities</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FinancialLoansWithGovernmentsAgenciesAbstract" xlink:label="gsm_FinancialLoansWithGovernmentsAgenciesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FinancialLoansWithGovernmentsAgenciesAbstract" xlink:to="gsm_FinancialLoansWithGovernmentsAgenciesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FinancialLoansWithGovernmentsAgenciesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FinancialLoansWithGovernmentsAgenciesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial Loans With Governments Agencies [Abstract]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfLoanAgreementsEnteredInto" xlink:label="gsm_NumberOfLoanAgreementsEnteredInto" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberOfLoanAgreementsEnteredInto" xlink:to="gsm_NumberOfLoanAgreementsEnteredInto_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfLoanAgreementsEnteredInto_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the number of loan agreements that were entered into.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfLoanAgreementsEnteredInto_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number Of Loan Agreements Entered Into</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NumberOfLoanAgreementsEnteredInto_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of loan agreements</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LoansReceived" xlink:label="ifrs-full_LoansReceived" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LoansReceived" xlink:to="ifrs-full_LoansReceived_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LoansReceived_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Loans received</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_BorrowingsTerm" xlink:label="gsm_BorrowingsTerm" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_BorrowingsTerm" xlink:to="gsm_BorrowingsTerm_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_BorrowingsTerm_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Period of time between issuance and maturity of bank borrowings , in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_BorrowingsTerm_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Borrowings Term</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_BorrowingsTermGracePeriod" xlink:label="gsm_BorrowingsTermGracePeriod" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_BorrowingsTermGracePeriod" xlink:to="gsm_BorrowingsTermGracePeriod_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_BorrowingsTermGracePeriod_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Length of the grace period for no installments due at the beginning of the loan.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_BorrowingsTermGracePeriod_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Borrowings Term Grace Period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_BorrowingsTermGracePeriod_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grace period at start of loan</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_FinancialLiabilitiesAtAmortisedCost" xlink:label="ifrs-full_FinancialLiabilitiesAtAmortisedCost" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinancialLiabilitiesAtAmortisedCost" xlink:to="ifrs-full_FinancialLiabilitiesAtAmortisedCost_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinancialLiabilitiesAtAmortisedCost_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial liabilities at amortised cost</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FinancialLiabilitiesAtAmortisedCost_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amortized cost</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_LaterThanSixYearsAndNotLaterSevenYearsMember" xlink:label="gsm_LaterThanSixYearsAndNotLaterSevenYearsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_LaterThanSixYearsAndNotLaterSevenYearsMember" xlink:to="gsm_LaterThanSixYearsAndNotLaterSevenYearsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_LaterThanSixYearsAndNotLaterSevenYearsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for a time band of later than six years and not later than seven years.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_LaterThanSixYearsAndNotLaterSevenYearsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Later Than Six Years And Not Later Seven Years [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_LaterThanSixYearsAndNotLaterSevenYearsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Later Than Six Years And Not Later Seven Years [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_HedgingInstrumentsAxis" xlink:label="ifrs-full_HedgingInstrumentsAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_HedgingInstrumentsAxis" xlink:to="ifrs-full_HedgingInstrumentsAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_HedgingInstrumentsAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Hedging instruments [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_HedgingInstrumentsMember" xlink:label="ifrs-full_HedgingInstrumentsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_HedgingInstrumentsMember" xlink:to="ifrs-full_HedgingInstrumentsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_HedgingInstrumentsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Hedging Instruments [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_HedgingInstrumentsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Hedging instruments</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsDesignatedAsHedgingInstrumentMember" xlink:label="gsm_IfrsDesignatedAsHedgingInstrumentMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsDesignatedAsHedgingInstrumentMember" xlink:to="gsm_IfrsDesignatedAsHedgingInstrumentMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsDesignatedAsHedgingInstrumentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Derivative instrument designated as hedging instrument.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsDesignatedAsHedgingInstrumentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs Designated As Hedging Instrument [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsDesignatedAsHedgingInstrumentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Derivatives designated as hedging instruments</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsNondesignatedMember" xlink:label="gsm_IfrsNondesignatedMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsNondesignatedMember" xlink:to="gsm_IfrsNondesignatedMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsNondesignatedMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Derivative instrument not designated as hedging instrument.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsNondesignatedMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs Nondesignated [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsNondesignatedMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Derivatives not designated as hedging instruments</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TypesOfHedgesAxis" xlink:label="ifrs-full_TypesOfHedgesAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TypesOfHedgesAxis" xlink:to="ifrs-full_TypesOfHedgesAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TypesOfHedgesAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Types of hedges [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TypesOfHedgesMember" xlink:label="ifrs-full_TypesOfHedgesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TypesOfHedgesMember" xlink:to="ifrs-full_TypesOfHedgesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TypesOfHedgesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Types Of Hedges [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TypesOfHedgesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Hedges [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CashFlowHedgesMember" xlink:label="ifrs-full_CashFlowHedgesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CashFlowHedgesMember" xlink:to="ifrs-full_CashFlowHedgesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CashFlowHedgesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash Flow Hedges [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CashFlowHedgesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash flow hedges [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrencySwapContractMember" xlink:label="ifrs-full_CurrencySwapContractMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrencySwapContractMember" xlink:to="ifrs-full_CurrencySwapContractMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrencySwapContractMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Currency Swap Contract [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrencySwapContractMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cross currency swap</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_InterestRateSwapContractMember" xlink:label="ifrs-full_InterestRateSwapContractMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestRateSwapContractMember" xlink:to="ifrs-full_InterestRateSwapContractMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InterestRateSwapContractMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest Rate Swap Contract [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InterestRateSwapContractMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest rate swap contract [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsIncomeStatementLocationAxis" xlink:label="gsm_IfrsIncomeStatementLocationAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsIncomeStatementLocationAxis" xlink:to="gsm_IfrsIncomeStatementLocationAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsIncomeStatementLocationAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Information by location in the income statement.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsIncomeStatementLocationAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">IFRS Income Statement Location Axis</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsIncomeStatementLocationDomain" xlink:label="gsm_IfrsIncomeStatementLocationDomain" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsIncomeStatementLocationDomain" xlink:to="gsm_IfrsIncomeStatementLocationDomain_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsIncomeStatementLocationDomain_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Information by location in the income statement.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsIncomeStatementLocationDomain_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs Income Statement Location [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsIncomeStatementLocationDomain_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">IFRS Income Statement Location [Domain]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsForeignCurrencyGainLossMember" xlink:label="gsm_IfrsForeignCurrencyGainLossMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsForeignCurrencyGainLossMember" xlink:to="gsm_IfrsForeignCurrencyGainLossMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsForeignCurrencyGainLossMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the gains and losses due to foreign currency changes.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsForeignCurrencyGainLossMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs Foreign Currency Gain Loss [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsForeignCurrencyGainLossMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Exchange differences</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FinanceExpenseMember" xlink:label="gsm_FinanceExpenseMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FinanceExpenseMember" xlink:to="gsm_FinanceExpenseMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FinanceExpenseMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the information pertaining to finance expense.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FinanceExpenseMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Finance Expense [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FinanceExpenseMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Finance costs</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_FixedInterestRateMember" xlink:label="ifrs-full_FixedInterestRateMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FixedInterestRateMember" xlink:to="ifrs-full_FixedInterestRateMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FixedInterestRateMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Fixed Interest Rate [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FixedInterestRateMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Fixed rate</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_FinancialLiabilitiesAtFairValue" xlink:label="ifrs-full_FinancialLiabilitiesAtFairValue" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinancialLiabilitiesAtFairValue" xlink:to="ifrs-full_FinancialLiabilitiesAtFairValue_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinancialLiabilitiesAtFairValue_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial liabilities, at fair value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_FinancialLiabilitiesAtFairValue_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Market value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FinancialLiabilitiesAtFairValue_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Market value</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ForeignCurrencySwapsForwardsAbstract" xlink:label="gsm_ForeignCurrencySwapsForwardsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ForeignCurrencySwapsForwardsAbstract" xlink:to="gsm_ForeignCurrencySwapsForwardsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ForeignCurrencySwapsForwardsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ForeignCurrencySwapsForwardsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Foreign Currency Swaps Forwards [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ForeignCurrencySwapsForwardsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Foreign Currency Swaps</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_InterestIncomeFixedRate" xlink:label="gsm_InterestIncomeFixedRate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_InterestIncomeFixedRate" xlink:to="gsm_InterestIncomeFixedRate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_InterestIncomeFixedRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the rate of interest income to be received.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_InterestIncomeFixedRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest Income Fixed Rate</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_InterestIncomeFixedRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest receivable (as a percent)</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInOtherComprehensiveIncome" xlink:label="ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInOtherComprehensiveIncome" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInOtherComprehensiveIncome" xlink:to="ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInOtherComprehensiveIncome_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInOtherComprehensiveIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gain (loss) on hedge ineffectiveness recognised in other comprehensive income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GainLossOnHedgeIneffectivenessRecognisedInOtherComprehensiveIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gain (loss) on ineffective hedge recognized in other comprehensive income</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_GainLossOnChangeInFairValueOfHedgedItemUsedAsBasisForRecognisingHedgeIneffectiveness" xlink:label="ifrs-full_GainLossOnChangeInFairValueOfHedgedItemUsedAsBasisForRecognisingHedgeIneffectiveness" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainLossOnChangeInFairValueOfHedgedItemUsedAsBasisForRecognisingHedgeIneffectiveness" xlink:to="ifrs-full_GainLossOnChangeInFairValueOfHedgedItemUsedAsBasisForRecognisingHedgeIneffectiveness_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainLossOnChangeInFairValueOfHedgedItemUsedAsBasisForRecognisingHedgeIneffectiveness_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gain (loss) on change in fair value of hedged item used as basis for recognising hedge ineffectiveness</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CumulativeGainLossPreviouslyRecognisedInOtherComprehensiveIncomeArisingFromReclassificationOfFinancialAssetsOutOfFairValueThroughOtherComprehensiveIncomeIntoFairValueThroughProfitOrLossMeasurementCategory" xlink:label="ifrs-full_CumulativeGainLossPreviouslyRecognisedInOtherComprehensiveIncomeArisingFromReclassificationOfFinancialAssetsOutOfFairValueThroughOtherComprehensiveIncomeIntoFairValueThroughProfitOrLossMeasurementCategory" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CumulativeGainLossPreviouslyRecognisedInOtherComprehensiveIncomeArisingFromReclassificationOfFinancialAssetsOutOfFairValueThroughOtherComprehensiveIncomeIntoFairValueThroughProfitOrLossMeasurementCategory" xlink:to="ifrs-full_CumulativeGainLossPreviouslyRecognisedInOtherComprehensiveIncomeArisingFromReclassificationOfFinancialAssetsOutOfFairValueThroughOtherComprehensiveIncomeIntoFairValueThroughProfitOrLossMeasurementCategory_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CumulativeGainLossPreviouslyRecognisedInOtherComprehensiveIncomeArisingFromReclassificationOfFinancialAssetsOutOfFairValueThroughOtherComprehensiveIncomeIntoFairValueThroughProfitOrLossMeasurementCategory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cumulative gain (loss) previously recognised in other comprehensive income arising from reclassification of financial assets out of fair value through other comprehensive income into fair value through profit or loss measurement category</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CumulativeGainLossPreviouslyRecognisedInOtherComprehensiveIncomeArisingFromReclassificationOfFinancialAssetsOutOfFairValueThroughOtherComprehensiveIncomeIntoFairValueThroughProfitOrLossMeasurementCategory_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gain (loss) transferred from valuation adjustment reserve to income statement</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ReserveOfCashFlowHedges" xlink:label="ifrs-full_ReserveOfCashFlowHedges" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ReserveOfCashFlowHedges" xlink:to="ifrs-full_ReserveOfCashFlowHedges_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ReserveOfCashFlowHedges_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Reserve of cash flow hedges</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ReserveOfCashFlowHedges_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Balance of CCS remained in the valuation adjustment reserve</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TradingIncomeExpenseOnDerivativeFinancialInstruments" xlink:label="ifrs-full_TradingIncomeExpenseOnDerivativeFinancialInstruments" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradingIncomeExpenseOnDerivativeFinancialInstruments" xlink:to="ifrs-full_TradingIncomeExpenseOnDerivativeFinancialInstruments_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradingIncomeExpenseOnDerivativeFinancialInstruments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trading income (expense) on derivative financial instruments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TradingIncomeExpenseOnDerivativeFinancialInstruments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Income (Expense) recorded in financial derivative loss</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_LeaseOfHydroelectricalInstallationsMember" xlink:label="gsm_LeaseOfHydroelectricalInstallationsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_LeaseOfHydroelectricalInstallationsMember" xlink:to="gsm_LeaseOfHydroelectricalInstallationsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_LeaseOfHydroelectricalInstallationsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Information related to interest rate swaps linked to lease of hydroelectrical installations.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_LeaseOfHydroelectricalInstallationsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Lease Of Hydroelectrical Installations [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_LeaseOfHydroelectricalInstallationsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Lease Of Hydroelectrical Installations [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ReserveOfCashFlowHedgesHedgingRelationshipsForWhichHedgeAccountingIsNoLongerApplied" xlink:label="ifrs-full_ReserveOfCashFlowHedgesHedgingRelationshipsForWhichHedgeAccountingIsNoLongerApplied" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ReserveOfCashFlowHedgesHedgingRelationshipsForWhichHedgeAccountingIsNoLongerApplied" xlink:to="ifrs-full_ReserveOfCashFlowHedgesHedgingRelationshipsForWhichHedgeAccountingIsNoLongerApplied_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ReserveOfCashFlowHedgesHedgingRelationshipsForWhichHedgeAccountingIsNoLongerApplied_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Reserve of cash flow hedges, hedging relationships for which hedge accounting is no longer applied</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ReserveOfCashFlowHedgesHedgingRelationshipsForWhichHedgeAccountingIsNoLongerApplied_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Valuation adjustments reserve related to hedging relationship for which hedge accounting no longer applied</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TradeAndOtherPayablesToTradeSuppliers" xlink:label="ifrs-full_TradeAndOtherPayablesToTradeSuppliers" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherPayablesToTradeSuppliers" xlink:to="ifrs-full_TradeAndOtherPayablesToTradeSuppliers_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherPayablesToTradeSuppliers_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade payables</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TradeAndOtherPayablesToTradeSuppliers_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Payable to suppliers</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TradeNotesAndBillsPayable" xlink:label="gsm_TradeNotesAndBillsPayable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TradeNotesAndBillsPayable" xlink:to="gsm_TradeNotesAndBillsPayable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TradeNotesAndBillsPayable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the amount due, to trade notes and bills payable.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TradeNotesAndBillsPayable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade Notes And Bills Payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_TradeNotesAndBillsPayable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade notes and bills payable</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TradeAndOtherPayables" xlink:label="ifrs-full_TradeAndOtherPayables" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherPayables" xlink:to="ifrs-full_TradeAndOtherPayables_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherPayables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade and other payables</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_TradeAndOtherPayables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NoncurrentPayablesForPurchaseOfNoncurrentAssets" xlink:label="ifrs-full_NoncurrentPayablesForPurchaseOfNoncurrentAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NoncurrentPayablesForPurchaseOfNoncurrentAssets" xlink:to="ifrs-full_NoncurrentPayablesForPurchaseOfNoncurrentAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NoncurrentPayablesForPurchaseOfNoncurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-current payables for purchase of non-current assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NoncurrentPayablesForPurchaseOfNoncurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Payable to non-current asset suppliers - Non-Current</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentPayablesForPurchaseOfNoncurrentAssets" xlink:label="ifrs-full_CurrentPayablesForPurchaseOfNoncurrentAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentPayablesForPurchaseOfNoncurrentAssets" xlink:to="ifrs-full_CurrentPayablesForPurchaseOfNoncurrentAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentPayablesForPurchaseOfNoncurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current payables for purchase of non-current assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentPayablesForPurchaseOfNoncurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Payable to non-current asset suppliers - Current</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_PayablesForPurchaseOfNoncurrentAssets" xlink:label="ifrs-full_PayablesForPurchaseOfNoncurrentAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PayablesForPurchaseOfNoncurrentAssets" xlink:to="ifrs-full_PayablesForPurchaseOfNoncurrentAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PayablesForPurchaseOfNoncurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Payables for purchase of non-current assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_PayablesForPurchaseOfNoncurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Payable to non-current asset suppliers</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_PayablesForPurchaseOfNoncurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Payable to non-current asset suppliers</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GuaranteesAndDepositsNonCurrent" xlink:label="gsm_GuaranteesAndDepositsNonCurrent" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GuaranteesAndDepositsNonCurrent" xlink:to="gsm_GuaranteesAndDepositsNonCurrent_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GuaranteesAndDepositsNonCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of liabilities on non current guarantees and deposits.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GuaranteesAndDepositsNonCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Guarantees and deposits, non current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GuaranteesAndDepositsNonCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Guarantees and deposits - non-current</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GuaranteesAndDepositsCurrent" xlink:label="gsm_GuaranteesAndDepositsCurrent" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GuaranteesAndDepositsCurrent" xlink:to="gsm_GuaranteesAndDepositsCurrent_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GuaranteesAndDepositsCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of liabilities on current guarantees and deposits .</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GuaranteesAndDepositsCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Guarantees and deposits, current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GuaranteesAndDepositsCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Guarantees and deposits - current</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GuaranteesAndDepositsLiability" xlink:label="gsm_GuaranteesAndDepositsLiability" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GuaranteesAndDepositsLiability" xlink:to="gsm_GuaranteesAndDepositsLiability_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GuaranteesAndDepositsLiability_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of liabilities on guarantees and deposits.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GuaranteesAndDepositsLiability_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Guarantees and deposits liability</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gsm_GuaranteesAndDepositsLiability_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Guarantees and deposits</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_RemunerationPayableNonCurrent" xlink:label="gsm_RemunerationPayableNonCurrent" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_RemunerationPayableNonCurrent" xlink:to="gsm_RemunerationPayableNonCurrent_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_RemunerationPayableNonCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of liability on non-current remuneration payable.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_RemunerationPayableNonCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Remuneration payable non-current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_RemunerationPayableNonCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Remuneration payable - Non- current</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_RemunerationPayableCurrent" xlink:label="gsm_RemunerationPayableCurrent" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_RemunerationPayableCurrent" xlink:to="gsm_RemunerationPayableCurrent_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_RemunerationPayableCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of liability on current remuneration payable.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_RemunerationPayableCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Remuneration payable, current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_RemunerationPayableCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Remuneration payable - current</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_RemunerationPayable" xlink:label="gsm_RemunerationPayable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_RemunerationPayable" xlink:to="gsm_RemunerationPayable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_RemunerationPayable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of liability on remuneration payable.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_RemunerationPayable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Remuneration payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gsm_RemunerationPayable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Remuneration payable</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TaxPayablesNoncurrent" xlink:label="gsm_TaxPayablesNoncurrent" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TaxPayablesNoncurrent" xlink:to="gsm_TaxPayablesNoncurrent_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TaxPayablesNoncurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of liability on non current tax payables.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TaxPayablesNoncurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tax payables noncurrent</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_TaxPayablesNoncurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tax payables - non-current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gsm_TaxPayablesNoncurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total non-current tax payables</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TaxPayablesCurrent" xlink:label="gsm_TaxPayablesCurrent" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TaxPayablesCurrent" xlink:to="gsm_TaxPayablesCurrent_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TaxPayablesCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of liability on current tax payables.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TaxPayablesCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tax payables current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_TaxPayablesCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tax payables - current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gsm_TaxPayablesCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total current tax payables</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TaxPayables" xlink:label="gsm_TaxPayables" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TaxPayables" xlink:to="gsm_TaxPayables_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TaxPayables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of liability on tax payables.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TaxPayables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tax payables</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gsm_TaxPayables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total tax payables</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ContingentConsiderationNonCurrent" xlink:label="gsm_ContingentConsiderationNonCurrent" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ContingentConsiderationNonCurrent" xlink:to="gsm_ContingentConsiderationNonCurrent_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ContingentConsiderationNonCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The carrying balance as on the balance sheet date of contingent consideration non current.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ContingentConsiderationNonCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Contingent Consideration Non-Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ContingentConsiderationNonCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Contingent consideration - non -current</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ContingentConsiderationCurrent" xlink:label="gsm_ContingentConsiderationCurrent" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ContingentConsiderationCurrent" xlink:to="gsm_ContingentConsiderationCurrent_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ContingentConsiderationCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The carrying balance as on the balance sheet date of contingent consideration current.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ContingentConsiderationCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Contingent Consideration Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ContingentConsiderationCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Contingent consideration - current</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ContingentConsiderationCurrentAndNonCurrent" xlink:label="gsm_ContingentConsiderationCurrentAndNonCurrent" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ContingentConsiderationCurrentAndNonCurrent" xlink:to="gsm_ContingentConsiderationCurrentAndNonCurrent_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ContingentConsiderationCurrentAndNonCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The carrying balance as on the balance sheet date of contingent consideration current and non current.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ContingentConsiderationCurrentAndNonCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Contingent Consideration Current And Non-Current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gsm_ContingentConsiderationCurrentAndNonCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Contingent consideration</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_MiscellaneousOtherLiabilitiesNonCurrent" xlink:label="gsm_MiscellaneousOtherLiabilitiesNonCurrent" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_MiscellaneousOtherLiabilitiesNonCurrent" xlink:to="gsm_MiscellaneousOtherLiabilitiesNonCurrent_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_MiscellaneousOtherLiabilitiesNonCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of miscellaneous other non current liabilities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_MiscellaneousOtherLiabilitiesNonCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Miscellaneous other liabilities, non current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_MiscellaneousOtherLiabilitiesNonCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other liabilities - non-current</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_MiscellaneousOtherLiabilitiesCurrent" xlink:label="gsm_MiscellaneousOtherLiabilitiesCurrent" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_MiscellaneousOtherLiabilitiesCurrent" xlink:to="gsm_MiscellaneousOtherLiabilitiesCurrent_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_MiscellaneousOtherLiabilitiesCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of miscellaneous other current liabilities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_MiscellaneousOtherLiabilitiesCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Miscellaneous other liabilities, current</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_MiscellaneousOtherLiabilitiesCurrent_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other liabilities - current</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_MiscellaneousOtherLiabilities" xlink:label="gsm_MiscellaneousOtherLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_MiscellaneousOtherLiabilities" xlink:to="gsm_MiscellaneousOtherLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_MiscellaneousOtherLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of miscellaneous other liabilities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_MiscellaneousOtherLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Miscellaneous other liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gsm_MiscellaneousOtherLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherNoncurrentLiabilities" xlink:label="ifrs-full_OtherNoncurrentLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherNoncurrentLiabilities" xlink:to="ifrs-full_OtherNoncurrentLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherNoncurrentLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other non-current liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_OtherNoncurrentLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total other non current liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherLiabilities" xlink:label="ifrs-full_OtherLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherLiabilities" xlink:to="ifrs-full_OtherLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other liabilities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_OtherLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total other liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentValueAddedTaxPayables" xlink:label="ifrs-full_CurrentValueAddedTaxPayables" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentValueAddedTaxPayables" xlink:to="ifrs-full_CurrentValueAddedTaxPayables_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentValueAddedTaxPayables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current value added tax payables</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentValueAddedTaxPayables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">VAT, current</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ValueAddedTaxPayables" xlink:label="ifrs-full_ValueAddedTaxPayables" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ValueAddedTaxPayables" xlink:to="ifrs-full_ValueAddedTaxPayables_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ValueAddedTaxPayables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Value added tax payables</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_ValueAddedTaxPayables_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">VAT</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentPayablesOnSocialSecurityAndTaxesOtherThanIncomeTax" xlink:label="ifrs-full_CurrentPayablesOnSocialSecurityAndTaxesOtherThanIncomeTax" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentPayablesOnSocialSecurityAndTaxesOtherThanIncomeTax" xlink:to="ifrs-full_CurrentPayablesOnSocialSecurityAndTaxesOtherThanIncomeTax_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentPayablesOnSocialSecurityAndTaxesOtherThanIncomeTax_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current payables on social security and taxes other than income tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentPayablesOnSocialSecurityAndTaxesOtherThanIncomeTax_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Accrued social security taxes payable, current</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_PayablesOnSocialSecurityAndTaxesOtherThanIncomeTax" xlink:label="ifrs-full_PayablesOnSocialSecurityAndTaxesOtherThanIncomeTax" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PayablesOnSocialSecurityAndTaxesOtherThanIncomeTax" xlink:to="ifrs-full_PayablesOnSocialSecurityAndTaxesOtherThanIncomeTax_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PayablesOnSocialSecurityAndTaxesOtherThanIncomeTax_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Payables on social security and taxes other than income tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_PayablesOnSocialSecurityAndTaxesOtherThanIncomeTax_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Accrued social security taxes payable</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CurrentPayablesOnPersonalIncomeTaxWithholding" xlink:label="gsm_CurrentPayablesOnPersonalIncomeTaxWithholding" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CurrentPayablesOnPersonalIncomeTaxWithholding" xlink:to="gsm_CurrentPayablesOnPersonalIncomeTaxWithholding_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CurrentPayablesOnPersonalIncomeTaxWithholding_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of current payables on personal income tax withholding.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CurrentPayablesOnPersonalIncomeTaxWithholding_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current payables on personal income tax withholding</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_CurrentPayablesOnPersonalIncomeTaxWithholding_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Personal income tax withholding payable, current</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PayablesOnPersonalIncomeTaxWithholding" xlink:label="gsm_PayablesOnPersonalIncomeTaxWithholding" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PayablesOnPersonalIncomeTaxWithholding" xlink:to="gsm_PayablesOnPersonalIncomeTaxWithholding_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PayablesOnPersonalIncomeTaxWithholding_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of personal income tax withholdings payable.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PayablesOnPersonalIncomeTaxWithholding_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Payables on personal income tax withholding</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gsm_PayablesOnPersonalIncomeTaxWithholding_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Personal income tax withholding payable</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NonCurrentOtherTaxesPayable" xlink:label="gsm_NonCurrentOtherTaxesPayable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NonCurrentOtherTaxesPayable" xlink:to="gsm_NonCurrentOtherTaxesPayable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NonCurrentOtherTaxesPayable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of non current other taxes payable.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NonCurrentOtherTaxesPayable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non current other taxes payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NonCurrentOtherTaxesPayable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other tax payables, non current</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CurrentOtherTaxesPayable" xlink:label="gsm_CurrentOtherTaxesPayable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CurrentOtherTaxesPayable" xlink:to="gsm_CurrentOtherTaxesPayable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CurrentOtherTaxesPayable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of current other taxes payable.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CurrentOtherTaxesPayable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current other taxes payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_CurrentOtherTaxesPayable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other tax payables, current</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_OtherTaxesPayable" xlink:label="gsm_OtherTaxesPayable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_OtherTaxesPayable" xlink:to="gsm_OtherTaxesPayable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_OtherTaxesPayable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of other taxes payable.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_OtherTaxesPayable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other taxes payable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gsm_OtherTaxesPayable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other tax payables</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TermOfServiceCondition" xlink:label="gsm_TermOfServiceCondition" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TermOfServiceCondition" xlink:to="gsm_TermOfServiceCondition_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TermOfServiceCondition_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The term of service from date of grant as a condition of option vesting.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TermOfServiceCondition_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Term Of Service Condition</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_TermOfServiceCondition_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Service condition</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable" xlink:label="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable" xlink:to="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of terms and conditions of share-based payment arrangement [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:label="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems" xlink:to="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of terms and conditions of share-based payment arrangement [line items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NumberOfOutstandingShareOptions" xlink:label="ifrs-full_NumberOfOutstandingShareOptions" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfOutstandingShareOptions" xlink:to="ifrs-full_NumberOfOutstandingShareOptions_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NumberOfOutstandingShareOptions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of share options outstanding in share-based payment arrangement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_NumberOfOutstandingShareOptions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Outstanding at end of the period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_NumberOfOutstandingShareOptions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Outstanding at beginning of the period</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xlink:label="ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement" xlink:to="ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of share options granted in share-based payment arrangement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Options granted</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Granted during the period</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfShareOptionsExpiredOrForfeitedInShareBasedPaymentArrangement" xlink:label="gsm_NumberOfShareOptionsExpiredOrForfeitedInShareBasedPaymentArrangement" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberOfShareOptionsExpiredOrForfeitedInShareBasedPaymentArrangement" xlink:to="gsm_NumberOfShareOptionsExpiredOrForfeitedInShareBasedPaymentArrangement_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfShareOptionsExpiredOrForfeitedInShareBasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The number of share options expired or forfeited in a share-based payment arrangement.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfShareOptionsExpiredOrForfeitedInShareBasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number Of Share Options Expired Or Forfeited In Share-Based Payment Arrangement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gsm_NumberOfShareOptionsExpiredOrForfeitedInShareBasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Expired/forfeited during the period</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement" xlink:label="ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement" xlink:to="ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of share options exercisable in share-based payment arrangement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Exercisable</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_NumberOfShareOptionsExercisableInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Exercisable as of December 31, 2018 and December 31, 2017</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:label="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis" xlink:to="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TypesOfSharebasedPaymentArrangementsAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Types of share-based payment arrangements [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_SharebasedPaymentArrangementsMember" xlink:label="ifrs-full_SharebasedPaymentArrangementsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_SharebasedPaymentArrangementsMember" xlink:to="ifrs-full_SharebasedPaymentArrangementsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_SharebasedPaymentArrangementsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Sharebased Payment Arrangements [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_SharebasedPaymentArrangementsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Share-based payment arrangements [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsEmployeeStockOptionMember" xlink:label="gsm_IfrsEmployeeStockOptionMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsEmployeeStockOptionMember" xlink:to="gsm_IfrsEmployeeStockOptionMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsEmployeeStockOptionMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">An arrangement whereby an employee is entitled to receive in the future, subject to vesting and other restrictions, a number of shares in the entity at a specified price, as defined in the agreement. Although there are variations, normally, after vesting, when an option is exercised, the employee-holder pays the strike value in cash to the issuing employer-entity and receives equity shares. The equity shares can be sold into the market for cash at the current market price without restriction. Options may be used to attract, retain and incentivize employees, in addition to their regular salary and other benefits.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsEmployeeStockOptionMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs Employee Stock Option [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsEmployeeStockOptionMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Employee stock option</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_EquityIncentivePlanMember" xlink:label="gsm_EquityIncentivePlanMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_EquityIncentivePlanMember" xlink:to="gsm_EquityIncentivePlanMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_EquityIncentivePlanMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member represents equity incentive plan under employee stock options.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_EquityIncentivePlanMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Equity Incentive Plan [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_EquityIncentivePlanMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Equity incentive plan</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ShareBasedPaymentArrangementsGrantDateAxis" xlink:label="gsm_ShareBasedPaymentArrangementsGrantDateAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ShareBasedPaymentArrangementsGrantDateAxis" xlink:to="gsm_ShareBasedPaymentArrangementsGrantDateAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ShareBasedPaymentArrangementsGrantDateAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ShareBasedPaymentArrangementsGrantDateAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Share-based payment arrangements, Grant date [Axis]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ShareBasedPaymentArrangementsGrantDateMember" xlink:label="gsm_ShareBasedPaymentArrangementsGrantDateMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ShareBasedPaymentArrangementsGrantDateMember" xlink:to="gsm_ShareBasedPaymentArrangementsGrantDateMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ShareBasedPaymentArrangementsGrantDateMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Share-based payment arrangements, Grant date [member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ShareBasedPaymentArrangementsGrantDateMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Share Based Payment Arrangements Grant Date [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ShareBasedPaymentArrangementsGrantDateMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Share-based payment arrangements, Grant date [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GrantDate1Member" xlink:label="gsm_GrantDate1Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GrantDate1Member" xlink:to="gsm_GrantDate1Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GrantDate1Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grant Date 1 [member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GrantDate1Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grant Date1 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GrantDate1Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grant date of June 14, 2018</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GrantDate2Member" xlink:label="gsm_GrantDate2Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GrantDate2Member" xlink:to="gsm_GrantDate2Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GrantDate2Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grant Date 2 [member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GrantDate2Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grant Date2 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GrantDate2Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grant date of March 21, 2018</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GrantDate3Member" xlink:label="gsm_GrantDate3Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GrantDate3Member" xlink:to="gsm_GrantDate3Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GrantDate3Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grant Date 3 [member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GrantDate3Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grant Date3 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GrantDate3Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grant date of June 1, 2017</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GrantDate4Member" xlink:label="gsm_GrantDate4Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GrantDate4Member" xlink:to="gsm_GrantDate4Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GrantDate4Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grant Date 4 [member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GrantDate4Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grant Date4 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GrantDate4Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grant date of June 20, 2017</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GrantDate5Member" xlink:label="gsm_GrantDate5Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GrantDate5Member" xlink:to="gsm_GrantDate5Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GrantDate5Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grant Date 5 [member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GrantDate5Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grant Date5 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GrantDate5Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grant date of November 24, 2016</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NumberOfInstrumentsGrantedInSharebasedPaymentArrangement" xlink:label="ifrs-full_NumberOfInstrumentsGrantedInSharebasedPaymentArrangement" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfInstrumentsGrantedInSharebasedPaymentArrangement" xlink:to="ifrs-full_NumberOfInstrumentsGrantedInSharebasedPaymentArrangement_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NumberOfInstrumentsGrantedInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of instruments granted in share-based payment arrangement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NumberOfInstrumentsGrantedInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of instruments granted</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ExercisePriceShareOptionsGranted" xlink:label="ifrs-full_ExercisePriceShareOptionsGranted" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ExercisePriceShareOptionsGranted" xlink:to="ifrs-full_ExercisePriceShareOptionsGranted_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ExercisePriceShareOptionsGranted_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Exercise price, share options granted</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ExercisePriceShareOptionsGranted_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Exercise price</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_WeightedAverageSharePriceShareOptionsGranted" xlink:label="ifrs-full_WeightedAverageSharePriceShareOptionsGranted" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WeightedAverageSharePriceShareOptionsGranted" xlink:to="ifrs-full_WeightedAverageSharePriceShareOptionsGranted_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_WeightedAverageSharePriceShareOptionsGranted_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted average share price, share options granted</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_WeightedAverageSharePriceShareOptionsGranted_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grant date share price</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ShareBasedPaymentArrangementSharesSubjectToPerformanceConditionsOutstanding" xlink:label="gsm_ShareBasedPaymentArrangementSharesSubjectToPerformanceConditionsOutstanding" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ShareBasedPaymentArrangementSharesSubjectToPerformanceConditionsOutstanding" xlink:to="gsm_ShareBasedPaymentArrangementSharesSubjectToPerformanceConditionsOutstanding_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ShareBasedPaymentArrangementSharesSubjectToPerformanceConditionsOutstanding_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of shares outstanding which are subject to performance conditions under the share based payment arrangement.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ShareBasedPaymentArrangementSharesSubjectToPerformanceConditionsOutstanding_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Share Based Payment Arrangement, Shares Subject To Performance Conditions Outstanding</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ShareBasedPaymentArrangementSharesSubjectToPerformanceConditionsOutstanding_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Shares subject to performance conditions Outstanding</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ShareBasedPaymentsOptionsReceivableBasedOnCompanyPerformanceAsPercentage" xlink:label="gsm_ShareBasedPaymentsOptionsReceivableBasedOnCompanyPerformanceAsPercentage" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ShareBasedPaymentsOptionsReceivableBasedOnCompanyPerformanceAsPercentage" xlink:to="gsm_ShareBasedPaymentsOptionsReceivableBasedOnCompanyPerformanceAsPercentage_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ShareBasedPaymentsOptionsReceivableBasedOnCompanyPerformanceAsPercentage_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The options that may be received by a participant depending upon the financial performance of the company, as a percent of total options available under plan.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ShareBasedPaymentsOptionsReceivableBasedOnCompanyPerformanceAsPercentage_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Share Based Payments Options Receivable Based On Company Performance As Percentage</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ShareBasedPaymentsOptionsReceivableBasedOnCompanyPerformanceAsPercentage_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Options receivable by participant depending on financial performance of the Company, as a percent</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfOptionsWithNoPerformanceObligations" xlink:label="gsm_NumberOfOptionsWithNoPerformanceObligations" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberOfOptionsWithNoPerformanceObligations" xlink:to="gsm_NumberOfOptionsWithNoPerformanceObligations_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfOptionsWithNoPerformanceObligations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The number of options issued with no performance obligations.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfOptionsWithNoPerformanceObligations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number Of Options With No Performance Obligations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NumberOfOptionsWithNoPerformanceObligations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of options with no performance obligations</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PercentageOfTotalShareholderReturnRelativeToComparatorGroupVestingCondition" xlink:label="gsm_PercentageOfTotalShareholderReturnRelativeToComparatorGroupVestingCondition" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PercentageOfTotalShareholderReturnRelativeToComparatorGroupVestingCondition" xlink:to="gsm_PercentageOfTotalShareholderReturnRelativeToComparatorGroupVestingCondition_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PercentageOfTotalShareholderReturnRelativeToComparatorGroupVestingCondition_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The percentage of total shareholder return relative to a comparator group to meet for options vesting.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PercentageOfTotalShareholderReturnRelativeToComparatorGroupVestingCondition_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of total shareholder return relative to comparator group, vesting condition</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PercentageOfTotalShareholderReturnRelativeToComparatorGroupVestingCondition_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of total shareholder return (&#x201C;TSR&#x201D;) relative to a comparator group, vesting condition</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PercentageOfTotalShareholderReturnRelativeToMetalAndMiningIndex" xlink:label="gsm_PercentageOfTotalShareholderReturnRelativeToMetalAndMiningIndex" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PercentageOfTotalShareholderReturnRelativeToMetalAndMiningIndex" xlink:to="gsm_PercentageOfTotalShareholderReturnRelativeToMetalAndMiningIndex_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PercentageOfTotalShareholderReturnRelativeToMetalAndMiningIndex_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The percentage of total shareholder return relative to S&amp;P Global 1200 metals and mining index to meet for options vesting.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PercentageOfTotalShareholderReturnRelativeToMetalAndMiningIndex_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of total shareholder return relative to metal and mining index</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PercentageOfTotalShareholderReturnRelativeToMetalAndMiningIndex_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of TSR relative to S&amp;P Global 1200 Metals and Mining Index, vesting condition</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PercentageOfTotalShareholderReturnOnInvestedCapitalVestingCondition" xlink:label="gsm_PercentageOfTotalShareholderReturnOnInvestedCapitalVestingCondition" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PercentageOfTotalShareholderReturnOnInvestedCapitalVestingCondition" xlink:to="gsm_PercentageOfTotalShareholderReturnOnInvestedCapitalVestingCondition_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PercentageOfTotalShareholderReturnOnInvestedCapitalVestingCondition_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The percentage of total shareholder return on invested capital to meet for options vesting.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PercentageOfTotalShareholderReturnOnInvestedCapitalVestingCondition_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of total shareholder return on invested capital, vesting condition</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PercentageOfTotalShareholderReturnOnInvestedCapitalVestingCondition_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of return on invested capital, vesting condition</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PercentageOfNetOperatingProfitAfterTaxVestingCondition" xlink:label="gsm_PercentageOfNetOperatingProfitAfterTaxVestingCondition" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PercentageOfNetOperatingProfitAfterTaxVestingCondition" xlink:to="gsm_PercentageOfNetOperatingProfitAfterTaxVestingCondition_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PercentageOfNetOperatingProfitAfterTaxVestingCondition_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The percentage of return on net operating profit after tax to meet for options vesting.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PercentageOfNetOperatingProfitAfterTaxVestingCondition_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of net operating profit after tax, vesting condition</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PercentageOfNetOperatingProfitAfterTaxVestingCondition_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of net operating profit after tax, vesting condition</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted" xlink:label="ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted" xlink:to="ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted average fair value at measurement date, share options granted</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_WeightedAverageFairValueAtMeasurementDateShareOptionsGranted_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted average fair value of share options granted</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xlink:label="ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted" xlink:to="ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Expected volatility, share options granted</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Expected volatility</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfOptionLifeShareOptionsGranted" xlink:label="ifrs-full_DescriptionOfOptionLifeShareOptionsGranted" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfOptionLifeShareOptionsGranted" xlink:to="ifrs-full_DescriptionOfOptionLifeShareOptionsGranted_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfOptionLifeShareOptionsGranted_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Option life, share options granted</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfOptionLifeShareOptionsGranted_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Option life</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DescriptionOfOptionLifeShareOptionsGranted_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Expected term (years)</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xlink:label="ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted" xlink:to="ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Risk free interest rate, share options granted</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Risk-free interest rate</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PerformancePeriodRemainingAtGrantDate" xlink:label="gsm_PerformancePeriodRemainingAtGrantDate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PerformancePeriodRemainingAtGrantDate" xlink:to="gsm_PerformancePeriodRemainingAtGrantDate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PerformancePeriodRemainingAtGrantDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The performance condition period remaining at grant date.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PerformancePeriodRemainingAtGrantDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Performance period remaining at grant date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PerformancePeriodRemainingAtGrantDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Performance period remaining at grant date</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CompanyTotalShareholderReturnAtGrantDate" xlink:label="gsm_CompanyTotalShareholderReturnAtGrantDate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CompanyTotalShareholderReturnAtGrantDate" xlink:to="gsm_CompanyTotalShareholderReturnAtGrantDate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CompanyTotalShareholderReturnAtGrantDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The level of total shareholder returns within the Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CompanyTotalShareholderReturnAtGrantDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Company total shareholder return at grant date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_CompanyTotalShareholderReturnAtGrantDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Company TSR at grant date</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_MedianComparatorGroupTotalShareholderReturnAtGrantDate" xlink:label="gsm_MedianComparatorGroupTotalShareholderReturnAtGrantDate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_MedianComparatorGroupTotalShareholderReturnAtGrantDate" xlink:to="gsm_MedianComparatorGroupTotalShareholderReturnAtGrantDate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_MedianComparatorGroupTotalShareholderReturnAtGrantDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The level of total shareholder returns within median comparator group.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_MedianComparatorGroupTotalShareholderReturnAtGrantDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Median Comparator Group Total Shareholder Return at Grant Date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_MedianComparatorGroupTotalShareholderReturnAtGrantDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Median comparator group TSR at grant date</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_MedianIndexTotalShareholdersReturnAtGrantDate" xlink:label="gsm_MedianIndexTotalShareholdersReturnAtGrantDate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_MedianIndexTotalShareholdersReturnAtGrantDate" xlink:to="gsm_MedianIndexTotalShareholdersReturnAtGrantDate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_MedianIndexTotalShareholdersReturnAtGrantDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The level of total shareholders returns within median index.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_MedianIndexTotalShareholdersReturnAtGrantDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Median Index Total Shareholders Return at Grant Date</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_MedianIndexTotalShareholdersReturnAtGrantDate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Median index TSR at grant date</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PercentageOfCorrelationConsideredForIncorporatedInToValuationModel" xlink:label="gsm_PercentageOfCorrelationConsideredForIncorporatedInToValuationModel" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PercentageOfCorrelationConsideredForIncorporatedInToValuationModel" xlink:to="gsm_PercentageOfCorrelationConsideredForIncorporatedInToValuationModel_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PercentageOfCorrelationConsideredForIncorporatedInToValuationModel_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The percentage of correlation considered significant for incorporation into the valuation model.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PercentageOfCorrelationConsideredForIncorporatedInToValuationModel_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of correlation considered for incorporated in to valuation model</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PercentageOfCorrelationConsideredForIncorporatedInToValuationModel_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">TSR correlation considered significant</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees" xlink:label="ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees" xlink:to="ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Expense from share-based payment transactions with employees</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ExpenseFromSharebasedPaymentTransactionsWithEmployees_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Share based compensation expense</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions" xlink:label="ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions" xlink:to="ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted average remaining contractual life of outstanding share options</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted average remaining contractual term, outstanding</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroglobeStockOptionReplacementAwardsMember" xlink:label="gsm_FerroglobeStockOptionReplacementAwardsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroglobeStockOptionReplacementAwardsMember" xlink:to="gsm_FerroglobeStockOptionReplacementAwardsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroglobeStockOptionReplacementAwardsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The replacement stock option awards issued on the date of the business combination.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerroglobeStockOptionReplacementAwardsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroglobe Stock Option Replacement Awards [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroglobeStockOptionReplacementAwardsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroglobe Stock Option Replacement Awards</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfSharesExchangedUponBusinessCombination" xlink:label="gsm_NumberOfSharesExchangedUponBusinessCombination" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberOfSharesExchangedUponBusinessCombination" xlink:to="gsm_NumberOfSharesExchangedUponBusinessCombination_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfSharesExchangedUponBusinessCombination_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The number of shares exchanged for each share converted from globe common stock in to ferroglobe common stock.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfSharesExchangedUponBusinessCombination_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of shares exchanged upon business combination</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NumberOfSharesExchangedUponBusinessCombination_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of shares exchanged upon business combination</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfShareOptionsCanceledInLieuOfCashSettlementInShareBasedPaymentArrangement" xlink:label="gsm_NumberOfShareOptionsCanceledInLieuOfCashSettlementInShareBasedPaymentArrangement" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberOfShareOptionsCanceledInLieuOfCashSettlementInShareBasedPaymentArrangement" xlink:to="gsm_NumberOfShareOptionsCanceledInLieuOfCashSettlementInShareBasedPaymentArrangement_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfShareOptionsCanceledInLieuOfCashSettlementInShareBasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The number of share options canceled in lieu of cash settlement in a share-based payment arrangement.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfShareOptionsCanceledInLieuOfCashSettlementInShareBasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number Of Share Options Canceled In Lieu Of Cash Settlement In Share-Based Payment Arrangement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NumberOfShareOptionsCanceledInLieuOfCashSettlementInShareBasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cancelled in lieu of cash settlement</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NumberOfShareOptionsExpiredInSharebasedPaymentArrangement" xlink:label="ifrs-full_NumberOfShareOptionsExpiredInSharebasedPaymentArrangement" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfShareOptionsExpiredInSharebasedPaymentArrangement" xlink:to="ifrs-full_NumberOfShareOptionsExpiredInSharebasedPaymentArrangement_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NumberOfShareOptionsExpiredInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of share options expired in share-based payment arrangement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_NumberOfShareOptionsExpiredInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Expired</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement" xlink:label="ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement" xlink:to="ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted average exercise price of share options outstanding in share-based payment arrangement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted average exercise price at the end of the period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted average exercise price at the beginning of the period</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement" xlink:label="ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement" xlink:to="ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted average exercise price of share options exercised in share-based payment arrangement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted average exercise price, exercised</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement" xlink:label="ifrs-full_WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement" xlink:to="ifrs-full_WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted average exercise price of share options expired in share-based payment arrangement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted average exercise price, expired/forfeited</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_WeightedAverageExercisePriceOptionsCanceledInLieuOfCashSettlementInShareBasedPaymentArrangement" xlink:label="gsm_WeightedAverageExercisePriceOptionsCanceledInLieuOfCashSettlementInShareBasedPaymentArrangement" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_WeightedAverageExercisePriceOptionsCanceledInLieuOfCashSettlementInShareBasedPaymentArrangement" xlink:to="gsm_WeightedAverageExercisePriceOptionsCanceledInLieuOfCashSettlementInShareBasedPaymentArrangement_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_WeightedAverageExercisePriceOptionsCanceledInLieuOfCashSettlementInShareBasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted average exercise price options canceled in lieu of cash settlement in share-based payment arrangement.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_WeightedAverageExercisePriceOptionsCanceledInLieuOfCashSettlementInShareBasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted Average Exercise Price Options Canceled In Lieu Of Cash Settlement in Share-Based Payment Arrangement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_WeightedAverageExercisePriceOptionsCanceledInLieuOfCashSettlementInShareBasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted average exercise price of cancelled in lieu of cash settlement</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement" xlink:label="ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement" xlink:to="ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted average exercise price of share options exercisable in share-based payment arrangement</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:label="gsm_IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:to="gsm_IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs share based compensation arrangement by share based payment award options exercisable weighted average remaining contractual term1</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Weighted average remaining contractual term, exercisable</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:label="gsm_IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:to="gsm_IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs share based compensation arrangement by share based payment award options outstanding intrinsic value</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Aggregate intrinsic value of options outstanding</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfShareOptionsVestedInShareBasedPaymentArrangement" xlink:label="gsm_NumberOfShareOptionsVestedInShareBasedPaymentArrangement" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberOfShareOptionsVestedInShareBasedPaymentArrangement" xlink:to="gsm_NumberOfShareOptionsVestedInShareBasedPaymentArrangement_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfShareOptionsVestedInShareBasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The number of share options vested in a share-based payment arrangement.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfShareOptionsVestedInShareBasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of share options vested in share based payment arrangement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NumberOfShareOptionsVestedInShareBasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of options vested</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfShareOptionsUnvestedInShareBasedPaymentArrangement" xlink:label="gsm_NumberOfShareOptionsUnvestedInShareBasedPaymentArrangement" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberOfShareOptionsUnvestedInShareBasedPaymentArrangement" xlink:to="gsm_NumberOfShareOptionsUnvestedInShareBasedPaymentArrangement_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfShareOptionsUnvestedInShareBasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The number of share options unvested in a share-based payment arrangement.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfShareOptionsUnvestedInShareBasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of share options unvested in share based payment arrangement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NumberOfShareOptionsUnvestedInShareBasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of options unvested</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PaymentForSettlementOfEquityShares" xlink:label="gsm_PaymentForSettlementOfEquityShares" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PaymentForSettlementOfEquityShares" xlink:to="gsm_PaymentForSettlementOfEquityShares_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PaymentForSettlementOfEquityShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The cash outflow due to settlement of equity shares.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PaymentForSettlementOfEquityShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Payment For Settlement Of Equity Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PaymentForSettlementOfEquityShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Payment settled for equity shares</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsRestrictedStockUnitsRsuMember" xlink:label="gsm_IfrsRestrictedStockUnitsRsuMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsRestrictedStockUnitsRsuMember" xlink:to="gsm_IfrsRestrictedStockUnitsRsuMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsRestrictedStockUnitsRsuMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Share instrument which is convertible to stock or an equivalent amount of cash, after a specified period of time or when specified performance conditions are met.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsRestrictedStockUnitsRsuMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs Restricted Stock Units Rsu [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsRestrictedStockUnitsRsuMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Restricted stock units</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsStockAppreciationRightsSarsMember" xlink:label="gsm_IfrsStockAppreciationRightsSarsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsStockAppreciationRightsSarsMember" xlink:to="gsm_IfrsStockAppreciationRightsSarsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsStockAppreciationRightsSarsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Right to receive cash or stock compensation equal to the appreciation of a predetermined number of the entity's shares, during a predetermined time period.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsStockAppreciationRightsSarsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs Stock Appreciation Rights Sars [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsStockAppreciationRightsSarsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Stock appreciation rights</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement" xlink:label="ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement" xlink:to="ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of other equity instruments outstanding in share-based payment arrangement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Outstanding</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ExpenseFromShareBasedPaymentTransactionsWithEmployeesAfterTax" xlink:label="gsm_ExpenseFromShareBasedPaymentTransactionsWithEmployeesAfterTax" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ExpenseFromShareBasedPaymentTransactionsWithEmployeesAfterTax" xlink:to="gsm_ExpenseFromShareBasedPaymentTransactionsWithEmployeesAfterTax_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ExpenseFromShareBasedPaymentTransactionsWithEmployeesAfterTax_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of expense from share-based payment transactions with employees after tax.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ExpenseFromShareBasedPaymentTransactionsWithEmployeesAfterTax_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Expense from share based payment transactions with employees, after tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ExpenseFromShareBasedPaymentTransactionsWithEmployeesAfterTax_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Share based compensation expense, after tax</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LiabilitiesFromSharebasedPaymentTransactions2011" xlink:label="ifrs-full_LiabilitiesFromSharebasedPaymentTransactions2011" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LiabilitiesFromSharebasedPaymentTransactions2011" xlink:to="ifrs-full_LiabilitiesFromSharebasedPaymentTransactions2011_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LiabilitiesFromSharebasedPaymentTransactions2011_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Liabilities from share-based payment transactions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LiabilitiesFromSharebasedPaymentTransactions2011_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Liability from share based payments</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_LiabilitiesFromShareBasedPaymentTransactions2011OtherNonCurrentLiabilities" xlink:label="gsm_LiabilitiesFromShareBasedPaymentTransactions2011OtherNonCurrentLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_LiabilitiesFromShareBasedPaymentTransactions2011OtherNonCurrentLiabilities" xlink:to="gsm_LiabilitiesFromShareBasedPaymentTransactions2011OtherNonCurrentLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_LiabilitiesFromShareBasedPaymentTransactions2011OtherNonCurrentLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of non current liabilities arising from share-based payment transactions. Share-based payment transactions are transactions in which the entity: (a) receives goods or services from the supplier of those goods or services (including an employee) in a share-based payment arrangement; or (b) incurs an obligation to settle the transaction with the supplier in a share-based payment arrangement when another group entity receives those goods or services.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_LiabilitiesFromShareBasedPaymentTransactions2011OtherNonCurrentLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Liabilities from share based payment transactions 2011, other non current liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_LiabilitiesFromShareBasedPaymentTransactions2011OtherNonCurrentLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non current liability from share based payments</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_VestingPercentageOfShareBasedAwards" xlink:label="gsm_VestingPercentageOfShareBasedAwards" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_VestingPercentageOfShareBasedAwards" xlink:to="gsm_VestingPercentageOfShareBasedAwards_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_VestingPercentageOfShareBasedAwards_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The vesting percentage of awards in share-based payment arrangement.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_VestingPercentageOfShareBasedAwards_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Vesting percentage of share-based awards</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_VestingPercentageOfShareBasedAwards_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Vesting percentage of share-based awards</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_VestingLifeOfShareBasedAwards" xlink:label="gsm_VestingLifeOfShareBasedAwards" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_VestingLifeOfShareBasedAwards" xlink:to="gsm_VestingLifeOfShareBasedAwards_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_VestingLifeOfShareBasedAwards_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The vesting life of awards in a share-based payment arrangement.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_VestingLifeOfShareBasedAwards_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Vesting life of share-based awards</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_VestingLifeOfShareBasedAwards_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Vesting life</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement" xlink:label="ifrs-full_NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement" xlink:to="ifrs-full_NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of other equity instruments exercised or vested in share-based payment arrangement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Exercised</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement" xlink:label="gsm_NumberOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement" xlink:to="gsm_NumberOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The number of other equity instruments (ie other than share options) cancelled in a share-based payment arrangement.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of other equity instruments cancelled in share-based payment arrangement</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NumberOfOtherEquityInstrumentsCancelledInShareBasedPaymentArrangement_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cancelled</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentTaxExpenseIncome" xlink:label="ifrs-full_CurrentTaxExpenseIncome" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentTaxExpenseIncome" xlink:to="ifrs-full_CurrentTaxExpenseIncome_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentTaxExpenseIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current tax expense (income)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentTaxExpenseIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current income tax charge/(credit)</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AdjustmentsForCurrentTaxOfPriorPeriod" xlink:label="ifrs-full_AdjustmentsForCurrentTaxOfPriorPeriod" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForCurrentTaxOfPriorPeriod" xlink:to="ifrs-full_AdjustmentsForCurrentTaxOfPriorPeriod_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForCurrentTaxOfPriorPeriod_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments for current tax of prior periods</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AdjustmentsForCurrentTaxOfPriorPeriod_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments in current income tax in respect of prior period years</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods" xlink:label="ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods" xlink:to="ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current tax expense (income) and adjustments for current tax of prior periods</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_CurrentTaxExpenseIncomeAndAdjustmentsForCurrentTaxOfPriorPeriods_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences" xlink:label="ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences" xlink:to="ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Deferred tax expense (income) relating to origination and reversal of temporary differences</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Origination and reversal of temporary differences</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxes" xlink:label="ifrs-full_DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxes" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxes" xlink:to="ifrs-full_DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxes_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxes_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Deferred tax expense (income) relating to tax rate changes or imposition of new taxes</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DeferredTaxExpenseIncomeRelatingToTaxRateChangesOrImpositionOfNewTaxes_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Impact of tax rate changes</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AdjustmentsForDeferredTaxOfPriorPeriods" xlink:label="ifrs-full_AdjustmentsForDeferredTaxOfPriorPeriods" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AdjustmentsForDeferredTaxOfPriorPeriods" xlink:to="ifrs-full_AdjustmentsForDeferredTaxOfPriorPeriods_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AdjustmentsForDeferredTaxOfPriorPeriods_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments for deferred tax of prior periods</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AdjustmentsForDeferredTaxOfPriorPeriods_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments in deferred tax in respect of prior years</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DeferredTaxExpenseIncome" xlink:label="ifrs-full_DeferredTaxExpenseIncome" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DeferredTaxExpenseIncome" xlink:to="ifrs-full_DeferredTaxExpenseIncome_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DeferredTaxExpenseIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Deferred tax expense (income)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_DeferredTaxExpenseIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AccountingProfit" xlink:label="ifrs-full_AccountingProfit" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AccountingProfit" xlink:to="ifrs-full_AccountingProfit_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AccountingProfit_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Accounting profit</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AccountingProfit_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Accounting profit/(loss) before income tax</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AverageEffectiveTaxRate" xlink:label="ifrs-full_AverageEffectiveTaxRate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AverageEffectiveTaxRate" xlink:to="ifrs-full_AverageEffectiveTaxRate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AverageEffectiveTaxRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Average effective tax rate</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AverageEffectiveTaxRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Effective tax rate</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" xlink:label="ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TaxExpenseIncomeAtApplicableTaxRate" xlink:to="ifrs-full_TaxExpenseIncomeAtApplicableTaxRate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TaxExpenseIncomeAtApplicableTaxRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tax expense (income) at applicable tax rate</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TaxExpenseIncomeAtApplicableTaxRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">At weighted effective tax rate of 30% (2017: 31% and 2016: 31%)</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TaxEffectFromOtherNonTaxableIncomeExpenses" xlink:label="gsm_TaxEffectFromOtherNonTaxableIncomeExpenses" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TaxEffectFromOtherNonTaxableIncomeExpenses" xlink:to="gsm_TaxEffectFromOtherNonTaxableIncomeExpenses_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TaxEffectFromOtherNonTaxableIncomeExpenses_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the other non taxable income (expenses).</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TaxEffectFromOtherNonTaxableIncomeExpenses_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tax Effect from Other Non-taxable Income (Expenses)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_TaxEffectFromOtherNonTaxableIncomeExpenses_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-taxable income/(expenses)</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xlink:label="ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss" xlink:to="ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tax effect of expense not deductible in determining taxable profit (tax loss)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-deductible expenses</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TaxEffectFromUnprovidedDeferredTax" xlink:label="gsm_TaxEffectFromUnprovidedDeferredTax" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TaxEffectFromUnprovidedDeferredTax" xlink:to="gsm_TaxEffectFromUnprovidedDeferredTax_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TaxEffectFromUnprovidedDeferredTax_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the unprovided deferred tax.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TaxEffectFromUnprovidedDeferredTax_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tax Effect from Unprovided Deferred Tax</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_TaxEffectFromUnprovidedDeferredTax_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Movements in unprovided deferred tax</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TaxEffectFromChangeInTaxRate" xlink:label="ifrs-full_TaxEffectFromChangeInTaxRate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TaxEffectFromChangeInTaxRate" xlink:to="ifrs-full_TaxEffectFromChangeInTaxRate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TaxEffectFromChangeInTaxRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tax effect from change in tax rate</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TaxEffectFromChangeInTaxRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">US Tax Reform - federal tax rate change</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TaxEffectFromDifferingTerritorialTaxRates" xlink:label="gsm_TaxEffectFromDifferingTerritorialTaxRates" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TaxEffectFromDifferingTerritorialTaxRates" xlink:to="gsm_TaxEffectFromDifferingTerritorialTaxRates_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TaxEffectFromDifferingTerritorialTaxRates_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the differing territorial tax rates.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TaxEffectFromDifferingTerritorialTaxRates_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tax Effect from Differing Territorial Tax Rates</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_TaxEffectFromDifferingTerritorialTaxRates_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Differing territorial tax rates</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TaxEffectFromAdjustmentsInRespectOfPriorPeriods" xlink:label="gsm_TaxEffectFromAdjustmentsInRespectOfPriorPeriods" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TaxEffectFromAdjustmentsInRespectOfPriorPeriods" xlink:to="gsm_TaxEffectFromAdjustmentsInRespectOfPriorPeriods_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TaxEffectFromAdjustmentsInRespectOfPriorPeriods_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the adjustments in respect of prior periods.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TaxEffectFromAdjustmentsInRespectOfPriorPeriods_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tax Effect from Adjustments in Respect of Prior Periods</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_TaxEffectFromAdjustmentsInRespectOfPriorPeriods_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustments in respect of prior periods</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome" xlink:label="ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome" xlink:to="ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other tax effects for reconciliation between accounting profit and tax expense (income)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other items</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TaxEffectOfEliminationOfEffectOfInterestInJointVentures" xlink:label="gsm_TaxEffectOfEliminationOfEffectOfInterestInJointVentures" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TaxEffectOfEliminationOfEffectOfInterestInJointVentures" xlink:to="gsm_TaxEffectOfEliminationOfEffectOfInterestInJointVentures_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TaxEffectOfEliminationOfEffectOfInterestInJointVentures_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to elimination of effect of interest in joint interest.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TaxEffectOfEliminationOfEffectOfInterestInJointVentures_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tax Effect of Elimination of Effect of Interest in Joint Interest</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_TaxEffectOfEliminationOfEffectOfInterestInJointVentures_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Elimination of effect of interest in joint ventures</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TaxEffectOfOtherPermanentDifferences" xlink:label="gsm_TaxEffectOfOtherPermanentDifferences" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TaxEffectOfOtherPermanentDifferences" xlink:to="gsm_TaxEffectOfOtherPermanentDifferences_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TaxEffectOfOtherPermanentDifferences_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to other permanent differences.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TaxEffectOfOtherPermanentDifferences_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tax Effect of Other Permanent Differences</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_TaxEffectOfOtherPermanentDifferences_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other permanent differences</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TaxEffectOfIncentivesAndDeductions" xlink:label="gsm_TaxEffectOfIncentivesAndDeductions" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TaxEffectOfIncentivesAndDeductions" xlink:to="gsm_TaxEffectOfIncentivesAndDeductions_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TaxEffectOfIncentivesAndDeductions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to incentives and deductions.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TaxEffectOfIncentivesAndDeductions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tax effect of incentives and deductions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:label="gsm_TaxEffectOfIncentivesAndDeductions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Incentives and deductions</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TaxEffectOfStateTaxRates" xlink:label="gsm_TaxEffectOfStateTaxRates" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TaxEffectOfStateTaxRates" xlink:to="gsm_TaxEffectOfStateTaxRates_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TaxEffectOfStateTaxRates_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to state tax rates.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TaxEffectOfStateTaxRates_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tax effect of State tax rates</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_TaxEffectOfStateTaxRates_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">US State taxes</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TaxEffectOfTaxableCapitalGains" xlink:label="gsm_TaxEffectOfTaxableCapitalGains" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TaxEffectOfTaxableCapitalGains" xlink:to="gsm_TaxEffectOfTaxableCapitalGains_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TaxEffectOfTaxableCapitalGains_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount that represents the difference between the tax expense (income) and the product of the accounting profit multiplied by the applicable tax rate(s) that relates to taxable capital gains.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TaxEffectOfTaxableCapitalGains_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tax Effect of Taxable Capital Gains</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_TaxEffectOfTaxableCapitalGains_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Taxable capital gains</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ApplicableTaxRate" xlink:label="ifrs-full_ApplicableTaxRate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ApplicableTaxRate" xlink:to="ifrs-full_ApplicableTaxRate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ApplicableTaxRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Applicable tax rate</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ApplicableTaxRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Effective tax rate</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxLiabilityProvisionalIncomeTaxBenefit" xlink:label="gsm_TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxLiabilityProvisionalIncomeTaxBenefit" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxLiabilityProvisionalIncomeTaxBenefit" xlink:to="gsm_TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxLiabilityProvisionalIncomeTaxBenefit_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxLiabilityProvisionalIncomeTaxBenefit_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount of reasonable estimate for income tax benefit for remeasurement of deferred tax liability from change in tax rate pursuant to Tax Cuts and Jobs Act of 2017 for which accounting for tax effect is incomplete.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxLiabilityProvisionalIncomeTaxBenefit_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Change in Tax Rate, Deferred Tax Liability, Provisional Income Tax Benefit</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_TaxCutsAndJobsActOf2017IncompleteAccountingChangeInTaxRateDeferredTaxLiabilityProvisionalIncomeTaxBenefit_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Deferred tax credit</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TaxCutsAndJobsActOf2017IncompleteAccountingTransitionTaxForAccumulatedForeignEarningsProvisionalIncomeTaxExpense" xlink:label="gsm_TaxCutsAndJobsActOf2017IncompleteAccountingTransitionTaxForAccumulatedForeignEarningsProvisionalIncomeTaxExpense" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TaxCutsAndJobsActOf2017IncompleteAccountingTransitionTaxForAccumulatedForeignEarningsProvisionalIncomeTaxExpense" xlink:to="gsm_TaxCutsAndJobsActOf2017IncompleteAccountingTransitionTaxForAccumulatedForeignEarningsProvisionalIncomeTaxExpense_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TaxCutsAndJobsActOf2017IncompleteAccountingTransitionTaxForAccumulatedForeignEarningsProvisionalIncomeTaxExpense_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount of reasonable estimate for income tax expense from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act of 2017 for which accounting for tax effect is incomplete.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TaxCutsAndJobsActOf2017IncompleteAccountingTransitionTaxForAccumulatedForeignEarningsProvisionalIncomeTaxExpense_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Transition Tax for Accumulated Foreign Earnings, Provisional Income Tax Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_TaxCutsAndJobsActOf2017IncompleteAccountingTransitionTaxForAccumulatedForeignEarningsProvisionalIncomeTaxExpense_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">One off tax charge</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CurrentTaxAssetsAndLiabilitiesAbstract" xlink:label="gsm_CurrentTaxAssetsAndLiabilitiesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CurrentTaxAssetsAndLiabilitiesAbstract" xlink:to="gsm_CurrentTaxAssetsAndLiabilitiesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CurrentTaxAssetsAndLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">No definition available.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CurrentTaxAssetsAndLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current Tax Assets And Liabilities [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_CurrentTaxAssetsAndLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current tax assets and liabilities</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CurrentTaxAssetsAbstract" xlink:label="gsm_CurrentTaxAssetsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CurrentTaxAssetsAbstract" xlink:to="gsm_CurrentTaxAssetsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CurrentTaxAssetsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">No definition available.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CurrentTaxAssetsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current Tax Assets [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_CurrentTaxAssetsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current tax assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentTaxAssets" xlink:label="ifrs-full_CurrentTaxAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentTaxAssets" xlink:to="ifrs-full_CurrentTaxAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentTaxAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current tax assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentTaxAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Income tax receivable</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CurrentTaxLiabilitiesAbstract" xlink:label="gsm_CurrentTaxLiabilitiesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CurrentTaxLiabilitiesAbstract" xlink:to="gsm_CurrentTaxLiabilitiesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CurrentTaxLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">No definition available.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CurrentTaxLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current Tax Liabilities [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_CurrentTaxLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current tax liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrentTaxLiabilities" xlink:label="ifrs-full_CurrentTaxLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrentTaxLiabilities" xlink:to="ifrs-full_CurrentTaxLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrentTaxLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Current tax liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrentTaxLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Income tax payable</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CurrentTaxAssetsLiabilities" xlink:label="gsm_CurrentTaxAssetsLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xlink:label="ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of temporary difference, unused tax losses and unused tax credits [line items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tax matters</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract" xlink:label="ifrs-full_ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Reconciliation of changes in deferred tax liability (asset) [abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Deferred tax assets and liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DeferredTaxLiabilityAsset" xlink:label="ifrs-full_DeferredTaxLiabilityAsset" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DeferredTaxLiabilityAsset" xlink:to="ifrs-full_DeferredTaxLiabilityAsset_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DeferredTaxLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Deferred tax liability (asset)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:label="ifrs-full_DeferredTaxLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net Total Deferred Tax Asset / (Liability)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_DeferredTaxLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Closing balance</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_DeferredTaxLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Opening balance</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DeferredTaxLiabilityAssetPriorYearChange" xlink:label="gsm_DeferredTaxLiabilityAssetPriorYearChange" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DeferredTaxLiabilityAssetPriorYearChange" xlink:to="gsm_DeferredTaxLiabilityAssetPriorYearChange_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DeferredTaxLiabilityAssetPriorYearChange_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Deferred Tax Liability Asset, Prior Year Change</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DeferredTaxLiabilityAssetPriorYearChange_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Deferred Tax Liability Asset, Prior Year Change</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DeferredTaxLiabilityAssetPriorYearChange_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Prior Year Change</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss" xlink:label="ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss" xlink:to="ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Deferred tax expense (income) recognised in profit or loss</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DeferredTaxExpenseIncomeRecognisedInProfitOrLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Recognised in P&amp;L</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity" xlink:label="ifrs-full_DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity" xlink:to="ifrs-full_DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Deferred tax relating to items credited (charged) directly to equity</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DeferredTaxRelatingToItemsChargedOrCreditedDirectlyToEquity_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Recognised in Equity/ OCI</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IncreaseDecreaseThroughBusinessCombinationsOrLossOfControlOfSubsidiaryDeferredTaxLiabilityAsset" xlink:label="gsm_IncreaseDecreaseThroughBusinessCombinationsOrLossOfControlOfSubsidiaryDeferredTaxLiabilityAsset" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IncreaseDecreaseThroughBusinessCombinationsOrLossOfControlOfSubsidiaryDeferredTaxLiabilityAsset" xlink:to="gsm_IncreaseDecreaseThroughBusinessCombinationsOrLossOfControlOfSubsidiaryDeferredTaxLiabilityAsset_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IncreaseDecreaseThroughBusinessCombinationsOrLossOfControlOfSubsidiaryDeferredTaxLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The increase (decrease) in deferred tax liability (asset) resulting from business combinations or loss of control of a subsidiary.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IncreaseDecreaseThroughBusinessCombinationsOrLossOfControlOfSubsidiaryDeferredTaxLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (Decrease) Through Business Combinations, Or Loss Of Control Of Subsidiary, Deferred Tax Liability (Asset)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IncreaseDecreaseThroughBusinessCombinationsOrLossOfControlOfSubsidiaryDeferredTaxLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Acquisitions/ Disposals</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (decrease) through net exchange differences, deferred tax liability (asset)</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughNetExchangeDifferencesDeferredTaxLiabilityAsset_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Exchange Differences</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xlink:label="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Temporary difference, unused tax losses and unused tax credits [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember" xlink:label="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember" xlink:to="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Temporary Difference Unused Tax Losses And Unused Tax Credits [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Temporary difference, unused tax losses and unused tax credits [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherTemporaryDifferencesMember" xlink:label="ifrs-full_OtherTemporaryDifferencesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherTemporaryDifferencesMember" xlink:to="ifrs-full_OtherTemporaryDifferencesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherTemporaryDifferencesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Temporary Differences [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherTemporaryDifferencesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCredits" xlink:label="gsm_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCredits" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCredits" xlink:to="gsm_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCredits_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCredits_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount of unrecognized deductible temporary difference, unused tax losses and unused tax credits.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCredits_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Temporary Difference, Unused Tax Losses and Unused Tax Credits</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCredits_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfYearsOpenToReview" xlink:label="gsm_NumberOfYearsOpenToReview" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfYearsOpenToReview_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the number of years open to review.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfYearsOpenToReview_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of Years Open To Review</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NumberOfYearsOpenToReview_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of years open to review</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_AurinkaAndBluePowerCorporationSLMember" xlink:label="gsm_AurinkaAndBluePowerCorporationSLMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_AurinkaAndBluePowerCorporationSLMember" xlink:to="gsm_AurinkaAndBluePowerCorporationSLMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_AurinkaAndBluePowerCorporationSLMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the joint venture with Aurinka and Blue Power Corporation, S.L.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_AurinkaAndBluePowerCorporationSLMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Aurinka And Blue Power Corporation S L [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_AurinkaAndBluePowerCorporationSLMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Aurinka And Blue Power Corporation, S.L.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_InmobiliariaEspacioS.a.Member" xlink:label="gsm_InmobiliariaEspacioS.a.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_InmobiliariaEspacioS.a.Member" xlink:to="gsm_InmobiliariaEspacioS.a.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_InmobiliariaEspacioS.a.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Inmobiliaria Espacio, S.A.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_InmobiliariaEspacioS.a.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Inmobiliaria Espacio S.a. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_InmobiliariaEspacioS.a.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Inmobiliaria Espacio, S.A.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_EnergyaVmGeneracionS.lMember" xlink:label="gsm_EnergyaVmGeneracionS.lMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_EnergyaVmGeneracionS.lMember" xlink:to="gsm_EnergyaVmGeneracionS.lMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_EnergyaVmGeneracionS.lMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Energya VM Generacion, S.L</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_EnergyaVmGeneracionS.lMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Energya Vm Generacion S.l [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_EnergyaVmGeneracionS.lMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Energya VM Generacion, S.L</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_EnergyaVmGestionS.lMember" xlink:label="gsm_EnergyaVmGestionS.lMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_EnergyaVmGestionS.lMember" xlink:to="gsm_EnergyaVmGestionS.lMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_EnergyaVmGestionS.lMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Energya VM Gestion, S.L.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_EnergyaVmGestionS.lMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Energya Vm Gestion S.l [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_EnergyaVmGestionS.lMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Energya VM Gestion, S.L</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_MarcoInternationalMember" xlink:label="gsm_MarcoInternationalMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_MarcoInternationalMember" xlink:to="gsm_MarcoInternationalMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_MarcoInternationalMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Marco International.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_MarcoInternationalMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Marco International [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_MarcoInternationalMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Marco International</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_VillarMirEnergiaS.l.u.Member" xlink:label="gsm_VillarMirEnergiaS.l.u.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_VillarMirEnergiaS.l.u.Member" xlink:to="gsm_VillarMirEnergiaS.l.u.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_VillarMirEnergiaS.l.u.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Villar Mir Energia, S.L.U.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_VillarMirEnergiaS.l.u.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Villar Mir Energia S.l.u. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_VillarMirEnergiaS.l.u.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Villar Mir Energia, S.L.U.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_EspacioInformationTechnologyS.a.u.Member" xlink:label="gsm_EspacioInformationTechnologyS.a.u.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_EspacioInformationTechnologyS.a.u.Member" xlink:to="gsm_EspacioInformationTechnologyS.a.u.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_EspacioInformationTechnologyS.a.u.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Espacio Information Technology, S.A.U.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_EspacioInformationTechnologyS.a.u.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Espacio Information Technology S.a.u. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_EspacioInformationTechnologyS.a.u.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Espacio Information Technology, S.A.U.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_BluePowerCorporationS.l.Member" xlink:label="gsm_BluePowerCorporationS.l.Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_BluePowerCorporationS.l.Member" xlink:to="gsm_BluePowerCorporationS.l.Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_BluePowerCorporationS.l.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Blue Power Corporation, S.L.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_BluePowerCorporationS.l.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Blue Power Corporation S.l. [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_BluePowerCorporationS.l.Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Blue Power Corporation, S.L.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherRelatedPartiesMember" xlink:label="ifrs-full_OtherRelatedPartiesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherRelatedPartiesMember" xlink:to="ifrs-full_OtherRelatedPartiesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherRelatedPartiesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Related Parties [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherRelatedPartiesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other related parties</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_KeyManagementPersonnelOfEntityOrParentMember" xlink:label="ifrs-full_KeyManagementPersonnelOfEntityOrParentMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_KeyManagementPersonnelOfEntityOrParentMember" xlink:to="ifrs-full_KeyManagementPersonnelOfEntityOrParentMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_KeyManagementPersonnelOfEntityOrParentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Key Management Personnel Of Entity Or Parent [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_KeyManagementPersonnelOfEntityOrParentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Key management personnel</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GrupoFerroatlanticaAndHidroNitroEspanolaMember" xlink:label="gsm_GrupoFerroatlanticaAndHidroNitroEspanolaMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GrupoFerroatlanticaAndHidroNitroEspanolaMember" xlink:to="gsm_GrupoFerroatlanticaAndHidroNitroEspanolaMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GrupoFerroatlanticaAndHidroNitroEspanolaMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Pertaining to both Grupo FerroAtlantica, S.A.U. and Hidro-Nitro Espanola, S.A.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GrupoFerroatlanticaAndHidroNitroEspanolaMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grupo Ferroatlantica And Hidro Nitro Espanola [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GrupoFerroatlanticaAndHidroNitroEspanolaMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Grupo Ferroatlantica And Hidro Nitro Espanola [Member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_HidroNitroEspanolaS.a.OtherSegmentsEnergyMember" xlink:label="gsm_HidroNitroEspanolaS.a.OtherSegmentsEnergyMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_HidroNitroEspanolaS.a.OtherSegmentsEnergyMember" xlink:to="gsm_HidroNitroEspanolaS.a.OtherSegmentsEnergyMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_HidroNitroEspanolaS.a.OtherSegmentsEnergyMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the Hidro-Nitro Espanola, S.A. - Other segments - Energy Industry Company.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_HidroNitroEspanolaS.a.OtherSegmentsEnergyMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Hidro Nitro Espanola S.a. Other Segments Energy [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_HidroNitroEspanolaS.a.OtherSegmentsEnergyMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Hidro-Nitro Espanola, S.A. - Other segments - Energy</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AmountsReceivableRelatedPartyTransactions" xlink:label="ifrs-full_AmountsReceivableRelatedPartyTransactions" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AmountsReceivableRelatedPartyTransactions" xlink:to="ifrs-full_AmountsReceivableRelatedPartyTransactions_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AmountsReceivableRelatedPartyTransactions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amounts receivable, related party transactions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_AmountsReceivableRelatedPartyTransactions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Receivables, Non Current</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_RelatedPartyTransactionsLoanMaturityTerm" xlink:label="gsm_RelatedPartyTransactionsLoanMaturityTerm" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_RelatedPartyTransactionsLoanMaturityTerm" xlink:to="gsm_RelatedPartyTransactionsLoanMaturityTerm_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_RelatedPartyTransactionsLoanMaturityTerm_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Period of time between issuance and maturity of loan.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_RelatedPartyTransactionsLoanMaturityTerm_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Related party transactions loan maturity term</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_RelatedPartyTransactionsLoanMaturityTerm_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Short term loan maturity</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_RevenueFromSaleOfGoodsRelatedPartyTransactions" xlink:label="ifrs-full_RevenueFromSaleOfGoodsRelatedPartyTransactions" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_RevenueFromSaleOfGoodsRelatedPartyTransactions" xlink:to="ifrs-full_RevenueFromSaleOfGoodsRelatedPartyTransactions_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_RevenueFromSaleOfGoodsRelatedPartyTransactions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Revenue from sale of goods, related party transactions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_RevenueFromSaleOfGoodsRelatedPartyTransactions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Sales and Operating Income</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_PurchasesOfGoodsRelatedPartyTransactions" xlink:label="ifrs-full_PurchasesOfGoodsRelatedPartyTransactions" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PurchasesOfGoodsRelatedPartyTransactions" xlink:to="ifrs-full_PurchasesOfGoodsRelatedPartyTransactions_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PurchasesOfGoodsRelatedPartyTransactions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Purchases of goods, related party transactions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_PurchasesOfGoodsRelatedPartyTransactions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cost of Sales</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_RelatedPartyStaffCosts" xlink:label="gsm_RelatedPartyStaffCosts" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_RelatedPartyStaffCosts" xlink:to="gsm_RelatedPartyStaffCosts_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_RelatedPartyStaffCosts_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Related party, staff costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_RelatedPartyStaffCosts_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Related party, staff costs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_RelatedPartyStaffCosts_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Staff costs</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_OtherOperatingExpensesRelatedPartyTransaction" xlink:label="gsm_OtherOperatingExpensesRelatedPartyTransaction" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_OtherOperatingExpensesRelatedPartyTransaction" xlink:to="gsm_OtherOperatingExpensesRelatedPartyTransaction_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_OtherOperatingExpensesRelatedPartyTransaction_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount included in other operating expenses related to transactions with related parties incurred and recorded in the statement of operations for the period.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_OtherOperatingExpensesRelatedPartyTransaction_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other operating expenses, related party transaction</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_OtherOperatingExpensesRelatedPartyTransaction_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Operating Expenses</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FinanceIncomeRelatedPartyTransaction" xlink:label="gsm_FinanceIncomeRelatedPartyTransaction" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FinanceIncomeRelatedPartyTransaction" xlink:to="gsm_FinanceIncomeRelatedPartyTransaction_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FinanceIncomeRelatedPartyTransaction_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount included in finance income related to transactions with related parties incurred and recorded in the statement of operations for the period.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FinanceIncomeRelatedPartyTransaction_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Finance income, related party transaction</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FinanceIncomeRelatedPartyTransaction_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Finance Income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="gsm_FinanceIncomeRelatedPartyTransaction_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Finance income of related parties (Note 23)</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AmountsPayableRelatedPartyTransactions" xlink:label="ifrs-full_AmountsPayableRelatedPartyTransactions" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AmountsPayableRelatedPartyTransactions" xlink:to="ifrs-full_AmountsPayableRelatedPartyTransactions_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AmountsPayableRelatedPartyTransactions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amounts payable, related party transactions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AmountsPayableRelatedPartyTransactions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Obligation for purchase of energy plus service charge</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PurchaseOfPropertyPlantAndEquipmentPerJointVenture" xlink:label="gsm_PurchaseOfPropertyPlantAndEquipmentPerJointVenture" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PurchaseOfPropertyPlantAndEquipmentPerJointVenture" xlink:to="gsm_PurchaseOfPropertyPlantAndEquipmentPerJointVenture_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PurchaseOfPropertyPlantAndEquipmentPerJointVenture_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount of purchases of property, plant and equipment according to the joint venture agreement.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PurchaseOfPropertyPlantAndEquipmentPerJointVenture_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Purchase Of Property Plant And Equipment Per Joint Venture</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PurchaseOfPropertyPlantAndEquipmentPerJointVenture_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Purchase of property, plant and equipment</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_BankGuaranteesCommitmentsToThirdParties" xlink:label="gsm_BankGuaranteesCommitmentsToThirdParties" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_BankGuaranteesCommitmentsToThirdParties" xlink:to="gsm_BankGuaranteesCommitmentsToThirdParties_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_BankGuaranteesCommitmentsToThirdParties_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of bank guarantees commitments to third party.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_BankGuaranteesCommitmentsToThirdParties_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Bank guarantees commitments to third parties</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_BankGuaranteesCommitmentsToThirdParties_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Bank guarantees commitments to third parties</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsLossContingencyNumberOfPlaintiffs" xlink:label="gsm_IfrsLossContingencyNumberOfPlaintiffs" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsLossContingencyNumberOfPlaintiffs" xlink:to="gsm_IfrsLossContingencyNumberOfPlaintiffs_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsLossContingencyNumberOfPlaintiffs_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of plaintiffs that have filed claims pertaining to a loss contingency.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsLossContingencyNumberOfPlaintiffs_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">ifrs Loss Contingency, Number of Plaintiffs</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsLossContingencyNumberOfPlaintiffs_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of employees</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsLossContingencyClaimsSettledNumber" xlink:label="gsm_IfrsLossContingencyClaimsSettledNumber" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsLossContingencyClaimsSettledNumber" xlink:to="gsm_IfrsLossContingencyClaimsSettledNumber_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsLossContingencyClaimsSettledNumber_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of claims settled.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsLossContingencyClaimsSettledNumber_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs Loss Contingency, Claims Settled, Number</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IfrsLossContingencyClaimsSettledNumber_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of case closed</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsLossContingencyPendingClaimsNumber" xlink:label="gsm_IfrsLossContingencyPendingClaimsNumber" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsLossContingencyPendingClaimsNumber" xlink:to="gsm_IfrsLossContingencyPendingClaimsNumber_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsLossContingencyPendingClaimsNumber_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of pending claims pertaining to a loss contingency.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsLossContingencyPendingClaimsNumber_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">ifrs Loss Contingency, Pending Claims, Number</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="gsm_IfrsLossContingencyPendingClaimsNumber_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of claims pending</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_LossContingencyNumberOfInexcusableNegligence" xlink:label="gsm_LossContingencyNumberOfInexcusableNegligence" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_LossContingencyNumberOfInexcusableNegligence" xlink:to="gsm_LossContingencyNumberOfInexcusableNegligence_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_LossContingencyNumberOfInexcusableNegligence_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of inexcusable negligence pertaining to a loss contingency.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_LossContingencyNumberOfInexcusableNegligence_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Loss Contingency, Number of Inexcusable Negligence</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_LossContingencyNumberOfInexcusableNegligence_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of faute inexcusable</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfGraveCases" xlink:label="gsm_NumberOfGraveCases" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberOfGraveCases" xlink:to="gsm_NumberOfGraveCases_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfGraveCases_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of grave cases that have been litigated through the appeal process and in which claimants&#x2019; assertions of inexcusable negligence were upheld.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfGraveCases_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of Grave Cases</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NumberOfGraveCases_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of grave cases</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_StatutoryMaximumPenaltyForViolationOfStandardProvisions" xlink:label="gsm_StatutoryMaximumPenaltyForViolationOfStandardProvisions" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_StatutoryMaximumPenaltyForViolationOfStandardProvisions" xlink:to="gsm_StatutoryMaximumPenaltyForViolationOfStandardProvisions_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_StatutoryMaximumPenaltyForViolationOfStandardProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of statutory maximum penalty for violation of standard provisions per day.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_StatutoryMaximumPenaltyForViolationOfStandardProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Statutory maximum penalty for violation of standard provisions</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_StatutoryMaximumPenaltyForViolationOfStandardProvisions_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Statutory maximum penalty per day per violation of standard provisions</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OperatingSegmentsMember" xlink:label="ifrs-full_OperatingSegmentsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OperatingSegmentsMember" xlink:to="ifrs-full_OperatingSegmentsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OperatingSegmentsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Operating Segments [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OperatingSegmentsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Operating segments</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_StatementGeographicalAxis" xlink:label="srt_StatementGeographicalAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_StatementGeographicalAxis" xlink:to="srt_StatementGeographicalAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_StatementGeographicalAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Geographical [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_SegmentGeographicalDomain" xlink:label="srt_SegmentGeographicalDomain" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_SegmentGeographicalDomain" xlink:to="srt_SegmentGeographicalDomain_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_SegmentGeographicalDomain_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Segment Geographical [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_SegmentGeographicalDomain_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Geographical [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_ES" xlink:label="country_ES" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="country_ES" xlink:to="country_ES_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="country_ES_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">E [S]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="country_ES_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Spain</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_DE" xlink:label="country_DE" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="country_DE" xlink:to="country_DE_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="country_DE_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">D [E]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="country_DE_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Germany</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_IT" xlink:label="country_IT" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="country_IT" xlink:to="country_IT_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="country_IT_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">I [T]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="country_IT_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Italy</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_EuropeanCountriesOtherThanSpainGermanyItalyMember" xlink:label="gsm_EuropeanCountriesOtherThanSpainGermanyItalyMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_EuropeanCountriesOtherThanSpainGermanyItalyMember" xlink:to="gsm_EuropeanCountriesOtherThanSpainGermanyItalyMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_EuropeanCountriesOtherThanSpainGermanyItalyMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for European countries other than Spain, Germany and Italy.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_EuropeanCountriesOtherThanSpainGermanyItalyMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">European Countries Other Than Spain Germany Italy [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_EuropeanCountriesOtherThanSpainGermanyItalyMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other EU Countries</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_WorldOtherThanEuropeanAndUSMember" xlink:label="gsm_WorldOtherThanEuropeanAndUSMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_WorldOtherThanEuropeanAndUSMember" xlink:to="gsm_WorldOtherThanEuropeanAndUSMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_WorldOtherThanEuropeanAndUSMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the World other than European Countries and USA.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_WorldOtherThanEuropeanAndUSMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">World Other Than European And U S [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_WorldOtherThanEuropeanAndUSMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Rest of World</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ClassesOfEmployeeBenefitsExpenseAbstract" xlink:label="ifrs-full_ClassesOfEmployeeBenefitsExpenseAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfEmployeeBenefitsExpenseAbstract" xlink:to="ifrs-full_ClassesOfEmployeeBenefitsExpenseAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfEmployeeBenefitsExpenseAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Classes of employee benefits expense [abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ClassesOfEmployeeBenefitsExpenseAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Staff costs</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_WagesAndSalaries" xlink:label="ifrs-full_WagesAndSalaries" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_WagesAndSalaries" xlink:to="ifrs-full_WagesAndSalaries_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_WagesAndSalaries_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Wages and salaries</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_WagesAndSalaries_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Wages, salaries and similar expenses</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans" xlink:label="ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans" xlink:to="ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Post-employment benefit expense, defined contribution plans</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_PostemploymentBenefitExpenseDefinedContributionPlans_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Pension plan contributions</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherEmployeeExpense" xlink:label="ifrs-full_OtherEmployeeExpense" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherEmployeeExpense" xlink:to="ifrs-full_OtherEmployeeExpense_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherEmployeeExpense_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other employee expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherEmployeeExpense_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Employee benefit costs</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DisclosureOfIncomeAndExpensesTable" xlink:label="gsm_DisclosureOfIncomeAndExpensesTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DisclosureOfIncomeAndExpensesTable" xlink:to="gsm_DisclosureOfIncomeAndExpensesTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DisclosureOfIncomeAndExpensesTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Schedule disclosing information related to income and expenses.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DisclosureOfIncomeAndExpensesTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure Of Income And Expenses [Table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossAbstract" xlink:label="ifrs-full_DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossAbstract" xlink:to="ifrs-full_DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Depreciation and amortization charges, operating allowances and write-downs</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AmortisationExpense" xlink:label="ifrs-full_AmortisationExpense" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AmortisationExpense" xlink:to="ifrs-full_AmortisationExpense_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AmortisationExpense_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amortisation expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AmortisationExpense_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amortization of intangible assets (Note 8)</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DepreciationExpense" xlink:label="ifrs-full_DepreciationExpense" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DepreciationExpense" xlink:to="ifrs-full_DepreciationExpense_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DepreciationExpense_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Depreciation expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DepreciationExpense_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Depreciation of property, plant and equipment (Note 9)</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_OtherWriteDownsAndReversals" xlink:label="gsm_OtherWriteDownsAndReversals" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_OtherWriteDownsAndReversals" xlink:to="gsm_OtherWriteDownsAndReversals_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_OtherWriteDownsAndReversals_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of write downs and reversals charged to income statement and same classified as other.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_OtherWriteDownsAndReversals_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Write Downs and Reversals</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_OtherWriteDownsAndReversals_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other write-downs and reversals</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FinanceIncomeAbstract" xlink:label="gsm_FinanceIncomeAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FinanceIncomeAbstract" xlink:to="gsm_FinanceIncomeAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FinanceIncomeAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">No definition available.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FinanceIncomeAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Finance Income [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FinanceIncomeAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Finance income</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherFinanceIncome" xlink:label="ifrs-full_OtherFinanceIncome" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherFinanceIncome" xlink:to="ifrs-full_OtherFinanceIncome_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherFinanceIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other finance income</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherFinanceIncome_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other finance income</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FinanceCostsAbstract" xlink:label="gsm_FinanceCostsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FinanceCostsAbstract" xlink:to="gsm_FinanceCostsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FinanceCostsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">No definition available.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FinanceCostsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Finance Costs [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FinanceCostsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Finance costs</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_InterestExpenseOnDebtInstrumentsIssued" xlink:label="ifrs-full_InterestExpenseOnDebtInstrumentsIssued" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestExpenseOnDebtInstrumentsIssued" xlink:to="ifrs-full_InterestExpenseOnDebtInstrumentsIssued_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InterestExpenseOnDebtInstrumentsIssued_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest expense on debt instruments issued</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InterestExpenseOnDebtInstrumentsIssued_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest on debt instruments</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_InterestExpenseOnBorrowings" xlink:label="ifrs-full_InterestExpenseOnBorrowings" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestExpenseOnBorrowings" xlink:to="ifrs-full_InterestExpenseOnBorrowings_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InterestExpenseOnBorrowings_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest expense on borrowings</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InterestExpenseOnBorrowings_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest on loans and credit facilities</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_InterestExpenseOnNoteAndBillDiscounting" xlink:label="gsm_InterestExpenseOnNoteAndBillDiscounting" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_InterestExpenseOnNoteAndBillDiscounting" xlink:to="gsm_InterestExpenseOnNoteAndBillDiscounting_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_InterestExpenseOnNoteAndBillDiscounting_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of interest expense on Note and negotiable instrument issued.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_InterestExpenseOnNoteAndBillDiscounting_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest expense on note and bill discounting</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_InterestExpenseOnNoteAndBillDiscounting_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest on note and bill discounting</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_InterestExpenseOnInterestRateSwaps" xlink:label="gsm_InterestExpenseOnInterestRateSwaps" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_InterestExpenseOnInterestRateSwaps" xlink:to="gsm_InterestExpenseOnInterestRateSwaps_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_InterestExpenseOnInterestRateSwaps_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of interest expense on Interest rate swap.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_InterestExpenseOnInterestRateSwaps_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest expense on interest rate swaps</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_InterestExpenseOnInterestRateSwaps_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest on interest rate swaps</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_InterestExpenseOnFinanceLeases" xlink:label="ifrs-full_InterestExpenseOnFinanceLeases" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestExpenseOnFinanceLeases" xlink:to="ifrs-full_InterestExpenseOnFinanceLeases_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InterestExpenseOnFinanceLeases_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest expense on finance leases</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InterestExpenseOnFinanceLeases_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest on finance leases</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_TradeReceivablesSecuritizationExpense" xlink:label="gsm_TradeReceivablesSecuritizationExpense" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_TradeReceivablesSecuritizationExpense" xlink:to="gsm_TradeReceivablesSecuritizationExpense_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_TradeReceivablesSecuritizationExpense_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of trade receivable securitization expense.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_TradeReceivablesSecuritizationExpense_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade Receivables Securitization Expense</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_TradeReceivablesSecuritizationExpense_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade receivables securitization expense (Note 10)</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_OtherFinanceCost" xlink:label="ifrs-full_OtherFinanceCost" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_OtherFinanceCost" xlink:to="ifrs-full_OtherFinanceCost_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_OtherFinanceCost_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other finance cost</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_OtherFinanceCost_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other finance costs</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ImpairmentNoncurrentFinancialAssets" xlink:label="gsm_ImpairmentNoncurrentFinancialAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ImpairmentNoncurrentFinancialAssets" xlink:to="gsm_ImpairmentNoncurrentFinancialAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ImpairmentNoncurrentFinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of impairment loss on non-current financial assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ImpairmentNoncurrentFinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Impairment Noncurrent Financial Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ImpairmentNoncurrentFinancialAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Impairment of non-current financial assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ChangesInFairValueMeasurementAssetsAbstract" xlink:label="ifrs-full_ChangesInFairValueMeasurementAssetsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ChangesInFairValueMeasurementAssetsAbstract" xlink:to="ifrs-full_ChangesInFairValueMeasurementAssetsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ChangesInFairValueMeasurementAssetsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Changes in fair value measurement, assets [abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ChangesInFairValueMeasurementAssetsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net (loss) gain due to changes in the value of assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_GainsLossesOnChangeInFairValueEstimatesOfBiologicalAssetsForCurrentPeriod" xlink:label="ifrs-full_GainsLossesOnChangeInFairValueEstimatesOfBiologicalAssetsForCurrentPeriod" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainsLossesOnChangeInFairValueEstimatesOfBiologicalAssetsForCurrentPeriod" xlink:to="ifrs-full_GainsLossesOnChangeInFairValueEstimatesOfBiologicalAssetsForCurrentPeriod_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainsLossesOnChangeInFairValueEstimatesOfBiologicalAssetsForCurrentPeriod_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gains (losses) on change in fair value less costs to sell of biological assets for current period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:label="ifrs-full_GainsLossesOnChangeInFairValueEstimatesOfBiologicalAssetsForCurrentPeriod_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">(Increase) decrease in fair value of biological assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:label="ifrs-full_GainsLossesOnChangeInFairValueEstimatesOfBiologicalAssetsForCurrentPeriod_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gain/Loss recognised in profit or loos</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GainsLossesRecognisedInProfitOrLossFairValueMeasurementOfOtherAssets" xlink:label="gsm_GainsLossesRecognisedInProfitOrLossFairValueMeasurementOfOtherAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GainsLossesRecognisedInProfitOrLossFairValueMeasurementOfOtherAssets" xlink:to="gsm_GainsLossesRecognisedInProfitOrLossFairValueMeasurementOfOtherAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GainsLossesRecognisedInProfitOrLossFairValueMeasurementOfOtherAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The gains (losses) recognised in profit or loss on the fair value measurement of other assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GainsLossesRecognisedInProfitOrLossFairValueMeasurementOfOtherAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gains Losses Recognised In Profit Or Loss Fair Value Measurement Of Other Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gsm_GainsLossesRecognisedInProfitOrLossFairValueMeasurementOfOtherAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other (gain) loss</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_GainsLossesOnDisposalsOfNoncurrentAssetsAbstract" xlink:label="ifrs-full_GainsLossesOnDisposalsOfNoncurrentAssetsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainsLossesOnDisposalsOfNoncurrentAssetsAbstract" xlink:to="ifrs-full_GainsLossesOnDisposalsOfNoncurrentAssetsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainsLossesOnDisposalsOfNoncurrentAssetsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gains (losses) on disposals of non-current assets [abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GainsLossesOnDisposalsOfNoncurrentAssetsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">(Loss) gain on disposal of non-current assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisposalsIntangibleAssetsAndGoodwill" xlink:label="ifrs-full_DisposalsIntangibleAssetsAndGoodwill" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisposalsIntangibleAssetsAndGoodwill" xlink:to="ifrs-full_DisposalsIntangibleAssetsAndGoodwill_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisposalsIntangibleAssetsAndGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disposals, intangible assets and goodwill</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisposalsIntangibleAssetsAndGoodwill_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Loss on disposal of Intangible assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_GainsOnDisposalsOfPropertyPlantAndEquipment" xlink:label="ifrs-full_GainsOnDisposalsOfPropertyPlantAndEquipment" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainsOnDisposalsOfPropertyPlantAndEquipment" xlink:to="ifrs-full_GainsOnDisposalsOfPropertyPlantAndEquipment_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainsOnDisposalsOfPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gains on disposals of property, plant and equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_GainsOnDisposalsOfPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gain on disposal of Property, plant and equipment</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LossesOnDisposalsOfPropertyPlantAndEquipment" xlink:label="ifrs-full_LossesOnDisposalsOfPropertyPlantAndEquipment" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LossesOnDisposalsOfPropertyPlantAndEquipment" xlink:to="ifrs-full_LossesOnDisposalsOfPropertyPlantAndEquipment_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LossesOnDisposalsOfPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Losses on disposals of property, plant and equipment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LossesOnDisposalsOfPropertyPlantAndEquipment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Loss on disposal of Property, plant and equipment</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_GainsLossesOnDisposalsOfOtherNoncurrentAssets" xlink:label="ifrs-full_GainsLossesOnDisposalsOfOtherNoncurrentAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainsLossesOnDisposalsOfOtherNoncurrentAssets" xlink:to="ifrs-full_GainsLossesOnDisposalsOfOtherNoncurrentAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainsLossesOnDisposalsOfOtherNoncurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gains (losses) on disposals of other non-current assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_GainsLossesOnDisposalsOfOtherNoncurrentAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">(Gains) loss on disposal of other non-current assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_GainsLossesRecognisedWhenControlInSubsidiaryIsLost" xlink:label="ifrs-full_GainsLossesRecognisedWhenControlInSubsidiaryIsLost" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GainsLossesRecognisedWhenControlInSubsidiaryIsLost" xlink:to="ifrs-full_GainsLossesRecognisedWhenControlInSubsidiaryIsLost_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GainsLossesRecognisedWhenControlInSubsidiaryIsLost_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gains (losses) recognised when control of subsidiary is lost</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_GainsLossesRecognisedWhenControlInSubsidiaryIsLost_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gain on disposal of subsidiary</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_GainsLossesRecognisedWhenControlInSubsidiaryIsLost_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gain on disposal</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ProceedsFromSaleOfSubsidiaries" xlink:label="gsm_ProceedsFromSaleOfSubsidiaries" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ProceedsFromSaleOfSubsidiaries" xlink:to="gsm_ProceedsFromSaleOfSubsidiaries_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ProceedsFromSaleOfSubsidiaries_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The cash inflow from sale of majority of ownership interests in subsidiaries.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ProceedsFromSaleOfSubsidiaries_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Proceeds From Sale Of Subsidiaries</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ProceedsFromSaleOfSubsidiaries_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash proceeds</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_KeyManagementPersonnelCompensationFixedRemuneration" xlink:label="gsm_KeyManagementPersonnelCompensationFixedRemuneration" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_KeyManagementPersonnelCompensationFixedRemuneration" xlink:to="gsm_KeyManagementPersonnelCompensationFixedRemuneration_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_KeyManagementPersonnelCompensationFixedRemuneration_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of compensation to key management personnel in the form of fixed remuneration.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_KeyManagementPersonnelCompensationFixedRemuneration_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Key management personnel compensation fixed remuneration</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_KeyManagementPersonnelCompensationFixedRemuneration_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Fixed remuneration</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_KeyManagementPersonnelCompensationVariableRemuneration" xlink:label="gsm_KeyManagementPersonnelCompensationVariableRemuneration" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_KeyManagementPersonnelCompensationVariableRemuneration" xlink:to="gsm_KeyManagementPersonnelCompensationVariableRemuneration_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_KeyManagementPersonnelCompensationVariableRemuneration_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of compensation to key management personnel in the form of variable remuneration.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_KeyManagementPersonnelCompensationVariableRemuneration_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Key management personnel compensation variable remuneration</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_KeyManagementPersonnelCompensationVariableRemuneration_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Variable remuneration</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_KeyManagementPersonnelCompensationContributionsToPensionPlansAndInsurancePolicies" xlink:label="gsm_KeyManagementPersonnelCompensationContributionsToPensionPlansAndInsurancePolicies" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_KeyManagementPersonnelCompensationContributionsToPensionPlansAndInsurancePolicies" xlink:to="gsm_KeyManagementPersonnelCompensationContributionsToPensionPlansAndInsurancePolicies_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_KeyManagementPersonnelCompensationContributionsToPensionPlansAndInsurancePolicies_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of compensation to key management personnel in the form of compensation contributions to pension plans and insurance policies.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_KeyManagementPersonnelCompensationContributionsToPensionPlansAndInsurancePolicies_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Key management personnel compensation contributions to pension plans and insurance policies</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_KeyManagementPersonnelCompensationContributionsToPensionPlansAndInsurancePolicies_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Contributions to pension plans and insurance policies</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" xlink:label="ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment" xlink:to="ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Key management personnel compensation, share-based payment</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_KeyManagementPersonnelCompensationSharebasedPayment_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Share-based compensation</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_KeyManagementPersonnelCompensationTerminationBenefits" xlink:label="ifrs-full_KeyManagementPersonnelCompensationTerminationBenefits" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_KeyManagementPersonnelCompensationTerminationBenefits" xlink:to="ifrs-full_KeyManagementPersonnelCompensationTerminationBenefits_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_KeyManagementPersonnelCompensationTerminationBenefits_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Key management personnel compensation, termination benefits</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_KeyManagementPersonnelCompensationTerminationBenefits_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Termination benefits</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_KeyManagementPersonnelCompensationOtherRemuneration" xlink:label="gsm_KeyManagementPersonnelCompensationOtherRemuneration" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_KeyManagementPersonnelCompensationOtherRemuneration" xlink:to="gsm_KeyManagementPersonnelCompensationOtherRemuneration_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_KeyManagementPersonnelCompensationOtherRemuneration_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of fees paid or payable for the other expenses.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_KeyManagementPersonnelCompensationOtherRemuneration_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Key management personnel compensation other remuneration</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_KeyManagementPersonnelCompensationOtherRemuneration_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other remuneration</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_KeyManagementPersonnelCompensation" xlink:label="ifrs-full_KeyManagementPersonnelCompensation" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_KeyManagementPersonnelCompensation" xlink:to="ifrs-full_KeyManagementPersonnelCompensation_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_KeyManagementPersonnelCompensation_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Key management personnel compensation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_KeyManagementPersonnelCompensation_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Total</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_KeyManagementPersonnelLoansAndAdvancesGranted" xlink:label="gsm_KeyManagementPersonnelLoansAndAdvancesGranted" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_KeyManagementPersonnelLoansAndAdvancesGranted" xlink:to="gsm_KeyManagementPersonnelLoansAndAdvancesGranted_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_KeyManagementPersonnelLoansAndAdvancesGranted_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of key management personnel, loans and advance have been granted.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_KeyManagementPersonnelLoansAndAdvancesGranted_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Key management personnel, loans and advances granted</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_KeyManagementPersonnelLoansAndAdvancesGranted_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Loans and advances granted</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable" xlink:label="ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable" xlink:to="ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of nature and extent of risks arising from financial instruments [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TypesOfRisksAxis" xlink:label="ifrs-full_TypesOfRisksAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TypesOfRisksAxis" xlink:to="ifrs-full_TypesOfRisksAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TypesOfRisksAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Types of risks [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TypesOfRisksMember" xlink:label="ifrs-full_TypesOfRisksMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TypesOfRisksMember" xlink:to="ifrs-full_TypesOfRisksMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TypesOfRisksMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Types Of Risks [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TypesOfRisksMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Risks [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CurrencyRiskMember" xlink:label="ifrs-full_CurrencyRiskMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CurrencyRiskMember" xlink:to="ifrs-full_CurrencyRiskMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CurrencyRiskMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Currency Risk [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_CurrencyRiskMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Foreign currency risk</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LiquidityRiskMember" xlink:label="ifrs-full_LiquidityRiskMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LiquidityRiskMember" xlink:to="ifrs-full_LiquidityRiskMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LiquidityRiskMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Liquidity Risk [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LiquidityRiskMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Liquidity risk</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_RevolvingLineOfCreditMember" xlink:label="gsm_RevolvingLineOfCreditMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_RevolvingLineOfCreditMember" xlink:to="gsm_RevolvingLineOfCreditMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_RevolvingLineOfCreditMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for revolving credit facility.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_RevolvingLineOfCreditMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Revolving Line Of Credit [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_RevolvingLineOfCreditMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Revolving Credit Facility</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NewRevolvingCreditFacilityMember" xlink:label="gsm_NewRevolvingCreditFacilityMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NewRevolvingCreditFacilityMember" xlink:to="gsm_NewRevolvingCreditFacilityMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NewRevolvingCreditFacilityMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for new revolving credit facility.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NewRevolvingCreditFacilityMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">New Revolving Credit Facility [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NewRevolvingCreditFacilityMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">New Revolving Credit Facility</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems" xlink:label="ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems" xlink:to="ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of nature and extent of risks arising from financial instruments [line items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial risk management</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DrawnBorrowingFacilitiesIncludingLettersOfCredit" xlink:label="gsm_DrawnBorrowingFacilitiesIncludingLettersOfCredit" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DrawnBorrowingFacilitiesIncludingLettersOfCredit" xlink:to="gsm_DrawnBorrowingFacilitiesIncludingLettersOfCredit_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DrawnBorrowingFacilitiesIncludingLettersOfCredit_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of drawn borrowing facilities including letters of credit.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DrawnBorrowingFacilitiesIncludingLettersOfCredit_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Drawn Borrowing Facilities, Including Letters of Credit</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DrawnBorrowingFacilitiesIncludingLettersOfCredit_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount of borrowings utilized including letters of credit</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NumberOfLeaseInstallments" xlink:label="gsm_NumberOfLeaseInstallments" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NumberOfLeaseInstallments" xlink:to="gsm_NumberOfLeaseInstallments_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NumberOfLeaseInstallments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of installments in which lease payments are due.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NumberOfLeaseInstallments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of Lease Installments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NumberOfLeaseInstallments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Number of installments</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ChangeInPercentageOfVotingStockHeldOtherThanByPermittedHoldersAndItsAffiliatesWhichOccurInChangeInControl" xlink:label="gsm_ChangeInPercentageOfVotingStockHeldOtherThanByPermittedHoldersAndItsAffiliatesWhichOccurInChangeInControl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ChangeInPercentageOfVotingStockHeldOtherThanByPermittedHoldersAndItsAffiliatesWhichOccurInChangeInControl" xlink:to="gsm_ChangeInPercentageOfVotingStockHeldOtherThanByPermittedHoldersAndItsAffiliatesWhichOccurInChangeInControl_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ChangeInPercentageOfVotingStockHeldOtherThanByPermittedHoldersAndItsAffiliatesWhichOccurInChangeInControl_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the change in percentage of voting stock held other than by permitted holers and its affiliates which occur in change in control.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ChangeInPercentageOfVotingStockHeldOtherThanByPermittedHoldersAndItsAffiliatesWhichOccurInChangeInControl_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Change in Percentage of Voting Stock Held Other Than by Permitted Holders and its Affiliates Which Occur in Change in Control</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ChangeInPercentageOfVotingStockHeldOtherThanByPermittedHoldersAndItsAffiliatesWhichOccurInChangeInControl_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Change in percentage of voting stock held other than by permitted holders and its affiliates to occur change in control</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CessationOfPercentageOfVotingInterestWhichOccurInChangeInControl" xlink:label="gsm_CessationOfPercentageOfVotingInterestWhichOccurInChangeInControl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CessationOfPercentageOfVotingInterestWhichOccurInChangeInControl" xlink:to="gsm_CessationOfPercentageOfVotingInterestWhichOccurInChangeInControl_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CessationOfPercentageOfVotingInterestWhichOccurInChangeInControl_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the cessation of percentage of voting interest which occur in change in control.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CessationOfPercentageOfVotingInterestWhichOccurInChangeInControl_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cessation of Percentage of Voting Interest Which Occur in Change in Control</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_CessationOfPercentageOfVotingInterestWhichOccurInChangeInControl_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cessation of percentage of voting interest which occur in change in control</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ThresholdPercentageOfOwnershipInterestHeldByRelatedPartyLenders" xlink:label="gsm_ThresholdPercentageOfOwnershipInterestHeldByRelatedPartyLenders" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ThresholdPercentageOfOwnershipInterestHeldByRelatedPartyLenders" xlink:to="gsm_ThresholdPercentageOfOwnershipInterestHeldByRelatedPartyLenders_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ThresholdPercentageOfOwnershipInterestHeldByRelatedPartyLenders_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the threshold percentage of ownership interest held by related party lenders.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ThresholdPercentageOfOwnershipInterestHeldByRelatedPartyLenders_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Threshold Percentage of Ownership Interest Held by Related Party Lenders</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ThresholdPercentageOfOwnershipInterestHeldByRelatedPartyLenders_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Threshold percentage of ownership interest held by related party lenders</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ThresholdPercentageOfOwnershipInterestHeldByPurchaserAfterAcquisitionOfLenderShares" xlink:label="gsm_ThresholdPercentageOfOwnershipInterestHeldByPurchaserAfterAcquisitionOfLenderShares" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ThresholdPercentageOfOwnershipInterestHeldByPurchaserAfterAcquisitionOfLenderShares" xlink:to="gsm_ThresholdPercentageOfOwnershipInterestHeldByPurchaserAfterAcquisitionOfLenderShares_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ThresholdPercentageOfOwnershipInterestHeldByPurchaserAfterAcquisitionOfLenderShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the threshold percentage of ownership interest held by purchaser after acquisition of lender shares.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ThresholdPercentageOfOwnershipInterestHeldByPurchaserAfterAcquisitionOfLenderShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Threshold Percentage of Ownership Interest Held by Purchaser After Acquisition of Lender Shares</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ThresholdPercentageOfOwnershipInterestHeldByPurchaserAfterAcquisitionOfLenderShares_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Threshold percentage of ownership interest held by purchaser after acquisition of lender shares</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PercentageOfPrincipalAndInterestPayments" xlink:label="gsm_PercentageOfPrincipalAndInterestPayments" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PercentageOfPrincipalAndInterestPayments" xlink:to="gsm_PercentageOfPrincipalAndInterestPayments_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PercentageOfPrincipalAndInterestPayments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of principal and interest payments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PercentageOfPrincipalAndInterestPayments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of Principal and Interest Payments</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_BorrowingsDrawDown" xlink:label="gsm_BorrowingsDrawDown" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_BorrowingsDrawDown" xlink:to="gsm_BorrowingsDrawDown_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_BorrowingsDrawDown_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of borrowings draw down.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_BorrowingsDrawDown_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Borrowings Draw Down</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_BorrowingsDrawDown_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Borrowings</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfFinancialInstrumentsByTypeOfInterestRateTable" xlink:label="ifrs-full_DisclosureOfFinancialInstrumentsByTypeOfInterestRateTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsByTypeOfInterestRateTable" xlink:to="ifrs-full_DisclosureOfFinancialInstrumentsByTypeOfInterestRateTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinancialInstrumentsByTypeOfInterestRateTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of financial instruments by type of interest rate [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_InterestRateRiskMember" xlink:label="ifrs-full_InterestRateRiskMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_InterestRateRiskMember" xlink:to="ifrs-full_InterestRateRiskMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_InterestRateRiskMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest Rate Risk [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_InterestRateRiskMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest rate risk</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfFinancialInstrumentsByTypeOfInterestRateLineItems" xlink:label="ifrs-full_DisclosureOfFinancialInstrumentsByTypeOfInterestRateLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfFinancialInstrumentsByTypeOfInterestRateLineItems" xlink:to="ifrs-full_DisclosureOfFinancialInstrumentsByTypeOfInterestRateLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfFinancialInstrumentsByTypeOfInterestRateLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of financial instruments by type of interest rate [line items]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_BorrowingsAndOtherFinancialLiabilities" xlink:label="gsm_BorrowingsAndOtherFinancialLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_BorrowingsAndOtherFinancialLiabilities" xlink:to="gsm_BorrowingsAndOtherFinancialLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_BorrowingsAndOtherFinancialLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents borrowings and other financial liabilities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_BorrowingsAndOtherFinancialLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Borrowings And Other Financial Liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="gsm_BorrowingsAndOtherFinancialLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Bank borrowings</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_InterestBearingFinancialLiabilities" xlink:label="gsm_InterestBearingFinancialLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_InterestBearingFinancialLiabilities" xlink:to="gsm_InterestBearingFinancialLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_InterestBearingFinancialLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of interest bearing financial liabilities.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_InterestBearingFinancialLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest Bearing Financial Liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gsm_InterestBearingFinancialLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest-bearing financial liabilities</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PercentageOfExposureToFloatingInterestRate" xlink:label="gsm_PercentageOfExposureToFloatingInterestRate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PercentageOfExposureToFloatingInterestRate" xlink:to="gsm_PercentageOfExposureToFloatingInterestRate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PercentageOfExposureToFloatingInterestRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of exposure to floating interest rate.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PercentageOfExposureToFloatingInterestRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of Exposure to Floating Interest Rate</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PercentageOfExposureToFloatingInterestRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of exposure to floating interest rate</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IncreaseDecreaseInFloatingRateOfBorrowingsPercentage" xlink:label="gsm_IncreaseDecreaseInFloatingRateOfBorrowingsPercentage" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IncreaseDecreaseInFloatingRateOfBorrowingsPercentage" xlink:to="gsm_IncreaseDecreaseInFloatingRateOfBorrowingsPercentage_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IncreaseDecreaseInFloatingRateOfBorrowingsPercentage_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The percentage of sensitive analysis of floating interest rate of borrowings.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IncreaseDecreaseInFloatingRateOfBorrowingsPercentage_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (decrease) in floating rate of borrowings, percentage</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IncreaseDecreaseInFloatingRateOfBorrowingsPercentage_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase in floating interest rate, Percentage</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_AdditionalBorrowingCostChangeInFloatingInterestRate" xlink:label="gsm_AdditionalBorrowingCostChangeInFloatingInterestRate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_AdditionalBorrowingCostChangeInFloatingInterestRate" xlink:to="gsm_AdditionalBorrowingCostChangeInFloatingInterestRate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_AdditionalBorrowingCostChangeInFloatingInterestRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of change in borrowing cost due to one percent change in floating interest borrowing rate.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_AdditionalBorrowingCostChangeInFloatingInterestRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Additional borrowing cost, change in floating interest rate</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_AdditionalBorrowingCostChangeInFloatingInterestRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Additional borrowing cost if 1% increase in floating interest rate</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PrincipalDebtExceededByDerivatives" xlink:label="gsm_PrincipalDebtExceededByDerivatives" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PrincipalDebtExceededByDerivatives" xlink:to="gsm_PrincipalDebtExceededByDerivatives_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PrincipalDebtExceededByDerivatives_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount by which the cross currency swap exceeds the principal amount of the entity's debt instruments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PrincipalDebtExceededByDerivatives_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Principal Debt Exceeded By Derivatives</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PrincipalDebtExceededByDerivatives_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount by which the cross currency swap exceeds debt instruments</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PercentageOfSensitivityOfEuroAppreciation" xlink:label="gsm_PercentageOfSensitivityOfEuroAppreciation" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PercentageOfSensitivityOfEuroAppreciation" xlink:to="gsm_PercentageOfSensitivityOfEuroAppreciation_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PercentageOfSensitivityOfEuroAppreciation_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The percentage of sensitivity of appreciation of euro currency.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PercentageOfSensitivityOfEuroAppreciation_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of sensitivity of euro, appreciation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PercentageOfSensitivityOfEuroAppreciation_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Appreciation of euro (Percentage)</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PercentageOfSensitivityOfEuroDepreciation" xlink:label="gsm_PercentageOfSensitivityOfEuroDepreciation" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PercentageOfSensitivityOfEuroDepreciation" xlink:to="gsm_PercentageOfSensitivityOfEuroDepreciation_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PercentageOfSensitivityOfEuroDepreciation_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The percentage of sensitivity of depreciation of euro currency.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PercentageOfSensitivityOfEuroDepreciation_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Percentage of sensitivity of euro, depreciation</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PercentageOfSensitivityOfEuroDepreciation_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Depreciation of euro (percentage)</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_SensitivityOfForeignCurrencyLossOnPortionOfSwapAccountedForAtFairValueThroughProfitOrLoss" xlink:label="gsm_SensitivityOfForeignCurrencyLossOnPortionOfSwapAccountedForAtFairValueThroughProfitOrLoss" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_SensitivityOfForeignCurrencyLossOnPortionOfSwapAccountedForAtFairValueThroughProfitOrLoss" xlink:to="gsm_SensitivityOfForeignCurrencyLossOnPortionOfSwapAccountedForAtFairValueThroughProfitOrLoss_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_SensitivityOfForeignCurrencyLossOnPortionOfSwapAccountedForAtFairValueThroughProfitOrLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of loss that would be recognized in respect of the portion of the cross currency swap accounted for at fair value through profit or loss if the Euro was to strengthen against the US Dollar by 10%.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_SensitivityOfForeignCurrencyLossOnPortionOfSwapAccountedForAtFairValueThroughProfitOrLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Sensitivity Of Foreign Currency Loss On Portion Of Swap Accounted For At Fair Value Through Profit Or Loss</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_SensitivityOfForeignCurrencyLossOnPortionOfSwapAccountedForAtFairValueThroughProfitOrLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Loss on portion of cross currency swap accounted for at fair value through profit or loss on appreciation of the Euro by 10% over USD</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_SensitivityOfForeignCurrencyGainOnPortionOfSwapAccountedForAtFairValueThroughProfitOrLoss" xlink:label="gsm_SensitivityOfForeignCurrencyGainOnPortionOfSwapAccountedForAtFairValueThroughProfitOrLoss" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_SensitivityOfForeignCurrencyGainOnPortionOfSwapAccountedForAtFairValueThroughProfitOrLoss" xlink:to="gsm_SensitivityOfForeignCurrencyGainOnPortionOfSwapAccountedForAtFairValueThroughProfitOrLoss_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_SensitivityOfForeignCurrencyGainOnPortionOfSwapAccountedForAtFairValueThroughProfitOrLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of gain that would be recognized in respect of the portion of the cross currency swap accounted for at fair value through profit or loss if the Euro was to weaken against the US Dollar by 10%.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_SensitivityOfForeignCurrencyGainOnPortionOfSwapAccountedForAtFairValueThroughProfitOrLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Sensitivity Of Foreign Currency Gain On Portion Of Swap Accounted For At Fair Value Through Profit Or Loss</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_SensitivityOfForeignCurrencyGainOnPortionOfSwapAccountedForAtFairValueThroughProfitOrLoss_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gain on portion of cross currency swap accounted for at fair value through profit or loss on depreciation of the Euro by 10% against USD</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember" xlink:label="ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember" xlink:to="ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Later Than Two Years And Not Later Than Five Years [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LaterThanTwoYearsAndNotLaterThanFiveYearsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Later than two years and not later than five years [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems" xlink:label="ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems" xlink:to="ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of maturity analysis for non-derivative financial liabilities [line items]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NetUndiscountedCashFlowsAbstract" xlink:label="gsm_NetUndiscountedCashFlowsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NetUndiscountedCashFlowsAbstract" xlink:to="gsm_NetUndiscountedCashFlowsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NetUndiscountedCashFlowsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NetUndiscountedCashFlowsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net Undiscounted Cash Flows [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NetUndiscountedCashFlowsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net undiscounted cash flows</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_BankBorrowingsUndiscountedCashFlows" xlink:label="ifrs-full_BankBorrowingsUndiscountedCashFlows" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BankBorrowingsUndiscountedCashFlows" xlink:to="ifrs-full_BankBorrowingsUndiscountedCashFlows_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BankBorrowingsUndiscountedCashFlows_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Bank borrowings, undiscounted cash flows</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_BankBorrowingsUndiscountedCashFlows_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Bank borrowings</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_GrossFinanceLeaseObligations" xlink:label="ifrs-full_GrossFinanceLeaseObligations" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_GrossFinanceLeaseObligations" xlink:to="ifrs-full_GrossFinanceLeaseObligations_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_GrossFinanceLeaseObligations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gross finance lease obligations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_GrossFinanceLeaseObligations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Finance leases</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DebtInstrumentsUndiscountedCashFlow" xlink:label="gsm_DebtInstrumentsUndiscountedCashFlow" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DebtInstrumentsUndiscountedCashFlow" xlink:to="gsm_DebtInstrumentsUndiscountedCashFlow_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DebtInstrumentsUndiscountedCashFlow_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of contractual undiscounted cash flows in relation to debt instruments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DebtInstrumentsUndiscountedCashFlow_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Debt Instruments Undiscounted Cash Flow</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DebtInstrumentsUndiscountedCashFlow_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Debt instruments</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FinancialLoansFromGovernmentAgenciesUndiscountedCashFlows" xlink:label="gsm_FinancialLoansFromGovernmentAgenciesUndiscountedCashFlows" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FinancialLoansFromGovernmentAgenciesUndiscountedCashFlows" xlink:to="gsm_FinancialLoansFromGovernmentAgenciesUndiscountedCashFlows_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FinancialLoansFromGovernmentAgenciesUndiscountedCashFlows_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of contractual undiscounted cash flows in relation financial loans from government agencies.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FinancialLoansFromGovernmentAgenciesUndiscountedCashFlows_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial Loans From Government Agencies Undiscounted Cash Flows</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FinancialLoansFromGovernmentAgenciesUndiscountedCashFlows_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial loans from government agencies</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DerivativeFinancialInstrumentsUndiscountedCashFlows" xlink:label="gsm_DerivativeFinancialInstrumentsUndiscountedCashFlows" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DerivativeFinancialInstrumentsUndiscountedCashFlows" xlink:to="gsm_DerivativeFinancialInstrumentsUndiscountedCashFlows_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DerivativeFinancialInstrumentsUndiscountedCashFlows_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of contractual undiscounted cash flows in relation to derivative financial instruments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DerivativeFinancialInstrumentsUndiscountedCashFlows_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Derivative Financial Instruments Undiscounted Cash Flows</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DerivativeFinancialInstrumentsUndiscountedCashFlows_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Derivative financial instruments</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_PayablesToRelatedPartiesUndiscountedCashFlows" xlink:label="gsm_PayablesToRelatedPartiesUndiscountedCashFlows" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_PayablesToRelatedPartiesUndiscountedCashFlows" xlink:to="gsm_PayablesToRelatedPartiesUndiscountedCashFlows_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_PayablesToRelatedPartiesUndiscountedCashFlows_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of contractual undiscounted cash flows in relation to payables to related parties.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_PayablesToRelatedPartiesUndiscountedCashFlows_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Payables To Related Parties Undiscounted Cash Flows</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_PayablesToRelatedPartiesUndiscountedCashFlows_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Payables to related parties</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows" xlink:label="ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows" xlink:to="ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade and other payables, undiscounted cash flows</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TradeAndOtherPayablesUndiscountedCashFlows_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade and other payables</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NonderivativeFinancialLiabilitiesUndiscountedCashFlows" xlink:label="ifrs-full_NonderivativeFinancialLiabilitiesUndiscountedCashFlows" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NonderivativeFinancialLiabilitiesUndiscountedCashFlows" xlink:to="ifrs-full_NonderivativeFinancialLiabilitiesUndiscountedCashFlows_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NonderivativeFinancialLiabilitiesUndiscountedCashFlows_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-derivative financial liabilities, undiscounted cash flows</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="ifrs-full_NonderivativeFinancialLiabilitiesUndiscountedCashFlows_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Contractual undiscounted payments</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GrossInflowsAndOutflowsAbstract" xlink:label="gsm_GrossInflowsAndOutflowsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GrossInflowsAndOutflowsAbstract" xlink:to="gsm_GrossInflowsAndOutflowsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GrossInflowsAndOutflowsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GrossInflowsAndOutflowsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gross Inflows And Outflows [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GrossInflowsAndOutflowsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gross inflows and outflows</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GrossCashInflowDerivativeFinancialInstruments" xlink:label="gsm_GrossCashInflowDerivativeFinancialInstruments" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GrossCashInflowDerivativeFinancialInstruments" xlink:to="gsm_GrossCashInflowDerivativeFinancialInstruments_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GrossCashInflowDerivativeFinancialInstruments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount of gross cash inflow from derivative financial instruments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GrossCashInflowDerivativeFinancialInstruments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gross Cash Inflow Derivative Financial Instruments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GrossCashInflowDerivativeFinancialInstruments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Inflows</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GrossCashOutflowDerivativeFinancialInstruments" xlink:label="gsm_GrossCashOutflowDerivativeFinancialInstruments" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GrossCashOutflowDerivativeFinancialInstruments" xlink:to="gsm_GrossCashOutflowDerivativeFinancialInstruments_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GrossCashOutflowDerivativeFinancialInstruments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount of gross cash outflow from derivative financial instruments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GrossCashOutflowDerivativeFinancialInstruments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Gross Cash Outflow Derivative Financial Instruments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gsm_GrossCashOutflowDerivativeFinancialInstruments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Outflows</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NetCashFlowDerivativeFinancialInstruments" xlink:label="gsm_NetCashFlowDerivativeFinancialInstruments" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NetCashFlowDerivativeFinancialInstruments" xlink:to="gsm_NetCashFlowDerivativeFinancialInstruments_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NetCashFlowDerivativeFinancialInstruments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net cash flow from derivative financial instruments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NetCashFlowDerivativeFinancialInstruments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net Cash Flow Derivative Financial Instruments</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="gsm_NetCashFlowDerivativeFinancialInstruments_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net cash flow</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_NetCashFlowDiscounted" xlink:label="gsm_NetCashFlowDiscounted" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_NetCashFlowDiscounted" xlink:to="gsm_NetCashFlowDiscounted_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_NetCashFlowDiscounted_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amount of net cash flow as discounted at applicable interbank rates.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_NetCashFlowDiscounted_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Net Cash Flow Discounted</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_NetCashFlowDiscounted_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Discounted at the applicable interbank rates</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable" xlink:label="ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable" xlink:to="ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of reconciliation of liabilities arising from financing activities [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis" xlink:label="ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis" xlink:to="ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Liabilities arising from financing activities [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LiabilitiesArisingFromFinancingActivitiesMember" xlink:label="ifrs-full_LiabilitiesArisingFromFinancingActivitiesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LiabilitiesArisingFromFinancingActivitiesMember" xlink:to="ifrs-full_LiabilitiesArisingFromFinancingActivitiesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LiabilitiesArisingFromFinancingActivitiesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Liabilities Arising From Financing Activities [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LiabilitiesArisingFromFinancingActivitiesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Liabilities arising from financing activities [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LongtermBorrowingsMember" xlink:label="ifrs-full_LongtermBorrowingsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LongtermBorrowingsMember" xlink:to="ifrs-full_LongtermBorrowingsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LongtermBorrowingsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Longterm Borrowings [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LongtermBorrowingsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Bank borrowings.</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LeaseLiabilitiesMember" xlink:label="ifrs-full_LeaseLiabilitiesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LeaseLiabilitiesMember" xlink:to="ifrs-full_LeaseLiabilitiesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LeaseLiabilitiesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Lease Liabilities [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LeaseLiabilitiesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Obligations under finance leases.</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DebtInstrumentsMember" xlink:label="gsm_DebtInstrumentsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DebtInstrumentsMember" xlink:to="gsm_DebtInstrumentsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DebtInstrumentsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for debt instruments.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DebtInstrumentsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Debt Instruments [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DebtInstrumentsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Debt instruments</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_LoansFromGovernmentMember" xlink:label="gsm_LoansFromGovernmentMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_LoansFromGovernmentMember" xlink:to="gsm_LoansFromGovernmentMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_LoansFromGovernmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for loans from government agencies.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_LoansFromGovernmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Loans From Government [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_LoansFromGovernmentMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial loans from government agencies</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AssetsHeldToHedgeLiabilitiesArisingFromFinancingActivitiesMember" xlink:label="ifrs-full_AssetsHeldToHedgeLiabilitiesArisingFromFinancingActivitiesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AssetsHeldToHedgeLiabilitiesArisingFromFinancingActivitiesMember" xlink:to="ifrs-full_AssetsHeldToHedgeLiabilitiesArisingFromFinancingActivitiesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AssetsHeldToHedgeLiabilitiesArisingFromFinancingActivitiesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Assets Held To Hedge Liabilities Arising From Financing Activities [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AssetsHeldToHedgeLiabilitiesArisingFromFinancingActivitiesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Derivative financial instruments</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems" xlink:label="ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems" xlink:to="ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfReconciliationOfLiabilitiesArisingFromFinancingActivitiesLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of reconciliation of liabilities arising from financing activities [line items]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ChangesInLiabilitiesArisingFromFinancingActivitiesAbstract" xlink:label="ifrs-full_ChangesInLiabilitiesArisingFromFinancingActivitiesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ChangesInLiabilitiesArisingFromFinancingActivitiesAbstract" xlink:to="ifrs-full_ChangesInLiabilitiesArisingFromFinancingActivitiesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ChangesInLiabilitiesArisingFromFinancingActivitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Changes in liabilities arising from financing activities [abstract]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LiabilitiesArisingFromFinancingActivities" xlink:label="ifrs-full_LiabilitiesArisingFromFinancingActivities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LiabilitiesArisingFromFinancingActivities" xlink:to="ifrs-full_LiabilitiesArisingFromFinancingActivities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LiabilitiesArisingFromFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Liabilities arising from financing activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="ifrs-full_LiabilitiesArisingFromFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">End of period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="ifrs-full_LiabilitiesArisingFromFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Beginning of period</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IncreaseDecreaseThroughReclassificationOfBusinessHeldForSaleLiabilitiesArisingFromFinancingActivities" xlink:label="gsm_IncreaseDecreaseThroughReclassificationOfBusinessHeldForSaleLiabilitiesArisingFromFinancingActivities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IncreaseDecreaseThroughReclassificationOfBusinessHeldForSaleLiabilitiesArisingFromFinancingActivities" xlink:to="gsm_IncreaseDecreaseThroughReclassificationOfBusinessHeldForSaleLiabilitiesArisingFromFinancingActivities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IncreaseDecreaseThroughReclassificationOfBusinessHeldForSaleLiabilitiesArisingFromFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The increase (decrease) in liabilities arising from financing activities resulting from the reclassification of business held for sale.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IncreaseDecreaseThroughReclassificationOfBusinessHeldForSaleLiabilitiesArisingFromFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase Decrease Through Reclassification Of Business Held For Sale Liabilities Arising From Financing Activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IncreaseDecreaseThroughReclassificationOfBusinessHeldForSaleLiabilitiesArisingFromFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Reclassification of business held for sale</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities" xlink:label="ifrs-full_IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities" xlink:to="ifrs-full_IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (decrease) through financing cash flows, liabilities arising from financing activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughFinancingCashFlowsLiabilitiesArisingFromFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Changes from financing cash flows</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities" xlink:label="ifrs-full_IncreaseDecreaseThroughEffectOfChangesInForeignExchangeRatesLiabilitiesArisingFromFinancingActivities" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities" xlink:label="ifrs-full_IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase (decrease) through other changes, liabilities arising from financing activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other changes</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_OtherOutflowsClassifiedAsFinancingActivities" xlink:label="gsm_OtherOutflowsClassifiedAsFinancingActivities" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_OtherOutflowsClassifiedAsFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amounts paid due to financing activities classified as other.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_OtherOutflowsClassifiedAsFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Outflows Classified As Financing Activities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gsm_OtherOutflowsClassifiedAsFinancingActivities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other amounts paid due to financing activities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:label="ifrs-full_LevelsOfFairValueHierarchyAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LevelsOfFairValueHierarchyAxis" xlink:to="ifrs-full_LevelsOfFairValueHierarchyAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LevelsOfFairValueHierarchyAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Levels of fair value hierarchy [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AllLevelsOfFairValueHierarchyMember" xlink:label="ifrs-full_AllLevelsOfFairValueHierarchyMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AllLevelsOfFairValueHierarchyMember" xlink:to="ifrs-full_AllLevelsOfFairValueHierarchyMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AllLevelsOfFairValueHierarchyMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">All Levels Of Fair Value Hierarchy [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AllLevelsOfFairValueHierarchyMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">All levels of fair value hierarchy [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_Level1OfFairValueHierarchyMember" xlink:label="ifrs-full_Level1OfFairValueHierarchyMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Level1OfFairValueHierarchyMember" xlink:to="ifrs-full_Level1OfFairValueHierarchyMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Level1OfFairValueHierarchyMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Level1 Of Fair Value Hierarchy [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_Level1OfFairValueHierarchyMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Level 1 of fair value hierarchy [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_Level2OfFairValueHierarchyMember" xlink:label="ifrs-full_Level2OfFairValueHierarchyMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Level2OfFairValueHierarchyMember" xlink:to="ifrs-full_Level2OfFairValueHierarchyMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Level2OfFairValueHierarchyMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Level2 Of Fair Value Hierarchy [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_Level2OfFairValueHierarchyMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Level 2 of fair value hierarchy [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_Level3OfFairValueHierarchyMember" xlink:label="ifrs-full_Level3OfFairValueHierarchyMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_Level3OfFairValueHierarchyMember" xlink:to="ifrs-full_Level3OfFairValueHierarchyMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_Level3OfFairValueHierarchyMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Level3 Of Fair Value Hierarchy [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_Level3OfFairValueHierarchyMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Level 3 of fair value hierarchy [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AtFairValueMember" xlink:label="ifrs-full_AtFairValueMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AtFairValueMember" xlink:to="ifrs-full_AtFairValueMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AtFairValueMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">At Fair Value [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AtFairValueMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">At fair value [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_MiscellaneousAssetsAbstract" xlink:label="ifrs-full_MiscellaneousAssetsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MiscellaneousAssetsAbstract" xlink:to="ifrs-full_MiscellaneousAssetsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MiscellaneousAssetsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Miscellaneous assets [abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_MiscellaneousAssetsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CategoriesOfFinancialAssetsAbstract" xlink:label="ifrs-full_CategoriesOfFinancialAssetsAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CategoriesOfFinancialAssetsAbstract" xlink:to="ifrs-full_CategoriesOfFinancialAssetsAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CategoriesOfFinancialAssetsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Categories of financial assets [abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_CategoriesOfFinancialAssetsAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other financial assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DerivativeFinancialLiabilities" xlink:label="ifrs-full_DerivativeFinancialLiabilities" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DerivativeFinancialLiabilities" xlink:to="ifrs-full_DerivativeFinancialLiabilities_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DerivativeFinancialLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Derivative financial liabilities</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_DerivativeFinancialLiabilities_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other financial liabilities - derivatives</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_MiscellaneousLiabilitiesAbstract" xlink:label="ifrs-full_MiscellaneousLiabilitiesAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MiscellaneousLiabilitiesAbstract" xlink:to="ifrs-full_MiscellaneousLiabilitiesAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MiscellaneousLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Miscellaneous liabilities [abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_MiscellaneousLiabilitiesAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other liabilities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ContingentLiabilitiesRecognisedInBusinessCombination" xlink:label="ifrs-full_ContingentLiabilitiesRecognisedInBusinessCombination" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ContingentLiabilitiesRecognisedInBusinessCombination_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Contingent liabilities recognised in business combination</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_ContingentLiabilitiesRecognisedInBusinessCombination_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Contingent consideration in a business combinations</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_AssetsAndLiabilitiesMeasuredAtFairValueAbstract" xlink:label="gsm_AssetsAndLiabilitiesMeasuredAtFairValueAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_AssetsAndLiabilitiesMeasuredAtFairValueAbstract" xlink:to="gsm_AssetsAndLiabilitiesMeasuredAtFairValueAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_AssetsAndLiabilitiesMeasuredAtFairValueAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">n/a</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_AssetsAndLiabilitiesMeasuredAtFairValueAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Assets And Liabilities Measured At Fair Value [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_AssetsAndLiabilitiesMeasuredAtFairValueAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Assets and liabilities measured at fair value</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IfrsFairValueNetAssetLiability" xlink:label="gsm_IfrsFairValueNetAssetLiability" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IfrsFairValueNetAssetLiability" xlink:to="gsm_IfrsFairValueNetAssetLiability_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IfrsFairValueNetAssetLiability_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Fair value of asset after deduction of liability.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IfrsFairValueNetAssetLiability_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ifrs Fair Value Net Asset Liability</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="gsm_IfrsFairValueNetAssetLiability_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">End of period</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="gsm_IfrsFairValueNetAssetLiability_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Beginning of period</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisposalsBiologicalAssets" xlink:label="ifrs-full_DisposalsBiologicalAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisposalsBiologicalAssets" xlink:to="ifrs-full_DisposalsBiologicalAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisposalsBiologicalAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disposals, biological assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="ifrs-full_DisposalsBiologicalAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disposals of biological assets</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FairValueNetAssetLiabilityTranslationDifferencesAndOther" xlink:label="gsm_FairValueNetAssetLiabilityTranslationDifferencesAndOther" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FairValueNetAssetLiabilityTranslationDifferencesAndOther_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents of decrease in the fair value net asset liability due to translation differences and other.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FairValueNetAssetLiabilityTranslationDifferencesAndOther_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Fair Value Net Asset Liability Translation Differences And Other</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="gsm_FairValueNetAssetLiabilityTranslationDifferencesAndOther_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Translation differences and other</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations" xlink:label="ifrs-full_ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations" xlink:to="ifrs-full_ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Proceeds from disposal of non-current assets or disposal groups classified as held for sale and discontinued operations</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash consideration</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Proceeds from divested of certain timber farm plantations and associated property, plant and equipment</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_MeanAnnualIncrementIndexForGumToDetermineAnnualGrowthRate" xlink:label="gsm_MeanAnnualIncrementIndexForGumToDetermineAnnualGrowthRate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_MeanAnnualIncrementIndexForGumToDetermineAnnualGrowthRate" xlink:to="gsm_MeanAnnualIncrementIndexForGumToDetermineAnnualGrowthRate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_MeanAnnualIncrementIndexForGumToDetermineAnnualGrowthRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The value of mean annual increment index for gum to determine annual growth rate.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_MeanAnnualIncrementIndexForGumToDetermineAnnualGrowthRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Mean annual increment index for gum to determine annual growth rate</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_MeanAnnualIncrementIndexForGumToDetermineAnnualGrowthRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">MAI for gum to determine annual growth rate</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_MeanAnnualIncrementIndexForPineToDetermineAnnualGrowthRate" xlink:label="gsm_MeanAnnualIncrementIndexForPineToDetermineAnnualGrowthRate" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_MeanAnnualIncrementIndexForPineToDetermineAnnualGrowthRate" xlink:to="gsm_MeanAnnualIncrementIndexForPineToDetermineAnnualGrowthRate_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_MeanAnnualIncrementIndexForPineToDetermineAnnualGrowthRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The value of mean annual increment index for pine to determine annual growth rate.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_MeanAnnualIncrementIndexForPineToDetermineAnnualGrowthRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Mean annual increment index for pine to determine annual growth rate</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_MeanAnnualIncrementIndexForPineToDetermineAnnualGrowthRate_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">MAI for pine to determine annual growth rate</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DensityIndexUsedToConvertCubicMetersOfWoodToMetricTonsForPine" xlink:label="gsm_DensityIndexUsedToConvertCubicMetersOfWoodToMetricTonsForPine" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DensityIndexUsedToConvertCubicMetersOfWoodToMetricTonsForPine" xlink:to="gsm_DensityIndexUsedToConvertCubicMetersOfWoodToMetricTonsForPine_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DensityIndexUsedToConvertCubicMetersOfWoodToMetricTonsForPine_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The value of density index used to convert cubic meters of wood to metric tons for pine.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DensityIndexUsedToConvertCubicMetersOfWoodToMetricTonsForPine_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Density index used to convert cubic meters of wood to metric tons for pine</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DensityIndexUsedToConvertCubicMetersOfWoodToMetricTonsForPine_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Density index for pine</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DensityIndexUsedToConvertCubicMetersOfWoodToMetricTonsForWoodPulp" xlink:label="gsm_DensityIndexUsedToConvertCubicMetersOfWoodToMetricTonsForWoodPulp" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DensityIndexUsedToConvertCubicMetersOfWoodToMetricTonsForWoodPulp" xlink:to="gsm_DensityIndexUsedToConvertCubicMetersOfWoodToMetricTonsForWoodPulp_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DensityIndexUsedToConvertCubicMetersOfWoodToMetricTonsForWoodPulp_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The value of density index used to convert cubic meters of wood to metric tons for wood pulp.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DensityIndexUsedToConvertCubicMetersOfWoodToMetricTonsForWoodPulp_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Density index used to convert cubic meters of wood to metric tons for wood pulp</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DensityIndexUsedToConvertCubicMetersOfWoodToMetricTonsForWoodPulp_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Density index for wood pulp</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_AdjustmentToCarryingAmountOfAssets" xlink:label="gsm_AdjustmentToCarryingAmountOfAssets" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_AdjustmentToCarryingAmountOfAssets" xlink:to="gsm_AdjustmentToCarryingAmountOfAssets_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_AdjustmentToCarryingAmountOfAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The amount of adjustment to the carrying amount of its assets equivalent to the depreciation that would have been charged if the business had not been classified as held for sale.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_AdjustmentToCarryingAmountOfAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustment To Carrying Amount of Assets</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_AdjustmentToCarryingAmountOfAssets_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Adjustment to the carrying amount of its assets equivalent to the depreciation that would have been charged if the business had not been classified as held for sale</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable" xlink:label="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable" xlink:to="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodTable_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of non-adjusting events after reporting period [table]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:label="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems" xlink:to="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Disclosure of non-adjusting events after reporting period [line items]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Events after the reporting period</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_AmendedRevolvingCreditFacilityAbstract" xlink:label="gsm_AmendedRevolvingCreditFacilityAbstract" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_AmendedRevolvingCreditFacilityAbstract" xlink:to="gsm_AmendedRevolvingCreditFacilityAbstract_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_AmendedRevolvingCreditFacilityAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">No definition available.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_AmendedRevolvingCreditFacilityAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amended revolving credit facility [Abstract]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_AmendedRevolvingCreditFacilityAbstract_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amended Revolving Credit Facility</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_DebtInstrumentCovenantThresholdAmountOfMinimumCashLiquidityLevel" xlink:label="gsm_DebtInstrumentCovenantThresholdAmountOfMinimumCashLiquidityLevel" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_DebtInstrumentCovenantThresholdAmountOfMinimumCashLiquidityLevel" xlink:to="gsm_DebtInstrumentCovenantThresholdAmountOfMinimumCashLiquidityLevel_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_DebtInstrumentCovenantThresholdAmountOfMinimumCashLiquidityLevel_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">The threshold amount of minimum cash liquidity level which is greater to be maintained under the debt instrument covenant.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_DebtInstrumentCovenantThresholdAmountOfMinimumCashLiquidityLevel_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Debt Instrument Covenant, Threshold Amount Of Minimum Cash Liquidity Level</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_DebtInstrumentCovenantThresholdAmountOfMinimumCashLiquidityLevel_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Minimum cash liquidity</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NewIFRSsAxis" xlink:label="ifrs-full_NewIFRSsAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NewIFRSsAxis" xlink:to="ifrs-full_NewIFRSsAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NewIFRSsAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">New IFRSs [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NewIFRSsMember" xlink:label="ifrs-full_NewIFRSsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NewIFRSsMember" xlink:to="ifrs-full_NewIFRSsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NewIFRSsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">New I F R Ss [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NewIFRSsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">New IFRSs [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_IncreaseDecreaseDueToApplicationOfIfrs16Member" xlink:label="gsm_IncreaseDecreaseDueToApplicationOfIfrs16Member" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_IncreaseDecreaseDueToApplicationOfIfrs16Member" xlink:to="gsm_IncreaseDecreaseDueToApplicationOfIfrs16Member_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_IncreaseDecreaseDueToApplicationOfIfrs16Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for the financial effect of application of IFRS 16.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_IncreaseDecreaseDueToApplicationOfIfrs16Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Increase Decrease Due To Application Of Ifrs16 [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_IncreaseDecreaseDueToApplicationOfIfrs16Member_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">IFRS 16</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_GlencoreInternationalAgMember" xlink:label="gsm_GlencoreInternationalAgMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_GlencoreInternationalAgMember" xlink:to="gsm_GlencoreInternationalAgMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_GlencoreInternationalAgMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Glencore International AG.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_GlencoreInternationalAgMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Glencore International Ag [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_GlencoreInternationalAgMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Glencore</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:label="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis" xlink:to="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NonadjustingEventsAfterReportingPeriodAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-adjusting events after reporting period [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_NonadjustingEventsMember" xlink:label="ifrs-full_NonadjustingEventsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_NonadjustingEventsMember" xlink:to="ifrs-full_NonadjustingEventsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_NonadjustingEventsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Nonadjusting Events [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_NonadjustingEventsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Non-adjusting events after reporting period [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_MajorBusinessCombinationMember" xlink:label="ifrs-full_MajorBusinessCombinationMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_MajorBusinessCombinationMember" xlink:to="ifrs-full_MajorBusinessCombinationMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_MajorBusinessCombinationMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Major Business Combination [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_MajorBusinessCombinationMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Major business combination</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_KintukSasAndKintukAsMember" xlink:label="gsm_KintukSasAndKintukAsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_KintukSasAndKintukAsMember" xlink:to="gsm_KintukSasAndKintukAsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_KintukSasAndKintukAsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Information pertaining to the purchase of Kintuk (France) SAS and Kintuk AS.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_KintukSasAndKintukAsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Kintuk Sas And Kintuk As [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_KintukSasAndKintukAsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Kintuk</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroglobeManganNorgeAndFerroglobeManganeseFranceMember" xlink:label="gsm_FerroglobeManganNorgeAndFerroglobeManganeseFranceMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroglobeManganNorgeAndFerroglobeManganeseFranceMember" xlink:to="gsm_FerroglobeManganNorgeAndFerroglobeManganeseFranceMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroglobeManganNorgeAndFerroglobeManganeseFranceMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for Ferroglobe Mangan Norge and Ferroglobe Manganese France .</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_FerroglobeManganNorgeAndFerroglobeManganeseFranceMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroglobe Mangan Norge And Ferroglobe Manganese France [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroglobeManganNorgeAndFerroglobeManganeseFranceMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroglobe Mangan Norge And Ferroglobe Manganese France Member</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_CategoriesOfFinancialAssetsAxis" xlink:label="ifrs-full_CategoriesOfFinancialAssetsAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_CategoriesOfFinancialAssetsAxis" xlink:to="ifrs-full_CategoriesOfFinancialAssetsAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_CategoriesOfFinancialAssetsAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Categories of financial assets [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_FinancialAssetsCategoryMember" xlink:label="ifrs-full_FinancialAssetsCategoryMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinancialAssetsCategoryMember" xlink:to="ifrs-full_FinancialAssetsCategoryMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinancialAssetsCategoryMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial Assets Category [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FinancialAssetsCategoryMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial assets, category [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember" xlink:label="ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember" xlink:to="ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial Assets At Amortised Cost Category [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FinancialAssetsAtAmortisedCostCategoryMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Amortised cost</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember" xlink:label="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember" xlink:to="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial Assets At Fair Value Through Profit Or Loss Mandatorily Measured At Fair Value Category [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FinancialAssetsAtFairValueThroughProfitOrLossMandatorilyMeasuredAtFairValueCategoryMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Fair value through profit or loss - mandatorily measured</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_ClassesOfFinancialAssetsAxis" xlink:label="ifrs-full_ClassesOfFinancialAssetsAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_ClassesOfFinancialAssetsAxis" xlink:to="ifrs-full_ClassesOfFinancialAssetsAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_ClassesOfFinancialAssetsAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Classes of financial assets [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_FinancialAssetsMember" xlink:label="ifrs-full_FinancialAssetsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinancialAssetsMember" xlink:to="ifrs-full_FinancialAssetsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinancialAssetsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial Assets [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FinancialAssetsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial assets, class [member]</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_OtherFinancialAssetsMember" xlink:label="gsm_OtherFinancialAssetsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_OtherFinancialAssetsMember" xlink:to="gsm_OtherFinancialAssetsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_OtherFinancialAssetsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for other financial assets.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_OtherFinancialAssetsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Financial Assets [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_OtherFinancialAssetsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other financial assets</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_ReceivablesFromRelatedPartiesMember" xlink:label="gsm_ReceivablesFromRelatedPartiesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_ReceivablesFromRelatedPartiesMember" xlink:to="gsm_ReceivablesFromRelatedPartiesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_ReceivablesFromRelatedPartiesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for receivables from related parties.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_ReceivablesFromRelatedPartiesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Receivables From Related Parties [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_ReceivablesFromRelatedPartiesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Receivables from related parties</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TradeReceivablesMember" xlink:label="ifrs-full_TradeReceivablesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TradeReceivablesMember" xlink:to="ifrs-full_TradeReceivablesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TradeReceivablesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade Receivables [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TradeReceivablesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Trade receivables</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_OtherReceivablesMember" xlink:label="gsm_OtherReceivablesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_OtherReceivablesMember" xlink:to="gsm_OtherReceivablesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_OtherReceivablesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">This member stands for other receivables.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_OtherReceivablesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other Receivables [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_OtherReceivablesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other receivables</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsMember" xlink:label="us-gaap_CashAndCashEquivalentsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsMember" xlink:to="us-gaap_CashAndCashEquivalentsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashAndCashEquivalentsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash And Cash Equivalents [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CashAndCashEquivalentsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Cash and cash equivalents</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember" xlink:label="ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember" xlink:to="ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Financial Assets At Fair Value Through Other Comprehensive Income Category [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Fair value through other comprehensive income - designated</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_LoansAndReceivablesCategoryMember" xlink:label="ifrs-full_LoansAndReceivablesCategoryMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_LoansAndReceivablesCategoryMember" xlink:to="ifrs-full_LoansAndReceivablesCategoryMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_LoansAndReceivablesCategoryMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Loans And Receivables Category [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_LoansAndReceivablesCategoryMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Loans and receivables</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EquitySecuritiesMember" xlink:label="us-gaap_EquitySecuritiesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquitySecuritiesMember" xlink:to="us-gaap_EquitySecuritiesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EquitySecuritiesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Equity Securities [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EquitySecuritiesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Equity securities</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtSecuritiesMember" xlink:label="us-gaap_DebtSecuritiesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtSecuritiesMember" xlink:to="us-gaap_DebtSecuritiesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtSecuritiesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Debt Securities [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtSecuritiesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Debt investments</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_CurrencyAxis" xlink:label="srt_CurrencyAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_CurrencyAxis" xlink:to="srt_CurrencyAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_CurrencyAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Currency [Axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/currency/2017/currency-2017-01-31.xsd#currency_AllCurrenciesDomain" xlink:label="currency_AllCurrenciesDomain" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="currency_AllCurrenciesDomain" xlink:to="currency_AllCurrenciesDomain_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="currency_AllCurrenciesDomain_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">All Currencies [Domain]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="currency_AllCurrenciesDomain_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">All Currencies [Domain]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/currency/2017/currency-2017-01-31.xsd#currency_USD" xlink:label="currency_USD" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="currency_USD" xlink:to="currency_USD_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="currency_USD_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">U S [D]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="currency_USD_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">US Dollars</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/currency/2017/currency-2017-01-31.xsd#currency_EUR" xlink:label="currency_EUR" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="currency_EUR" xlink:to="currency_EUR_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="currency_EUR_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">E U [R]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="currency_EUR_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Euros</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_CurrencyOtherThanUsdMember" xlink:label="gsm_CurrencyOtherThanUsdMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_CurrencyOtherThanUsdMember" xlink:to="gsm_CurrencyOtherThanUsdMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_CurrencyOtherThanUsdMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other than US Dollars.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_CurrencyOtherThanUsdMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Currency Other Than Usd [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_CurrencyOtherThanUsdMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Other</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_EuroInterbankOfferedRateEuriborMember" xlink:label="gsm_EuroInterbankOfferedRateEuriborMember" xmlns="http://www.xbrl.org/2003/linkbase" />
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_EuroInterbankOfferedRateEuriborMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Interest rate at which a bank borrows funds from other banks in the Euro interbank market.</label>
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    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_FerroglobePlcEquityIncentivePlanMember" xlink:label="gsm_FerroglobePlcEquityIncentivePlanMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_FerroglobePlcEquityIncentivePlanMember" xlink:to="gsm_FerroglobePlcEquityIncentivePlanMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_FerroglobePlcEquityIncentivePlanMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents information pertaining to Ferroglobe PLC Equity Incentive Plan.</label>
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_FerroglobePlcEquityIncentivePlanMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Ferroglobe PLC Equity Incentive Plan [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_IntangibleAssetsAndGoodwillMember" xlink:label="ifrs-full_IntangibleAssetsAndGoodwillMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_IntangibleAssetsAndGoodwillMember" xlink:to="ifrs-full_IntangibleAssetsAndGoodwillMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_IntangibleAssetsAndGoodwillMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Intangible Assets And Goodwill [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_IntangibleAssetsAndGoodwillMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Intangible assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_BiologicalAssetsMember" xlink:label="ifrs-full_BiologicalAssetsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_BiologicalAssetsMember" xlink:to="ifrs-full_BiologicalAssetsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_BiologicalAssetsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Biological Assets [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_BiologicalAssetsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Biological assets</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoriesMember" xlink:label="us-gaap_InventoriesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoriesMember" xlink:to="us-gaap_InventoriesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InventoriesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Inventories [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InventoriesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Inventories</label>
    <loc xlink:type="locator" xlink:href="gsm-20181231.xsd#gsm_UnusedTaxLossesIncentivesAndCreditsMember" xlink:label="gsm_UnusedTaxLossesIncentivesAndCreditsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="gsm_UnusedTaxLossesIncentivesAndCreditsMember" xlink:to="gsm_UnusedTaxLossesIncentivesAndCreditsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="gsm_UnusedTaxLossesIncentivesAndCreditsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Represents the information pertaining to unused tax losses, incentives and credits.</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="gsm_UnusedTaxLossesIncentivesAndCreditsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Unused Tax Losses Incentives And Credits [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="gsm_UnusedTaxLossesIncentivesAndCreditsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Tax losses, incentives &amp; credits</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_PartnershipInterestMember" xlink:label="srt_PartnershipInterestMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_PartnershipInterestMember" xlink:to="srt_PartnershipInterestMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_PartnershipInterestMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Partnership Interest [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_PartnershipInterestMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Partnership Interest [Member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_UnusedTaxLossesMember" xlink:label="ifrs-full_UnusedTaxLossesMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_UnusedTaxLossesMember" xlink:to="ifrs-full_UnusedTaxLossesMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_UnusedTaxLossesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Unused Tax Losses [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_UnusedTaxLossesMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Unused tax losses</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_UnusedTaxCreditsMember" xlink:label="ifrs-full_UnusedTaxCreditsMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_UnusedTaxCreditsMember" xlink:to="ifrs-full_UnusedTaxCreditsMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_UnusedTaxCreditsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Unused Tax Credits [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_UnusedTaxCreditsMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Unused tax credits</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_TemporaryDifferenceMember" xlink:label="ifrs-full_TemporaryDifferenceMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_TemporaryDifferenceMember" xlink:to="ifrs-full_TemporaryDifferenceMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_TemporaryDifferenceMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Temporary Difference [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_TemporaryDifferenceMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Unrecognised deductible temporary differences</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis" xlink:label="ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis" xlink:to="ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleAxis_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Assets and liabilities classified as held for sale [axis]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember" xlink:label="ifrs-full_AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember" xlink:to="ifrs-full_AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Assets And Liabilities Not Classified As Held For Sale [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AssetsAndLiabilitiesNotClassifiedAsHeldForSaleMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Assets and liabilities not classified as held for sale [member]</label>
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2018-03-16/full_ifrs/full_ifrs-cor_2018-03-16.xsd#ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember" xlink:label="ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember" xmlns="http://www.xbrl.org/2003/linkbase" />
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember" xlink:to="ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember_lbl" xmlns="http://www.xbrl.org/2003/linkbase" />
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Assets And Liabilities Classified As Held For Sale [Member]</label>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ifrs-full_AssetsAndLiabilitiesClassifiedAsHeldForSaleMember_lbl" xml:lang="en-US" xmlns="http://www.xbrl.org/2003/linkbase">Held for sale</label>
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