History of Laudun

Laudun plant was built in 1958 by the Keller and Leleux Company. Through time it has manufactured different types of ferroalloys and silicon alloys. Currently it is specialized in the production of high purity Ferrosilicon and Silicon Metal, through carbothermal reduction of quartz.

Plant facilities

  • Three furnaces (16, 25 and 35 MW) equipped with Söderberg electrodes for the Ferrosilicon and compounds for the Silicon, and independent treatment filters
  • One crushing-screening line for Ferrosilicon
  • One crushing-screening line for metallurgical Silicon
  • One crushing-screening-powdering-sifting line for chemical Silicon
  • Two installations for densifying Microsilica


The plant is situated in the municipality of Laudun-L'Ardoise, in the province of Gard, 100 km from Montpellier, 120 km from Marseilles and 200 km from Lyon.

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