Avangard-N, Baku, Azerbaijan

Xinfa Group, Chiping, China

Siniat, Turceni, Romania

Sifucel-Silicas, Rio Maior, Portugal

Elephant Gypsum PT.Siam Indo Gypsum Industry, Cibitung, Indonesia

Aislantes Volcan S.A., Quitalmahue, Chile

Sarl Taouab, Bousaada, Algeria