S.A. SULQUISA is a leading Spanish private company, producing and marketing Natural Anhydrous Sodium Sulphate. S.A. SULQUISA was established in 1980, as a result of a Joint-Venture between the Spanish group, MINERSA and the Mexican group, INDUSTRIAS PE?OLES, world leader producer of Natural Sodium Sulphate. Located in Colmenar de Oreja (Madrid), S.A. SULQUISA has an annual production capacity of 300.000 Tones of a High Purity Anhydrous Sodium Sulphate with no other significant elements, like h...