... .2sq km exploitable underground salt area exploitble storage of 200000000 tons Salt, Refined salt, PDV salt ISO 9001-2008 Salt, Refined salt, PDV salt6.2 sq ... km exploitable underground salt areaExploitble storage of ... Mg+,(%)<=0.250.40(SO4)2-,(%)<=0.300.50 PDV Salt,rock salt,industrial grade,Nacl,99.1%min