... sq km exploitable underground salt area, storage of 200,000,000 tonsAnnual output of 800,000tons refined saltISO 9001-2008.2. ... Packaging Specification: 25Kg, 50Kg, 750Kg and 1Mt.3. Index of industrial productionPurified Industrial (usage) Salt Index ItemSuper GradeA GradeNaCl(%)99.1%min98.5 ... /1000kg.Stored in a cool, ventilated, dry place. PDV salt,industrial salt, sodium chloride,99.1min