Main products: zinc sulphate, manganese sulphate, ferrous sulphate and other trace elemants ( feed additive )Zncus Chemical Co., Ltd. is a FAMI-QS certified company located in Changsha China, specialized in producing and exporting high quality minerals and chemicals.We own two manufacturers for zinc sulphate and manganese sulphate, own reliable domestic suppliers for ferrous sulphate, copper sulphate, manganese carbonate, zinc oxide, manganese carbonate, as mineral nutritional additive for feed and fertilizer applications. We are also dedicated to source and supply other kinds chemical additive for food, pigment and water treatment, as ferrous oxide, sodium metabisulfite etc.