Rech Chemical Co. Ltd, established in 1991, is a research and deve-lopment, production, trade, after-sales service and investment in one integrated enterprise. Now Rech is a leading manufacturer of sulfate salts in China. The main products are zinc sulfate, ferrous sulfate, manganese sulfate and magnesium sulfate. Our annual production ca-pacity for ferrous sulfate is 30000 MT, for zinc sulfate, manganese sulfate and magnesium sulfate is 20000 MT separately. Our stable production and supply is the gua-rantee of on time delivery.