Located in the world largest sulfate production area, Hunan Province, China, our company is now in possession of three sulfate production bases after 20 years of development. We have an annual production capacity of 20,000 tons zinc sulfate powder and particles, 20,000 tons manganese sulfate powder and particles, as well as 30,000 tons monohydrate ferrous sulfates. Over the past 20 years, we have specialized in manufacturing above mentioned s