FerroChem Co. Ltd.(Old name :Hong Qing Chemicals Co., Ltd.) can supply the best quality copper sulfate , ferrous sulfate series products, the main products include copper sulfate for feed industry, copper sulfate used in electroplating solution for semiconductor, printed circuit board and other industries , agricultural-used copper sulfate , ferrous sulfate used as a fertilizer, a feed additive, water treatment and cement additive to reduce chromium(VI) etc. The annual output of copper sulfate is 15000mt/year, ferrous sulfate 50000mt/year, half of them are exported to North American, Europe, Australia, Japan, Korea, and South East Asia and have been enjoying great reputation in home and abroad for the last decade.