Weifang Honest Imp & Exp Co., Ltd. is an import & export oriented company, founded on the base of our factory. We have stable sales network in China. Our main products: Mining Chemicals: Xanthate, Dithiophosphate, Sodium hydrosulphide, thiourea, zinc sulfate etc. Our factory has advanced technology. All products are under perfect quality control and we always try to improve the management system. Now the annual production capacity can reach 20000 tons. Our company has grown to be the ...