Henan Golden Magpie Chemical Technology Research Institute Co., Ltd. is committed to the researching, development and production of a series of products to replace sodium cyanide. At present, our products include gold ore leaching agent, electronic waste gold and silver extraction agent, electroplating precious metal additives and etc. They have replaced sodium cyanide in gold mines, electronic waste recycling, and electroplating industries. Our institute actively responds to the national environmental protection policy and aims to replace sodium cyanide in an all-round way. After 30 years of development and precipitation, we have a production line with an annual output of 50000 tons, stable product quality and fast delivery speed.