Hangzhou Tonghe Chemical Co., Ltd. focuses on the production and operation of phosphate products, has a production base and a complete product line in Yunnan-Guizhou region, where high-grade phosphate and non-ferrous metal ores are enriched, especially in the aspects of potassium phosphate and small varieties of metal salts. The product quality is comparable to Europe and the United States, and fully meets or exceeds the national standard, RoHS and FCC standards. And in the EU REACH pre-registration.