Guizhou Chanhen Chemical Corporation(hereinafter referred as Chanhen Corporation for short) is a private enterprise, specialized in mining phosphate rock and intensive processing of phosphoric resources, with headquarter located in Chengdu City of Sichuan Province and its huge phos-rock resources located in Wengan County of Guizhou Province. Guizhou Chanhen Chemical Corporation is National High-tech Enterprises. Chanhen Corporation is committed to researching and developing in phosphates industry, and endeavors to expand its industry chain. Through developments of more than ten years, there has been over ten products covering the fields of feed grade, fertilizer grade, and industrial grade phosphates. "CHANPHOS" brand feed grade phosphates are the basic products, its annual production capacity including MCP and MDCP is 400,000 tons. All production processes accord with the requirements of ISO9001:2008,GMP+ and FAMI-QS. Thereinto, The scale and brand of the feed grade MCP is the first in Asia and World Famous, this product has been the first choice for the enterprises which produce aquatic feeds, and exported to many countries over the world.