Henan Qingshuiyuan Technology Co., Ltd (Jiyuan Qingyuan Water Treatment Co.,Ltd.) is one of the leading manufacturers and suppliers of phosphonates in China. The main products are ATMP, HEDP, powder HEDP, DTPMP, PBTCA, HPMA, BHMTPMPA etc., and these products are widely used in the fields of industrial water treatment, oil field as well as textiles. We also own a subsidiary-plant that specifying producing the main raw material--phosphorus trichloride. Quality Management System of us is in conformity with and certified by ISO9001:2000.We would like to be your stable supplier and hope to build up a long term relationship with you.