Shifang Changfeng Chemical Co., Ltd. is one of the leading enterprises specialized in researching, producing and supplying phosphoric flame-retardants and fine phosphates. With perfect production lines and leading professional Technology, we have been accredited with ISO9001:2000 quality system. We are building the global leader in the phosphoric chemical industry and expanding tens of products including ammonium polyphosphate, sodium phosphates, ammonium phosphates and potassium phosphates.