Zhejiang Zengxin Chemistry Co., Ltd. (established in 1994) concentrates on producing phosphorus and its derivatives, such as Sodium Hypophosphite and tetrakis[hydroxymethyl] phosphonium sulfate. With advanced equipment and strong R&D capacities, we have been a Hi-tech enterprise and have passed ISO9001 and ISO14001 certificates. The Sodium Hypophosphite passed the certification of SGS and has the PRE-REGISTRATION CERTIFICATE of REACH. Zengxin takes the leading position in Chinese phosphorous chemical industry.



Our products are widely applied in water treatment, environment...