Zhangjiagang City Dongchang Chemical Co., Ltd. is situated in Dongsha Chemical Park, Leyu Town, Zhangjiagang City, Suzhou City, Jiangsu Province, China. With Yangtze River in the north, 150km from Shanghai, 100km from Suzhou, 25km from Zhangjiagang, 20km from Yanjiang Expressway, 15km from 204 State Road, it is easy of access. The company was established in Oct. 1995, and in 2000, it was transformed from the original Zhangjiagang Dongchang Chemical Factory to Zhangjiagang City Dongchang Chemical Co., Ltd. The company mainly engages in the production of phosphorus products. The water, electricity and gas facilities are supplied by Dongsha Park, sewage treatment plant, fire brigade has settled in the park, thus the safety production and environmental protection can be well ensured. The company occupies an area of 30000sqm with the building area of 7400sqm, and it owns 116 employees. Leading products of the company: 5-Chlorosalicylic acid, sodium acetate anhydrous, Phosphorus oxychloride, phosphorus trichloride, phosphorus pentoxide, niclosamide, Chloroacetaldehyde,Thiazol-2-ylammonium chloride.