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Our company was founded in 1987, and restructured into civil-owned enterprise in 1999. The company is located in Tongli town, famous for the world's cultural heritage--Tuisiyuan Garden. It is near to Suzhou in the north, Hangzhou in the south, Shanghai in the east and Taihu in the west, neighboring to Jiaxing-Hangzhou Expressway, and only 80km away from Shanghai, enjoying convenient transportation. Now, the company consists of more than 300 employees and covers an area of 70,000 square meters. It mainly produces dimethyl sulfate with the annual output of 10,000 tons, enjoying huge market share in Jiangsu, Zhejiang and Shanghai regions. The sulfanilamide series products are of complete specification, and our company is China's key production base for export. In 1998, our company invested over 5 million yuan to build wastewater comprehensive treatment station with an area of 6000 square meters, realize the clean production. At present, our two series of products are sold well in China and exported to America, Japan, Southeast Asia, West Europe and other countries and regions, highly appraised and trusted by domestic and overseas clients. Our company has passed ISO9001:2000 quality system certification and owns self-supporting import&export right. Our "Chengfeng" brand is the famous trademark in Jiangsu province. We sincerely hope to cooperate with all friends in a wide scopes such as developing new products, technology innovation and joint-venture cooperation, etc.