Weifang Sunwin Chemicals Co., Ltd.  (Headquarters & Domestic Sales and Marketing)
Address: 36 New Hi-Tech Road Two，Biopharmaceutical Incubator Suite 210， New Hi-Tech Zone, Weifang City, Shandong, 261061, P.R. China 
Tel: +86-536-8869166
Fax: +86-536-8869188
Email: marketing@sunwincn.com

Shanghai Sunwin Chemicals Co., Ltd.  ( International Sales and Marketing)
Address: No. 1, Jilong Road, Room 922, Thomson International Trade, Wai Gao Qiao Free Trade Zone, Shanghai
Zip Code: 200131
Tel: +86-21-50463411,50463412,50463413
Fax: +86-21-50463416
E-mail: sales@sunwincn.com