Shanghai Tauto Biotech Co., Ltd.
Telephone021-51320588
Websitehttp://www.tautobiotech.com/
Sichuan Wei Keqi Biological Technology Co., Ltd.
Telephone028-81700200 18116577057
Websitehttps://www.weikeqi-biotech.com/
Shanghai YuanYe Biotechnology Co., Ltd.
Telephone021-61312847; 18021002903
Websitehttp://www.shyuanye.com
Shaanxi DIDU pharmaceutical and Chemical Co., Ltd
Telephone029-81120477 17792793610
Websitehttp://www.dideu.cn
LGC Science (Shanghai) Ltd.
Telephone 17717235263
Websitehttps://www.lgcstandards.com/CN/en/Pharmaceutical/cat/279492