Chemsky（shanghai）International Co.,Ltd.
Telephone021-50135380
Websitehttp://www.shchemsky.com
Guangzhou Isun Pharmaceutical Co., Ltd
Telephone020-39119399 18927568969
Websitehttp://www.isunpharm.com
Shanghai TaoSu Biochemical Technology Co., Ltd.
Telephone021-33632979
Websitehttp://www.tsbiochem.com
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 +86-13028896684;
Websitehttps://www.rrkchem.com
Energy Chemical
Telephone021-58432009 400-005-6266
Websitehttp://www.energy-chemical.com
Hubei Danding Pharmaceutical Technology Co., Ltd
Telephone17701422016 17701422016
Websitehttp://www.hbdandingyy.com
Merck KGaA
Telephone21-20338288
Websitehttp://www.sigmaaldrich.cn
DAYANG CHEM (HANGZHOU) CO.,LTD
Telephone +8617705817739
Websitewww.dycnchem.com
