J & K SCIENTIFIC LTD.
Telephone010-82848833 400-666-7788
Websitehttp://www.jkchemical.com
Chemsky（shanghai）International Co.,Ltd.
Telephone021-50135380
Websitehttp://www.shchemsky.com
Shanghai Sheepchem Co., Ltd.
Telephone+86 (21) 6715-7650
Websitehttp://www.sheepchem.com
Zaozhuang Benefit Chemical Co., Ltd.
Telephone0531-69958783 15508681609
Websitehttp://www.benefit-chem.com
Bide Pharmatech Ltd.
Telephone400-164-7117 13681763483
Websitehttp://www.bidepharm.com
ChemStrong Scientific Co.,Ltd
Telephone0755-0755-66853366 13670046396
Websitehttp://www.chem-strong.com
Shanghai Taifu Pharmaceutical Technology Co. LTD
Telephone021-58111238 18930958102
Websitehttp://www.taifupharm.com/
Shanghai Xingui Biotechnology Co., Ltd.
Telephone 17501653715
Websitehttp://www.ansitan.com
Artis Biotech Co. Ltd.
Telephone0575-18780151478 18582380095
Websitehttp://www.artisbiotech.com/
Shanghai YuanYe Biotechnology Co., Ltd.
Telephone021-61312847; 18021002903
Websitehttp://www.shyuanye.com
Shanghai Changyan Chem & Tech Co., Ltd.
Telephone021-20242659 18930833303
Websitehttp://www.changyanchem.cn
Amadis Chemical Company Limited
Telephone571-89925085
Websitehttp://www.amadischem.com
9ding chemical ( Shanghai) Limited
Telephone021-021-52271985 17721149837
Websitehttp://www.9dingchem.com
Aikon International Limited
Telephone025-66113011 18112977050
Websitehttp://www.aikonchem.com
Shanghai Jizhi Biochemical Technology Co. Ltd.
Telephone4009004166/18616739031 18616739031
Websitehttp://www.acmec-e.com/
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 +86-13028896684;
Websitehttps://www.rrkchem.com
TOSUN PHARM
Telephone020-61855200 13326451905
Websitehttp://www.toref.cn/
Guangzhou Dreampharm Biotechnology Co., Ltd.
Telephone020-36607679 17825480238
Websitehttp://www.dmstandards.com/
