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 TaoSu Biochemical Technology Co., Ltd.
Telephone021-33632979
Websitehttp://www.tsbiochem.com
Beijing Solarbio Science & Tecnology Co., Ltd.
Telephone010-50973130 4009686088
Websitehttp://www.solarbio.com
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 13028896684
Websitehttps://www.rrkchem.com
Hebei Yanxi Chemical Co., Ltd.
Telephone +8617531190177
Websitehttps://www.chemicalbook.com/manufacturer/hebei-yanxi-chemical-283/
Energy Chemical
Telephone021-58432009 400-005-6266
Websitehttp://www.energy-chemical.com
Jilin Chinese Academy of Sciences-yanshen Technology
Telephone 18143011203
Websitehttp://www.chemextension.com/
BINBO BIOLOGICAL CO.,LTD
Telephone +8618629063126
Websitebinbobio.com
Hebei Kingfiner Technology Development Co.Ltd
Telephone+86-15532196582 +86-15373005021
Websitehttps://www.kingfinertech.com
Shaanxi LonierHerb Bio Technology Co Ltd
Telephone+86-86-+86-86-029-87551862 +8617702909819
Websitewww.ingredients-lonier.com
China National Standard Pharmaceutical Corporation Limited
Telephone +8615391658522
Websitehttps://www.standardpharm.org.cn/
Hebei Guanlang Biotechnology Co., Ltd.
Telephone+86-19930503259 +86-19930503259
Websitehttps://www.chemicalbook.com/manufacturer/hebei-guanlang-biotechnology/