J & K SCIENTIFIC LTD.
Telephone18210857532 18210857532
Websitehttps://www.jkchemical.com
Guangzhou Isun Pharmaceutical Co., Ltd
Telephone020-39119399 18927568969
Websitehttp://www.isunpharm.com
Shenzhen Polymeri Biochemical Technology Co., Ltd.
Telephone+86-400-002-6226 13028896684;
Websitehttps://www.rrkchem.com
Jiangsu Hongmin Pharmaceutical Co., Ltd.
Telephone18221292452
Websitehttps://www.chemicalbook.com/ShowSupplierProductsList34013/0_EN.htm
DONBOO AMINO ACID COMPANY
Telephone 13063595538
Websitehttp://www.donboo.com/