Amatek Scientific Co. Ltd.
Telephone0512-56316828 400-867-5858;400-867-5858
Websitehttp://www.amateksci.com
Aikon International Limited
Telephone025-58859352 19370895928
Websitehttp://www.aikonchem.com
DONBOO AMINO ACID COMPANY
Telephone 13063595538
Websitehttp://www.donboo.com/
Shanghai Haohong Scientific Co., Ltd.
Telephone400-8210725 4008210725
Websitehttps://www.leyan.com/
Shenzhen Ganyan Pharmaceutical Research and Development Technology Co., Ltd.
Telephone0755-28682735 13538090636
Websitehttps://www.bioisostere.com