Shanghai Kaiwei Chemical Technology Co., Ltd.
Telephone021-58461859 15821823057
Websitehttp://www.aivichem.com
Shanghai Haohong Pharmaceutical Co., Ltd.
Telephone400-8210725 4008210725
Websitehttps://www.leyan.com/
Zibo Biopolar Rongchuang Pharmaceutical Co. Ltd.
Telephone0533-6092686 13371592196
Websitehttp://www.bp-rongchuang.com/
https://hanhongsci.com/
Telephone021-54306202 18917919676
Websitehttps://www.hanhongsci.com/
Jilin Chinese Academy of Sciences-yanshen Technology
Telephone 18143011203
Websitehttp://www.chemextension.com/