Dayang Chem (Hangzhou) Co., Ltd.
Springautumn Biological Engineering Co., Ltd.
Shijiazhuang Dowell Chemical Co.,Ltd.
Jiangsu Haixiang Chemical Industry Co. Ltd
Jinlan Pharm-Drugs Technology Co., Limited
Shanghai hanhong Chemical CO.,Ltd
Shenfang Jubang Zhiwu Yuanliao Co., Ltd
Shaanxi Huike Botanical Development Co.,Ltd
Otwo Biotech (Guangzhou) Inc.
Changzhou Institute of Materia Medica