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Wuhan Dahua Weiye Pharmaceutical Chemical Co., Ltd.
Dalian Chem Imp.& Exp. Group Co., Ltd.
Qingdao Jingtai Huacheng International Trade Co., Ltd.
Shandong Tianjiao Biotech Co., Ltd.
Anqing Zhongchuang ENG. Co., Ltd.
Tianjin Haitong Chemical Industrial Co., Ltd.
Shaanxi Yi An Biological Technology Co., Ltd.
Lianyungang Chemivit International Co., Ltd.
Zibo Qingxin Chemicals Co., Ltd.
QingDao KFeng Holdings Co., Ltd.
Xiamen Ditai Chemicals Co., Ltd.
Anhui Elite Industrial Co., Ltd.
Qingdao Fraken International Trading Co., Ltd.
Oriental Biotech (Wuxi) Co., Ltd.
Qingdao Twell Sansino Import & Export Co., Ltd.