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QingDao KFeng Holdings Co., Ltd.
Oriental Biotech (Wuxi) Co., Ltd.
Qingdao Jingtai Huacheng International Trade Co., Ltd.
Qingdao Twell Sansino Import & Export Co., Ltd.
Tianjin Haitong Chemical Industrial Co., Ltd.
Wuhan Dahua Weiye Pharmaceutical Chemical Co., Ltd.
Zibo Qingxin Chemicals Co., Ltd.
Dalian Chem Imp.& Exp. Group Co., Ltd.
WEIFANG LONGHONG CHEMICAL CO., LTD.
Zibo Green Trade Co., Ltd.