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Qingdao Jingtai Huacheng International Trade Co., Ltd.
Oriental Biotech (Wuxi) Co., Ltd.
Anqing Zhongchuang ENG. Co., Ltd.
Wuhan Dahua Weiye Pharmaceutical Chemical Co., Ltd.
WEIFANG LONGHONG CHEMICAL CO., LTD.
Shanghai Sunwise Chemical Co., Ltd.
Qingdao Twell Sansino Import & Export Co., Ltd.
Tianjin YR Chemspec Technology Co., Ltd.
Hefei TNJ Chemical Industry Co., Ltd.
Anhui Elite Industrial Co., Ltd.
Dalian Chem Imp.& Exp. Group Co., Ltd.
Hugestone Enterprise Co., Ltd.
Zhengzhou United Asia Trading Co., Ltd.