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Shanghai Kangxin Chemical Co., Ltd.
Qingdao Twell Sansino Import & Export Co., Ltd.
Tianjin Haitong Chemical Industrial Co., Ltd.
Xiamen Huaxuan Gelatin Co., Ltd.
Shandong Tianjiao Biotech Co., Ltd.
Depont Molecular Co., Ltd.
Wuhan Dahua Weiye Pharmaceutical Chemical Co., Ltd.
Anhui Elite Industrial Co., Ltd.