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Xuzhou First Chemical Co., Ltd.
Hangzhou Emperor Chemical Co., Ltd.
Hubei Color Root Technology Co., Ltd.
Kolortek Co., Ltd.
YANTAI ZHOUJI BIOTECHNOLOGY CO., LTD.
Tianjin United Star International Trading Co., Ltd.
Hangzhou Dimacolor Imp. & Exp. Co., Ltd.
Xinle City Hongyuan Carbon Black Sales Center