Humate（Tianjin）international limted   Sphinx Scientific Laboratory (Tianjin) Co., Ltd   WeiQiu(Tianjin)Valve Co,.Ltd.   YSHC(TIANJIN)CHEMICAL COMPANY LIMITED   Concord Technology(Tianjin)Co.,ltd   COSL Trade(Tianjin),Ltd.   Dream True (Tianjin) Mineral Resources Sales Limited   Concord Technology (Tianjin) Co., Ltd   Ohyes(Tianjin)Metal Materials Marketing Co., Ltd   Chinatech (Tianjin) Chemical Co., Ltd.   ZhongDe (TianJin)chemical products trade Co.,Ltd.   ZhongDe (TianJin)chemical products trade Co.,Ltd.   ZhongDe (TianJin)chemical products trade Co.,Ltd.   YALIZHOU（TIANJIN）CHEMICALS CO.,LTD.   Tongdeweiye(tianjin) chemicals Co., Ltd   JinYuanDa (TianJin) Chemical Imp.&Exp.Co.,Ltd   JOY (TIANJIN) TECHNOLOGY AND DEVELOPMENT CO., LTD.   huishengtongda(tianjin)INTERNATIONAL TRADING CO., LTD   CHEMAY INT'L TRADING   Concord Technology (Tianjin) Co., Ltd