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Zibo Qingxin Chemicals Co., Ltd.
Guangzhou New Zhonglian Building Material Co., Ltd.
Xuzhou First Chemical Co., Ltd.
Qingdao Hexin Machinery Co., Ltd.
Hongkong Baijin International Trading Co., Ltd.
Qingdao Tonyin Industrial Co., Ltd.
Qingzhou Zhongyuan Chemical Industry Co., Ltd.
Jinan ZZ International Trade Co., Ltd.
Sinochem Qingdao Co., Ltd.
Tianjin Tiger International Trade Co., Ltd.
Xiamen Ditai Chemicals Co., Ltd.
Xinle City Hongyuan Carbon Black Sales Center