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Qingdao Hexin Machinery Co., Ltd.
Qingdao Twell Sansino Import & Export Co., Ltd.
Hongkong Baijin International Trading Co., Ltd.
Sinochem Qingdao Co., Ltd.
Jinan ZZ International Trade Co., Ltd.
Qingzhou Zhongyuan Chemical Industry Co., Ltd.
Tianjin Tiger International Trade Co., Ltd.
Zibo Qingxin Chemicals Co., Ltd.
Guangzhou New Zhonglian Building Material Co., Ltd.
Xiamen Ditai Chemicals Co., Ltd.
Jinhua Gafle Auto Maintenance Supplies Plant
Xuzhou First Chemical Co., Ltd.
Xinle City Hongyuan Carbon Black Sales Center