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Ningbo Dongbo New Energy Co.,Ltd
Anyang KongFang Metallurgical New Material Technology Co., Ltd
Xiamen Origin Biotech Co., Ltd
China Beihai Fiberglass Co., Ltd.
Tianjin Xinqian Precision Machinery Technology Co., Ltd
Shanghai Guanru Chemical Co., Ltd
Hailihua Chemical Technology Co., Ltd
Anhui Sinotech Industrial Co., Ltd
Wuhan Grand Hoyo Co.,Ltd
Tongnuo Group Co., Ltd
Jinsha Precipitated Silica Manufacturing Co., Ltd.
Shenzhen OK Biotech Technology Co., Ltd. (SZOB)