China National Petroleum Corporation

China Petrochemical Corporation

China National Offshore Oil Corporation

Sinochem Co., Ltd

China Chemical engineering Co., Ltd

Wanhua Chemical Group Group Co., Ltd

Shenghong Group

Shandong Jingbo Holding Group Co., Ltd

Wison Group (China) Co., Ltd

BASF Integrated Base (Guangdong) Co., Ltd

Tianjin Bohua Yongli Chemical Co., Ltd

Xinjiang Zhongtai Chemical Group Co., Ltd

Qinghai Salt Lake Group Co., Ltd

Huaibei Mining Group Co., Ltd

Hubei Sanning Group Co., Ltd

Shandong Dongming Petrochemical Group Co., Ltd

Luxi Chemical Group Co., Ltd

Zhejiang Sanjiang Group

Binhua Group Co., Ltd

Tongling Chemical Industry Group Co., Ltd