- Asahi Kasei Advance Corporation
- Ascend Performance Materials
- Chemelot
- China Petrochemical Development Corporation
- China Petroleum & Chemical Corporation
- Cornerstone Chemical Company
- INEOS
- LUKOIL
- Mitsubishi Chemical Corporation
- Petkim Petrokimya Holding A?
- Polymir
- Reliance Industries Limited
- Sumitomo Chemical Co. Ltd
- Taekwang Industrial Co. Ltd