- ALTIVIA Petrochemicals LLC
- China National BlueStar (Group) Co. Ltd
- Covestro AG
- DuPont
- Formosa Plastics Corporation
- Hexion
- Kumho P&B Chemicals Inc.
- LG Chem
- Mitsubishi Chemical Corporation
- Mitsui Chemicals Inc.
- SABIC
- SAMYANG HOLDINGS CORPORATION
- Shanghai Sinopec Mitsui Chemicals,Co.Ltd.