1. Chevron Phillips Chemical Company LLC
2. Exxon Mobil Corporation
3. INEOS Oligomers
4. Janex S.A.
5. LG Chem Ltd.
6. Orochem Technologies Inc.
7. Qatar Chemical Company II Ltd. (Q-Chem II)
8. Royal Dutch Shell
9. SABIC
10. Saudi Arabian Oil Co.
11. Sea-Land Chemical Company
12. Skyrun Industrial Co. Ltd.
13. Symrise AG
14. The Idemitsu Kosan Company
Ltd.
15. Thermo Fisher Scientific Inc.