1. Borealis AG by OMV Group
2. Braskem
3. Brentwood Plastics Inc.
4. CHEMIEURO
S.L.
5. Chevron Phillips Chemical Company LLC
6. China Petrochemical Corporation (China)
7. DL Chemical Co. Ltd.
8. ECHEMI Digital Technology Co. Ltd.
9. ExxonMobil Corporation
10. Formosa Plastics Corporation
11. INEOS Limited
12. LG Chem Ltd.
13. LyondellBasell Industries N.V.
14. Mitsui Chemicals Inc.
15. National Petroleum Limited
16. NOVA Chemicals Corporation
17. Reliance Industries Ltd.
18. Repsol SA
19. Sasol Limited
20. Saudi Basic Industries Corporation by Aramco Chemicals Company
21. Sinochem Corporation
22. TotalEnergies SE
23. Univation Technologies
LLC
24. W. R. Grace & Co.-Conn by Standard Industries
25. Westlake Corporation