1. 3M Company
2. Apple Rubber Products Inc.
3. Covestro AG
4. Daikin Industries Ltd.
5. DANCO INDUSTRY LTD.
6. Dow Chemical Company
7. DuPont de Nemours Inc.
8. Eagle Elastomer Inc.
9. Eastman Chemical Company
10. Evonik Industries AG
11. Exxon Mobil Corporation
12. Goodflex Rubber Co. Limited
13. KCC CORPORATION
14. KURARAY CO. LTD.
15. Miller-Stephenson Inc.
16. Momentive Performance Materials Inc
17. Precision Polymer Engineering Limited
18. RTP Company
19. Shin-Etsu Chemical Co. Ltd.
20. Solvay S.A.
21. The Chemours Company
22. Trelleborg Group
23. Wabtec Corporation
24. Wacker Chemie AG
25. Zhejiang Hunet Chem Co. Ltd