1. Asahi Kasei Chemical Corporation
2. Bayer AG
3. Centroplast Engineering Plastics GmbH
4. CHIMEI Corporation
5. Covestro AG
6. E3 Panels
7. Entec Polymers LLC
8. Evonik Industries AG
9. Formosa Chemicals & Fibre Corporation
10. Gallina India
11. General Electric Company
12. Goodfellow Cambridge Ltd
13. Idemitsu Kosan CoLtd.
14. LG Chem Ltd.
15. Lone Star Chemical
16. Lotte Chemical Corporation
17. Mitsubishi Chemical Holdings Corporation
18. Palram Industries Ltd
19. RTP Company
20. R?hm GmbH
21. Samsung SDI Co. Ltd.
22. Samyang Corporation
23. Shivana Polymers LLP
24. Sumitomo Chemical Co. Ltd.
25. Teijin Ltd.
26. Thai Polyacetal Co.LTD.
27. Trinseo S.A
28. Vision Plastics Limited
29. Wise Line Metal Sales
30. Zeon Specialty Materials Inc.