1. ARDEX Australia Pty Ltd.
2. Arkema S.A.
3. Avient Corporation
4. BASF SE
5. Benvic Group
6. Borealis AG
7. Braskem S.A.
8. Carlisle Companies Incorporated
9. China Gwell Machinery Co. Ltd.
10. Detroit Polymers LLC
11. DuPont de Nemours Inc.
12. Eastman Chemical Company
13. Exxon Mobil Corporation
14. Flexishine Polyblends LLP
15. Genflex by Firestone Building Products Company
LLC.
16. GuangDong Advanced Thermoplastic Polymer Technology Co. Ltd.
17. HEXPOL AB
18. INEOS AG
19. Johns Manville by Berkshire Hathaway Inc.
20. KRAIBURG TPE
21. LG Chem
Ltd.
22. Lotte Chemical Corporation
23. LyondellBasell Industries N.V.
24. Mitsubishi Chemical Corporation
25. Mitsui Chemicals Inc.
26. Nagase America LLC
27. NSB Polymers GmbH
28. Oriental Yuhong Waterproof Technology Co. Ltd.
29. Reiloy Westland Corporation
30. Repsol
S.A.
31. RTP Company
32. SABIC
33. Sika AG
34. Solvay S.A.
35. Soprema Group
36. Sumitomo Chemical Co. Ltd.
37. The Dow Chemical Company
38. Tosoh Corporation
39. Tremco Incorporated
40. WASHINGTON PENN by AUDIA GROUP
41. WEIFANG KEDE BUILDING WATERPROOF MATERIAL CO. LTD.