1. Adani Group
2. Anco Products Incorporated
3. Arkema SA
4. Armacell International
5. Aspen Aerogels Inc.
6. Atlas Roofing Corporation
7. BASF SE
8. Big Sky Insulations Inc.
9. China National Building Material Group Co. Ltd.
10. Covestro AG
11. Dow Chemical Company
12. DuPont de Nemours Inc.
13. Eastman Chemical Co.
14. Evonik Industries AG
15. Fletcher Building Ltd.
16. GAF Materials LLC
17. Huntsman International LLC
18. Johns Manville Corporation
19. Kingspan Group PLC
20. Knauf Gips KG
21. Masco Corporation
22. ODE Insulation
23. Owens Corning
24. Recticel Insulation
25. ROCKWOOL Group
26. Saint-Gobain SA
27. Sika AG
28. Solvay S.A.