1. Boise Cascade Company
2. Canfor Corporation
3. CenturyPly
4. Compagnie de Saint-Gobain S.A.
5. CSR Limited
6. DIEFFENBACHER GMBH Maschinen- und Anlagenbau
7. Etex Group
8. Fletcher Building Limited
9. Georgia-Pacific LLC
10. Greenply Industries Limited
11. Holmen Group
12. James Hardie Building Products Inc.
13. JELD-WEN Inc.
14. Kingspan Group
15. Knauf Digital GmbH
16. Louisiana-Pacific Corporation
17. NIPPON STEEL CORPORATION
18. Norbord
19. Owens Corning
20. PotlatchDeltic Corporation
21. Segezha Group
22. Sveza Group
23. UPM-Kymmene Corporation
24. West Fraser Timber Co. Ltd.