1. BillerudKorsn?s AB
2. Br?drene Hartmann A/S
3. Cascades Inc.
4. DS Smith PLC
5. Esco Products Inc.
6. Georgia-Pacific Corporation
7. Holmen AB
8. Hood Packaging Corporation
9. Huhtam?ki Oyj
10. International Paper Company
11. KOCH Pac-Systeme GmbH
12. Mayr-Melnhof Karton AG
13. Mondi Group PLC
14. Napco National Paper Products Company
15. Nippon Paper Industries Ltd.
16. OJI Holding Corporation
17. Packaging Corporation of America
18. Pactiv LLC
19. Pratt Industries Inc.
20. Rengo Co. Ltd.
21. Reynolds Group Limited
22. Smurfit Kappa Group PLC
23. Sonoco Products Company
24. Stora Enso Oyj
25. WestRock Company