1. Amcor plc
2. DS Smith PLC
3. Essity AB
4. Graphic Packaging International Inc.
5. International Paper Company
6. Kimberly Clark Corporation
7. Klabin S.A.
8. Koch Industries Inc.
9. Lee & Man Paper Manufacturing Limited
10. Mondi PLC
11. Nine Dragons Paper (Holdings) Limited
12. Nippon Paper Industries Co. Ltd.
13. Oji Holdings Corporation
14. Packaging Corporation of America
15. Procter & Gamble Company
16. Rengo Co. Ltd.
17. Reynolds Group Ltd
18. Sappi Limited
19. Stora Enso Oyj
20. Svenska Cellulosa Aktiebolaget
21. Unicharm Corporation
22. UPM-Kymmene Corporation
23. WestRock Company