1. 3M Company
2. A.M.Flexipack Pvt Ltd.
3. Amcor PLC
4. Berry Global Group Inc.
5. Cascades Inc.
6. CCL Industries Inc.
7. Cellofoam North America Inc.
8. Coveris Management GmbH
9. Dhwani Polyprints Pvt. Ltd.
10. Dow Chemical Company
11. DS Smith PLC
12. Georgia-Pacific LLC by Koch Industries Inc.
13. Graham Packaging Company
L.P.
14. Grantur International Package Products (Shenzhen) Co. Ltd.
15. Guangdong Tengen Printing Co. Ltd.
16. H.B. Fuller Company
17. Hughes Enterprises by Envoy Solutions Company
18. Impak Retail
19. International Paper Company
20. Klabin S.A
21. Mondi Group
22. Nippon Paper Industries Co. Ltd.
23. Orora Limited
24. Packaging Corporation of America
25. Packhelp S.A.
26. Packman Packaging Private Limited
27. Plus Packaging Inc.
28. Pregis LLC
29. Printpack Inc.
30. ProAmpac Holdings Inc.
31. Rengo Co. Ltd.
32. Salazar Packaging
33. Sealed Air Corporation
34. Shorr Packaging Corporation
35. Signet by Winson Group Pty Ltd.
36. Smurfit Kappa Group
37. Sonoco Products Company
38. Storopack Hans Reichenecker GmbH
39. The BoxMaker Inc.
40. Transcontinental Inc.
41. WestRock Company
42. WH Packaging Co.Ltd.
43. Winpak Ltd.