1. Adam Pack S.A.
2. Atlas Packaging by Smurfit Kappa Group
3. Billerud AB
4. Coesia S.p.A.
5. Elopak AS
6. Greatview Aseptic Packaging Manufacturing GmbH
7. ITC Limited
8. Liquibox Corporation by Sealed Air Corporation
9. Mondi PLC
10. Nippon Paper Industries Co. Ltd.
11. Pactiv Evergreen Inc.
12. Refresco Group
13. Rengo Co. Ltd.
14. SIG Global Pte. Ltd
15. Stora Enso Oyj
16. Tetra Laval International SA
17. WestRock Company