- International Paper Company Inc
- WestRock Company
- Smurfit Kappa Inc
- DS Smith Plc
- Graphic Packaging International Inc
- Mondi Group
- Georgia-Pacific LLC
- Cascades Inc
- Klabin S.A
- Oji Holding Corporation
- Nine Dragons Paper (Holding) Limited
- Packaging Corporation Of America
- Nippon Paper Industries Co. Ltd
- Orora Packaging Australia Pty Ltd
- Rengo Co Ltd