1. Ds Smith Plc.
2. Georgia Pacific Llc
3. Huhtamaki Oyj
4. International Paper Co.
5. Kapstone Paper and Packaging Corp.
6. Pratt Industries Inc.
7. Smurfit Kappa Group Plc.
8. Sonoco Products Co.
9. Stora Enso Oyj.
10. Westrock Co.