Amcor plc
Bemis Company Inc. Berry Global Inc. Cascades Inc. Coveris Holding S.A. Emerald Packaging Inc. International Paper Company
Koch Industries Inc. (Georgia-Pacific Corp.)
Mondi plc
Packaging Corporation of America (PCA)
Printpack Inc. ProAmpac Intermediate Inc. Reynolds Group Holdings Limited (Pactiv Corporation)
Sealed Air Corporation
Smurfit Kappa Group
Sonoco Products Company
StePac Ltd. Westrock Company