Amcor
Billerudkorsnas AB
Comar LLC
Elopak
Evergreen Packaging
International Paper
Klabin Paper
Liqui-Box Corporation
Mondi PLC
Nippon Paper Industries Co. Ltd.
Sidel
Smurfit Kappa
Tetra Pak International S.A.
The DOW Chemical Company
Weyerhaeuser Company?