Apart from Sonoco, some other prominent players in the Containers – Paper and Packaging industry like Sealed Air Corporation SEE, Greif, Inc. (GEF) and Packaging Corporation of America PKG are also witnessing an unprecedented surge in material costs. PKG continues to face unprecedented inflation in most of its operating and converting costs, including higher freight and logistics expenses due to rail service challenges and rail fuel surcharges. Packaging Corporation of America (PKG): Free Stock Analysis Report