DELAWARE, Ohio, Sept. 02, 2025 (GLOBE NEWSWIRE) -- Greif, Inc. (NYSE: GEF, GEF.B), a global leader in performance packaging and services, announced today it has completed the previously announced sale of its containerboard business to Packaging Corporation of America. “The closing of this sale marks an important step forward for Greif. This transaction unlocks immediate value for our shareholders and allows Greif to deliver stronger and more consistent earnings power, enhances our capital efficiency, and ac ...