DELAWARE, Ohio — Greif announced it has completed the previously announced sale of its containerboard business to Packaging Corporation of America. …“This transaction unlocks immediate value for our shareholders and allows Greif to deliver stronger and more consistent earnings power, enhances our capital efficiency, and accelerates debt reduction.” said Ole Rosgaard, President and CEO of Greif. As a result of this divestment, Greif is also adjusting its 2025 full-year guidance. …The revised guidance, which comprises only continuing operations for the full fiscal year 2025, is $507 million to $517 million of Adjusted EBITDA.