Exhibit 99.1 Greif Reports Fiscal Second Quarter 2024 Results DELAWARE, Ohio (June 5, 2024) – Greif, Inc. (NYSE: GEF, GEF.B), a global leader in industrial packaging products and services, today announced fiscal second quarter 2024 results. Fiscal Second Quarter 2024 Financial Highlights: (all results compared to the second quarter of 2023 unless otherwise noted) • Net income decreased 60.1% to $44.4 million or$0.77 per diluted Class A share compared to net income of $111.2 million or$1.90 per diluted Cla ...