GEF Q1 2026 Earnings Presentation

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R51 G63 B72 #333F48 R0 G40 B85 #002855 R116 G255 B11 #74FF6F R201 G244 B255 #C9F4FF Primary Colors: Secondary Colors: R52 G119 B98 #337761 R255 G199 B44 #FFC72C R0 G113 B206 #0070CD R234 G118 B34 #F07623 January 28, 2026 2 January 28, 2026 2 Safe Harbor and Presentation Note This presentation contains certain forward-looking information within the meaning of the Private Securities Litigation Reform Act of 1995. The words “may,” “will,” “expect,” “intend,” “estimate,” “anticipate,” “aspiration,” “objective,” “project,” “believe,” “continue,” “on track” or “target” or the negative thereof and similar expressions, among others, identify forward-looking statements. All forward looking statements are based on information currently available to management. Such forward-looking statements are subject to certain risks and uncertainties that could cause events and the Company’s actual results to differ materially from those expressed or implied. Please see the disclosure regarding forward-looking statements immediately preceding Part I of the Company’s Annual Report on the most recently filed Form 10-K. The company assumes no obligation to update any forward-looking statements. This presentation includes certain non-GAAP financial measures like Adjusted EBITDA and other measures that exclude special items such as restructuring and other unusual charges and gains that are volatile from period to period. Management of the Company uses the non-GAAP measures to evaluate ongoing operations and believes that these non-GAAP measures are useful to enable investors to perform meaningful comparisons of current and historical performance of the Company. These non-GAAP financial measures are intended to supplement, and should be read together with, our financial results. They should not be considered an alternative or substitute for, and should not be considered superior to, our reported financial results. Tables showing the reconciliation between GAAP and non-GAAP measures are available at the end of this presentation and on the Greif website at www.greif.com Due to last year’s fiscal year-end change, to provide the most accurate view of year-over-year trends, all financial measures within this presentation reflect fiscal Q1 2026 (October, November, and December 2025) versus a recasted prior year on the same monthly basis (October, November, and December 2024) FORWARD-LOOKING STATEMENTS REGULATION G FISCAL YEAR-END CHANGE

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R51 G63 B72 #333F48 R0 G40 B85 #002855 R116 G255 B11 #74FF6F R201 G244 B255 #C9F4FF Primary Colors: Secondary Colors: R52 G119 B98 #337761 R255 G199 B44 #FFC72C R0 G113 B206 #0070CD R234 G118 B34 #F07623 January 28, 2026 3January 28, 2026 3 Entering 2026 from a Position of Strength January 28, 2026 3 Executing Build to Last Strategy Delivering Solid Financial Results While Executing On Our Strategy $65M Run-Rate Cost Optimization Achieved $130M Q1-26 Share Repurchases +260bps Q1-26 YoY Adj. EBITDA Margin +24% Q1-26 YoY Adj. EBITDA 1.2x Q1-26 Leverage Ratio Reaffirm FY26 Guidance

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R51 G63 B72 #333F48 R0 G40 B85 #002855 R116 G255 B11 #74FF6F R201 G244 B255 #C9F4FF Primary Colors: Secondary Colors: R52 G119 B98 #337761 R255 G199 B44 #FFC72C R0 G113 B206 #0070CD R234 G118 B34 #F07623 January 28, 2026 4January 28, 2026 4 First Quarter 2026 Year-over-Year Volume Trends Customized Polymer Solutions ▪ IBC up low-singles, with small containers down low-singles and large containers down mid-singles from industrial end market softness ▪ Small containers demand expected to sequentially improve in Q2 as Ag seasonality abates Continuation of FY25 Exit-Rate Demand Patterns Durable Metal Solutions ▪ Softness across regions driven by industrial demand Sustainable Fiber Solutions ▪ Mills operated at industry levels despite ~14k tons of downtime ▪ Volumes down mid-singles in converting driven by industrial demand softness Innovative Closure Solutions ▪ 3rd party volumes down high-singles (total volumes down mid-singles) from both metal and polymer closure demand, driven by industrial softness Trends in Key Growth End Markets x% x% x% NA LATAM EMEA APAC ▪ Softness across regions and products from industrial economy impacted broader end markets; target end markets continue to demonstrate relative resilience Agrochemicals Food & Beverage Pharma & Medical Flavors & Fragrances Softness Softness Softness (0.9%) (5.2%) (7.4%) (9.8%) Softness

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R51 G63 B72 #333F48 R0 G40 B85 #002855 R116 G255 B11 #74FF6F R201 G244 B255 #C9F4FF Primary Colors: Secondary Colors: R52 G119 B98 #337761 R255 G199 B44 #FFC72C R0 G113 B206 #0070CD R234 G118 B34 #F07623 January 28, 2026 5January 28, 2026 5 Total Company Financial Performance First Quarter 2026 ($ in Millions except per share) Q1 25 Q1 26 Adjusted EBITDA 98.8 122.5 Adjusted EBITDA % 9.7% 12.3% Adjusted Class A Earnings Per Share 0.20 0.48 Adjusted Free Cash Flow (23.3) (41.0) • Adjusted EBITDA increased 24% and EBITDA margin improved 260 basis points due to improved price/cost and significant structural cost optimization gains • Adjusted Free Cash Flow decreased primarily due to lack of contribution from recent divestments; offsetting higher EBITDA, lower interest and improved working capital • Adjusted Earnings Per Share increased 140% due to higher EBITDA and lower year-over- year interest expense from significant debt reduction in 2025, partially offset by higher taxes January 28, 2026 5

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R51 G63 B72 #333F48 R0 G40 B85 #002855 R116 G255 B11 #74FF6F R201 G244 B255 #C9F4FF Primary Colors: Secondary Colors: R52 G119 B98 #337761 R255 G199 B44 #FFC72C R0 G113 B206 #0070CD R234 G118 B34 #F07623 January 28, 2026 6January 28, 2026 6 ($ in Millions) Customized Polymers Durable Metals Sustainable Fiber Innovative Closures Q1 25 Q1 26 Q1 25 Q1 26 Q1 25 Q1 26 Q1 25 Q1 26 Sales 1 294.4 305.1 355.9 354.8 344.0 311.9 39.9 39.4 Gross Profit 58.6 57.8 69.0 70.7 64.3 65.2 7.5 8.9 Gross Profit % 19.9% 18.9% 19.4% 19.9% 18.7% 20.9% 18.8% 22.6% Segment Financial Performance First Quarter 2026 • Polymers: Gross profit slightly down on approximately flat volumes due primarily to product mix despite cost optimization gains • Metals: Gross profit slightly up due primarily to cost optimization gains • Fiber: Sales lower due to demand softness offsetting positive pricing; margin stronger on better price/cost and variable cost discipline • Closures: Gross Profit up due to price/mix and cost optimization 1. Innovative Closure Solutions reflects total sales, which includes intersegment sales; other segments reflect net sales to third parties

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R51 G63 B72 #333F48 R0 G40 B85 #002855 R116 G255 B11 #74FF6F R201 G244 B255 #C9F4FF Primary Colors: Secondary Colors: R52 G119 B98 #337761 R255 G199 B44 #FFC72C R0 G113 B206 #0070CD R234 G118 B34 #F07623 January 28, 2026 7 Reaffirming Low-End 2026 Guidance 2026 Guidance $630M Adjusted EBITDA $315M Adjusted Free Cash Flow Volume Assumptions Customized Polymer Solutions Up LSD Durable Metal Solutions Flat to Down LSD Sustainable Fiber Solutions Flat to Down LSD Innovative Closure Solutions Up LSD Free Cash Fow Guidance Bridge DD&A $225 Adj. capital expenditures $155 Cash interest expense $40 Cash tax expense $120 Cash restructuring and pension $50 Operating working capital source $50 ($ in Millions) Guidance Assumptions

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R51 G63 B72 #333F48 R0 G40 B85 #002855 R116 G255 B11 #74FF6F R201 G244 B255 #C9F4FF Primary Colors: Secondary Colors: R52 G119 B98 #337761 R255 G199 B44 #FFC72C R0 G113 B206 #0070CD R234 G118 B34 #F07623 January 28, 2026 8 Priorities for Disciplined Capital Deployment Executing on Share Repurchases Deploying Greif’s Strong and Durable Cash Flow to Optimize Shareholder Value Invest for Growth ▪ Fund high-return organic growth initiatives ▪ Pursue disciplined bolt-on acquisitions Return Cash to Shareholders ▪ Deliver consistent growing dividends ▪ Repurchase shares opportunistically Maintain a Strong Foundation ▪ Manage leverage and liquidity ▪ Fund safety and maintenance CapEx Capital Allocation $130M 1. Open repurchase plan for approximately 2.5m shares, which is approximately equal to $150M based upon the share price at commencement of the plan Completed under $150M share repurchase plan 1 announced in Q4’25 $300M Additional share repurchase capacity authorized by Greif’s Board in December 2025 Intend to use additional share repurchase capacity to target annual share repurchases of up to 2% per year of our outstanding equity value

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R51 G63 B72 #333F48 R0 G40 B85 #002855 R116 G255 B11 #74FF6F R201 G244 B255 #C9F4FF Primary Colors: Secondary Colors: R52 G119 B98 #337761 R255 G199 B44 #FFC72C R0 G113 B206 #0070CD R234 G118 B34 #F07623 January 28, 2026 9 January 28, 2026 9 Delivering Sustainable Shareholder Value Why Invest in Greif 2 Delivering Stronger Earnings Power ▪ Portfolio optimization has enabled focus on higher growth and less cyclical end markets ▪ Cost optimization is driving financial performance towards long-term commitment Adjusted EBITDA margin of 18%+ ▪ Adjusted Free Cash Flow generation driving business towards 50%+ long-term commitment 3 Proactively Allocating Capital for Optimal Return ▪ Consistent return of cash to shareholders, including ongoing share repurchases ▪ Growing in areas with significant addressable growth ▪ Organic growth focused, with disciplined tuck-in M&A and strong synergy execution 1 Packaging Leader to Essential Industries ▪ Highly scalable global franchise ▪ World-renowned brand and high product quality ▪ Positioned to capture incremental product share

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R51 G63 B72 #333F48 R0 G40 B85 #002855 R116 G255 B11 #74FF6F R201 G244 B255 #C9F4FF Primary Colors: Secondary Colors: R52 G119 B98 #337761 R255 G199 B44 #FFC72C R0 G113 B206 #0070CD R234 G118 B34 #F07623 January 28, 2026 11 Tube & Core Fiber DrumsSmall Containers Large & Medium Containers New & Recon Intermediate Bulk Containers (IBCs) Recycled Materials & Adhesives CUSTOMIZED POLYMER SOLUTIONS DURABLE METAL SOLUTIONS SUSTAINABLE FIBER SOLUTIONS INNOVATIVE CLOSURE SOLUTIONS Partitions Specialty Drums Medium & Small Steel Large Steel Specialty Closures Metal Closures Polymer Closures Delivering Customer Value Across Four Solutions Optimized Greif Portfolio

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R51 G63 B72 #333F48 R0 G40 B85 #002855 R116 G255 B11 #74FF6F R201 G244 B255 #C9F4FF Primary Colors: Secondary Colors: R52 G119 B98 #337761 R255 G199 B44 #FFC72C R0 G113 B206 #0070CD R234 G118 B34 #F07623 January 28, 2026 13 Net Income to Combined Adjusted EBITDA GAAP to Non-GAAP Reconciliation Non-GAAP measures are intended to supplement and should be read together with our financial results. They should not be consider ed an alternative or substitute for, and should not be considered superior to, our reported financial results. Accordingly, users o f this financial information should not place undue reliance on these non -GAAP financial measures. 13January 28, 2026

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R51 G63 B72 #333F48 R0 G40 B85 #002855 R116 G255 B11 #74FF6F R201 G244 B255 #C9F4FF Primary Colors: Secondary Colors: R52 G119 B98 #337761 R255 G199 B44 #FFC72C R0 G113 B206 #0070CD R234 G118 B34 #F07623 January 28, 2026 14 Segment Operating Profit to Combined Adjusted EBITDA GAAP to Non-GAAP Reconciliation Non-GAAP measures are intended to supplement and should be read together with our financial results. They should not be consider ed an alternative or substitute for, and should not be considered superior to, our reported financial results. Accordingly, users o f this financial information should not place undue reliance on these non -GAAP financial measures. 14January 28, 2026

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R51 G63 B72 #333F48 R0 G40 B85 #002855 R116 G255 B11 #74FF6F R201 G244 B255 #C9F4FF Primary Colors: Secondary Colors: R52 G119 B98 #337761 R255 G199 B44 #FFC72C R0 G113 B206 #0070CD R234 G118 B34 #F07623 January 28, 2026 15 Segment Operating Profit to Combined Adjusted EBITDA Cont. GAAP to Non-GAAP Reconciliation Non-GAAP measures are intended to supplement and should be read together with our financial results. They should not be consider ed an alternative or substitute for, and should not be considered superior to, our reported financial results. Accordingly, users o f this financial information should not place undue reliance on these non -GAAP financial measures. 15January 28, 2026

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R51 G63 B72 #333F48 R0 G40 B85 #002855 R116 G255 B11 #74FF6F R201 G244 B255 #C9F4FF Primary Colors: Secondary Colors: R52 G119 B98 #337761 R255 G199 B44 #FFC72C R0 G113 B206 #0070CD R234 G118 B34 #F07623 January 28, 2026 16 Adjusted Free Cash Flow GAAP to Non-GAAP Reconciliation Non-GAAP measures are intended to supplement and should be read together with our financial results. They should not be consider ed an alternative or substitute for, and should not be considered superior to, our reported financial results. Accordingly, users o f this financial information should not place undue reliance on these non -GAAP financial measures. 16January 28, 2026

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R51 G63 B72 #333F48 R0 G40 B85 #002855 R116 G255 B11 #74FF6F R201 G244 B255 #C9F4FF Primary Colors: Secondary Colors: R52 G119 B98 #337761 R255 G199 B44 #FFC72C R0 G113 B206 #0070CD R234 G118 B34 #F07623 January 28, 2026 17 Net Income and Class A Earnings Per Share Excluding Adjustments GAAP to Non-GAAP Reconciliation Non-GAAP measures are intended to supplement and should be read together with our financial results. They should not be consider ed an alternative or substitute for, and should not be considered superior to, our reported financial results. Accordingly, users o f this financial information should not place undue reliance on these non -GAAP financial measures. 17January 28, 2026

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R51 G63 B72 #333F48 R0 G40 B85 #002855 R116 G255 B11 #74FF6F R201 G244 B255 #C9F4FF Primary Colors: Secondary Colors: R52 G119 B98 #337761 R255 G199 B44 #FFC72C R0 G113 B206 #0070CD R234 G118 B34 #F07623 January 28, 2026 18 Leverage Ratio and Net Debt GAAP to Non-GAAP Reconciliation Non-GAAP measures are intended to supplement and should be read together with our financial results. They should not be consider ed an alternative or substitute for, and should not be considered superior to, our reported financial results. Accordingly, users o f this financial information should not place undue reliance on these non -GAAP financial measures. 18January 28, 2026

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