FUL Q3 2026 Earnings Presentation

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Third Quarter 2026 1200 Willow Lake Blvd, St Paul, Minnesota 55110 www.hbfuller.com Earnings Conference Call H.B. Fuller September 24, 2026

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© H.B. Fuller Company, 2026 | 2 Disclosure Safe Harbor Statement Certain matters discussed today are forward-looking statements within the meaning of the federal securities laws, including Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Such statements reflect our current expectations, and actual results may differ as they are subject to the kinds of risks that are enumerated in the Company’s Securities and Exchange Commission (SEC) filings. The Company disclaims any obligation to subsequently revise any forward-looking statements to reflect actual events or circumstances after the date of such statements. Regulation G The information presented in this presentation regarding adjusted gross profit and margin, adjusted selling, general and administrative expense, consolidated and segment organic revenue, adjusted income before income taxes and income from equity investments, adjusted income taxes, adjusted effective tax rate, adjusted net income, adjusted diluted earnings per share, and adjusted earnings before interest, taxes, depreciation, and amortization (EBITDA), adjusted EBITDA margin, net debt, and net-debt-to-adjusted-EBITDA margin does not conform to U.S. generally accepted accounting principles (U.S. GAAP) and should not be construed as an alternative to the reported results determined in accordance with U.S. GAAP. Management has included this non-GAAP information to assist in understanding the operating performance of the company and its operating segments as well as the comparability of results to the results of other companies. The non-GAAP information provided may not be consistent with the methodologies used by other companies. All non-GAAP information is reconciled with reported U.S. GAAP results in the “Regulation G Reconciliation” tables except for our forward-looking non-U.S. GAAP measures contained in our fiscal 2026 financial guidance, which the company cannot reconcile to forward-looking U.S. GAAP results without unreasonable effort. Additional Information Please refer to our annual report on Form 10-K, filed with the SEC, and available on our website at www.investors.hbfuller.com.

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© H.B. Fuller Company, 2026 | 3 Q3 Overview Adjusted EBITDA increased 9% year-on-year to $187 million Total Revenue increased 5.2% YOY Adjusted EBITDA Margin increased 80 basis points YOY to 19.9% Organic Revenue increased 4.4% YOY • Positive pricing more than offset lower volume Adjusted EPS (Diluted) increased 21% YOY to $1.52

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© H.B. Fuller Company, 2026 | 4 Global Business Unit Update Hygiene, Health, and Consumable Adhesives Engineering Adhesives Building Adhesive Solutions Key Metrics Key Metrics Key Metrics • Organic revenue up 6% YOY driven by strong pricing execution • Strength in Hygiene, Beverage Labeling, and Tape & Label more than offset weakness in Packaging • Adjusted EBITDA margin improved 70 basis points to 17.6% • Organic revenue up 5% YOY, excluding Solar; organic revenue up 1% YOY, including Solar • Aerospace and General Industries segments showed continued strength • Fully lapped the Solar exit and do not anticipate a meaningful impact on organic growth going forward • Adjusted EBITDA margin of 23.8%, up 50 basis points YOY • Organic revenue up 5% YOY, demonstrating the innovation the group has brought to market • Growth was driven by strength in Roofing and Insulating Glass, partially offset by softness in Wood • Adjusted EBITDA increased 8%; adjusted EBITDA margin was up 50 basis points YOY, driven by positive price

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© H.B. Fuller Company, 2026 | 5 Regional Perspective Americas • Organic revenue increased 4% YOY • Positive organic growth in all three GBUs • Driven by strong performance in Roofing, Insulating Glass, and Aerospace market segments EIMEA • Organic revenue increased 9% YOY • Driven by positive price in all three GBUs • Strong volume growth in EA markets, including Automotive and Aerospace Asia-Pacific • Excluding Solar, organic revenue increased 4% YOY • Driven by strength in HHC, particularly in Packaging • Organic revenue flat YOY including Solar

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© H.B. Fuller Company, 2026 | 6 • Dislocation continues to be a defining feature of our operating environment • We do not expect normalization until well after the conflict subsides • Raw material prices have stabilized at elevated levels and we expect them to remain at or near these current levels for at least the remainder of the year • As conditions warrant, we will judiciously raise price to offset raw material costs and protect our margins Supply Chain Disruption Update

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© H.B. Fuller Company, 2026 | 7 Project Quantum Leap Update • Project Quantum Leap is a multi-year initiative to: − Optimize our manufacturing and distribution network − Improve factory utilization and service levels − Increase the efficiency of our global supply chain • We continue to make good progress, and implementation is tracking as expected • Teams remain focused on disciplined execution, delivering the long-term benefits we have outlined Overview

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© H.B. Fuller Company, 2026 | 8 Project Quantum Leap Update Manufacturing Footprint Financial Benefits Capital Investment & One-Time Costs • Began Project Quantum Leap with 82 manufacturing facilities at the end of 2024 • Excluding AMS, we expect to exit 2026 with approximately 62 facilities • Expect to further reduce the footprint to below 60 facilities by the end of 2027, progressing to our goal of 55 facilities • These actions are improving network efficiency, positioning us to better serve our customers with a more streamlined operating model • We continue to target approximately $75 million of annualized conversion cost savings by the end of 2030 • Through the end of 2026, we expect to have realized approximately $25 million of those benefits • Looking ahead, we expect the program to deliver an additional $20 million to $25 million of incremental savings in 2027 • We expect to invest $150 million of capital over the life of the program • We plan to invest roughly $50 million of capital in 2026 and anticipate less than $25 million of capital spending in 2027, with further reduction in spending expected after 2027 • We expect approximately $50 million of total one-time cash costs, with approximately a third of those already realized • Total one-time costs are expected to be more than offset by proceeds from real estate sales

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© H.B. Fuller Company, 2026 | 9 Q3 Financial Summary • Organic revenue increased 4.4% YOY • Adjusted gross profit margin increased 120 bps YOY to 33.5% driven by pricing execution and restructuring savings • Adjusted SG&A increased 8% YOY and decreased 7% sequentially from the second quarter of 2026 • Adjusted EBITDA increased 9% YOY to $187M • Adjusted EPS increased 21% YOY to $1.52 • Year-to-date cash flow from operations improved to $183M, up 17% YOY • Net-debt-to-adjusted EBITDA was slightly less than 3.0X, down from 3.3X YOY

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Adjusted EPS Revenue © H.B. Fuller Company, 2026 | 10 2026 Financial Guidance Adjusted EBITDA • Still expect net revenue to be up mid-single digits YOY • Still expect organic revenue to be up low-single digits YOY; price up mid-single digits, volume down low-single digits • Expect FX translation to positively impact revenue by approximately 2% • Now expect adjusted EBITDA to be in the range of $655M to $670M • Now expect adjusted EPS to be in the range of $4.70 to $4.85 Operating Cash Flow • Still expect cash flow from operations to be in the range of $300M to $325M excluding the impact of AMS-related items Core Tax Rate • Now expect core tax rate to be between 25.5% and 26.0%

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© H.B. Fuller Company, 2026 | 12 AMS Acquisition Update • We continue to make strong progress through the regulatory approval process • Remain on track to close the transaction by year-end • We are committed to our deleveraging plan and expect leverage to return to our targeted range of 2.5x to 3.0x within two years of closing • AMS will enhance our portfolio, strengthen our position in attractive healthcare markets, and further support our long-term growth objectives • We look forward to welcoming the AMS team and sharing additional updates on our next call

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© H.B. Fuller Company, 2026 | 13 Q3 Summary • Strong year-on-year revenue, EBITDA, and EPS growth, with expanded margins • Pricing actions are offsetting higher raw material costs amid supply chain disruption • Restructuring efforts continue to enhance our operating leverage • On track to close the AMS acquisition before year-end Our results reflect the steady progress we continue to make across the business.

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Q&A

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© H.B. Fuller Company, 2026 | 28March 26, 2026 Regulation G Reconciliations 1 Acquisition project costs include costs related to evaluating, acquiring and integrating business acquisitions. Acquisitio n project costs include $9,152 and $168 in transaction costs (primarily consulting and professional fees) and $203 and $350 in purchase accounting costs (primarily professional fees for valuation services, interest on holdback liabilities and inventory step-up cost) for the three months ended August 29, 2026 and August 30, 2025, respectively. Acquisition project costs include $10,661 and $13,068 in transaction costs (primarily consulting and professional fees) and $1,019 and $880 in purchase accounting costs (primarily professional fees for valuation services, interest on holdback liabilities and inventory step -up cost) for the nine months ended August 29, 2026 and August 30, 2025, respectively. Additionally, for the three and nine months ended August 29, 2026, acquisition project costs include a ($19,713) unrealized gain on a foreign exchange forward contract related to a pending acquisition. 2 Organizational realignment includes costs incurred as a direct result of the organizational realignment program, including professional fees related to legal entity and business structure changes, employee retention and severance costs, and facility ratio nalization costs related to the closure of production facilities and consolidation of business activities. Facility rationalization costs incl ude plant closure costs and the impact of accelerated depreciation. Organizational realignment includes $307 and $1,174 in professional fees related to legal entity and business structure changes, $4,478 and $478 in employee severance and other related costs, and $1,049 and $2 ,968 related to facility rationalization costs for the three months ended August 29, 2026 and August 30, 2025, respectively. Organizational realignment includes $918 and $3,893 in professional fees related to legal entity and business structure changes, $10,311 and $5,667 in employee severance and other related costs, and $9,040 and $10,468 relate d to facility rationalization costs for the nine months ended August 29, 2026 and August 30, 2025, respectively. 3 Project One includes non-capitalizable project costs related to implementing our global Enterprise Resource Planning system, including upgrading to SAP S/4HANA®, which has upgraded and standardized our information system. 4 Other for the three and nine months ended August 29, 2026 includes debt extinguishment and bridge financing costs related to an acquisition of $7,791. Additionally, it includes acquired environmental liabilities and ongoing litigation and product claims related to a divested business. 5 Discrete tax items for the three and nine month s ended August 29, 2026 are rela ted to various U.S. and foreign tax matters . Discrete tax benefit for the three months ended August 30, 2025 relates to various U.S. and foreign tax matters. Discrete tax expense for the nine months ended August 30, 2025 relates to the impact of withholding tax recorded on earnings that are no longer permanently reinvested, offset by various U.S. and foreign tax matters. 6 The income tax effect on adjustments represents the difference between income taxes on net income before income taxes and inc ome from equity method investments reported in accordance with U.S. GAAP and adjusted net income before income taxes and income from equity method investments. 7 Adjusted net income attributable to H.B. Fuller, adjusted diluted income per common share attributable to H.B. Fuller, adjust ed EBITDA and adjusted EBITDA margin are non -GAAP financial measures. Adjusted net income attributable to H.B. Fuller is defined as net income before the specific adjustments shown above. Adjusted diluted income per common share is defined as adjusted net income attributable to H.B. Fuller divided by the number of diluted common shares. Adjusted EBITDA is defined as net income before interest, income taxes, depreciation, amortization and the specific adjustments shown above. Adjusted EBITDA margin is define d as adjusted EBITDA divided by net revenue. The table above provides a reconciliation of adjusted net income attributable to H.B. Fuller, adjusted diluted income per common share attributable to H.B. Fuller, adjusted EBITDA and adjusted EBITDA margin to net incom e attributable to H.B. Fuller, the most directly comparable financial measure determined and reported in accordance with U .S. GAAP. 8 Depreciation and amortization expense added back for EBITDA is adjusted for amounts already included in adjusted net income attributable to H.B. Fuller tot aling ($199) and ($261) for the three months ended August 29, 2026 and August 30, 2025, respectively and ($778) and ($362) for the nine months ended August 29, 2026 and August 30, 2025, respectively. 9 Adjusted income before income taxes and income from equity method investments is a non-GAAP financial measure. Adjusted income before income taxes and income from equity method investments is defined as income before income taxes and income from equity method investments before the specific adjustments shown above. The table above provides a reconciliation of adjusted income before income taxes and income from equity method investments to income before income taxes and income from equity method investments, the most directly comparable financial measure determined and reported in accordance with U.S. GAAP. 10 Adjusted income taxes and adjusted effective income tax rate are non-GAAP financial measures. Adjusted income taxes is defined as income taxes before the specific adjustments shown above. Adjusted effective income tax rate is defined as income taxes divided by adjusted income before income taxes and income from equity method investments. The table above provides a reconciliation of adjusted income taxes and adjusted effective income tax rate to income taxes, the most directly comparable financial measure determined and reported in accordance with U.S. GAAP. 11 Adjusted gross profit and adjusted gross profit margin are non-GAAP financial measures. Adjusted gross profit and adjusted gross profit margin are defined as gross profit and gross profit margin excluding the specific adjustments shown above. The table above provides a reconciliation of adjusted gross profit and gross profit margin to gross profit and gross profit margin, the most directly comparable financial measure determined and reported in accordance with U.S. GAAP. 12 Adjusted selling, general and administrative expenses is a non-GAAP financial measure. Adjusted selling, general and administrative expenses is defined as selling, general and administrative expenses excluding the specific adjustments shown above. The table above provides a reconciliation of adjusted selling, general and administrative expenses to selling, general and administrative expenses, the most directly comparable financial measure determined and reported in accordance with U.S. GAAP. 13 We use the term “organic revenue” to refer to net revenue, excluding the effect of foreign currency changes and acquisitions and divestitures. Organic growth reflects adjustments for the impact of period-over-period changes in foreign currency exchange rates on revenues and the revenues associated with acquisitions and divestitures.

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© H.B. Fuller Company, 2026 | 29March 26, 2026 Regulation G Reconciliations 18 Net debt and net debt-to-adjusted EBITDA are non-GAAP financial measures. Net debt is defined as total debt less cash and cash equivalents. Net debt-to-adjusted EBITDA is defined as net debt divided by trailing twelve months adjusted EBITDA. The calculations of these non-GAAP financial measures are shown in the table above. The table above provides a reconciliation of each of these non-GAAP financial measures to total debt, the most directly comparable financial measure determined and reported in accordance with U.S. GAAP. 19 Net working capital, annualized net revenue and net working capital as a percentage of annualized net revenue are non-GAAP financial measures. Net working capital is defined as trade receivables, net plus inventory less trade payables. Annualized net revenue is defined as net revenue for the three months ended on the date presented multiplied by four. Net working capital as a percentage of annualized net revenue is net working capital divided by annualized net revenue. The calculations of these non-GAAP financial measures are shown in the table above. The table above provides a reconciliation of each of these non-GAAP financial measures to the most directly comparable financial measure determined and reported in accordance with U.S. GAAP.

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