Slide 1: Growing Precious Metals Producer in the Great Basin
Growing Precious Metals Producer in the Great Basin CORPORATE PRESENTATION – SEPTEMBER 2026 TSX-V: ITR I NYSE: ITRG INTEGRARESOURCES.COM
Slide 2: Cautionary Note & Disclaimer
CAUTIONARY NOTE & DISCLAIMER This presentation has been prepared by Integra Resources Corp. (“Integra” or the “Company”) solely for the use in connection with the recipient’s evaluation of the Company. This document is a presentation of information about the Company’s activities as the date of the p
Slide 3: A Growing Precious Metals Producer Focused in the Great Basin
Florida Canyon Mine: Nevada DeLamar Project: Idaho Nevada North Project: Nevada A GROWING PRECIOUS METALS PRODUCER FOCUSED IN THE GREAT BASIN OF THE USA Focused profitability & operational Value creation through profitable mining success at principal operating asset, operations, rapid project develo
Slide 4: 2025: Transition → 2026: Stability and De-Risking → 2027-2028: Growth
2025: Transition → 2026: Stability and De-Risking → 2027-2028: Growth Transition DeLamar Feasibility (NPV5%:$1.9 B(1) ), Exec Team Enhancements, Debt Retirement, 2025 Benefit Agreement w/ Tribal Nations (DeLamar) Delamar Fast-41 BLM 15 month Permitting, DeLamar Pre-permitting Site Upgrades have Star
Slide 5: Production Today, Growth Tomorrow
Production Today, Growth Tomorrow DeLamar Production & Florida Canyon generates cash flow to support Cash Flow the advancement of DeLamar & Nevada North Florida Canyon Growth Built-in pipeline of complementary heap leach Pipeline projects underpin unmatched growth profile Idaho Resource Peer leading
Slide 6: Key People: Proven Track Record
Key People: Proven Track Record Executive team with extensive experience in operations, project development, exploration and capital markets George Salamis Clifford Lafleur Andrée St-Germain President, CEO & Director Chief Operating Officer Chief Financial Officer • +30 years of experience • +25 yea
Slide 7: Key Assets: Complementary, High-Quality, Great Basin Focused
Key Assets: Complementary, High-Quality, Great Basin Focused Florida Canyon Mine (Nevada)1 DeLamar Project (Idaho)1 Nevada North Project (Nevada)1,2 Production & Cash Flow Engineering & Permitting De-risking & Growth Status: Acquired by Integra in 2024; currently Status: 2025 Feasibility Study: curr
Slide 8: Corporate Snapshot
Corporate Snapshot Share Structure1 Approx. Ownership Breakdown2 Top Institutional Investors Basic Shares Outstanding 202.9M Options 4.2M Warrants 6.3M RSUs / DSUs 3.1M Fully Diluted Shares Outstanding 216.7M 15% Retail & Other Cash Balance ~US$111M 45% Institutions & High Net Worth 40% Strategic In
Slide 9: Florida Canyon Mine
Florida Canyon Mine Nevada, USA 9
Slide 10: Florida Canyon Mine: Overview
Florida Canyon Mine: Overview Summary • Heap leach gold operation located approximately 45 miles southwest of Turquoise Ridge Winnemucca, Nevada, adjacent to Interstate Highway 80 NEVADA Hog Ranch (Barrick/Newmont) NORTH (Rex Minerals) Goldstrike • Continuous operation from 1986-2011 and then interm
Slide 11: Florida Canyon Mine: Key Changes 2024 to 2026 Technical Report
Florida Canyon Mine: Key Changes 2024 to 2026 Technical Report Since acquiring Florida Canyon in 2024 for $68 million, Integra has transformed the Project into a larger, longer-life operation with a 17% increase in annual gold production and an 8-year operational mine life. MINERAL MINE AVG +74% +3
Slide 12: Florida Canyon: 2026 Technical Report and Updated Mine Plan
Florida Canyon: 2026 Technical Report and Updated Mine Plan Transforming Florida Canyon Mine through higher production profile, longer mine life and lower All-in Sustaining Costs2 After-Tax NPV5%1 Gold Production $601M $723M 82koz (Base Case) (Current) (LOM Avg.) Mine Life Total Gold Sold 8 years 68
Slide 13: Florida Canyon Heap Leach Project: Cash Flow Profile
Florida Canyon Heap Leach Project: Cash Flow Profile (Base Case) Florida Canyon generates average annual after-tax free cash flow1 of $90M, self funding increased production profile and longer mine life After-Tax Cash Flow (US$M) $1,000 $1,000 $800 $800 Annual Capex / Operating Cash Flow (U$M) Cumul
Slide 14: Florida Canyon: Project Economics
Florida Canyon: Project Economics Economics remain robust across a range of metal price assumptions; economics demonstrate leverage to metal prices • Base case gold prices represent a ~10% discount to June 2026 consensus pricing from 2026 to 2029, then $3,600/oz thereafter, for a LOM weighted averag
Slide 15: Florida Canyon Mine: Operations Overview, Consistency & Growth
Florida Canyon Mine: Operations Overview, Consistency & Growth Operating Metrics • Consistent annual gold production of ~82k starting in 2027 • Meaningful decrease in Site Level AISC1 in 2027 and for LOM Operating Metrics Unit Q2 2026 YTD 2026 as heavy investment in sustaining capital that started i
Slide 16: Florida Canyon Mine: Growth Outlook
Florida Canyon Mine: Growth Outlook Extended Mine Life, Increase in Annual Production highlighted in Updated Life of Mine Plan at Florida Canyon Mine Guidance Summary 2026 Gold production ounces 70,000 - 75,000 2026 total Cash Cost1 $/oz sold $2,300 - $2,500 2026 Mine-site AISC1 $/oz sold $3,300 – $
Slide 17: 2026 Drilling Program: Largest in Company History
2026 Drilling Program: Largest in Company History 50,000 m drill program targeting resource growth, mine life extension and development readiness Florida Canyon DeLamar Nevada North 42,500 m drilling 2,500 m drilling 5,500 m drilling Florida Target: near-mine Target: Pre- Target: resource Canyon oxi
Slide 18: Florida Canyon Mine: Meaningful Near-Term Growth
Florida Canyon Mine: Meaningful Near-Term Growth Exploration Proof of Concept: Near-Term Growth Where It Matters Most The Headline: What it is: Why it matters: Selected intercepts include (1) : • Within/adjacent to existing pits → • 2025-Met-R02: 138 m @ 0.32 g/t minimal capital Thick, near surface
Slide 19: Florida Canyon Mine: Growth Potential
Florida Canyon Mine: Growth Potential Integra focused on defining additional oxide material to support production growth and mine life extension Near Mine Growth Regional Growth North Florida Pit North Canyon Mine HLP Central Pit I-80 Radio ~5 miles Towers Pits South Main HLP Standard Pit Jasperoid
Slide 20: Florida Canyon Mine: Growth Drilling
Florida Canyon Mine: Growth Drilling 74% increase in Mineral Reserve contributed in part to exploratory, in-fill and confirmatory drilling in June 2026 updated Technical Report and Life of Mine Plan Drill Program Highlights Opportunity 1: Near-surface oxide potential from historical dumps • Targetin
Slide 21: Florida Canyon Mine: North & South Dump Results
Florida Canyon Mine: North & South Dump Results Drilling results and preliminary volume / grade estimates underscore near-term growth potential1 Historical North Mine Dump Conceptual Volume Grade Estimates1 (Mt) (g/t Au) North Dump ~19 - 32 ~0.11 - 0.25 South Dump ~15 - 24 ~0.11 - 0.25 Combined ~34
Slide 22: Florida Canyon Mine: Inter-Pit Results
Florida Canyon Mine: Inter-Pit Results Inter-Pit areas between active and historical pits offer meaningful growth potential adjacent to current mining area Results confirm broad, near-surface intervals of gold mineralization with consistent gold grades and heap leach potential; Central/Radio Tower S
Slide 23: DeLamar Project
DeLamar Project Idaho, USA 23
Slide 24: DeLamar Heap Leach Project: Overview
DeLamar Heap Leach Project: Overview Property includes Summary1 the historic Kinross • 100% owned gold-silver project in southwestern Idaho, 80 km southwest of DeLamar mine that produced 750koz Au the city of Boise; consists of DeLamar and Florida Mountain deposits Lucky Friday and 47.6Moz Ag (HL) •
Slide 25: DeLamar Heap Leach Project: 2025 Feasibility Study Highlights
DeLamar Heap Leach Project: 2025 Feasibility Study Highlights Large-scale, conventional open pit oxide heap leach operation, with competitive cost profile and excellent economics After-Tax NPV5% Initial Capital1 AuEq Production $774M $1.9B $389M 106koz 119koz (Base Case) (Current) (LOM Avg.) (Yr 1-5
Slide 26: DeLamar Heap Leach Project: 2025 Feasibility Study Highlights
DeLamar Heap Leach Project: 2025 Feasibility Study Highlights 10 year mine life delivers avg. production of 106kozs AuEq at competitive site AISC (co-prod) of $1,480/oz AuEq1 Production & Cost Profile1 Cash Flow Profile1 Total AuEq Production Cash Cost (co-product) AISC (co-product) After-Tax Operat
Slide 27: DeLamar Heap Leach Project: Next Steps
DeLamar Heap Leach Project: Next Steps Early works underway to fund procurement, land acquisition, and other low-risk activities to reduce execution risk at DeLamar Next Steps February 2026 Financing Overview Permitting: NEPA process began on May 29, US$61M Bought Deal Financing – Use of Proceeds Br
Slide 28: DeLamar Heap Leach Project: Significant Scarcity Value
DeLamar Heap Leach Project: Significant Scarcity Value Number of Projects 1) Primary Au/Ag development projects resource estimate, globally 1,452 projects 2) Remove projects located outside United States 182 projects 3) Remove primary underground mining projects 113 projects 4) Remove projects witho
Slide 29: DeLamar Heap Leach Project: NEPA Permitting Schedule
DeLamar Heap Leach Project: NEPA Permitting Schedule Source: Refer to the Company’s news release dated January 12, 2025. 29
Slide 30: USA Project Advancement: The Right Time
USA Project Advancement: The Right Time DeLamar selected for FAST-41 Transparency Projects Program in January 2026 Immediate Measures to Increase American Mineral Production Executive Order: • Executive Order signed by President Donald Trump in March 2025 • Aimed at boosting domestic critical minera
Slide 31: Integra & Shoshone-Paiute: DeLamar Relationship Agreement
Integra & Shoshone-Paiute: DeLamar Relationship Agreement Relationship Agreement aligns interests of Integra and a federally recognized Tribal Nation to develop DeLamar Project Agreement Overview Benefits to Integra • Business-driven: mutually • Enhanced position: Agreement beneficial arrangement to
Slide 32: Nevada North Project
Nevada North Project Nevada, USA 32
Slide 33: Nevada North Heap Leach Project: Overview
Nevada North Heap Leach Project: Overview Summary1 Wildcat Deposit: Turquoise Ridge • PEA stage, low-sulphidation epithermal gold-silver deposit located in the NEVADA Hog Ranch (Barrick/Newmont) NORTH (Rex Minerals) Goldstrike Farrell Mining District, Nevada, ~56km from the town of Lovelock; 17,612-
Slide 34: Nevada North Heap Leach Project: Simple, High-Margin Operation
Nevada North Heap Leach Project: Simple, High-Margin Operation 2023 PEA outlined a simple, low-cost, high margin operation with significant exploration upside US$310M NPV5% 1Moz / ~80koz AuEq US$973/oz 13-year LOM 37% IRR 3-year Payback Total / Avg. LOM LOM AISC 100Mt of Ore Mined After-Tax After-ta
Slide 35: Wildcat Heap Leach Deposit: Exploration Potential
Wildcat Heap Leach Deposit: Exploration Potential Wildcat is located ~30 miles away from currently operating Florida Canyon mine and demonstrates solid growth potential Commentary Wildcat Surface Samples • Mineralized targets discovered at surface outside the current pit; surface samples collected i
Slide 36: Integra’s Value Proposition
Integra’s Value Proposition 36
Slide 37: 2026-2027: Multiple Near-Term Catalysts Driving Growth, De-Risking & Re-Rating
2026-2027: Multiple Near-Term Catalysts Driving Growth, De-Risking & Re-Rating 2026: Execution & Resource Growth 2027: De-Risking & Growth Visibility • Ongoing 50,000 m drill program across project • Florida Canyon production growth to 80–85 koz portfolio • DeLamar Record of Decision (permit) expect
Slide 38: Next Steps & Corporate Timeline
Next Steps & Corporate Timeline Near term success through profitability, rapid project advancement, disciplined capital allocation, and strategic M&A Key Objectives Integra Corporate Timeline Exploration Studies & Permitting Production Florida Canyon: consistent operations, significant re-investment
Slide 39: Building a Mid-tier Precious Metals Producer
Building a Mid-tier Precious Metals Producer Production & Florida Canyon delivers consistent production and cash flow delivering exposure to Cash Flow the strong gold price environment; excellent potential for mine life extension Growth Cash flow from Florida Canyon supports built-in growth pipeline
Slide 40: Appendix
Appendix
Slide 41: Board of Directors & Advisors
Board of Directors & Advisors Board of Directors with deep industry knowledge and strong governance to support the execution of Integra’s strategy Anna Ladd-Kruger Ian Atkinson Carolyn Clark Loder Chair of Board Director Director • +25 years of experience • +50 years of experience • +30 years of exp
Slide 42: Florida Canyon Mine: Site Overview
Florida Canyon Mine: Site Overview Maintenance Shop Site Aerial View Mining CIC Circuit Crushing Recovery Plant 42
Slide 43: Non-GAAP Financial Measures
Non-GAAP Financial Measures Cautionary Note Regarding Non-GAAP Financial Measures The Company has included herein certain performance measures (“non-GAAP measures”) which are not specified, defined, or determined under generally accepted accounting principles (in our case, International Financial Re
Slide 44: Mineral Reserves & Resources
Mineral Reserves & Resources1 Mineral Reserves Proven Probable Proven & Probable GOLD (Au) Tonnes (kt) Grade (g/t) Ounces (koz) Tonnes (kt) Grade (g/t) Ounces (koz) Tonnes (kt) Grade (g/t) Ounces (koz) Florida Canyon Mine (a) Oxide - - - 118,471 0.31 1,191 118,471 0.31 1,191 Oxide 11,675 0.40 149 10
Slide 45: Florida Canyon Mine: Notes to Mineral Reserve & Resource Estimate
Florida Canyon Mine: Notes to Mineral Reserve & Resource Estimate Notes to Mineral Reserves: 1. Mineral reserves are reported at the point of delivery to the process plant, using the 2014 CIM Definition Standards, with an effective date of May 31, 2026. The qualified personas defined under NI 43-101
Slide 46: Standard Mine: Notes to Mineral Resource Estimate
Standard Mine: Notes to Mineral Resource Estimate Notes to Mineral Resources: 1. Mineral Resources are reported, using the 2014 CIM Definition Standards, with an effective date of May 31, 2026. The Qualified Person for the estimate is Mr. Antoine Teixeira de Carvalho, P.Geo., an employee of BT Afric
Slide 47: DeLamar Project: Notes to Mineral Reserve & Resource Estimate
DeLamar Project: Notes to Mineral Reserve & Resource Estimate Notes to Mineral Reserves: 1. All Mineral Resource estimates have been prepared in accordance with NI 43-101 standards. 2. Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability. 3. Jeffrey Bickel, of
Slide 48: Nevada North Project: Notes to Mineral Resource Estimate
Nevada North Project: Notes to Mineral Resource Estimate Notes to Mineral Resources: 1. Mineral resources that are not mineral reserves do not have demonstrated economic viability. 2. William Lewis, P.Geo, and Alan S J San Martin, AusIMM(CP), of Micon International Limited have reviewed and validate
Slide 49: DeLamar Project: Untapped Exploration Potential
DeLamar Project: Untapped Exploration Potential ~28km2 of highly prospective exploration ground along strike from current ~4.8Moz AuEq M&I resource; significant non- oxide potential underlying the oxide-mixed resource at DeLamar and Florida Mountain1 BlackSheep Target • ~25km2 of exploration ground
Slide 50: Wildcat Heap Leach Deposit: Drilling Overview
Wildcat Heap Leach Deposit: Drilling Overview Drilling confirmed continuity of mineralization and gathered important technical data; critical markers for working exploration hypothesis remain intact for Breccia Pipe target Note: Refer to news release dated December 12, 2024; NI 43-101 technical repo
Slide 51: Corporate Office
Corporate Office: 400 Burrard Street, Suite 1050 Vancouver, BC Canada, V6C 3A6 TSX-V: ITR | NYSE: ITRG For more information, please contact: Email: ir@integraresources.com Phone: 604-416-0576 51