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Third Quarter 2025 Operating & Financial Results November 13, 2025 TSX-V: ITR I NYSE: ITRG INTEGRARESOURCES.COM
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CAUTIONARY NOTE & DISCLAIMER 2 This document 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 presentation and should be read in conjunction with all other disclosure documents of the Company. The information in this presentation is not intended to modify, qualify, supplement or amend information disclosed under corporate and securities legislation of any jurisdiction applicable to the Company. It is information in a summary form and does not purport to be complete and does not constitute an offer to sell or the solicitation of an offer to buy any security. It is not intended to be relied upon as advice to investors or potential investors and does not take into account the investment objectives, financial situation or needs of any particular investor. These should be considered, with or without professional advice, when deciding if an investment is appropriate. The information contained in this presentation is derived from estimates made by the Company, information that has been provided to the Company by other parties and otherwise publicly available information concerning the business and affairs of the Company and does not purport to be all-inclusive or to contain all the information that an investor may desire to have in evaluating whether or not to make an investment in the Company. In particular, information derived from third party sources has not been independently verified and is subject to material updating, revision and further amendment. No representation or warranty, express or implied, is made or given by or on behalf of the Company or any of its affiliates, or any of the directors, officers or employees of any such entities as to the accuracy, completeness or fairness of the information or opinions contained in this presentation and no responsibility or liability is accepted by any person for such information or opinions. In furnishing this presentation, the Company does not undertake or agree to any obligation to provide the recipients with access to any additional information or to update this presentation or to correct any inaccuracies in, or omissions from, this presentation that may become apparent. No person has been authorized to give any information or make any representations other than those contained in this presentation and, if given and/or made, such information or representations must not be relied upon as having been so authorized. The information and opinions contained in this presentation are provided as at the date of this presentation. The contents of this presentation are not to be construed as legal, financial or tax advice. Each prospective investor should contact his, her or its own legal adviser, independent financial adviser or tax adviser for legal, financial or tax advice. No securities commission or regulatory authority has reviewed the accuracy or adequacy of the information presented. This presentation is for informational purposes only and does not constitute an offer or a solicitation of an offer to purchase the securities referred to herein. Certain information set forth in this presentation contains “forward‐looking statements” and “forward‐looking information” within the meaning of applicable Canadian securities legislation and in applicable United States securities law (referred to herein as forward‐looking statements). Except for statements of historical fact, certain information contained herein constitutes forward‐looking statements which includes, but is not limited to, statements with respect to: the future financial or operating performance of the Company and the Wildcat and Mountain View deposits (the “Nevada North Project”), the Florida Mountain and DeLamar deposits (the “DeLamar Project”) and the Florida Canyon mine (the “Florida Canyon Mine” and together with the Nevada North Project and the DeLamar Project, the “Projects”); benefits from the acquisition of Florida Canyon Gold Inc. (“Florida Canyon”) including, but not limited to, goals, synergies, opportunities, profile, project and production optimization, potential production of the Florida Canyon Mine and extension of mine life at the Florida Canyon Mine; expectations and timing related to guidance on the Florida Canyon Mine; expectations with respect to future cash flows from operations, net debt and financial results benefits results from work performed to date; the estimation of mineral resources and reserves; the realization of mineral resource and reserve estimates; the development, operational and economic results of economic studies on the Projects, including cash flows, revenue potential, development, capital and operating expenditures, development costs and timing thereof, extraction rates, production, life of mine projections and cost estimates; magnitude or quality of mineral deposits; anticipated advancement of permitting, optimization and the mine plans for the Projects, as applicable; exploration expenditures, costs and timing of the development of new deposits; underground exploration potential; costs and timing of future exploration; the completion and timing of future development studies; estimates of metallurgical recovery rates, including prospective use of the Albion Process; anticipated advancement of the Projects and future exploration prospects; requirements for additional capital; the future price of metals; government regulation of mining operations; environmental risks; relationships with local communities; the timing and possible outcome of pending regulatory matters; the realization of the expected economics of the Projects; future growth potential of the Projects; and future development plans. Forward-looking statements are often identified by the use of words such as “may”, “will”, “could”, “would”, “anticipate”, ‘believe”, “expect”, “intend”, “potential”, “estimate”, “budget”, “scheduled”, “plans”, “planned”, “forecasts”, “goals” and similar expressions. Forward-looking statements are based on a number of factors and assumptions made by management and considered reasonable at the time such statement was made. Assumptions and factors include: expected synergies from acquisition of Florida Canyon; the Company’s ability to complete its planned exploration and development programs; the absence of adverse conditions at the Projects; satisfying ongoing covenants under the Company’s loan facilities; no unforeseen operational delays; no material delays in obtaining necessary permits; results of independent engineer technical reviews; the possibility of cost overruns and unanticipated costs and expenses; the price of gold remaining at levels that continue to render the Projects economic, as applicable; the Company’s ability to continue raising necessary capital to finance operations; and the ability to realize on the mineral resource and reserve estimates. Forward‐looking statements necessarily involve known and unknown risks and uncertainties, which may cause actual performance and financial results in future periods to differ materially from any projections of future performance or result expressed or implied by such forward‐looking statements. These risks and uncertainties include, but are not limited to: general business, economic and competitive uncertainties; the actual results of current and future exploration activities; conclusions of economic evaluations; meeting various expected cost estimates; benefits of certain technology usage; changes in project parameters and/or economic assessments as plans continue to be refined; future prices of metals; possible variations of mineral grade or recovery rates; the risk that actual costs may exceed estimated costs; geological, mining and exploration technical problems; failure of plant, equipment or processes to operate as anticipated; accidents, labour disputes and other risks of the mining industry; delays in obtaining governmental approvals or financing; risks related to local communities; the speculative nature of mineral exploration and development (including the risks of obtaining necessary licenses, permits and approvals from government authorities); title to properties; and other factors beyond the Company’s control and as well as those factors included herein and elsewhere in the Company’s public disclosure. Although the Company has attempted to identify important factors that could cause actual actions, events or results to differ materially from those described in the forward-looking statements, there may be other factors that cause actions, events or results not to be as anticipated, estimated or intended. Readers are advised to study and consider risk factors disclosed in Integra’s Annual Information Form dated March 26, 2025 for the fiscal year ended December 31, 2024, which is available on the SEDAR+ issuer profile for the Company at www.sedarplus.ca. Investors are cautioned not to put undue reliance on forward-looking statements. The forward-looking statements contained herein are made as of the date of this presentation and, accordingly, are subject to change after such date. The Company disclaims any intent or obligation to update publicly or otherwise revise any forward-looking statements or the foregoing list of assumptions or factors, whether as a result of new information, future events or otherwise, except in accordance with applicable securities laws. Investors are urged to read the Company’s filings with Canadian securities regulatory agencies, which can be viewed online under the Company’s profile on SEDAR+ at www.sedarplus.ca. The scientific and technical information contained in this news release has been reviewed and approved by Gregory Robinson (P.E., SME Registered Member), Integra’s General Manager of the Florida Canyon Mine. Mr. Robinson is a “qualified person” as defined in National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”). Cautionary Note for U.S. Investors Concerning Mineral Resources and Reserves NI 43-101 is a rule of the Canadian Securities Administrators which establishes standards for all public disclosure an issuer makes of scientific and technical information concerning mineral projects. Technical disclosure contained in this presentation has been prepared in accordance with NI 43-101 and the Canadian Institute of Mining, Metallurgy and Petroleum Classification System. These standards differ from the requirements of the U.S. Securities and Exchange Commission (“SEC”) and resource information contained in this presentation may not be comparable to similar information disclosed by domestic United States companies subject to the SEC's reporting and disclosure requirements. All references to “$” in this presentation are to U.S. dollars unless otherwise stated.
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Sean Deissner Vice President, Finance Jason Banducci Vice President, Corporate Development & IR Greg Robinson General Manager, Florida Canyon Mine Andrée St-Germain Chief Financial Officer Dale Kerner Vice President, Permitting 3 Q3 2025 Operating & Financial Results: Call Participants George Salamis President, Chief Executive Officer & Director Clifford Lafleur Chief Operating Officer
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Focused on demonstrating profitability and operational success at principal operating asset, the Florida Canyon Mine Rapidly advancing two development stage heap leach projects: the DeLamar Project and the Nevada North Project Delivering value through successful mining operations, efficient project development, disciplined capital allocation, and strategic M&A Maintaining the highest industry standards for environmental, social, and governance practices in all communities we operate in 4 GROWTH FOCUSED PRECIOUS METALS PRODUCER IN THE GREAT BASIN OF THE USA Florida Canyon Mine: Nevada DeLamar Project: Idaho Nevada North Project: Nevada
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5 Q3 2025: Strong Production & Improved Financial Position Integra delivered record revenue, adjusted net earnings, and free cash flow in Q3 2025 Gold Produced 20,653 oz Sust. & Growth Capital $17.2 million Note: All dollar amounts are expressed in U.S. dollars unless otherwise stated; Refer to Integra's financial statements and MD&A for the quarter ended September 30, 2025 available under Integra’s SEDAR+ profile at www.sedarplus.ca 1. See Non-GAAP Financial Measures slide; 2. Cash balance as of September 30, 2025; 3. Mine Plan of Operations (“MPO”), see news release from September 4, 2025. DeLamar Milestone3 MPO accepted Revenue $70.7 million Adjusted Earnings1 $16.3 million Cash Costs1 $1,876/oz Cash2 $81.2 million Operating Cash Flow $35.6 million Mine-site AISC1 $2,647/oz
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6 Q3 2025: Florida Canyon Operating Results Strong quarterly production results from Florida Canyon; on track to meet 2025 production guidance Q3 Highlights • Production of 20,653 gold ounces and 20,265 gold ounces sold at mine-site AISC of $2,647/oz sold. • Higher strip ratio and lower ore mined due to reinvestment strategy (waste stripping and ramping up new mining areas). • Strong production supported by recovery of ounces recently placed on Phase IIIa leach pad and residual recovery from Phases I, II. • Increased solution flow through rates and new CIC circuit commissioned in late 2024 also supported strong production. • Grades and recoveries remain in-line with expectations. • Cost pressure due to royalties and excise taxes which are directly impacted by fluctuations in the gold price. • Construction of the Phase IIIb heap leach pad continued in Q3 2025, with commissioning expected in Q4 2025. • $15.4 million in sustaining capital for new leach pad construction, waste stripping, and equipment refurbishments. Note: Refer to Integra's financial statements and MD&A for the quarter ended September 30, 2025 available under Integra’s SEDAR+ profile at www.sedarplus.ca; 1. See Non-GAAP Financial Measures slide Operating Metrics Unit Q3 2025 YTD 2025 Ore kt 2,533 8,629 Waste kt 3,399 8,164 Strip ratio waste/ore 1.34 0.95 Crushed ore to pad kt 2,003 5,649 ROM to pad kt 1,165 3,638 Total to leach pads kt 3,168 9,287 Processed grade g/t Au 0.20 0.22 Gold recovery rate % 60.7 60.5 Gold produced oz 20,653 58,063 Gold sold oz 20,265 57,999 Cash cost1 $/oz sold 1,876 1,915 Mine-site AISC1 $/oz sold 2,647 2,542
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7 Production guidance intact; AISC to be slightly above guidance due to increased royalties resulting from higher gold prices Note: Refer to news release dated June 26, 2025 available on Integra’s corporate website or under Integra’s SEDAR+ profile at www.sedarplus.ca; 1. See Non-GAAP Financial Measures slide Florida Canyon Mine: 2025 Operating Outlook 2025 Guidance Gold production ounces 70,000 - 75,000 Total cash cost1 $/oz sold $1,800 - $1,900 Mine-site AISC1 $/oz sold $2,450 - $2,550 Sustaining capital expenditures and leases $M $48.0 - $53.0 Growth capital expenditures $M $8.0 - $10.0 2025-2026 represents a period of significant capital re-investment to support long-term profitability • Mine Optimization: numerous ongoing optimization studies at Florida Canyon focused on identifying areas for increased efficiency, process improvement, and cost reduction. • Sustaining Capital: catch-up and current capitalized waste stripping to access new mining areas, mobile fleet rebuild and replacement financing, heap leach pad expansion, among other items. • Growth Capital: expansion projects and various studies including drill testing oxide growth targets, mobile equipment financing to grow the fleet, engineering studies on potential steepening of pit wall slopes, and the possibility of increasing run-of-mine gold mineralized material to the heap leach pad. Outlook Commentary
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Florida Canyon Mine: 2025 Growth Drilling 8Note: Refer to news releases dated May 8, 2025, August 6, 2025 and October 9, 2025 available on Integra’s corporate website or under Integra’s SEDAR+ profile at www.sedarplus.ca Drilling designed to support an updated mineral reserve & resource and life-of-mine plan expected in 2026 Opportunity 1: Near-surface oxide potential from historical dumps • Targeting large volumes of historical gold-mineralized backfill and low-grade waste material previously estimated to be below the mining cut-off grade in a significantly lower gold price environment; greatest near-term opportunity to increase mineral resources and potentially extend mine life. Opportunity 2: Expand in-situ resources between existing mine open pits • Targeting “saddle/ridge” areas located between active and historical pits. Many of these areas sparsely drilled historically and offer meaningful oxide growth potential directly adjacent to current and future mining phases. Opportunity 3: Test lateral extensions and in-pit infill • Targeting lateral extensions of existing pits and infill drilling within areas planned for further pit pushbacks. Potential identified to improve resource classification, optimize mine planning, and increase short-term ore feed. Drill Program Highlights
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Florida Canyon Mine: North & South Dump Results 9 1. The potential quantity and grade of the North and South Dumps are conceptual in nature. There has been insufficient exploration, drilling, and metallurgical heap leach recovery testing to estimate and define a Mineral Resource, as defined by National Instrument 43-101 – Standards of Disclosure for Mineral Projects, and it is uncertain if further exploration will result in the target being delineated as a Mineral Resource. Exploration targets such as the North and South Dumps are used to provide a conceptual estimate of the potential quantity and grade of a mineral deposit, based on known and additional limited geological evidence. It is an early-stage assessment that will help to guide further exploration, but it is not a mineral resource or mineral reserve and should not be treated as such. Note: Refer to news releases dated May 8, 2025, August 6, 2025 and October 9, 2025 available on Integra’s corporate website or under Integra’s SEDAR+ profile at www.sedarplus.ca Drilling results and preliminary volume / grade estimates underscore near-term growth potential1 Historical North Mine Dump Historical South Mine Dump Conceptual Estimates1 Volume (Mt) Grade (g/t Au) North Dump ~19 - 32 ~0.11 - 0.25 South Dump ~15 - 24 ~0.11 - 0.25 Combined ~34 - 56 ~0.11 - 0.25 • Material originally mined from the late- 1980s to mid-1990s when gold prices were US$325 - $450/oz and cut-off grades were 0.28 - 0.34 g/t Au. • Tonnage ranges derived from an estimated mineable percentage of the total volume calculated from 3D surfaces and an approximation of the volume of material exceeding the current mining cut-off grade. Commentary1
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Florida Canyon Mine: Inter-Pit Results 10Note: Refer to news releases dated May 8, 2025, August 6, 2025 and October 9, 2025 available on Integra’s corporate website or under Integra’s SEDAR+ profile at www.sedarplus.ca 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 Saddle areas show best potential
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11 Q3 2025: DeLamar Project Update DeLamar MPO deemed complete by BLM; Feasibility Study continues to be advanced with target release in Q4 2025 Permitting • BLM notified Integra that the MPO was determined to be administratively complete, marking a significant permitting milestone for DeLamar. • BLM, its third-party National Environmental Policy Act ("NEPA") consultant, SWCA Environmental Consultants, and cooperating agencies are now proceeding with environmental review in accordance with the NEPA. • Concurrently, Integra is working with Federal, state and local regulatory authorities to obtain all necessary permits for mine construction, operations, and reclamation. Feasibility Study • Optimization and pit sizing adjustments completed in Q3 2025. Final mine design underway which will be followed by mine sequencing, production planning and costing which will be used to update metal recovery and economic model. • Feasibility Study expected to be delivered in Q4 2025. External Affairs • Historical Relationship Agreement executed with the Shoshone-Paiute establishing a transformative and long-term partnership for development of DeLamar. Highlights Note: Refer to Integra's financial statements and management discussion and analysis for the three months ended September 30, 2025 available under Integra’s SEDAR+ profile at www.sedarplus.ca
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Q3 2025: DeLamar / Shoshone-Paiute Relationship Agreement 12 Relationship Agreement aligns interests of Integra and a federally recognized Tribal Nation to develop DeLamar Project • Business-driven: mutually beneficial arrangement to advance DeLamar operating as a partnership. • Established framework: key components: Stewardship, Economic Participation, Governance, Life-of-Mine Commitment. • 5+ years in the making: extensive in-person engagement, site visits, consultation on mine design/baseline studies, and community meetings. • Enhanced position: Agreement driven by predictability, efficiency, and partnership for the development of DeLamar. • Interest alignment: incorporates key Tribal cultural, environmental and economic interests into mine plan; increased predictability for DeLamar milestones. • Reputation & brand building: ability to successfully mitigate project risks and foster reputation for respectful business practices benefits current/future operations. Agreement Overview Benefits to Integra Note: Refer to news release dated August 15, 2025 available on Integra’s corporate website or under Integra’s SEDAR+ profile at www.sedarplus.ca
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13 Q3 2025: Nevada North Project Update Integra to begin work on an updated technical report for Nevada North in 2026 with a target release date in early 2027 Highlights Wildcat Deposit • Metallurgical testing continued on core from Wildcat for future economic studies, mine design, and permitting. Hydrogeological drilling for future permitting is expected to be completed in Q4 2025. • Environmental analysis for the Wildcat Exploration Plan of Operations (“EPO”) is complete, and decision documentation will be complete pending a Memorandum of Agreement with the State Historical Preservation Office and Tribal governments. • Reclamation Permit from Nevada Division of Environmental Protection ("NDEP") Bureau of Mining Regulation and Reclamation ("BMRR") is also in process and anticipated in Q4 2025. Mountain View Deposit • Environmental analysis for the Mountain View EPO completed and posted for 30- day public comment period (completed); Final Environmental Assessment will be published in Q4 2025 (with no public comment period); NDEP BMRR Reclamation Permit is anticipated on a similar timeframe. Note: Refer to Integra's financial statements and management discussion and analysis for the three months ended September 30, 2025 available under Integra’s SEDAR+ profile at www.sedarplus.ca EPO for Wildcat and Mountain View will provide greater flexibility for significantly expanded exploration and drilling campaigns in the future
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14 Q3 2025: Financial Results Highlights $0.10/sh Adjusted EPS1 $35.6M Operating Cash Flow 40% Operating Profit Margin1 $16.3M Adjusted Earnings1 • Strong cash balance as at September 30, 2025 of $81.2 million and robust working capital (excl. derivatives) of $70.9 million. • Increase in cash balance compared to Q2 2025 is a result of strong mine operating earnings, partially offset by sustaining capital expenditures at Florida Canyon, engineering and permitting expenditures at DeLamar, and corporate G&A. • Q3 2025 revenues totaled $70.1 million with a cost of sales of $42.1 million, which resulted in $28.6 million in mine operating earnings (vs. $25.2 million in Q2 2025); ~40% operating profit margin for the quarter (37% operating profit margin year-to-date 2025). • Increased gross profit resulting from increased revenue due to higher gold prices realized in Q3 2025 (avg. realized gold price of $3,464/oz in Q3 vs. $3,228/oz YTD). • Adjusted earnings of $16.3 million ($0.10 per share) for a total YTD adjusted earnings of $32.5 million ($0.19 per share). $81.2M Cash $70.1M Revenue Q3 2025 was highlighted by strong operating margins, growing free cash flow, and an improved financial position Note: Refer to Integra's financial statements and MD&A for the quarter ended September 30, 2025 available under Integra’s SEDAR+ profile at www.sedarplus.ca; 1. See Non-GAAP Financial Measures slide
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Looking Forward: Continuing a Transformational 2025 Shareholder returns continue to be generated through operational execution and project advancement Note: Based on internal estimates as of November 13, 2025; subject to change. 15 Florida Canyon: re-investment, optimization, growth drilling, 2026 technical report DeLamar: Feasibility Study; permitting advancement toward NOI and final BLM schedule Nevada North: accelerated de-risking; environmental and pre-permitting activities Capital Markets: enhanced liquidity and capital markets profile; further index inclusion Corporate: capital allocation and evaluation of strategic M&A
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16 Reno Las Vegas Twin Falls Boise City Idaho Nevada DeLamar Nevada North Producing Asset City Legend Development Asset Florida Canyon DeLamar Nevada North Florida Canyon Continuing to Build the Next Mid-tier Producer Production & Cash Flow Growth Pipeline Jurisdiction Team Resource Scale Attractive Valuation Florida Canyon generates cash flow to support the advancement of DeLamar & Nevada North Built-in pipeline of complementary heap leach projects underpin unmatched growth profile Scarcity of high-quality assets in the Great Basin; opportune time for project advancement Enhanced executive team; support from large institutions, Wheaton, Alamos, and Beedie Peer leading resource inventory of 7.0Moz AuEq M&I and 3.1Moz AuEq Inf. 1 across three assets Recent transition from developer to producer provides attractive entry point for investors Note: Map not to scale; gold equivalent using US$1,700/oz Au and US$21.50/oz Ag; 1. Refer to mineral reserve and mineral resource statement effective December 31, 2024 available on Integra’s corporate web site 100 Miles0
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17 Q&A
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CAUTIONARY NOTE REGARDING NON-GAAP FINANCIAL MEASURES 18 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 Reporting Standards, or “IFRS”). These are common performance measures in the gold mining industry, but because they do not have any mandated standardized definitions, they may not be comparable to similar measures presented by other issuers. Accordingly, we use such measures to provide additional information and you should not consider them in isolation or as a substitute for measures of performance prepared in accordance with generally accepted accounting principles (“GAAP”). Please see the information under the heading “Non-GAAP Measures” in the Company’s management’s discussion and analysis for the financial period ended September 30, 2025, which section is incorporated by reference in this presentation, for a description of the non- GAAP disclosed in this presentation. The Company’s management’s discussion and analysis may be found on SEDAR+ at www.sedarplus.ca and on EDGAR at www.sec.gov.
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19 Non-GAAP Financial Measures Avg. Realized Gold Price Cash Cost & AISC Operating Margin Capital Expenditures Note: Refer to Integra's financial statements and MD&A for the quarter ended September 30, 2025 available under Integra’s SEDAR+ profile at www.sedarplus.ca; All dollar amounts are expressed in U.S. dollars unless otherwise stated. Free Cash Flow Operating Cash Flow before changes in Working Capital Adjusted Earnings
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20 For more information, please contact: Jason Banducci, Vice President Corporate Development & Investor Relations Email: jason.banducci@integraresources.com TSX-V: ITR | NYSE: ITRG