Integra Resources : Corporate Presentation - February 2023

February 2023

The DeLamar Gold-Silver Project

IDAHO'S NEXT PRECIOUS METALS MINE

TSX-V: ITR / NYSE: ITRG

INTEGRARESOURCES.COM

CAUTIONARY NOTE

This document has been prepared by Integra Resources Corp. (the "Integra Resources" or the "Company") solely for the use in the presentation being given in connection with the recipient's evaluation of the Company which is defined and outlined further herein. This documentation 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. 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. The information 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 subsidiary undertakings 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 attendees 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 (referred to herein as forward‐looking statements) and in applicated United States securities law. 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 DeLamar Project; 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 the preliminary feasibility study (the "PFS") for the DeLamar and Florida Mountain deposits (the "DeLamar Project"), including cash flows, revenue potential, staged development, capital expenditures, development costs and timing thereof, extraction rates, life of mine projections and cost estimates; timing of completion of a technical report summarizing the results of the PFS; magnitude or

quality of mineral deposits; anticipated advancement of the DeLamar Project mine plan; 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 DeLamar Project and future exploration prospects; requirements for additional capital; the future price of metals; government regulation of mining operations; environmental risks; the timing and possible outcome of pending regulatory matters; the realization of the expected economics of the DeLamar Project; future growth potential of the DeLamar Project; 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 information is provided. Assumptions and factors include: the Company's ability to complete its planned exploration programs; the absence of adverse conditions at the DeLamar Project; no unforeseen operational delays; no material delays in obtaining necessary permits; the price of gold remaining at levels that render the DeLamar Project economic; 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; the speculative nature of mineral exploration and development (including the risks of obtaining necessary licenses, permits and approvals from government authorities); title to properties; the impact of COVID-19 on the timing of exploration and development work and management's ability to anticipate and manage the foregoing factors and risks. 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 the Company's annual information form dated March 30, 2022 for the fiscal year ended December 31, 2021 and the Company's Form 40-F annual report for the year ended December 31, 2021.

E. Max Baker, P.Geo, of Reno, Nevada, is a Qualified Person within the meaning of National Instrument 43-101 - Standards of Disclosure for Mineral Projects ("NI 43-101"). Tim Arnold, P.Eng of Reno Nevada, is Qualified Persons within the meaning of NI 43-101. Mr. Baker and Mr. Arnold have reviewed, verified and approved the scientific and technical information contained herein.

There can be no assurance that forward‐looking statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. The Company undertakes no obligation to update forward‐looking statements

if circumstances or management's estimates or opinions should change except as required

by applicable securities laws. The forward-looking statements contained herein is presented for the purposes of assisting investors in understanding the Company's plan, objectives and goals and may not be appropriate for other purposes. Forward-looking statements are not guarantees of future performance and the reader is cautioned not to place undue reliance on forward‐looking statements. This presentation also contains or references certain market, industry and peer group data which is based upon information from independent industry publications, market research, analyst reports and surveys and other publicly available sources. Although the Company believe these sources to be generally reliable, such information is subject to interpretation and cannot be verified with complete certainty due to limits on the availability and reliability of raw data, the voluntary nature of the data gathering process and other inherent limitations and uncertainties. The Company has not independently verified any of the data from third party sources referred to in this presentation and accordingly, the accuracy and completeness of such data is not guaranteed.

Cautionary Note for U.S. Investors Concerning Mineral Resources and Reserves

National Instrument 43-101 - Standards of Disclosure for Mineral Projects ("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 news release 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 press release 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.

Cautionary Note Regarding Non-GAAP Financial Measures

Alternative performance measures in this document such as "cash cost", "AISC" "after-tax cash flow" are furnished to provide additional information. These non-GAAP performance measures are included in this presentation because these statistics are used as key performance measures that management uses to monitor and assess performance of the DeLamar Project, and to plan and assess the overall effectiveness and efficiency of mining operations. These performance measures do not have a standard meaning within International Financial Reporting Standards ("IFRS") and, therefore, amounts presented may not be comparable to similar data presented by other mining companies. These performance measures should not be considered in isolation as a substitute for measures of performance in accordance with IFRS.

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DeLamar Project:

Gold and Silver in Idaho

INTEGRA IS ONE OF THE FEW HEAP LEACH PROJECTS IN THE US WITH A CLEAR PATH TO PERMITTING

Advanced development project in southwestern	Management track record of successful mine
Idaho - 136k oz AuEq per year Heap Leach with
development and M&A totaling over US$2 billion
High Margins (US$814 AISC)1

Large Resource: 4.1 M oz AuEq (M&I) and 663k oz AuEq (Inf)1

Financed to Grow with Beedie Capital

1. See NI 43-101 technical report titled: "Technical Report and Preliminary Feasibility Study for the DeLamar and Florida Mountain Gold - Silver project, Owyhee County, Idaho, USA", dated March 22, 2022 with an effective date of January 24, 2022 available under Integra Resources' SEDAR profile at www.sedar.comand EDGAR profile at https://www.sec.gov/edgar/search-and-access

DeLamar: Scarce number of >125,000 oz/yr Heap Leach

Development Opportunities with Economic Studies

DeLamar Project

✓ Large Resource

✓ Economic Study Published ✓ Clear Path to Permitting

GSV 1

Acquired by Orla

C$242 Million

Gemfield2

Acquired by Centerra

US$206.5 Million

Corvus Gold 3

Acquired by AngloGold

US$370 Million

1. See news release dated August 12, 2022.

2.

See news release dated February 22, 2022.

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3. See news release dated January 19, 2022.

2023 Strategy: 136,000 oz/yr Heap Leach Stand-alone1

Exploration Upside through Oxide-Mixed Expansion:

Definition drilling on low-grade stockpiles from Kinross, et al operations. ~60 Mt of oxide, ROM material at surface that could extend the Heap Leach mine life.

Lower Project Financing Risk:

Low-cost Heap Leach gold-silver mine reduces capital requirements by ~US$235M over the mine life, a 1 reduction of 40%, while generating average after-tax annual free-cash flow of US$101 million over 7 years.

Decreased Permitting Footprint:

Heap Leach mine development scenario decreases permitting footprint.

Lower Development Risk:

Development risk of a stand-alone Heap Leach mine is expected to be lower than alternative mining scenarios.

Optionality Preserved:

High-gradegold-silver potential at multiple targets could further complement the Project in future and non- oxide milling expansion work continues.

1. See NI 43-101 technical report titled: "Technical Report and Preliminary Feasibility Study for the DeLamar and Florida Mountain Gold - Silver project,	5
Owyhee County, Idaho, USA", dated March 22, 2022 with an effective date of January 24, 2022 available under Integra Resources' SEDAR profile at
www.sedar.comand EDGAR profile athttps://www.sec.gov/edgar/search-and-access