Integra Resources : Corporate Presentation - Detailed Geology and PEA - April 2021

Idaho, USA

THE DELAMAR PROJECT

April 2021

www.integraresources.com

TSX-V: ITR / NYSE American: ITRG

Cautionary Statement Regarding Forward Looking Information

This document has been prepared by Integra Resources Corp. (the "Integra Resources" or "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. 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). 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 its mineral projects; results from work performed to date; the estimation of mineral resources; the realization of mineral resource estimates; the development, operational and economic results of the preliminary economic assessment (the "PEA") for the DeLamar and Florida Mountain deposits (the "DeLamar Project"), including cash flows, capital expenditures, development costs, extraction rates, life of mine cost estimates; timing of completion of a technical report summarizing the results of the updated PEA; timing of completion of an updated resource estimate; 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; costs and timing of future exploration; the completion and timing of future development studies, including a pre-feasibility study; 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; the DeLamar Project as an ideal acquisition target; 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: 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 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; 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 April 15, 2020 for the fiscal year ended December 31, 2019.

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. Tim Arnold, P.Eng of Reno Nevada, is Qualified Persons within the meaning of NI 43-101 - Standards of Disclosure for Mineral Projects. Mr. Baker and Mr. Arnold have reviewed and verified that 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 to U.S. Investors Concerning Estimates of Measured, Indicated and Inferred Resources

The terms "mineral resource", "measured mineral resource", "indicated mineral resource", "inferred mineral resource" used herein are Canadian mining terms used in accordance with National Instrument 43-101 - Standards of Disclosure for Mineral Projects ("NI 43-101") under the guidelines set out in the Canadian Institute of Mining and Metallurgy and Petroleum (the "CIM") Standards on Mineral Resources and Mineral Reserves, adopted by the CIM Council, as may be amended from time to time (the "CIM Definition Standards"). Inferred mineral resources' have a great amount of uncertainty as to their existence, and as to their economic and legal feasibility. It cannot be assumed that all or any part of an

inferred mineral resource will ever be upgraded to a higher category. These definitions differ from the definitions in the United States Securities and Exchange Commission (the "SEC") Industry Guide 7 ("Industry Guide 7"). United

States investors are cautioned not to assume that all or any part of measured or indicated mineral resources will ever be converted into mineral reserves. United States investors are also cautioned not to assume that all or any part of an inferred mineral resource exists, or is economically or legally mineable.

Under Industry Guide 7, a mineral reserve is defined as a part of a mineral deposit which could be economically and legally extracted or produced at the time the mineral reserve determination is made. While the terms "mineral resource", "measured mineral resource", "indicated mineral resource", and "inferred mineral resource" are recognized and required by Canadian regulations, they are not defined terms under Industry Guide 7 and historically they have not been permitted to be used in reports and registration statements filed with the SEC. As such, information contained herein concerning descriptions of mineralization and resources under Canadian standards may not be comparable to similar information made public under Industry Guide 7 by U.S. companies in SEC filings.

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The Toll of a Difficult Market: 2011-2016

From 2011-2016, miners went into survival mode to survive a difficult gold price environment, focusing on:

1. Profitability and margins (i.e. - High Grading)
2. Reducing capital expenditures and exploration budgets
3. Repaying debt

These steps were done at the expense of reserve expansion

______________________

Miners were mining through reserves without replacing them.

Source: National Bank Financial, S&P Market Intelligence, Wood Mackenzie

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DeLamar Stands Out

All pre-production projects with a gold/silver resource estimate, globally…

Remove projects without a valid economic study since

2015…

3,498 Assets

352 Assets

Remove projects with less than 50% precious metals production…1

Remove projects with LOM avg. annual production less than 100 koz AuEq…

Remove projects with a mine life less than 10 years…

Remove projects outside Australia, Canada, New Zealand, USA and Western Europe…

Remove projects owned by a producing gold company…

Remove projects with initial capex of US$500 million or greater…

Wasamac acquired by Yamana Gold on November 2, 2020

185 Assets

85 Assets

54 Assets

18 Assets

10 Assets

5 Assets	4 Assets

DeLamar

Valentine Lake

Back River

Wasamac

Spanish Mountain

	Integra Resources	Marathon Gold	Sabina Gold-Silver	Monarch Gold	Spanish Mountain
Source: National Bank Financial, S&P Market Intelligence, corporate disclosure
Note: Market capitalizations as at July 14, 2020				4
Note: Equivalencies based on long-term street consensus price forecasts of US$1,517/oz Au and US$18.13/oz Ag

1. Precious metals production includes gold, silver, platinum, and palladium combined

What we know…

1.

2.

DeLamar has what it takes to be a mine. The PEA has demonstrated an economically robust, low cost operation.1

This is just the tip of the iceberg. A land package that has quadrupled in size with multiple targets identified through IP, geochemistry, historical data compilation and mapping.

1. The PEA is preliminary in nature and includes inferred mineral resources that are too speculative geologically to have economic considerations applied to them that would enable them to be categorized as mineral reserves. There is no certainty that PEA results will be realized. Mineral resources are not mineral reserves and do not have demonstrated economic viability. Please refer to the "Technical Report and Preliminary Economic Assessment for the DeLamar and

Florida Mountain Gold - Silver Project, Owyhee County, Idaho, USA" dated October 22, 2019.	5