Integra Resources : Corporate Presentation - December 2023

A Leading Precious Metals Developer Focused in the Great Basin

CORPORATE PRESENTATION - DECEMBER 2023

TSX-V: ITR I NYSE: ITRG

INTEGRARESOURCES.COM

CAUTIONARY NOTE

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. 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 and in applicated 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, Mountain View and DeLamar Project (the "Projects"); 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 (together, the "DeLamar Project") and the Preliminary Economic Assessment (the "PEA") for the Wildcat and Mountain View Projects, 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 PEA; magnitude or quality of mineral deposits; anticipated advancement of the mine plans for the Projects; 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; 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: 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 Projects 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. 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 report on Form 20-F dated March 17, 2023 for the fiscal year ended December 31, 2022, and Millennial Precious Metals' management's discussion and analysis dated April 28, 2023 for the fiscal year ended December 31, 2022.

Raphael Dutaut 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 is a Qualified Person within the meaning of NI 43-101. Mr. Dutaut 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 are 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 readers are 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 Projects, 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.

2

DeLamar:	Wildcat & Mountain View:
Gold & Silver in Idaho	Gold in Nevada

BUILDING A PORTFOLIO OF HIGH QUALITY, HEAP LEACH PROJECTS IN THE GREAT BASIN

Corporate strategy focused on rapid project advancement and disciplined risk taking to maximize shareholder and stakeholder value

Robust resource inventory of 6.2Moz AuEq M&I and 0.9Mozs AuEq Inf. with significant near-term oxide growth potential1

Management team with track record of success in exploration, construction, mining operations, project financing, and capital markets

Strategic support from Beedie Capital and Wheaton Precious Metals - well positioned to advance key assets through the next stage of development

Note: AuEq based on 77.7:1 gold/silver ratio; 1. See NI 43-101 technical reports titled: "Technical Report and Preliminary Feasibility Study for the DeLamar and Florida Mountain Gold-Silver project, Owyhee County, Idaho, USA", dated October 31,

2023 with an effective date of August 25, 2023 and "Technical Report Preliminary Economic Assessment for the Wildcat & Mountain View Projects, Pershing and Washoe Counties, Nevada, USA", dated July 30, 2023, with an effective date of June 28, 3 2023", available under Integra's SEDAR+ profile at www.sedarplus.caand EDGAR profile at https://www.sec.gov

Corporate Snapshot

Share Structure1

Basic Shares Outstanding	68.8M
Options	3.3M
Warrants	2.0M
RSUs / DSUs	1.9M
Fully Diluted Shares Outstanding	76.0M
Basic Market Capitalization	~US$70M
	Analyst Coverage

Ownership Breakdown2

Strategic Shareholders

10%	Institutions & High Net Worth
15%	Retail & Other
	45%
	Strategic
30%	Management & Board
Top 5 Institutions

1.	Capital structure and market capitalization as at December 20, 2023; shown on a post-consolidation basis; 21.9M warrants outstanding to purchase ~2.0M common shares of Integra	4
2.	Basic ownership; approximate ownership percentages based on latest reporting available from SEDI, Bloomberg and Capital IQ

One of the Largest Portfolios of Gold & Silver Resources in the Great Basin Not Controlled by a Major Producer

Oregon

California

Legend

Integra Development Asset

Integra Exploration Asset

Non-Operating Asset

Operating Asset

City

Idaho

Beartrack-Arnett (Revival)

Stibnite

(Perpetua)

Kilgore (Excellon)

Boise City

DeLamar

		Twin Falls
		Oakley	Black Pine
		(Excellon)	(Liberty)
Hog Ranch	Turquoise Ridge
(Rex Minerals)	(Barrick/Newmont)
Mountain View Dune		Goldstrike
	(Barrick/Newmont)
Eden	Carlin
Wildcat	Marigold	(Barrick/Newmont)
Railroad-Pinion
Florida Canyon	(SSR)
(Argonaut)	Cortez (Orla)
(Barrick/Newmont)
Marr
	Bald Mountain
Reno	Red	(Kinross)
Ocelot
	Canyon
Round Mountain
(Kinross)
	Hasbrouck		Gold Springs
	(West Vault)		(Gold Springs)
			Goldstrike	Utah
			(Liberty)

Nevada

Las Vegas

PRODUCTION

	DeLamar
	Oxide
	Wildcat	RESOURCE GROWTH
	& DEVELOPMENT
	Mountain View
DeLamar Non-Oxide
War Eagle	BlackSheep	EXPLORATION
Dune	Eden	Red Canyon1
Marr	Ocelot	Cerro Colorado1

Note: Map is not to scale; 1. Integra holds an option to acquire Red Canyon and Cerro Colorado in the future; refer to Company disclosure for details on property specific option agreements available under Integra's	5
SEDAR+ profile at www.sedarplus.caand EDGAR profile at https://www.sec.gov

Focused on De-Risking Activities at Key Assets

• DeLamar:
• • 2023 mineral resource update &
    2022 PFS; metallurgical and geotechnical studies advancing towards feasibility level
• Wildcat & Mountain View:
• • 2023 PEA published including advanced metallurgical and geotechnical studies

Technical Resource

Work Growth

• DeLamar:
• • Updated mineral resource estimate delivered in Q3 2023 including growth from stockpiles
• Wildcat & Mountain View:
• • Updated resource estimate and PEA demonstrates growth and scalability; Exploration Plan of Operations submitted

• DeLamar:
• • Draft Mine Plan of Operations (MPO) submitted to the BLM in Q4 2023
• Wildcat & Mountain View:
• • Baseline studies ongoing; Exploration Plan of Operations submitted with anticipated filing of MPO in 2024/2025

Permitting	Local
& Baseline	Community

• DeLamar, Wildcat & Mountain View:
• • Actively engaged with NGOs, local communities and government representatives in Idaho and Nevada
  • Working closely with local Tribes to facilitate information sharing and oversight

Note: See NI 43-101 technical reports titled: "Technical Report and Preliminary Feasibility Study for the DeLamar and Florida Mountain Gold-Silver project, Owyhee County, Idaho, USA", dated October 31, 2023 with an effective date of August 25,
2023 and "Technical Report Preliminary Economic Assessment for the Wildcat & Mountain View Projects, Pershing and Washoe Counties, Nevada, USA", dated July 30, 2023, with an effective date of June 28, 2023", available under Integra's	6
SEDAR+ profile at www.sedarplus.caand EDGAR profile at https://www.sec.gov

Integra's Projects Stand Out: USA Project Benchmarking

1. Pre-productionprojects with Au/Ag resource estimate, globally
2. Remove projects located outside USA
3. Remove primary underground mining projects
4. Remove projects without a valid economic study since 2021
5. Remove projects with <50% precious metal production
6. Remove projects with >US$300M initial capital expenditure
7. Remove projects with <80koz AuEq LOM avg. annual production
8. Remove projects owned by producing companies

Number of Projects

2,836 projects

1. projects

1. projects 19 projects 12 projects 9 projects

			5 projects
DeLamar						Wildcat &
		4 projects1
			Mountain View

Integra's projects hold significant scarcity value and are among few in the USA being advanced toward a mining permit

Source: S&P Market Intelligence and specific company disclosure; Note: Market data as at September 2023; 1. Projects include DeLamar (Integra), Wildcat & Mountain View (Integra), CK (U.S. Gold), and Freemont (Stratabound Minerals);	7
gold equivalency based on US$1,700/oz Au and US$21.00/oz Ag

Scarcity Value: Very few large heap leach projects available in the USA with increased recent M&A activity

DeLamar Project

• 2022 PFS: After-Tax NPV(5%) US$314M
  & 33% IRR (US$1,700/oz Au, US$21.50/oz Ag)
• 2023 MRE: 4.8Moz (M&I) & 0.6Mozs (Inf.) AuEq (+25% Heap Leach M&I)

Integra holds one of the largest inventories of gold and silver resources in the Great Basin not controlled by a major producer

Wildcat & Mountain View Projects

• 2023 MRE: 1.5Moz (M&I) & 0.3Mozs (Inf.) AuEq
• 2023 PEA: After-Tax NPV(5%) US$310M
  & 37% IRR (US$1,700/oz Au, US$21.50/oz Ag)

Gold Standard Ventures

• FS published
• Acquired by Orla for ~C$240M1

Goldfield District Project

• Acquired by Centerra for ~US$207M2

Corvus Gold

• PEA published
• Acquired by AngloGold for ~US$370M3

2

Crown & Sterling Projects

• Acquired by AngloGold for US$150M4

Average acquisition cost of >US$100/oz Au5

Note: AuEq based on 77.7:1 gold/silver ratio; See NI 43-101 technical reports titled: "Technical Report and Preliminary Feasibility Study for the DeLamar and Florida Mountain Gold-Silver project, Owyhee County, Idaho, USA", dated October
31, 2023 with an effective date of August 25, 2023 and "Technical Report Preliminary Economic Assessment for the Wildcat & Mountain View Projects, Pershing and Washoe Counties, Nevada, USA", dated July 30, 2023, with an effective
date of June 28, 2023", available under Integra's SEDAR+ profile at www.sedarplus.caand EDGAR profile at https://www.sec.gov; 1. Gold Standard Ventures news release dated August 12, 2022; 2. Centerra Gold news release dated	8
February 22, 2022; 3. Corvus Gold news release dated January 19, 2022; 4. Coeur Mining news release date September 19, 2022; 5. Acquisition cost calculated using corporate enterprise value and total mineral resource at the time of
transaction announcement

DeLamar Heap Leach Project: The Flagship

DeLamar demonstrates strong economics, a rapid payback, and significant upside potential from stockpiles1

8-year LOM

at 35,000tpd

US$814/oz

LOM AISC

(co-product)

954koz / 136koz

AuEq

Total / Avg. LOM

Production

Production Profile

US$314M NPV5%

33% IRR

After-Tax

Base Case2

2-year Payback

After-Tax

Production (AuEq oz)

160,000

140,000

120,000

100,000

80,000

60,000

40,000

20,000

0

Au Production

Ag Production (Au Eq oz)

Potential for mine life extension and improved economics from stockpiles

Yr1

Yr2

Yr3

Yr4

Yr5

Yr6

Yr7

Yr8

Yr9

Yr10

Yr11

Note: AuEq based on US$1,700/oz Au and US$21.50/oz Ag; 1. 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 October 31, 2023 with an effective date of August 25, 2023 available under Integra's SEDAR+ profile at www.sedarplus.caand EDGAR profile at https://www.sec.gov;Gold price assumption: US$1,700/oz Au; Silver price	9
assumption is US$21.50/oz Ag

DeLamar Heap Leach Project: Overview

Summary1

• 100% owned, advanced gold-silver heap leach project in southwestern Idaho

• 2022 PFS (open-pit,heap-leach) outlined 35ktpd operation producing on average

~136koz AuEq per year at US$814/oz AISC, modelling ~81Mt of material

• 2023 updated stockpile resource added ~45Mt of potentially heap leachable material

• Total defined resource of 4.8Mozs AuEq M&I and 0.6Mozs AuEq Inferred

Lucky Friday

(HL)

Property includes the historic Kinross DeLamar mine that produced 750koz Au and 47.6Moz Ag1

• ~25% increase to heap leachable M&I resource since 2022 PFS; high quality

ounces with ~90% of the current resource in the M&I category

• Baseline studies and metallurgical tests for further technical reports largely complete;

submission of the draft MPO (Mine Plan of Operations) completed in Q4 2023

									DELAMAR
			Mineral Resources1
	Tonnes		Gold	Silver		Gold	Silver
Category		Grade	Grade		Ounces	Ounces
(Mt)
		(g/t)	(g/t)		(koz)	(Moz)
Measured	37.4		0.46	27.2		554	32.7
Indicated	210.4		0.35	16.3		2,381	110.1
M&I	247.8		0.37	18.1		2,935	142.7
Inferred	43.1		0.31	10.8		428	15.0

Beartrack-Arnett (RVG)

Mahogany	Stibnite
(Headwater Gold /
(Perpetua)
Newcrest JV)
	Kilgore
Boise		(Excellon)
IDAHO
		Idaho Falls
	Oakley
Twin Falls	(Excellon)	Black Pine

(Liberty)

Non-Operating Asset

Operating Asset

City

Note: AuEq based on 77.7:1 gold/silver ratio; map is not to scale; 1. See NI 43-101 technical report titled: "Technical Report and Preliminary Feasibility Study for the DeLamar and Florida Mountain Gold-Silver project, Owyhee	10
County, Idaho, USA", dated October 31, 2023 with an effective date of August 25, 2023, available under Integra's SEDAR+ profile at www.sedarplus.caand EDGAR profile at https://www.sec.gov