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Integra Reports Second Quarter 2025 Results; Consistent Performance and Significant Capital Investment at Florida Canyon GOLD MINE

Financials

1050 – 400 Burrard Street

Vancouver, British Columbia,

Canada, V6C 3A6

Email: [email protected]

FOR IMMEDIATE RELEASE TSXV: ITR; NYSE American: ITRG

August 13, 2025 www.integraresources.com

INTEGRA REPORTS SECOND QUARTER 2025 RESULTS; CONSISTENT PERFORMANCE AND SIGNIFICANT CAPITAL

INVESTMENT AT FLORIDA CANYON GOLD MINE

Vancouver, British Columbia – Integra Resources Corp. (“Integra” or the “Company”) (TSX: ITR; NYSE American:

ITRG) is pleased to announce financial and operating results for the three months ended June 30, 2025 (the

“second quarter” or “Q2 2025”). The Company will host a conference call to discuss second quarter 2025 results

on Thursday, August 14, 2025 at 11:00 AM Eastern Time / 8:00 AM Pacific Time.

(All amounts expressed in United States (“U.S.”) dollars unless otherwise stated)

Second Quarter 2025 Highlights:

• Mined 3,074,440 tonnes of ore and 2,966,291 tonnes of waste at a strip ratio of 0.96 at the Florida Canyon

Mine (“Florida Canyon”). The resulting mining rate for the quarter was 33,785 tonnes per day (“tpd”), a 1%

increase from Q1 2025.

• Florida Canyon produced 18,087 gold ounces and sold 18,194 gold ounces at a record average realized

price of $3,332 per gold ounce.

• Record quarterly revenue of $61.1 million which exceeded Q1 2025 revenue of $57.0 million.

• Record mine operating earnings of $25.2 million, representing a 41% operating margin(1), which exceeded

the $15.5 million and 27% operating margin achieved in Q1 2025.

• Adjusted earnings(1) of $11.8 million, or $0.07 per share, which exceeded the $4.4 million, or $0.03 per

share in Q1 2025.

• Net earnings were $10.6 million, or $0.06 earnings per share, compared to $1.0 million, or $0.01 earnings

per share, in Q1 2025.

• Cash costs(1) of $1,849 per gold ounce sold decreased from $2,016 in Q1 2025. H1 2025 cash costs of

$1,936 per gold ounce were slightly higher than the Company's guidance range of $1,800 to $1,900 per

gold ounce but are expected to remain within guidance for the year.

• Mine-site all-in sustaining costs (1) (“AISC”) increased to $2,641 per gold ounce, up from $2,342 per gold

ounce in Q1 2025 due to $8.2 million in planned sustaining capital expenditures related to equipment

refurbishments, capitalized stripping, and heap leach pad expansions. Increased sustaining capital for the

quarter is consistent with the Company’s commitment to re-invest into Florida Canyon in 2025 and 2026

to ensure long-term profitability. H1 2025 mine-site AISC of $2,486 per gold ounce is within the guidance

range of $2,450 to $2,550 per gold ounce.

• Operating cash flow of $16.3 million, increased from $16.1 million in Q1 2025 largely from higher metal

prices. Operating cash flow before changes in working capital (1) in the quarter was $16.6 million. Both

figures are net of the payment of income taxes, which totaled $1.7 million.

• Free cash flow(1) generation was $2.1 million, or $0.01 per share, for the quarter.

• Ended the quarter with cash and cash equivalents of $63.0 million, an increase of 3% from $61.1 million at

the end of Q1 2025.

1

(1) Refer to the “Non-GAAP Financial Measures” disclosure at the end of this news release and associated MD&A for a description and

calculation of these measures.

George Salamis, President, CEO and Director of Integra commented: “We are pleased to report consistent gold

production from Florida Canyon and positive financial results from the Company for the second quarter of 2025.

Florida Canyon continues to deliver on our expectations, generating meaningful cash flow to fund significant re-

investment into the mine, while also supporting the Company’s broader growth strategy. Integra’s growing cash

balance ideally positions the Company to complete important mine-site capital projects at Florida Canyon

including, heap leach pad expansions, capitalized stripping, growth drilling, and mining fleet additions and

enhancements. The Company plans to invest over ~$55 million into Florida Canyon this year aimed at near-term

improvements and positioning the mine for long-term growth and profitability. The focus for the remainder of

2025 continues to be capital investment and growth at Florida Canyon, permitting advancement and a feasibility

study for DeLamar, and continued de-risking activities and advanced study work at Nevada North.”

Financial and Operating Highlights

Unit abbreviations in tables: kt = thousand tonnes, g/t = grams per tonne, Au = gold, oz = troy ounce, $000s = thousands of U.S. dollars, $/sh

= U.S. dollars per share, $/oz = U.S. dollars per gold ounce, $/oz sold = U.S. dollars per gold ounce sold.

Three months ended

June 30,

Six months ended

June 30,

Operating Highlights Unit 2025 2025

Ore mined kt 3,074 6,096

Waste mined kt 2,966 4,765

Crushed ore to pad kt 1,882 3,646

Run of mine ore to pad kt 1,275 2,474

Total placed kt 3,157 6,120

Processed grade g/t 0.21 0.22

Recovery % 60.5% 60.4%

Gold produced oz 18,087 37,410

Gold sold oz 18,194 37,734

Three months ended

June 30,

Six months ended

June 30,

Financial Highlights Unit 2025 2025

Revenue $000s 61,072 118,097

Cost of sales $000s (35,862) (77,403)

Mine operating earnings $000s 25,210 40,694

Earnings for the period $000s 10,642 11,625

Earnings per share (basic) $/share 0.06 0.07

Adjusted earnings for the period(1) $000s 11,772 16,206

Adjusted earnings per share (basic)(1) $/share 0.07 0.10

Operating cash flow $000s 16,305 32,037

Operating cash flow per share (basic) $/share 0.10 0.19

Free cash flow(1) $000s 2,111 11,824

Free cash flow per share (basic) $/share 0.01 0.07

Cash costs(1) $/oz sold 1,849 1,936

Mine-site AISC(1) $/oz sold 2,641 2,486

Total AISC(1) $/oz sold 2,777 2,605

(1) Non-GAAP financial measure. Refer to the “Non-GAAP Financial Measures” section of this news release.

Financial Position June 30, 2025 December 31, 2024

Cash and cash equivalents $000s $ 63,033 $ 52,190

Working capital(1) $000s $ 60,112 $ 64,403

(1) Non-GAAP financial measure. Refer to the “Non-GAAP Financial Measures” section of this news release.

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Mining

In Q2 2025, the Company mined 3,074,440 tonnes of ore from its open pit operations at Florida Canyon, a 2%

increase compared to the 3,021,457 tonnes mined in Q1 2025. The Company also mined 2,966,291 tonnes of

waste during the quarter, resulting in a strip ratio of 0.96, up from 1,798,502 tonnes of waste and a strip ratio of

0.60 in Q1 2025. The higher strip ratio in Q2 2025 reflects increased capitalized waste stripping aligned with the

Company’s re-investment strategy at Florida Canyon, as outlined in its 2025 guidance. Mining rates increased in

Q2 2025 compared to Q1 2025, driven by improved mechanical availability of haul trucks resulting from the

addition of rental units and optimized haul routes.

In H1 2025, the Company mined a total of 6,095,897 tonnes of ore and 4,764,792 tonnes of waste, resulting in a

strip ratio of 0.78. Mining rates are expected to remain elevated in H2 2025 due to continued waste stripping in

higher pits, and increased run-of-mine (“ROM”) tonnes placed. This is consistent with the Company's full year

guidance.

Production

In Q2 2025, Florida Canyon produced 18,087 ounces of gold, compared to 19,323 ounces in Q1 2025. Q2 2025

production was lower than Q1 2025 due to a one-time efficiency improvement project that added approximately

2,000 ounces in Q1 2025. Consistent production was supported by the recovery of gold ounces placed on the

Phase IIIa heap leach pad during the first half of 2025, as well as residual ounces leached from Phase I and II heap

leach pads. During the second quarter 2025 construction of the Phase IIIb heap leach pad at Florida Canyon was

initiated, with commissioning expected in late 2025.

During H1 2025 Florida Canyon produced 37,410 ounces of gold, in line with the annual guidance of 70,000 to

75,000 gold ounces. H2 2025 will benefit from higher ounces placed as ROM tonnes increases and from improved

grades from the North Pit. Additionally, we expect continued recovery of residual ounces from Phase I and II heap

leach pads.

Average process recoveries in the quarter of 60.5% Au, were slightly improved from the 60.4% Au achieved in Q1

2025. Average process recoveries in H1 2025 of 60.4% Au, were in line with expectations.

Capital

In Q2 2025, the Company invested $14.2 million in sustaining capital, bringing total H1 2025 spending to $20.2

million. This reflects the Company's continued commitment to reinvesting in Florida Canyon through new leach

pad construction, increased capital stripping, and mobile equipment refurbishments.

The Company also invested $0.8 million in non-sustaining growth capital during both Q2 2025 and year-to-date

periods. This spending was focused on testing lateral extensions and in-pit infill drilling, as well as a nominal

amount of waste dump drilling. These expenditures are in line with the Company's 2025 guidance.

Cash Costs and Mine-site AISC

Cash costs averaged $1,849 per gold ounce in Q2 2025 and $1,936 per gold ounce for the first half of the year.

Mine-site AISC averaged $2,641 per gold ounce in Q2 2025 and $2,486 per gold ounce for H1 2025, aligning with

the Company's 2025 AISC guidance of $2,450 to $2,550 per ounce.

Exploration & Growth

In Q2 2025, the Company initiated a resource growth-focused drill program at Florida Canyon, completing

approximately 5,700 meters of drilling by the end of June. The 2025 program was originally designed for

approximately 10,000 meters of reverse circulation (“RC”) drilling focused on three key areas: (1) evaluating near-

surface oxide potential from historical waste areas; (2) expanding in-situ resources between existing open pits;

and (3) testing lateral extensions and conducting in-pit infill drilling. The program is specifically designed to

support resource and reserve growth and extend mine life at Florida Canyon. The Company intends to release an

updated mineral reserve and resource estimate and an updated life-of-mine plan in H1 2026.

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Following the initial success of the drilling, the scope of the program was expanded by approximately 6,000 meters

to a total of approximately 16,000 meters, with a focus on historical waste areas.

Program expenditures totaled $1.1 million in Q2 2025 and $1.2 million year-to-date.

Selected Q2 2025 Financial Results

Revenue

In Q2 2025, the Company sold 18,194 ounces of gold at average realized prices of $3,332 per ounce of gold

generating record revenue of $61.1 million, compared to 19,540 ounces at average realized prices of $2,888 per

ounce in Q1 2025, resulting in revenues of $57.0 million.

Net Earnings

Q2 2025 net earnings of $10.6 million, or $0.06 per share, increased compared to net earnings of $1.0 million, or

$0.01 per share in Q1 2025. Net earnings in the quarter were driven by higher realized gold prices which were

partially offset by higher taxes driven by improved profitability.

Q2 2025 adjusted earnings of $11.8 million, or $0.07 per share, increased compared to adjusted earnings of $4.4

million or $0.03 per share in Q1 2025. This increase was primarily related to $9.7 million in higher mine operating

earnings, partially offset by $2.1 million in reduced transaction and integration costs incurred and $1.2 million in

reduced unrealized losses on derivatives.

Cash Flow

In Q2 2025, cash flow generated by operating activities was $16.3 million, or $0.10 per share, an increase

compared to $15.7 million, or $0.09 per share, in Q1 2025. Operating cash flow before changes in working capital

was $16.6 million or $0.10 per share which compares to $12.3 million or $0.07 per share in Q1 2025.

During the quarter, the Company remitted $1.7 million in tax installments that will be attributable to 2025 payable

income taxes. Year-to-date tax payments also totaled $1.7 million.

During the quarter, the Company made payments of $15.0 million for mineral properties, plant and equipment

and leases of which $14.2 million was related to sustaining capital expenditures and the remainder related to non-

sustaining capital expenditures at Florida Canyon. This increased from $6.0 million of payments made for mineral

property, plant and equipment and leases in Q1 2025.

Q2 2025 free cash flow was $2.1 million, or $0.01 per share.

Financial Position

As at June 30, 2025, the Company had a cash and cash equivalent balance of $63.0 million, an increase of $1.9

million from $61.1 million at the end of Q1 2025. The Company also has $15.0 million drawn and $5.0 million

undrawn on its convertible debt facility as at June 30, 2025.

The Company’s working capital was $60.1 million on June 30, 2025, reflecting a $3.7 million decrease from March

31, 2025. This decrease was mainly due to the increase in the revaluation of the debt derivative conversion feature

and decrease in inventories, partially offset by a build-up in cash from strong operating results.

Development Projects

In Q2 2025, the Company continued to advance and de-risk its flagship development asset, the DeLamar Project

(“DeLamar”) located in Idaho. The Mine Plan of Operation for DeLamar is currently under review by the U.S.

Bureau of Land Management (“BLM”) and cooperating Federal and State agencies. A favorable Determination of

Completeness by the BLM will be followed by an environmental review of DeLamar in accordance with the

National Environmental Policy Act. The Company expects the environmental review for DeLamar to commence in

H2 2025. Concurrently, Integra will work with Federal, State and Local regulatory authorities to obtain all

necessary permits for mine construction, operations, and reclamation.

4

During the quarter, the Feasibility Study for DeLamar was further advanced with mine planning refinements, which

include optimizing pit sizing and sequencing to develop the final mine plan for the study. Operating and capital

cost estimates will be finalized following the final mine plan. The Feasibility Study results are expected to be

released in H2 2025.

During the quarter the Company also advanced the Nevada North Project (“Nevada North”), which consists of the

Wildcat Deposit (“Wildcat”) and the Mountain View Deposit (“Mountain View”). At Wildcat, metallurgical and

humidity cell testing is being completed on core gathered through previous drilling campaigns. The environmental

analysis for the Exploration Plan of Operations (“EPO”) for Wildcat is complete, indicating a Finding of No

Significant Impact (“FONSI”), and decision documentation will be complete pending a Memorandum of Agreement

with the State Historical Preservation Office and Tribal governments. The Reclamation Permit from Nevada

Division of Environmental Protection (“NDEP”) Bureau of Mining Regulation and Reclamation (“BMRR”) is also in

process and anticipated in H2 2025. Hydrological drilling at Wildcat is expected to be completed in H2 2025,

initiated under an existing approved Notice of Intent, and completed under additional pending EPO approvals.

Environmental analysis for the Mountain View EPO has also been completed. A Final Environmental Assessment is

expected to be published shortly. The NDEP BMRR Reclamation Permit is also expected to be completed

imminently.

External affairs efforts for the quarter at the Company’s development projects were focused on regional outreach

in Nevada and Idaho, along with federal engagement in Washington, D.C. Following several years of focused

engagement on various aspects of the DeLamar Project design, several stakeholder-informed refinements are

being incorporated into the Mine Plan of Operations.

Health, Safety and Environment

Integra experienced zero fatalities and zero lost time incidents in Q2 2025 and for the first six months of 2025. Two

Mine Safety and Health Administration reportable injuries occurred at Florida Canyon in Q2 2025, which brings the

year to date total to four. The 2025 total recordable incident frequency rate ("TRIFR") at Florida Canyon is 1.89.

Integra experienced zero reportable environmental spills in Q2 2025 and for the first six months of 2025. The

Company experienced zero other environmental non-compliances in Q2 2025, which leaves the total reportable

non-compliances at two for the first six months of 2025.

Financial Statements

Integra’s consolidated financial statements and management’s discussion and analysis as at and for the three and

six months ended June 30, 2025, are available on the Company’s website at www.integraresources.com, and

under the Company’s profiles on SEDAR+ at www.sedarplus.ca and EDGAR at www.sec.gov. Hard copies of the

financial statements are available free of charge upon written request to [email protected].

Q2 2025 Conference Call and Webcast Details

The Company will host a conference call and webcast on Thursday, August 14, 2025 at 11:00 AM Eastern Time /

8:00 AM Pacific Time to review its financial and operating results for the second quarter of 2025. Details for the

conference call and webcast are included below.

Dial-In Numbers / Webcast:

Conference ID: 2435675

Toll Free: (800) 715-9871

Toll: +1 (646) 307-1963

Webcast: https://events.q4inc.com/attendee/915207495

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About Integra Resources Corp.

Integra is a growing precious metals producer in the Great Basin of the Western United States. Integra is focused

on demonstrating profitability and operational excellence at its principal operating asset, the Florida Canyon Mine,

located in Nevada. In addition, Integra is committed to advancing its flagship development-stage heap leach

projects: the past producing DeLamar Project located in southwestern Idaho and the Nevada North Project located

in western Nevada. Integra creates sustainable value for shareholders, stakeholders, and local communities

through successful mining operations, efficient project development, disciplined capital allocation, and strategic

M&A, while upholding the highest industry standards for environmental, social, and governance practices.

ON BEHALF OF THE BOARD OF DIRECTORS

George Salamis

President, CEO and Director

CONTACT INFORMATION

Corporate Inquiries: [email protected]

Company website: www.integraresources.com

Office phone: +1 (604) 416-0576

Qualified Person

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”).

Non-GAAP Financial Measures

Management believes that the following non-GAAP financial measures will enable certain investors to better

evaluate the Company's performance, liquidity, and ability to generate cash flow. These measures do not have any

standardized definition under IFRS, and should not be considered in isolation or as a substitute for measures of

performance prepared in accordance with IFRS. Other companies may calculate these measures differently.

Average realized gold price

Average realized gold price per ounce is calculated by dividing the Company’s gross revenue from gold sales for

the relevant period by the gold ounces sold, respectively. The Company believes the measure is useful in

understanding the gold prices realized by the Company throughout the period. The following table reconciles

revenue and gold sold during the period with average realized prices:

Three months ended

June 30,

Six months ended

June 30,

2025 2025

Gold revenue $ 60,620 $ 117,050

Gold ounces sold during the period 18,194 37,734

Average realized gold price (per oz sold) $ 3,332 $ 3,102

6

Capital expenditures

Capital expenditures are classified into sustaining capital expenditures or non-sustaining capital expenditures

depending on the nature of the expenditure. Sustaining capital expenditures are those required to support current

production levels. Non-sustaining capital expenditures represent the capital spending at new projects and major,

discrete projects at existing operations intended to increase production or extend mine life. Management believes

this to be a useful indicator of the purpose of capital expenditures and this distinction is an input into the

calculation of AISC.

The following table reconciles payments for mineral properties, plant and equipment, and equipment leases to

sustaining and non-sustaining capital expenditures:

Three months ended

June 30,

Six months ended

June 30,

2025 2025

Payments for mineral properties, plant and equipment $ 13,004 $ 16,789

Payments for equipment leases 2,007 4,241

Total capital expenditures 15,011 21,030

Less: Non-sustaining capital expenditures (817) (817)

Sustaining capital expenditures $ 14,194 $ 20,213

Free cash flow

Free cash flow, a non-GAAP financial metric, subtracts sustaining capital expenditures from net cash provided by

operating activities, serving as a valuable indicator of our capacity to generate cash from operations post-

sustaining capital investments. The following table reconciles this non-GAAP financial measure to the most directly

comparable IFRS Accounting Standard measure:

Three months ended

June 30,

Six months ended

June 30,

2025 2025

Operating cash flow (1) $ 16,305 $ 32,037

Less: sustaining capital expenditures (14,194) (20,213)

Free cash flow $ 2,111 $ 11,824

Free cash flow per share (basic) $ 0.01 $ 0.07

Weighted average shares outstanding (basic) 168,930 168,820

Working capital

Working capital is calculated as current assets less current liabilities. The Company uses working capital as a

measure of the Company’s operational efficiency and short-term financial health.

Operating margin

Operating margin is calculated as mine operating earnings divided by revenue. The Company uses Operating

Margin as a measure of the Company's profitability. The following table reconciles this non-GAAP financial

measure to the most directly comparable IFRS Accounting Standard measure:

Three months ended

June 30,

Six months ended

June 30,

2025 2025

Revenue $ 61,072 $ 118,097

Mine operating earnings 25,210 40,694

Operating margin 41 % 34 %

7

Operating cash flow before change in working capital

The Company uses operating cash flow before change in working capital to determine the Company’s ability to

generate cash flow from operations, and it is calculated by adding back the change in working capital to operating

cash flow as reported in the consolidated statements of cash flows.

Three months ended

June 30,

Six months ended

June 30,

2025 2025

Operating cash flow (1) $ 16,305 $ 32,037

Add: change in working capital 297 (3,135)

Operating cash flow before change in working capital $ 16,602 $ 28,902

Operating cash flow per share (basic) $ 0.10 $ 0.19

Operating cash flow before change in working capital per share (basic) $ 0.10 $ 0.17

Weighted average shares outstanding (basic) 168,930 168,820

Cash costs

Cash costs are a non-GAAP financial metric which includes production costs, and government royalties.

Management uses this measure to monitor the performance of its mining operation and ability to generate

positive cash flow on a site basis.

AISC

All-in sustaining costs, a non-GAAP financial measure, starts with cash costs and includes general and

administrative costs, reclamation accretion expense and sustaining capital expenditures. Management uses this

measure to monitor the performance of its mining operation and ability to generate positive cash flow on an

overall company basis.

Cash costs and AISC are calculated as follows:

Three months ended

June 30,

Six months ended

June 30,

2025 2025

Production costs $ 28,299 $ 62,781

Royalties and excise taxes 4,185 7,917

Fair value adjustment to production costs on sale of acquired inventories 1,615 3,385

Less: Silver revenue (452) (1,047)

Total cash costs 33,647 73,036

Reclamation accretion expense 210 567

Sustaining capital expenditures 14,194 20,213

Mine-site AISC $ 48,051 $ 93,816

General and administrative expenses $ 1,862 $ 3,536

Total AISC $ 49,913 $ 97,352

Gold ounces sold (oz) 18,194 37,734

Cash costs (per Au sold) $ 1,849 $ 1,936

Mine-site AISC (per Au sold) $ 2,641 $ 2,486

AISC (per Au sold) $ 2,777 $ 2,605

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