Integra Resources

Please refer to the Non-GAAP Financial Measures section of this MD A for detailed descriptions and reconciliations of the following metrics to their most comparable GAAP equivalents Average realized gold price Adjusted earnings adjusted earnings per share Sustaining and non-sustaining capital expenditures Free cash flow free cash flow per share (basic) Working capital Operating margin Operating cash flow before change in working capital operating cash flow before change in working capital per share (basic) Operating cash flow per share (basic) Cash costs Mine-site all-in sustaining costs ( Mine-site AISC ) All-in sustaining costs ( AISC ) 2.

SEC original ↗Integra Resources — Earnings release (6-K exhibit)EX-99Aug 11, 2026

The Company is also revising its 2026 total cash costs per ounce guidance to reflect the cost drivers impacting Mine-site AISC, and its 2026 non-sustaining capital expenditures guidance to reflect improvements included in the Technical Report including advancing heap leach pad construction which was originally planned for future years.

SEC original ↗Integra Resources — Earnings release (6-K exhibit)EX-99Aug 11, 2026

The Company has revised 2026 guidance as follows Unit (1) Original Guidance Range Change Revised Guidance Range Florida Canyon Mine 2026 Total Cash Cost (2) $ oz sold $1,900 - $2,100 $400 $2,300 - $2,500 2026 Mine-Site All-In Sustaining Costs ( AISC ) (2) $ oz sold $2,750 - $2,950 $550 $3,300 - $3,500 2026 Non-Sustaining (Growth) Capital Expenditures $m $7.5 - $9.5 $9 $16.5 - $18.5 (1) Unit abbreviations oz troy ounce, $ oz sold U.

SEC original ↗Integra Resources — Earnings release (6-K exhibit)EX-99Aug 11, 2026

The Company expects investments in sustaining capital expenditures to continue into the third quarter.

SEC original ↗Integra Resources — Earnings release (6-K exhibit)EX-99Aug 11, 2026

The decrease in both the quarterly and year-to-date period is primarily attributed to debt interest expenses recognized in 2025 with no amounts in the current period due to the conversion of the Convertible Facility in December of 2025, partially offset by increased lease interest expenses in the current year, largely from the Company's continued investment in financed equipment at Florida Canyon.

SEC original ↗Integra Resources — Earnings release (6-K exhibit)EX-99Aug 11, 2026

14 Management Discussion and Analysis For the three and six months ended June 30, 2026 and 2025 (All amounts are in USD with tabular amounts in thousands of USD) Capital expenditures Capital expenditures are classified into sustaining capital expenditures or non-sustaining capital expenditures depending on the nature of the expenditure.

SEC original ↗Integra Resources — Earnings release (6-K exhibit)EX-99Aug 11, 2026

Description of Business Integra is a growing Canadian-based precious metals producer headquartered in Vancouver, BC and is focused on gold mining, mine development and mineral exploration activities in the Great Basin of the Western United States.

SEC original ↗Integra Resources — Earnings release (6-K exhibit)EX-99Aug 11, 2026

5 Management Discussion and Analysis For the three and six months ended June 30, 2026 and 2025 (All amounts are in USD with tabular amounts in thousands of USD) Integra has an ongoing initiative to increase its asset base by expanding current Mineral Resource and Reserve Estimates, acquiring, discovering and developing high value precious metal projects, and ultimately operating multiple precious metals mines in the Americas.

SEC original ↗Integra Resources — Earnings release (6-K exhibit)EX-99Aug 11, 2026

This drill program includes 42,500 m of drilling at Florida Canyon focused on near-mine oxide growth gold targets to expand mineral reserves and resources and the first exploration drill program at the past-producing Standard Mine area, located approximately 10km south of Florida Canyon.

SEC original ↗Integra Resources — Earnings release (6-K exhibit)EX-99Aug 11, 2026

Continued advancement of the resource growth drilling program at Florida Canyon in Q2 2026, progressing the multi-year growth strategy designed to expand mineral reserves and resources.

SEC original ↗Integra Resources — Earnings release (6-K exhibit)EX-99Aug 11, 2026

The blending strategy developed in the first quarter of 2026 for N2 ore continues to leach as expected.

SEC original ↗Integra Resources — Earnings release (6-K exhibit)EX-99Aug 11, 2026

Legal Proceedings Alio Gold Inc ( Alio ), a subsidiary of the Company since November 8, 2024, received a Notice of Civil Claim in May 2019 from a former shareholder of Rye Patch Gold Corp ( Rye Patch ) whose shares were acquired by Alio.

SEC original ↗Integra Resources — Presentation / slide deck (6-K exhibit)EX-99Aug 11, 2026

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.

SEC original ↗Integra Resources — Earnings release (6-K exhibit)EX-99Aug 11, 2026

Risks and Uncertainties 18 14.

SEC original ↗Integra Resources — Earnings release (6-K exhibit)EX-99Aug 11, 2026

Risks and Uncertainties The Company is subject to a number of risks and uncertainties due to the nature of its business.

SEC original ↗Integra Resources — Earnings release (6-K exhibit)EX-99Aug 11, 2026

Forward-looking statements necessarily involve known and unknown risks 11 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.

SEC original ↗Integra Resources — Earnings release (6-K exhibit)EX-99Aug 11, 2026

The Company's operating cash flows are mostly independent of changes in market interest rates, which is impacted by economic uncertainties and inflation expectations.

SEC original ↗Integra Resources — Presentation / slide deck (6-K exhibit)EX-99Aug 11, 2026