Integra Files Florida Canyon Feasibility Study & Updated Life-of-Mine Plan

• Integra Resources has filed a feasibility study and updated life-of-mine plan for its producing Florida Canyon gold mine in Pershing County, Nevada.
• Proven and Probable Mineral Reserves increased 74% to 1.19 million ounces of gold, supporting an 8-year operating mine life.
• Average annual gold production rises 17% to approximately 82,000 ounces during active mining, with approximately 685,000 ounces of gold sold over the life of mine.
• The plan outlines approximately US$0.8 billion in after-tax free cash flow and a base-case after-tax net present value at a 5% discount (NPV5%) of US$601 million.
• Site-level all-in sustaining costs (AISC) are expected to average approximately US$2,331 per ounce.
• Cash flow from the enhanced mine plan is expected to support the advancement of the DeLamar and Nevada North projects.

Company Overview

Integra Resources (TSXV: ITR | NYSE American: ITRG) is a precious metals producer operating in the Great Basin of the western United States. Its principal operating asset is the producing Florida Canyon Mine in Nevada, and its development pipeline comprises the past-producing DeLamar Project in southwestern Idaho and the Nevada North Project in western Nevada.

Feasibility Study & Technical Report Filing

Integra Resources has filed a feasibility study technical report and updated life-of-mine plan for the operating Florida Canyon Mine in Pershing County, Nevada. The report is dated July 28, 2026, with an effective date of May 31, 2026, and Global Resource Engineering Ltd. acted as lead author and consultant.

The updated report was informed by nearly 2 years of operating experience and a comprehensive review of the mine's historical performance and cost structure. The filing follows the company's earlier news release in June 2026, which outlined the feasibility study and life-of-mine plan results.

Mineral Reserves & Mine Life

The updated plan reflects a materially larger reserve base at Florida Canyon. Proven and Probable Mineral Reserves increased 74% to 1.19 million ounces of gold.

The expanded reserves support an 8-year operating mine life. Active mining is followed by 2 years of residual leaching, beginning in 2033.

Production & Project Economics

Florida Canyon is projected to produce more gold each year over a longer operating period. Average annual gold production rises 17% to approximately 82,000 ounces during active mining, with approximately 685,000 ounces of gold sold across the life of mine.

The plan outlines approximately US$0.8 billion in after-tax free cash flow and a base-case after-tax net present value at a 5% discount (NPV5%) of US$601 million. The net present value is discounted to January 1, 2026, and includes cash flows from January 1, 2026, to May 31, 2026. It is based on gold prices of US$4,344 per ounce in 2026, US$4,414 per ounce in 2027, US$4,169 per ounce in 2028, US$3,824 per ounce in 2029, and US$3,600 per ounce from 2030 to 2035.

Site-level all-in sustaining costs (AISC) are expected to average approximately US$2,331 per ounce, reflecting a larger, longer-life operation with higher annual production and lower long-term operating costs. Free cash flow and AISC are non-GAAP financial measures that do not have a standardised meaning under International Financial Reporting Standards and should not be considered in isolation.

Funding the Development Pipeline

The enhanced mine plan is expected to generate significant cash flow to support the advancement of Integra's development projects. That pipeline comprises the past-producing DeLamar Project in southwestern Idaho and the Nevada North Project in western Nevada, both of which are development-stage heap-leach projects.

Next Steps

The full technical report is available for review under the company's profile on SEDAR+ and EDGAR, as well as on the Integra website.

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