Integra Advances DeLamar Financing & Procurement Before 2027 Record of Decision

• Integra Resources appointed GenCap Mining Advisory to help evaluate and structure potential financing alternatives for the DeLamar Gold-Silver Project in Idaho.
• Principal long-lead equipment purchases are targeted for the end of 2026, including the Merrill-Crowe plant, crushing facility, and electrical equipment.
• The Environmental Impact Statement and Record of Decision are targeted for the second half of 2027, with a Final Investment Decision to follow.
• A crushing pilot plant has processed approximately 39,000 tons of historical backfill to validate and test crushing assumptions in the Feasibility Study (FS).
• The December 2025 FS outlined an after-tax net present value of US$774 million and initial capital of approximately US$389 million.

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.

DeLamar Workstreams Run in Parallel Ahead of a 2027 Decision

Integra Resources updated progress at the DeLamar Gold-Silver Project in southwestern Idaho. Since completing the Feasibility Study (FS) in December 2025, the company has advanced detailed engineering, procurement, site infrastructure, permitting, and financing preparations to reduce execution risk in permissible areas. A Final Investment Decision (FID) is targeted to follow publication of the Environmental Impact Statement (EIS) and Record of Decision (RoD) in the second half of 2027.

President, Chief Executive Officer and Director of Integra, George Salamis, described how the work is being sequenced:

"Engineering, procurement, state of good repair work, permitting and financing activities are advancing in parallel so that, subject to receipt of the required permits and a positive FID, we are positioned to transition efficiently towards a potential construction decision."

The FS outlined average production of approximately 119,000 gold-equivalent ounces annually in years 1 through 5 and 106,000 gold-equivalent ounces annually over the life of mine. It estimated initial capital of approximately US$389 million, an after-tax net present value of US$774 million and an after-tax internal rate of return of 46%, at base case prices of US$3,000 per ounce gold and US$35 per ounce silver.

GenCap Appointed as DeLamar Project Financing Advisor

Integra appointed GenCap Mining Advisory (GenCap), a fully independent advisory firm with expertise in capital markets and credit and debt advisory for the global metals and mining industry, to assist Integra in evaluating and structuring potential financing alternatives. The early start is intended to let Integra assess multiple sources of capital and settle a financing strategy well ahead of a potential FID.

Chief Financial Officer of Integra, Andrée St-Germain, described what the engagement is meant to achieve:

"Securing a well-matched financing package is critical to our long-term success, and GenCap's proven track record in structuring and executing mine project financing will help us evaluate the full range of financing opportunities and select the best path forward for the Project."

Long-Lead Orders Target the End of 2026 as Detailed Engineering Advances

Ausenco Engineering USA South Inc. was appointed lead engineering partner in June 2026, with SLR Consulting retained for heap leach engineering, metallurgy and mine planning. Work to date covers heap leach pad design at Florida Mountain and DeLamar, water treatment plant plans, and basic engineering for on-site diesel power generation and battery storage, which would allow mine operations while Idaho Power Company (IPC) upgrades its distribution infrastructure.

Integra is in vendor evaluation and commercial negotiations and is targeting its principal long-lead purchases by the end of 2026, with orders planned for the Merrill-Crowe plant, crushing facility, and electrical equipment. According to Integra, Merrill-Crowe is more efficient than a conventional carbon adsorption circuit at extracting the silver present in DeLamar material.

Integra has an agreement with IPC for long-lead equipment tied to the renewal of IPC's plant and equipment, and is targeting a subsequent agreement by the end of 2026 for construction of the electrical power supply upgrades. The phased upgrades would raise available power to approximately 6 megawatts by 2030.

Permitting & Pilot Plant Testing Continue

The US Bureau of Land Management (BLM) published the Notice of Intent for the National Environmental Policy Act review in May 2026, and public scoping concluded in June 2026. BLM posted the Public Comment Scoping report on September 21, 2026, and Integra is working with BLM to review the comments ahead of the EIS and RoD. The company was selected for the federal FAST-41 Transparency Project Program in January 2026. Baseline data collection continues across the 13,425-acre Mine Plan of Operation boundary, and by the end of 2026, Integra will have collected 5 years of baseline work at the Project.

A crushing pilot plant mobilized in July 2026 has processed approximately 39,000 tons of historical backfill material from the DeLamar and Florida Mountain open pits. Testing of the primary mineral sizer is nearing completion, and Integra has mobilized a double roll crusher for the secondary crushing phase. Both phases are designed to validate FS assumptions and inform the final crushing circuit design.

Site Repairs Continue

Integra completed upgrades to the project access bridge to restore creek banks and reduce erosion, and it targets completion of a truck shop refurbishment in 2027. The company also plans to build 2 communication towers to improve the on-site radio network.

Next Steps

• By the end of 2026: principal long-lead purchases, a subsequent IPC agreement for power supply construction, and 5 years of baseline work collected at the Project.
• 2027: completion of the truck shop refurbishment.
• Second half of 2027: publication of the EIS and RoD, followed by a potential FID.
• By 2030: approximately 6 megawatts of available power through the phased IPC upgrades.

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