Mr. George Salamis reports

INTEGRA ANNOUNCES SUBMISSION OF REVISED DELAMAR MINE PLAN OF OPERATIONS AND APPOINTS U.S. AIR FORCE LIEUTENANT GENERAL (RET.) LEONARD KOSINSKI AS BOARD ADVISOR

Integra Resources Corp. has completed the formal submission of the updated mine plan of operations (MPO) to the U.S. Bureau of Land Management (BLM) for the DeLamar project, located in southwestern Idaho, United States. This important regulatory milestone marks the initiation of the federal permitting process under the National Environmental Policy Act (NEPA) and represents a major achievement in the advancement of DeLamar.

In parallel with the submission of the MPO, Integra is pleased to announce the appointment of Leonard (Leo) Kosinski, U.S. Air Force Lieutenant-General, three-star (retired), as a strategic board adviser. Mr. Kosinski brings over three decades of high-ranking military, governmental and international leadership experience that will support the company's growing engagement with federal stakeholders as permitting and development activities accelerate at DeLamar.

Integra would also like to recognize the executive order (EO) published by the federal administration on March 20, 2025, titled "Immediate Measures to Increase American Mineral Production." The EO calls for streamlined permitting timelines, enhanced federal permitting co-ordination and strategic investment into domestic mineral supply chains. Continued government support for domestic minerals projects comes at a crucial time for Integra as federal permitting efforts officially begin for DeLamar.

George Salamis, president, chief executive officer and director of Integra, commented: "The submission of the updated MPO is a crucial moment for Integra and the future of the DeLamar gold-silver project in Idaho. This marks the official start of the federal mine permitting process and demonstrates our commitment to advancing DeLamar in a responsible, transparent and timely manner. We believe the enhanced project design reflected in the MPO positions Integra as a leading candidate to benefit from the evolving, progressive and supportive permitting landscape that is occurring at both federal and state levels. At this time we are also extremely honoured to welcome Lt.-Gen. Kosinski as an adviser to the company. His deep experience in U.S. federal operations, relationships with senior levels of government, and direct insights into energy security and industrial base resilience will be invaluable as we advance DeLamar through permitting over the next two years. We are thrilled to have Leo on board and look forward to the guidance he will bring as we align our project with national priorities in the U.S."

Updated MPO submission -- a major step forward for DeLamar

The submission of the updated MPO to the BLM initiates the pathway to the issuance of a notice of intent (NOI), which is a formal announcement of BLM's intent to prepare an environmental impact statement (EIS) to evaluate the potential environmental effects of the proposed action. The NOI is followed by a scoping process, which includes engagement with federal, state and local agencies and the general public. Once the EIS is formally scoped, the BLM will conduct environmental impact analysis for the proposed action as well as reasonable alternatives to the proposed action. Through this alternatives evaluation process, refinements to the MPO may be identified that reduce environmental impacts. A draft EIS (DEIS) will publish the results of the BLM's environmental analysis and will be open to public comment for a minimum of 45 days. Public comments on the DEIS will be addressed by the BLM in the final EIS (FEIS) and accompanying record of decision document, which may include BLM-proposed measures to mitigate environmental impacts. The BLM's environmental analysis under NEPA (NOI to FEIS) is anticipated to span two years and is a rigorous, transparent and prescriptive permitting framework that guides federal review of mining projects on public lands. Federal permitting will be complemented by a host of equally robust permits from multiple Idaho state agencies that serve to protect the quality of Idaho's air, water and land.

Integra's updated MPO for DeLamar reflects a significantly optimized and environmentally enhanced mine plan, including a more compact project footprint and design modifications aimed at reducing projected carbon emissions and water usage. These improvements were developed through extensive technical analysis, stakeholder engagement and a focus on the integration of modern sustainable mining practices.

Appointment of Mr. Kosinski as board adviser

To strengthen Integra's federal government engagement and strategic advisory capacity during this critical permitting period, the company is pleased to welcome Mr. Kosinski as a strategic board adviser.

Mr. Kosinski recently served as director for logistics on the joint staff at the U.S. Department of Defense and the Pentagon, where he oversaw global logistics, energy and climate planning, deployment operations, and industrial base co-ordination. His prior roles include deputy commander of U.S. Air Forces Japan and director of logistics for U.S. Africa Command, where he was responsible for operations across 53 nations. With over 31 years of military and international leadership experience, including multiple postings in Washington, D.C., Europe and Asia, Mr. Kosinski brings a wealth of knowledge in navigating complex government environments, executing strategic infrastructure projects and advancing policy goals across multiple agencies.

The addition of Mr. Kosinski brings immense and immediate strategic benefit to the company as federal permitting begins for DeLamar.

Immediate Measures to Increase American Mineral Production executive order

Integra welcomes the recent EO signed by the federal administration, on March 20, 2025. The EO, titled "Immediate Measures to Increase American Mineral Production," calls for accelerated permitting timelines, enhanced federal permitting co-ordination and strategic investment into domestic mineral supply chains. As stated in the EO, permitting bottlenecks for upstream resource projects represent a national security and economic risk that must be addressed immediately. The EO targets specific initiatives, including streamlining permitting, re-evaluating land access, clarifying the Mining Act, mobilizing capital, and strategic stockpiling and procurement for domestic minerals.

Additional details on the recently signed EO can be found on the official White House website.

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 (mergers and acquisitions) while upholding the highest industry standards for environmental, social and governance practices.

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