Integra Resources Corp. (TSX-V: ITR) (NYSE: ITRG) is pleased to provide an interim operational update for the first quarter ended March 31, 2025. The Company plans to release its first quarter 2025 financial results after market close on Wednesday, May 14, 2025.

(All amounts in U.S. dollars as at March 31, 2025, unless otherwise stated)

First Quarter 2025 Florida Canyon Mine Operational Update

The Florida Canyon Mine produced 19,323 ounces of gold and sold 19,540 ounces of gold during the first quarter 2025. Gold production exceeded expectations, partly due to the recovery and processing of approximately 2,000 ounces of previously unrecovered gold confined within an electrowinning tank as part of a one-time efficiency improvement project. Strong gold production was further supported by the continued ramp-up of solution flow rates through the heap leach pads and new carbon-in-column circuit commissioned in late 2024.

Unit abbreviations: kt = 1,000 metric tonnes, g/t = grams per tonne, Au = gold, oz = troy ounce

First Quarter 2025 Financial Position

Unit abbreviations: $m = millions of U.S. dollars

Full financial results for the first quarter 2025 will be reported and filed on Integra’s profile on SEDAR+ at www.sedarplus.ca and EDGAR profile at www.sec.gov on Wednesday, May 14, 2025.

About Integra Resources

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.

Qualified Person

The scientific and technical information contained in this news release has been reviewed and approved by Raphael Dutaut (Ph.D., P.Geo, OGQ Membership 1301), Integra’s Vice President, Geology and Mining. Mr. Dutaut is a “qualified person” as defined in National Instrument 43- 101 – Standards of Disclosure for Mineral Projects (“NI 43-101”).

Non-IFRS Measures

The Company has included certain performance measures in this news release which are not specified, defined, or determined under generally accepted accounting principles (in the Company’s case, International Financial Reporting Standards (“IFRS”)). These are common performance measures in the gold mining industry, but because they do not have any mandated standardized definitions, they may not be comparable to similar measures presented by other issuers. Accordingly, the Company uses such measures to provide additional information, and you should not consider them in isolation or as a substitute for measures of performance prepared in accordance with generally accepted accounting principles. In this section, all currency figures in tables are in thousands, except per-share and per-ounce amounts.

Working Capital

Working capital for the period calculated by subtracting current assets from current liabilities.