Mr. Jason Kosec reports

INTEGRA ANNOUNCES SALE OF 1.5% ROYALTY INTEREST IN DELAMAR PROJECT TO WHEATON PRECIOUS METALS FOR CASH CONSIDERATION OF US$9.75 MILLION

Integra Resources Corp., through its wholly owned subsidiary, DeLamar Mining Company, has entered into a binding agreement with Wheaton Precious Metals (Cayman) Co., a wholly owned subsidiary of Wheaton Precious Metals Corp., pursuant to which Wheaton will acquire a 1.5-per-cent net smelter returns (NSR) royalty on metal production from all claims of the DeLamar and Florida Mountain deposit (together, DeLamar) for an aggregate cash purchase price of $9.75-million (U.S.), to be paid in two instalments. The first instalment of $4,875,000 (U.S.) is expected to be received by Integra upon closing of the transaction. The second instalment of $4,875,000 (U.S.) is expected to be received by Integra four months from the date of the first instalment. Each instalment is subject to certain closing conditions.

The transaction is expected to close on or about March 5, 2024, pursuant to which Wheaton will pay the first instalment of $4,875,000 (U.S.). The net proceeds from the transaction will be used for the continued development of DeLamar, including work to support a feasibility study and the advancement of the National Environmental Policy Act (NEPA) permitting process in the United States.

Auramet International Inc. has acted as an adviser to the company with respect to the transaction.

Jason Kosec, Integra's president, chief executive officer and director, commented: "We are very pleased to announce this transaction with Wheaton, representing a significant endorsement for our flagship DeLamar project. This royalty sale is an attractive form of financing, particularly given the current capital market conditions. The proceeds from the royalty sale will allow Integra to continue to advance DeLamar, one of only a few projects in the Western U.S. entering the NEPA permitting process. This transaction significantly strengthens Integra's position in the Great basin as a multiasset developer with a pathway to becoming a leading U.S.-focused gold and silver producer."

Randy Smallwood, Wheaton Precious Metals, president and chief executive officer, commented: "Wheaton is pleased to grow our existing partnership with Integra to support the development of the DeLamar project, a past-producing, low-cost operation located in a prolific mining jurisdiction. We believe that strong economics, significant upside potential and Integra management's track record of success positions the company well to continue derisking activities and, ultimately, advance DeLamar into production, and we are excited to help them achieve their goals."

Beedie Capital credit facility

In connection with the closing of the transaction, the company has entered into an amendment (the third supplemental credit agreement) to the credit agreement dated July 28, 2022, as amended, with Beedie Investments Ltd. (Beedie Capital), pursuant to which, among other items, Beedie Capital has consented to the transaction and the parties have amended the participation rights afforded to Beedie Capital with respect to future equity financings under the credit agreement.

A copy of the third supplemental credit agreement will be filed by the company under the company's SEDAR+ profile.

Qualified person

The scientific and technical information contained in this news release has been reviewed and approved by Raphael Dutaut, PhD (PGeo), Integra's vice-president of exploration. Mr. Dutaut is a qualified person (QP) as defined in National Instrument 43-101 -- Standards of Disclosure for Mineral Projects.

DeLamar project overview

The past-producing DeLamar project, which includes the adjacent DeLamar and Florida Mountain gold and silver deposits, is located in Owyhee county in southwest Idaho. Since acquiring the project in 2017, the company has demonstrated significant resource growth and conversion, while demonstrating robust economic studies in its maiden preliminary economic assessment and preliminary feasibility study. An independent technical report for the DeLamar project has been prepared in accordance with the requirements of National Instrument 43-101 and is available under the company's profile at SEDAR+.

About Integra Resources Corp.

Integra is one of the largest precious metals exploration and development companies in the Great basin of the western United States. Integra is currently focused on advancing its two flagship oxide heap leach projects: the past-producing DeLamar project located in southwestern Idaho; and the Nevada North project, composed of the Wildcat and Mountain View deposits, located in northwestern Nevada. The company also holds a portfolio of highly prospective early-stage exploration projects in Idaho, Nevada and Arizona. Integra's long-term vision is to become a leading U.S.-focused mid-tier gold and silver producer.

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