Mr. Jason Kosec reports

INTEGRA INTERSECTS 4.07 G/T AUEQ OVER 41 M AND 0.91 G/T AUEQ OVER 157 M IN METALLURIGICAL DRILL PROGRAM AT DELAMAR

Integra Resources Corp. has released the first set of drill results from the 4,597-metre 2023 highwall geotechnical and metallurgical drill program at the DeLamar project located in southwestern Idaho. The results announced today include 10 drill holes representing 1,376 m from the drill program.

The highwall geotechnical and metallurgical drill program was completed in November, 2023. The material from this drill program will be used for comprehensive analysis, including mineralogical characterization and crusher work index (CWI) testing, as well as bottle roll, permeability and column leach test work to better understand characteristics for future heap leach mining. In addition, geotechnical drilling was completed in the proposed open pits at the project to evaluate the stability of highwalls and to provide more information for the 3-D geotechnical model. The drill program was completed in support of the draft mine plan of operations (MPO) and to gather additional data for a future feasibility study on the project.

Drilling highlights:

• The latest drilling highlights from the DeLamar deposit include:
  • DH-DLM-23-MET22: 0.76 gram per tonne gold and 257.43 g/t silver (4.07 g/t gold equivalent) over 41.45 m;
  • DM-23-MET-P11: 0.40 g/t Au and 21.58 g/t Ag (0.67 g/t AuEq) over 54.86 m.
• The latest drilling highlights from the Florida Mountain deposit include:
  • DH-FLM-23-MET03: 0.74 g/t Au and 13.28 g/t Ag (0.91 g/t AuEq) over 157.43 m;
  • DH-FLM-23-MET04: 0.91 g/t Au and 13.46 g/t Ag (1.09 g/t AuEq) over 69.50 m;
  • DH-FLM-23-MET13: 0.54 g/t Au and 6.62 g/t Ag (0.63 g/t AuEq) over 99.97 m.
• The drill results announced today demonstrate the strong continuity of mineralization at DeLamar, including multiple drill holes with mineralization beginning at surface.

Integra's president, chief executive officer and director, Jason Kosec, commented: "The drill results announced today come from a program primarily designed to collect additional gold-silver mineralized material for metallurgical and geotechnical testing. Intersecting significant widths of mineralization in metallurgical and geotechnical drilling demonstrates the strong resource continuity at DeLamar. Furthermore, mineralization beginning at surface in multiple drill holes highlights the low strip ratio at the project with minimal waste or overburden sitting above in situ resource. With the MPO submitted to the Bureau of Land Management in December, 2023, DeLamar is one of the few precious metal projects in the U.S. which is entering the National Environmental Policy Act permitting phase and actively being advanced towards a production decision."

Detailed drill results

The attached table highlights selected intercepts from the 2023 DeLamar deposit drill program announced today.

The attached table highlights selected intercepts from the 2023 Florida Mountain deposit drill program announced today.

Sampling and quality assurance/quality control procedure

Thorough QA/QC protocols are followed on the project, including insertion of duplicate, blank and standard samples in the assay stream for all drill holes. The samples are submitted directly to American Assay Labs in Reno, Nev., for preparation and analysis. Analysis of gold is performed using fire assay method with atomic absorption (AA) finish on a one-assay-ton aliquot. Gold results over five g/t are rerun using a gravimetric finish. Silver analysis is performed using inductively coupled plasma for results up to 100 g/t on a five-acid digestion, with a fire assay, gravimetric finish for results over 100 g/t silver.

Qualified person

The scientific and technical information contained in this news release has been reviewed and approved by Dr. Raphael Dutaut, PhD (PGeo), Integra's vice- president, exploration. Dr. Dutaut is a qualified person 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 NI 43-101 and is available under the company's profile on 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, comprising 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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