Originally published on Integra Resources

Vancouver, British Columbia – Integra Resources Corp. (“Integra” or the “Company”) (TSXV: ITR; NYSE American: ITRG) is pleased to announce the first set of drill results from the 4,597 meter (“m”) 2023 highwall geotechnical and metallurgical drill program at the DeLamar Project (“DeLamar” or the “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 testwork 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 high walls and to provide more information for the 3D 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 grams per tonne (“g/t”) gold (“Au”) and 257.43 g/t silver (“Ag”) (4.07 g/t gold equivalent (“AuEq”)) 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, CEO & 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 USA which is entering the National Environmental Policy Act permitting phase and actively being advanced towards a production decision.”

Detailed Drill Results

The following table highlights selected intercepts from the 2023 DeLamar Deposit drill program announced today^1,2,3,4:

1. Downhole thickness is true thickness.
2. Intervals reported are uncapped.
3. AuEq = g/t Au + (g/t Ag ÷ 77.70). Rounding may cause minor discrepancies in the AuEq column.
4. Certain intervals were not sampled because they were utilized for alternative purposes requiring intact core (i.e. – geotechnical analysis, additional metallurgical tests). These unsampled intervals (~1% of the total program footage) have been replaced by ‘zero grade’ for the purposes of this news release.

The following table highlights selected intercepts from the 2023 Florida Mountain Deposit drill program announced today^1,2,3,4:

1. Downhole thickness is true thickness.
2. Intervals reported are uncapped.
3. AuEq = g/t Au + (g/t Ag ÷ 77.70). Rounding may cause minor discrepancies in the AuEq column.
4. Certain intervals were not sampled because they were utilized for alternative purposes requiring intact core (i.e. – geotechnical analysis, additional metallurgical tests). These unsampled intervals (~1% of the total program footage) have been replaced by ‘zero grade’ for the purposes of this news release.

Follow the link below to view drill collar location maps for the DeLamar Deposit drill program:
https://integraresources.com/site/assets/files/2572/dc_del_nr_-_full_extent.pdf

Follow the link below to view drill collar location maps for the Florida Mountain Deposit drill program:
https://integraresources.com/site/assets/files/2572/dc_flom_nr_-_full_extent.pdf

Sampling and QA/QC 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, Nevada for preparation and analysis. Analysis of gold is performed using fire assay method with atomic absorption (“AA”) finish on a 1 assay ton aliquot. Gold results over 5 g/t are re-run using a gravimetric finish. Silver analysis is performed using ICP for results up to 100 g/t on a 5-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 Raphael Dutaut, Ph.D (P.Geo), Integra’s Vice President, 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 NI 43-101 and is available under the Company’s profile at www.sedarplus.ca

About Integra Resources

Integra is one of the largest precious metals exploration and development companies in the Great Basin of the Western USA. 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, comprised 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 USA focused mid-tier gold and silver producer.

Cautionary Note for U.S. Investors Concerning Mineral Resources and Reserves

NI 43-101 is a rule of the Canadian Securities Administrators which establishes standards for all public disclosure an issuer makes of scientific and technical information concerning mineral projects. Technical disclosure contained in this news release has been prepared in accordance with NI 43-101 and the Canadian Institute of Mining, Metallurgy and Petroleum Classification System. These standards differ from the requirements of the U.S. Securities and Exchange Commission (“SEC”) and resource information contained in this news release may not be comparable to similar information disclosed by domestic United States companies subject to the SEC’s reporting and disclosure requirements.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.