Integra Resources Corp. announced drill results from 20 additional drill holes, representing 4,960 meters (“m”), from the recently completed stockpile drill program at the DeLamar Project (“DeLamar” or the “Project”) located in southwestern Idaho. The Company is also pleased to provide a corporate update regarding several of its properties located in western Nevada, which were acquired as part of the merger with Millennial Precious Metals Corp.

The stockpile drill program at DeLamar was designed to test a large portion of the estimated 60 million tonnes (“Mt”) of mineralized material that was stockpiled and/or used as backfill at the Project. The Company believes that additional oxide-and-mixed material from the stockpiles and backfill at DeLamar has the potential to significantly increase the heap leach mine life of the Project in future phases and further bolster the robust economics presented in the Company's 2022 Pre-feasibility Study. The NDM stockpile cross section demonstrates the strong grade continuity within the mineralized stockpiles, with consistent grades above the heap leach cut-off grade.

Assays are pending for drill holes NDM-23-146 and NDM-23-046, however, the Company expects the results to be in line with the other drilling completed at the NDM stockpile. The NDM stockpile is estimated to contain approximately 16 Mt of the approximate 60 Mt of mineralized material that was stockpiled and/or used as backfill by previous operators. Drill spacing is completed at 60 m with some areas drilled at 30 m spacing to further confirm continuity.

The stockpile drilling, along with additional drilling that occurred after the last resource estimate cut-off date, will be included in an updated resource estimate at the Project. Cyanide shake analysis is not performed on Florida Mountain samples as gold occurrences in Florida Mountain material can often be coarse in nature, making comparisons between cyanide shake analyses and fire assays unreliable. Once pulverized, as per any cyanide shake procedure, all Florida Mountain material show high recoveries by cyanidation, rendering cyanide shake analysis unreliable for differentiating between ores that can be heap leached and those requiring grinding to achieve high recoveries.

On June 6, 2023, the Company completed the final land payment of USD 2.5 million to Clover Nevada LLC, a private company controlled by Waterton Precious Metals Fund II Cayman, LP (“Waterton”), to complete the acquisition of the Wildcat Property, the Mountain View Property, the Ocelot Property, the Dune Property, the Eden Property, and the Marr Property (together, the “Nevada Properties”). Following completion of the final payment, Waterton's deed of trust encumbering the Nevada Properties was released and title now resides with the Integra subsidiaries.