Integra Resources Corp. announced drill results from 21 additional drill holes, representing 1,180 meters, from the stockpile drill program at the DeLamar Project ("DeLamar" or the "Project") located in southwestern Idaho. 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 ("PFS"). Drilling Highlights: The latest drilling highlights from DeLamar (North DeLamar, Stockpile 1 and 2) include: NDM-23-046: 0.29 grams per tonne ("g/t") gold ("Au") and 18.72 g/t silver ("Ag") (0.53 g/t gold equivalent ("AuEq")) over 120.40 m; NDM-23-018: 0.22 g/t Au and 17.46 g/t Ag (0.45 g/t AuEq) over 74.68 m; NDM-22-164: 0.24 g/t Au and 18.86 g/t Ag (0.,48 g/t AuEq). NDM-23-022: 0.26 g/t Au and 14.20 g/t Ag (0.44 g/t AuEq") over 73.15 m; The latest drilling highlights from Florida Mountain (Jacobs Gulch) include: JG-23-080: 0.60 g/t Au and 10.50 g/t Ag (0".74 g/t AuEq), over 53.34 m, including 8.91 g/t Au and 6.55 g/t Ag (9.00 g/t AuEq); JG-23-040: 0.32 g/t Au and 10.,33 g/t Ag (0.'t AuEq) over 32.00 m; JG-23-146: 0.36 g/t Au and 6.,76 g/t Ag (0 the45 g/t AuEQ) over 33.53 m. The drill results announced continue to demonstrate excellent gold equivalent grade and drill intercept widths with strong continuity throughout the stockpile and backfill mineralized material.

The Company has released 176 drill holes of the 321 drill holes completed during the 12,588 m stockpile drill program which was completed in April 2023. Integra intends to release an updated mineral resource estimate for DeLamar in third quarter 2023 which will include the stockpile and backfill mineralized material; In fourth quarter 2023, the Company plans on submitting the Mine Plan of Operations at DeLamar, which represents a major de-risking milestone for the Project.