Integra Reports Thickest Gold-Silver Zone to Date at Sullivan Gulch: 1.66 g/t AuEq Over 397 m, Expands Continuity of New High-Grade Structure at Sullivan Gulch With 9.00 g/t Au and 491 g/t Ag (15.32 g/t AuEq) Over 1.52 m. Drill results from Sullivan Gulch (located on the eastern portion of the DeLamar Deposit) include: IDE-22-228 – Intercepts from new Sullivan Gulch, high-grade zone. 0.76 grams per tonne (“g/t”) gold (“Au”) and 69.50 g/t silver (“Ag”) (1.66 g/t gold equivalent (“AuEq”)) over 396.85 meters (“m”). IDE-22-228 - Intercepts from new Sullivan Gulch, high-grade zone: 1.15 g/t Au and 88.21 g/t Ag (2.28 g/t AuEq) over 52.73 m .

Including 2.33 g/t Au and 184.02 g/t Ag (4.70 g/t AuEq) over 11.58 m. Including 9.00 g/t Au and 491.00 g/t Ag (15.32 g/t AuEq) over 1.52 m. IDE-22-228 – Intercepts from new Sullivan Gulch, high-grade zone: 0.45 g/t Au and 87.46 g/t Ag (1.58 g/t AuEq) over 51.82 m. Including 0.59 g/t Au and 547.00 g/t Ag (7.63 g/t AuEq) over 1.52 m. Including 2.80 g/t Au and 435.00 g/t Ag (8.40 g/t AuEq) over 1.53 m. IDE-22-229 - Located 320 m from the pit constrained resource at Sullivan Gulch: 0.43 g/t Au and 19.75 g/t Ag (0.68 g/t AuEq) over 111.26 m. Including 1.55 g/t Au and 227.98 g/t Ag (4.48 g/t AuEq) over 5.79 m. Including 1.80 g/t Au and 528.00 g/t Ag (8.60 g/t AuEq) over 1.22 m. Including 2.73 g/t Au and 49.87 g/t Ag (3.37 g/t AuEq) over 3.04 m. Multiple intercepts released from IDE-22-228 expand the continuity and presence of a new high-grade gold-silver zone that trends Northwest and dips Northeast at Sullivan Gulch. The discovery of this new trend was announced on May 25, 2022 and included: IDE-22-228 (previously released intersect). 4.10 grams per tonne (“g/t”) gold (“Au”) and 446.92 g/t silver (“Ag”) (9.85 g/t gold equivalent (“AuEq”)) over 26.97 meters (“m”).

Including 13.47 g/t Au and 1,909.45 g/t Ag (38.05 g/t AuEq) over 5.63 m. Including 80.40 g/t Au and 14,054.00 g/t Ag (261.28 g/t AuEq) over 0.40 m. Including 40.74 g/t Au and 2,839.00 g/t Ag (77.28 g/t AuEq) over 0.76 m. The drill results announced continue to demonstrate the size and magnitude of the low-grade disseminated gold-silver zone at Sullivan Gulch along with the potential for resource growth, including drill hole IDE-22-229 which was drilled 320 m from the pit constrained resource at Sullivan Gulch. Intercepts in drill hole IDE-22-228 also continue to demonstrate the continuity of the newly discovered high-grade gold-silver structure that trends Northwest and dips Northeast. Drill hole IDE-22-228 now includes both the highest-grade silver intercept at DeLamar (please reference the news release dated May 25, 2022) and the longest interval of low-grade mineralization to date at the Project.