DeLamar Project Stockpile Program Completed

VANCOUVER - Integra Resources Corp. reported on 21 additional drill holes representing 860 meters (m), from the recently completed stockpile drilling program at the DeLamar Project located in southwestern Idaho. The Stockpile drilling 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 Pre-feasibility Study.

Integra is currently focused on achieving several key milestones in 2023, including an updated mineral resource estimate and the submission of the Mine Plan of Operations at DeLamar, as well as an updated mineral resource estimate and Preliminary Economic Study at the Wildcat & Mountain View Projects, located in western Nevada.

President, CEO & Director, Jason Kosec, said, “The successful completion of the stockpile drilling program this winter required a monumental effort and we are extremely thankful for our industry leading team at site. Overall, the drill program was a resounding success with the results exceeding our original estimates and modeling in terms of grade and continuity. The updated resource estimate, including results from the stockpile drill program is expected to demonstrate the potential for the material to significantly increase the heap leach mine life in future phases as well as enhance the overall project economics at DeLamar.”

The stockpile drill program was executed at 60 m collar spacings with select 30 m infill test holes to further verify grade variability in future resource estimation and to provide additional metallurgical samples. All drilling was vertical through the entirety of the stockpiles and backfill material. The drilling was conducted by a combination of Sonic and traditional reverse circulation (RC) with casing advance drilling methods. Both these drilling methods maintain high sample quality and integrity throughout the drilling process. Additionally, the two drilling methods provided a basis for continuity comparison. Sampling was conducted at 1.5 m intervals for the whole of the drilling program with all samples sent to a third-party lab for analysis. The Sonic Drilling provided material suitable for ongoing comprehensive metallurgical test work.