Radisson Mining Resources Inc. announced results from the first 3 drill holes (or 1,240 metres ('m")) of an ongoing drill program at its 100% owned O'Brien gold project located along the Larder-Lake-Cadillac Break, halfway between Rouyn-Noranda and Val-d'Or in Quebec, Canada. Key Highlights: OB-23-284 intersected 81.83 grams per tonne ("g/t") gold ("Au") over 3.00 m OB-23-283 intersected 6.16 g/t Au over 3.00 m and 5.17 g/t Au over 4.40 m Successful start confirms Inferred resource growth potential in the upper 500 m Program well underway with 12 drill holes completed, for 5,820 m drilled, to date 4,570 m of assays pending from 9 drill holes on Trend 3 and 4. True widths estimated at 70% to 80% of core length. Assay grades shown uncapped.

A capping factor of 40 g/t Au was used in the 2023 resource estimate. Targeting completed during Phase 1 Phase 1 of the drill program was designed with the objective of growing Inferred resources in areas with strongest veining and grade continuity within the first 500 m below surface, between Trends 0 and Trend 4. As illustrated, many zones can still be targeted in this superficial domain to reach a drill hole spacing of 25 m by 25 m. With the modeling of the veins and the compilation of historic gold values in the historic O'Brien mine, the vein's behaviour is well understood and, moreover, the gold distribution along each vein is also understood. The high-grade gold shoots commonly form high grade shoots with a lateral strike length of 15-20 m and a continuous vertical extent up to 400 m as illustrated on the longitudinal view of the vein V3-N_12.

Intercepts published in holes OB-23-283 and OB-23-284 support this concept in areas targeted for resource growth having reached a vertical extent exceeding 130 m. Areas like these, including the area where mineralization returned 81.83 g/t Au over 3.,00 m are expected to contribute significantly to resources in a future MRE update. Cross section from Trend 1 - O'Brien gold project QA/QC All drill cores in this campaign are NQ in size. The Company's Qualified Person has reviewed and approved the technical.