Radisson Extends High-Grade Gold Mineralization at O'Brien to 1.9 Kilometres Depth with Latest Drill Results

Rouyn-Noranda, Quebec--(Newsfile Corp. - April 30, 2026) - Radisson Mining Resources Inc. (TSXV: RDS) (OTCQX: RMRDF) ("Radisson" or the "Company") is pleased to announce assay results from sixteen new drill holes completed at its 100%-owned O'Brien Gold Project ("O'Brien" or the "Project") located in the Abitibi region of Québec. Of note, today's results include significant intercepts of high-grade gold in the new pilot hole OB-26-384 at 1.9 kilometres vertical depth, the deepest hole ever drilled at the Project.