Radisson Mining Resources Inc. announced assay results from fifteen new drill holes completed at its 100%-owned O'Brien Gold Project located in the Abitibi region of Quebec. The fifteen holes represent step-outs below the existing geological model and the historic O'Brien Gold Mine and are part of an ongoing 140,000-metre drill program designed to test the overall scope of gold mineralization at the Project. All holes intersected gold mineralization in characteristic quartz-sulphide-gold veins within alteration zones, and thirteen of the holes returned intercepts with grades and thicknesses consistent with the Project's existing mineral resources.
Today's results include significant intercepts in three separate step-out locations, each of which has significance for the potential future growth of the Project's mineral resources. The first high-grade intercepts beneath the western portion of the historic mine, with drill hole OB-25-376W1 extending mineralization 160 metres below the former mine in this area. Drill hole OB-24-337W11 demonstrates continuity of high-grade mineralization belowthe main stope of the historic mine.
Of particular note, drill holes OB-25-371W4 to W6 returned high-grade mineralization on the western edge of the deep extension of Trend #2, close to the observed extension of Trend #1. This suggests that the apparent gap between these two trends is a function of drill coverage rather than geology, as have suspected. With a fully-funded 140,000-metre drilling program ongoing and an increase in rigs from the current four to an eventual eight, the company are casting a wide net at O'Brien and seeing consistent success. This drilling is accomplished with pilot holes followed by wedges and directional drilling to maximize drill efficiency.
On October 16, 2025 Radisson announced the expansion of the step-out drill program to 140,000 metres employing an eventual eight drill rigs. The origin of the step-out drill programs was the deep pilot hole OB-24-337, which was the first exploration drill hole located below the former mine workings since mining ended in 1957. With today's results, assay results from a total of 11 wedges from OB-24-337 have now been reported and up to six gold-bearing veins have been delineated over an area of approximately 250 metres (east-west) by 500 metres (vertical).
Targeting this gap and testing for continuity of mineralization between Trends #1 and #2, as well as at depth, is a priority of the current drill program. Today's results also include the first drill holes located below the western portion of the historic O'Brien Gold mine, designated "O'Brien Mine West".
