O’Brien Project Reports High Grade Gold Intercepts

QUEBEC - Radisson Mining Resources Inc. reported significant high-grade gold intercepts from the ongoing 130,000 m exploration 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.

Resource expansion potential at depth along mineralized trend #1 (300 m east of the old O’Brien Mine); Hole OB-20-174w1b returned 24.22 g/t Au over 3.00 m core length at a vertical depth of 930 m approximately 280 m below the boundary of resources. In addition, OB-20-181 returned multiple high-grade intercepts including 13.74 g/t Au over 1.70 m core length (vertical depth of 785 m) and 19.63 g/t Au over 3.40 m (vertical depth of 820 m), the high-grade intercepts were respectively obtained approximately 120 m and 170 m below the resource boundary. OB-20-174w1b is a wedge off pilot hole OB-20-174 which also intersected multiple lower-grade mineralized zones approximately 30 m west of the above intercept. OB-20-174 and OB-20-174W1b are the deepest holes drilled since the beginning of the program to test the extension of mineralized trend #1.

The high-grade intercepts obtained in hole OB-20-174w1b and OB-20-181 appear to have been obtained in the same geological units. These intercepts along with other previously reported intercepts including 66.71 g/t Au over 4.70 m (OB-19-92W2b), 37.76 g/t Au over 2.00 m (OB-19-98W2), 23.57 g/t Au over 2.60 m (OB-19-107), 45.33 g/t Au over 2.20 m (OB-20-148W1) and 110.97 g/t Au over 2.50 m (OB-20-167) demonstrate continuity of high grade mineralization down to a vertical depth of 950 m and up to 350 m below currently defined resources on trend #1.

Drilling at O’Brien continues to validate the litho-structural model while highlighting resource growth potential laterally and at depth; Drilling to date has continued to define and expand three high-grade mineralized trends, located approximately 300 m, 600 m and 900 m respectively to the east of the old O’Brien Mine. Mineralized trends identified bear similarities with structures previously mined at O’Brien down to a depth of 1,100 m (historical production of 587 koz grading 15.25 g/t).

Drilling so far has demonstrated continuity of mineralization well below the boundary of defined resources in all three trends, which remain open for expansion laterally and at depth. In trend #1, drilling has highlighted continuity of mineralization down to a vertical depth of 950 m, approximately 350 m below the boundary of resources that are limited to a vertical depth of 600 m. In trend #2, drilling has highlighted continuity of mineralization down to a vertical depth of 770 m, approximately 300 m below the boundary of resources that are mostly within 400 m from surface. In trend #3, drilling has traced mineralization down to 500 m vertical depth from surface. Current resources are mostly confined to between surface and 240 m vertical depth.

Almost all drilling conducted as part of the ongoing campaign has been within a strike length of approximately 1 km to the east of the old O’Brien mine, representing only a small portion of more than 5.2 km of prospective strike that Radisson controls along the Cadillac Break. 60,499 m of drilling completed to date with assays pending for approx. 11,360 m. This represents approximately 3,196 m of drilling. Prior results represent approximately 39% of the 130,000 m envisioned to be complete by the end of 2021.