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RDS.V ·

Radisson reports high grade gold intercepts including 25.68 g/t

Drill Results

www.radissonmining.com

For immediate release TSX-V: RDS, OTCQB: RMRDF, FRANKFURT: 2RX

Rouyn-Noranda, Qc

September 9, 2021

Radisson reports high grade gold intercepts including 25.68 g/t

over 2.00 m, 8.20 g/t over 7.00 m, 24.80 g/t over 2.00 m and 10.02 g/t

over 4.40 m from resource expansion drilling at the O’Brien project

Radisson Mining Resources Inc. (TSX -V: RDS, OTC: RMRDF): (“Radisson” or the

“Company") is pleased to announce 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 (see location map 1 and location map 2), halfway between Rouyn-

Noranda and Val-d’Or in Quebec, Canada.

Key highlights

• Significant intercepts from resource expansion drilling (upper 450 m) along trend #2;

o OB-21-202:

▪ 8.20 g/t Au over 7.00 m, including 10.95 g/t Au over 3.90 m

o OB-21-204:

▪ 25.68 g/t Au over 2.00 m, including 51.30 g/t Au over 1.00 m

o OB-21-205:

▪ 10.59 g/t Au over 2.10 m, including 19.75 g/t Au over 1.10 m

o OB-21-211:

▪ 15.91 g/t Au over 2.00 m, including 31.80 g/t Au over 1.00 m

• Significant intercepts from resource expansion drilling (upper 200 m) along trend #3;

o OB-21-206:

▪ 9.76 g/t Au over 2.00 m including 19.45 g/t Au over 1.00 m, and

▪ 24.80 g/t Au over 2.00 m including 48.60 g/t Au over 1.00 m

o OB-21-207:

▪ 10.02 g/t Au over 4.40 m including 24.80 g/t Au over 1.30 m, and

▪ 11.12 g/t Au over 2.30 m including 19.05 g/t Au over 1.30 m

• Released results include m ultiple shallow high-grade intercepts outside defined

resources in the upper 450 m of trend #2 and upper 200 m of trend #3.

• Drill results have also traced mineralization at depth well below currently defined

resources, down to 800 m along trend #2 (current resources are mostly within the upper

400 m) and down to 500 m a long trend #3 (current resources are mostly within the

upper 240 m)

• 130,000 m drill program (commenced Aug 2019) underway at O’Brien.

o 87,470 m completed thus far with results pending for 10,021 m

• Cash balance of approx. $10.0 M

Highlight drill results

Hole Zone

From

(m) To (m)

Core

Length2

(m)

Au

(g/t) –

Uncut3 Comments

OB-20-173 Trend #3

232.00 234.00 2.00 7.81 North Porphyry

Including 232.00 233.00 1.00 14.50

OB-20-177 Trend #3

287.00 289.00 2.00 7.59 Pontiac Sediments

Including 287.00 288.00 1.00 9.33

AND 379.50 381.50 2.00 5.35 South Mafic Volcanics

OB-20-178 Trend #3

220.25 222.60 2.35 9.21 Pontiac Sediments

Including 221.15 222.60 1.45 14.85

AND 471.90 474.30 2.40 4.19

Contact Conglomerate –

North Porphyry

OB-21-202 Trend #2

465.30 472.30 7.00 8.20 South Mafic Volcanics *VG

Including 467.30 471.20 3.90 10.95

OB-21-204 Trend #2

87.60 89.60 2.00 25.68 Pontiac Sediments

Including 88.60 89.60 1.00 51.30

AND 432.00 435.15 3.15 4.47 Central Mafic Volcanics

Including 434.00 435.15 1.15 7.62

OB-21-205 Trend #2

213.90 216.00 2.10 10.59 Pontiac Sediments

Including 214.90 216.00 1.10 19.75

AND 398.40 400.20 1.80 5.45 Central Mafic Volcanics

Including 399.20 400.20 1.00 9.79

OB-21-209 Trend #2

385.90 388.20 2.30 4.86 South Mafic Volcanics

Including 387.40 388.20 0.80 8.05

OB-21-210 Trend #2

156.00 158.00 2.00 7.32 South Mafic Volcanics *VG

Including 157.00 158.00 1.00 14.60

OB-21-211 Trend #2

132.00 134.00 2.00 15.91 Pontiac Sediments *VG

Including 132.00 133.00 1.00 31.80

AND 246.00 249.00 3.00 6.54 South Mafic Volcanics

Including 246.00 248.00 2.00 8.29

OB-21-214 Trend #2

360.20 362.20 2.00 6.36 North Porphyry

Including 360.20 361.20 1.00 11.30

OB-21-206 Trend #3

95.40 97.40 2.00 9.76 Pontiac Sediments

Including 96.40 97.40 1.00 19.45

AND 244.30 246.20 1.90 6.88 South Mafic Volcanics

AND 267.30 269.30 2.00 24.80 North Porphyry

Including 268.30 269.30 1.00 48.60

OB-21-207 Trend #3

174.50 178.90 4.40 10.02 South Mafic Volcanics

Including 174.50 175.40 0.90 13.10

And 177.60 178.90 1.30 24.80

AND 256.20 258.50 2.30 11.12 North Porphyry *VG

Including 256.20 257.50 1.30 19.05

1. VG denotes the presence of visible gold

2. True widths estimated at 70% to 80% of core length. Unless otherwise relevant, primary intercepts

reflect minimum mining width (1.5 0 m true width) at a 5.0 0 g/t cut -off grade consistent with

assumptions used in the 2019 MRE.

3. Assay grades shown uncapped. A capping factor of 60 g/t Au was used in the 2019 resource estimate

4. Table includes only intercepts that meet 5 g/t Au cut-off and minimum mining width constraints used

in the 2019 MRE. For a full listing of drill results from current drilling program click here.

“We continue to be very encouraged by results from our ongoing campaign that validate

our lithostructural model and demonstrate the significant upside to currently defined

resources. Drilling thus far has suggested the potential to at least double the depth extent

of resources along three high -grade mineralized trends within an approximately 1 km

strike to the east of the old O’Brien Mine.

In addition, several shallow holes released today intersected high-grade mineralized

structures outside defined resource blocks in the upper 450 m along trend #2 and in the

upper 200 m along trend #3 , highlighting opportunities for resource growth in sparsely

drilled areas closer to surface. We are particularly impressed by results from Trend #3,

including 10.02 g/t Au over 4. 40 m in hole OB -21-207 aimed at expanding one of the

highest-grade resource blocks in the 2019 mineral resource estimate.

The majority of our work program thus far has been focused within a 1 km along strike to

the east of the historic O’Brien Mine, we believe there is significantly more upside to be

unlocked from a prospective land package that i ncludes more than 5 km of strike length

along the prolific Cadillac Break. Results so far, all support our theory of discovering and

expanding additional high-grade mineralized trends as we step out systematically further

along strike and deeper beyond the limits of drilling to date .” commented Rahul Paul,

President and Interim Chief Executive Officer.

Step-out drilling highlights resource growth potential up to 330 m below current

resources in trend #2 (600 m east of the old O’Brien Mine)

OB-21-202 intersected 8.20 g/t Au over 7.00 m at a vertical depth of approximately 440

m. This intercept along with s everal relatively broader intercepts (previously released)

from holes OB-20-124 (8.35 g/t Au over 6.00 m), OB-20-180 (18.42 g/t over 5.00 m), OB-

20-156 (11.32 g/t Au over 11.80 m), OB-20-156W2 (5.77 g/t over 7.10 m) and OB-21-201

(11.13 g/t Au over 10.70 m) suggest potential for wider mineralized zones (5 – 20 m wide)

between 400 – 700 m vertical depth , likely highlighting the impact of cross-cutting high-

grade mineralized veins.

Drilling has now traced mineralization down to a vertical depth of 800 m, in this sector

where most of current resources lie from surface down to 400 m depth. Mineralization in

trend #2 is currently open for expansion below 800 m as well as laterally to the east and

west.

Exploration drilling highlights resource growth potential along trend #3 (900 m east

of the old O’Brien Mine)

Drill holes OB-21-206 and OB -21-207 (10.02 g/t Au over 4.40 m) were designed as

resource expansion drill holes near one of the highest -grade resource blocks defined in

2019. These results add to high-grade gold intercepts obtained in 2020 in the sector in

hole OB-20-149 (45.86 g/t Au over 2.10 m, obtained 260 m below current resources) and

OB-20-146 (17.90 g/t Au over 2.15 m and 21.29 g/t Au over 2.00 m).

Newly released intercepts confirm resource expansion and exploration potential in the

sector where most of current resources lie from surface down to only 240 m depth.

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 previous ly 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 exp ansion laterally and at

depth. In trend #1, drilling has highlighted continuity of mineralization down to a vertical

depth of 950 m, while current resources are mostly limited to a vertical depth of

approximately 600 m. In trend #2, drilling has highlighted continuity of mineralization down

to a vertical depth of over 800 m, while current resources 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 within a vertical depth of 240 m.

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. Given current geological understanding, the ongoing validation of the litho

structural model, the company estimates there is strong exploration for additional high -

grade gold trends along the whole 5.2 km prospective land package on the prolific Larder-

Lake Cadillac Break.

87,470 m of drilling completed to date with assays pending for approx. 10,021 m

This release represents approximately 9,660 m of drilling in 19 drill holes. Released results

to date (since the commencement of drilling in August 2019) represent approximately 52%

of the 130,000 m envisioned to be complete d by the end of 2021. As of September 7,

2021, the company remains well funded with approximately $10.0 m in cash.

Figure 1. Au Grade distribution (Trend #2 Holes): OB-21-202, OB-21-204, OB-21-205, OB-21-209, OB-21-210, OB-21-211 and OB-21-214

Figure 2. Au Grade distribution (Trend #3 Holes): OB-20-173, OB-20-177, OB-20-178, OB-21-206 and OB-21-207

Figure 3. O’Brien Gold Project: Resource Block Model @ 5.0 g/t cut-off; Longitudinal section looking North

Figure 4. O’Brien Gold Project: Cross section – Mineralized trend #2