Slide 1: The O'Brien Gold Project: A New Vision for an Historic High-Grade Gold Mine
The O'Brien Gold Project A New Vision for an Historic High-Grade Gold Mine in Québec's Abitibi Mining Forum Americas 2026 Matt Manson, President and CEO TSXV:RDS OTCQX:RMRDF
Slide 2: Cautionary Statement Regarding Forward-Looking Information
TSXV : RD S OTCQX : RMRDF 2 Cautionary Statement Regarding Forward-Looking Information This presentation contains "forward-looking information" within the meaning of the applicable Canadian securities other risks of the mining industry; delays in obtaining governmental approvals or financing; risks
Slide 3: Cautionary Statement Regarding Forward-Looking Information
TSXV : RD S OTCQX : RMRDF 3 Cautionary Statement Regarding Forward-Looking Information Qualified Persons All-in Sustaining Cost (AISC) and AISC per Ounce Disclosure of a scientific or technical nature in this presentation was prepared under the supervision of Mr. Richard AISC is reflective of all of
Slide 4: Exploring and Growing the Historic O'Brien Gold Project in Québec's Abitibi
TSXV : RD S OTCQX : RMRDF 4 W H Y R A DI S S O N H I G H - G R AD E R ES O U R C E (E F F E C TI V E J AN 2 02 6 ) 1 Updated 2026 Mineral Resource Estimate Published March 2, 2026 Exploring and Growing the 0.63 Moz Indicated 1.69 Moz Inferred Historic O’Brien Gold 3.5 Mt at 5.59 g/t Au 10.4 Mt at 5.
Slide 5: C$57M to Support Advanced Underground Exploration Program
TSXV : RD S OTCQX : RMRDF 5 A G N I C O EA G L E I N V E S T M E N T ST RA T EG I C I NV E STM E NT (C L O S ED S EP TE MB ER 1, 20 2 6) 1 C$1.07/unit. 19% premium to 20-day VWAP and 6% to spot. Half warrant at C$57M to Support C$1.39. 10.45% ownership of issued/outstanding and 14.90% partially dilu
Slide 6: Management and Board
TSXV : RD S OTCQX : RMRDF 6 Board Pierre Beaudoin Peter MacPhail | Director Chairperson ▪ 35+ years of m ining experie nce . Formerly COO (2015-2022) of Alamos Gold, Aurico and Northgate Mine rals ▪ 30+ years of mining experie nce ▪ Forme rly COO (2018-2024) of SilverCrest Metals Inc. for Las Chipas
Slide 7: A History of Hub-and-Spoke Mining Complexes
TSXV : RD S OTCQX : RMRDF 7 Q U É B E C ’ S A BI T I B I A History of Hub-and- N Spoke Mining Complexes Mines and Mining Services in Québec’s Abitibi (+100 Moz Au endowment) Positioned within the 25 Moz Cadillac- AGNICO: LaRonde IAMGOLD: Bousquet Camp on the Cadillac-Larder ROUYN- Doyon- Lake Break
Slide 8: O'Brien located 3km from LaRonde Complex and 21km from Westwood-Doyon
TSXV : RD S OTCQX : RMRDF 8 O’Brien located 3km (direct) from Westwood- LaRonde Complex and 21km (by Doyon road) from Westwood-Doyon Complex LaRonde On this slide: Three mills, two operating tailings facilities, multiple shafts, highway, powerline, railway O’Brien Gold Project Cadillac
Slide 9: Exploration and Growth
Exploration and Growth \
Slide 10: Adjacent Ore Deposits in the Cadillac-Bousquet District
TSXV : RD S OTCQX : RMRDF 10 Adjacent Ore Deposits in the Cadillac-Bousquet District O’Brien Project 2026 O’Brien MRE 140,000 m step-out drill program ongoing to 2km depth
Slide 11: O'Brien Geology: Multiple Veins and a High-Graded Historic Mine
TSXV : RD S OTCQX : RMRDF 11 O’Brien Geology: Multiple Veins and a High-Graded Historic Mine
Slide 12: Recent Drilling Highlights
TSXV : RD S OTCQX : RMRDF 12 Recent Drilling Highlights July 7, 2026: Highest Ever Drill Assay in History of Project OB-26-385W4 1,603.95 g/t Au over 1.0 metre (within 316.31 g/t Au over 5.1 metres). OB-26-384W1 132.28 g/t Au over 1.3 metres (within 46.22 g/t Au over 3.9 metres)
Slide 13: Deep Exploration and Growth: Successful Step-Out Drilling
TSXV : RD S OTCQX : RMRDF 13 Deep Exploration and Growth: Successful Step-Out Drilling A 140,000m step-out drill program with up to 8 drill rigs is ongoing to test the full potential of the Project 2025 MRE With Deep Step-Out Result: deep drill holes + wedges have intersected high-grade Drill Result
Slide 14: Testing Project Scope
TSXV : RD S OTCQX : RMRDF 14 Testing Project Scope 2026 MRE Update, 2.2 g/t Au Cutoff (US$2,500, 1.2m minimum width, 90% Recovery) Indicated Resource Inferred Resource 0.63 Million Oz 1.69 Million Oz (3.49 Mtonnes at 5.59 g/t) (10.37 Mtonnes at 5.08 g/t) Additional Exploration Target to 2km Depth De
Slide 15: September Drilling Completed
TSXV : RD S OTCQX : RMRDF 15 September 21, 2026: Drilling Completed since March 2026 MRE
Slide 16: Recent Drilling Highlights
TSXV : RD S OTCQX : RMRDF 16 Recent Drilling Highlights September 21, 2026: O’Brien Mine East Growing Inc. 68.24 g/t Au over 6.2m
Slide 17: 18 Month Drilling Success
TSXV : RD S OTCQX : RMRDF 17 W H Y R A DI S S O N Drill Results Reported Over the Last 12 Months 18 Month Drilling Success Holes “Hit” “Hit” 1. Represents 100% of drill holes completed and assayed (Contains News Release Best Intercept2 2. The O’Brien Gold Project MRE effective May 6, 2025 utilizes a
Slide 18: Mine Development
Mine Development \
Slide 19: O'Brien 2025 PEA: Basis of Study
TSXV : RD S OTCQX : RMRDF 19 Westwood- O’Brien 2025 PEA: Basis of Study Doyon Complex “Snap-shot” study using 2025 MRE, based on drilling to the end of 2022. Does not incorporate the recently expanded 2026 MRE. 140,000m fully LaRonde funded drill program ongoing. Complex Assumes off-site milling bas
Slide 20: Next Steps
TSXV : RD S OTCQX : RMRDF 20 Next Steps Pursuing Exploration Growth Pursuing Development Path Significant Success with Ongoing Integration into Existing Mine-and-Mill Exploration Complex or Stand Alone? Fully Funded 140,000m drill C$57M investment by Agnico Eagle to program with up to 9 rigs through
Slide 21: Capitalization and Balance Sheet
TSXV : RD S OTCQX : RMRDF 21 Capitalization and Balance Sheet Shareholder Distribution Tickers TSXV:RDS | OTCQX:RMRDF 35.4% 6.0% Management & 1 Public Float Insiders Share Price C$1.17 2 Market Cap C$598 Million 2 25.0% Common Shares 512 Million Institutional 2 10.4% Shareholders Options 15 Million
Slide 22: Contact Information
Contact Information Matt Manson President, CEO & Director mmanson@radissonmining.com Hubert Parent-Bouchard Chief Financial Officer hpbouchard@radissonmining.com Radisson Mining Resources Inc. 50 rue du Petit-Canada Kristina Pillon Rouyn-Noranda, Qc J0Y 1C0 Manager, Investor Relations Investor Inqui