Sirios Resources, Inc. · TSXV:SOI
Sirios Resources — Investor Presentation (October 2026)
20 slides from Sirios Resources's investor presentation, October 2026
Slide 1: Sirios Resources
Sirios Resources The leading gold developer in Eeyou-Istchee James Bay with district-scale growth potential Corporate Presentation – October 2026 TSX-V: SOI | OTCQB: SIREF | FRA: 377A
Slide 2: Forward-Looking Statements
FORWARD-LOOKING STATEMENTS This presentation contains "forward-looking information" within the meaning of applicable Canadian securities legislation. All statements, other than statements of historical fact, are forward-looking statements and are based on expectations, estimates and projections as a
Slide 3: Proven Leadership
PROVEN LEADERSHIP Track records in capital markets and mine project development Executive Chairman & Head of Exploration Board Member Dominique Doucet Colinda Parent Veteran of Québec’s mineral exploration sector with 40+ years of Mining-focused investment banking specialist with deep expertise in r
Slide 4: Leading Gold Project Pipeline in James Bay
LEADING GOLD PROJECT PIPELINE IN JAMES BAY Optionality in high-quality projects from early-stage to resources Projects are all strategically located on greenstone belts along the contact between the two main geological sub-provinces. Flagship • Cheechoo Advanced exploration • Aquilon (JV-49%) • PLEX
Slide 5: The Cheechoo Gold Project
THE CHEECHOO GOLD PROJECT Fully owned (100%) by Sirios ÉLÉONORE Near-surface gold deposit with scalable open-pit potential and MINE underground extensions with strong continuity 2025 Gold Mineral Resources Estimate 1.3 million ounces at 1.12 g/t Au (Indicated) 1.7 million ounces at 1.23 g/t Au (Infe
Slide 6: The Cheechoo Gold Project - Social Responsibility
THE CHEECHOO GOLD PROJECT - SOCIAL RESPONSIBILITY Long-standing positive relationship with Cree communities Strong community engagement with the Cree Nation of Wemindji • Established following the creation of the Cheechoo project by Dominique Doucet over 30 years ago. • Trust has been built, not giv
Slide 7: The Cheechoo Gold Project
THE CHEECHOO GOLD PROJECT Cheechoo 2025 reached critical mass for project development Cheechoo 2025 MRE Pit Shell Cheechoo 2025 MRE Conceptual Pit Shell, Underground Solids and Block Model (2025 MRE) Contained Category Tonnes (kt) Au (g/t) (kOz) Indicated 34,993 1.12 1,262 Pit Constrained Inferred 3
Slide 8: Cheechoo Is Mining-Grade Material
CHEECHOO IS MINING-GRADE MATERIAL Cheechoo’s contained gold per tonne mined ranks favourably against open pit mines Strip-Adjusted Contained Gold per Tonne of Material Au (oz) / Ore + Waste (kt) Head Grade (g/t) 12.0 Why oz per total tonnes ? 1.6 In Open Pit mining, grade is king only 10.0 when comb
Slide 9: Cheechoo's Open Pit Potential
CHEECHOO’S OPEN PIT POTENTIAL Cheechoo demonstrates hallmarks consistent with large, open pit mines Cheechoo Blackwater (EP2) Greenstone Location # Québec British Columbia Ontario Operator # Sirios Resources (TSXV:SOI) Artemis Gold (TSXV:ARTG) Equinox Gold (TSX:EQX) Stage # Resource Production Produ
Slide 10: The Cheechoo Gold Project – Exploration Upside
THE CHEECHOO GOLD PROJECT – EXPLORATION UPSIDE Modelled Exploration target highlights significant scale growth beyond the current 2025 resource The 2025 MRE outlined a significant Exploration Target of 31 to 40 million tonnes with gold grades ranging from 1.27 to 1.45 g/t Au. The gold-mineralized zo
Slide 11: Cheechoo Project Timeline
Cheechoo Project Timeline Fully funded program to deliver PEA in 2027 2025 2026 2027 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Road Access upgrade Completed Site Prep - Increase camp size Completed - Modernize core shack Drilling Program phase 1 Completed MRE Expansion Drilling Program phase 2 Planning Phase Ongoing Exp
Slide 12: The Cheechoo Gold Project – Drilling
THE CHEECHOO GOLD PROJECT – DRILLING Ongoing expansion drilling campaign Fully financed 35,000m drilling campaign, phase 1 completed in September 2026 As of September 29, 45 holes and 23,037.5m drilled 2026 selected intercepts Grade Length Drill Hole From (m) To (m) (g/t) (m) 257.7 295.3 1.49 37.6 C
Slide 13: Cheechoo Drilling – 2026 Summer Campaign
Cheechoo Drilling – 2026 Summer Campaign Ongoing expansion drilling campaign Results continue to show continuity outside 2025 MRE pit shell and stope shapes. 39.94 g/t over 6.5m 0.62 g/t over 58.4m 9.05 g/t over 12m 2.40 g/t over 48.5m 0.43 g/t over 122m SOI │ TSX-V │ 13
Slide 14: The Cheechoo Gold Project – Drilling
THE CHEECHOO GOLD PROJECT – DRILLING Ongoing expansion drilling campaign As of September 29, Visible gold observed in 68 intervals from 18 drill holes SOI │ TSX-V │ 14
Slide 15: Valuation Benchmark
VALUATION BENCHMARK Sirios trades at the low end of MRE-stage peers, with two major catalysts ahead CATALYST 1 • Q4 2026 CATALYST 2 • H1 2027 Updated MRE Cheechoo PEA Incorporates 2026 Phase 1 Drilling Cheechoo’s first economic study MRE ONLY SOI PEA $242 EV per Resource Ounce by Development Stage (
Slide 16: Attractive Valuation Gap
ATTRACTIVE VALUATION GAP Stage-adjacent peers average 0.30x study NPV → Cheechoo's PEA expected H1’2027 Sensitivity LoM Prod. Avg. Annual After-Tax OP Grade Strip Ratio Market Cap Mkt Cap / NPV Company | Project Study Gold Price (koz) Prod. (koz) NPV5% (C$M) (g/t Au) (w:o) (C$M) (x) (US$/oz) Gold X2
Slide 17: PLEX
PLEX District Scale Gold Potential Highlights Orfée deposit: 125 koz @ 14.5 g/t Au (historical, Geopointcom 2003) > 45 km Hosts >40 km of greenstone belt over 21,000 hectares David Orfée 188 drillholes, totaling 38,377m Multiple showings including Edy, David, SLTV-Charlie, Orfée, Edy Guylaine-Ilto a
Slide 18: Aquilon JV
Aquilon JV Highlights Lingo Showing 12,905 g/t over 0.2m JV with Sumitomo (49% Sirios) Hosts over 30 gold showing across 7,100 hectares Over 5km gold trend 226 drill holes, totalling 19,070 m Moman Showing 834.4g/t over 1.7m 116.5g/t over 2.3m 425.3 g/t over 0.6m 0.26g/t over 298.2m Next Steps Fall
Slide 19: Capitalization Structure
CAPITALIZATION STRUCTURE Sirios Resources TSX-V: SOI As of September 19, 2026 (0.20 C$) OTCQB: SIREF Market Capitalization C$135M (undiluted basis) Institutions Basic Shares Outstanding 674.7M Osisko (OGG & EEM) Warrants 90.1M Management & Insiders 26% HNW Options 18.4M Retail Fully Diluted 783.2M E
Slide 20: The Gold Leader in Eeyou Istchee James Bay
THE GOLD LEADER IN EEYOU ISTCHEE JAMES BAY Sirios Resources Inc. Jean-Félix Lepage President & CEO [email protected] www.sirios.com SOI │ TSX-V │ 20
Sirios Resources — Investor Presentation (October 2026) on 6ix