Wesdome Gold Mines Ltd. · TSX:WDO
Wesdome Gold Mines — Technical Presentation (March 2026)
43 slides from Wesdome Gold Mines's technical presentation, Mar 30, 2026
Slide 1: Exploration Teach-in
EXPLORATION TEACH-IN TSX: WDO | OTCQX: WDOFF MARCH 30, 2026
Slide 2: Forward-Looking Statements
Forward-Looking Statements Forward-Looking Statements This presentation contains “forward-looking information” which involve a number of risks and uncertainties. There can be no assurance that forward-looking statements or information will prove to be accurate, as actual Often, but not always, forwa
Slide 3: Today's Speakers and Agenda
Today’s Speakers Today’s Agenda Opening Remarks Meet Our Exploration Team Exploration Strategy Eagle River Global Model Eagle River Geology and Exploration ANTHEA BATH JONO LAWRENCE President and Senior Vice President, Chief Executive Officer Exploration and Resources Kiena Geology and Exploration B
Slide 4: Opening Remarks
Opening Remarks we Wp)
Slide 5: Meet Our Exploration Team
Meet Our Exploration Team
Slide 6: A Strong and Experienced Team
A Strong and Experienced Team Jono Lawrence Renan Lopes Senior Vice President, Exploration and Resources Director Mineral Resources, Near Mine Geology, and UG Exploration Joined Wesdome in January 2025 Joined Wesdome in June 2025 • 34 years of global exploration experience across Africa, Australia,
Slide 7: Building Out the Structure to Support Our Multi-Year Exploration Strategy
Building Out the Structure to Support Our Multi-Year Exploration Strategy SVP, Exploration & Resources Jono Lawrence Director, Geology Director, Geology Director, Geology Group Compliance, Near-Mine Surface and Resources and Near-Mine Procedures, and Project Reviews Greenfields Exploration (Undergro
Slide 8: Exploration Strategy
Exploration Strategy
Slide 9: Growing Two of Canada's Highest Grade Gold Mines
Eagle River Growing Two of Canada’s Highest Grade Gold Mines (Producing, 100% Owned) LOCATION RESERVE GOLD GRADE1 50 km west of Wawa, ON #1 in Canada GREENSTONE BELT OPERATING Mishibishu Since 1995 LAND PACKAGE DRILL RIGS ON SITE 400 km2 8 (5 underground, 3 surface) ONTARIO QUÉBEC Greenstone Belt Ki
Slide 10: Focused on Delivering Value Through Organic Fill-the-Mill Strategy
Focused on Delivering Value Through Organic Fill-the-Mill Strategy 1 EXPLORATION 2 GLOBAL MODEL 3 OPTIMIZING & LEVERAGING COSTS ~1,200 tpd* ~2,040 tpd* Global model & exploration success Technology & automation Exploration success and 150 - 200 mine plan optimization 100 - 150 Cut-off grade & increm
Slide 11: Replacing Reserves While Growing Production at the Cost of Resource Ounces
Replacing Reserves While Growing Production at the Cost of Resource Ounces Production (koz), Reserves (koz) and Reserve Grade (g/t) Total Resources Exclusive of Reserves (koz) Cumulative Production Reserve Ounces Reserve Grade M+I Ounces Inferred Ounces Resource Grade 2,500 7.0 1,500 13.4 15.0 12.7
Slide 12: Data-Driven Exploration Strategy Targets High Probability Opportunities
Data-Driven Exploration Strategy Targets High Probability Opportunities Objective Support Extend Transform Life of Mine Life of Mine Life of Mine Up to 12 Months 1-3 Years 3+ Years Timeline Replace depletion Delineate laterally / at depth Major discoveries & Targets Grow resources Discover one new d
Slide 13: Advancing More Than 240 Known Targets Across the Portfolio
Advancing More Than 240 Known Targets Across the Portfolio 55% 270,000 75% 2026 Drilling Focused on Resource Expansion Total Metres Drilled in 2026 Conversion from Tier 4 to Resources Tier 4 Advanced* Reserves 120,000 Metres of Drilling in 2026 M+I Tier 5 Near-Resource Resources Follow up • 10+ dril
Slide 14: +50% of Record Exploration Budget Focused on Growth and Discovery
+50% of Record Exploration Budget1 Focused on Growth and Discovery EAGLE RIVER KIENA $30M $25M 50% 40% Delineation and conversion drilling $55M 2026 Exploration Budget Delineation and conversion drilling 50% 60% Testing growth Testing growth targets2 targets2 1. 2024 - $36M (189 km), 2025 - $39M (20
Slide 15: Eagle River Global Model
Eagle River Global Model
Slide 16: Capital Efficient Global Model Continues to Highlight New Opportunities
Capital Efficient Global Model Continues to Highlight New Opportunities W E Falcon 720 200 Zone 600 Zone Mined out 800 Zone 6 Central Existing development Zone > 7 gt Au 700 Zone 5-7 g/t Au 4-5 g/t Au 3-4 g/t Au 2-3 g/t Au 1-2 g/t Au < 1 g/t Au 0 250 500 750 1000m 300 Zone 16
Slide 17: Global Model Work Has Prioritized More Than 50 Target Areas To Date
Global Model Work Has Prioritized More Than 50 Target Areas To Date W E Falcon 720 700 Zone GM1 GM30 GM31 GM20 GM28 GM2 800F GM32 GM29 2 Zone GM5 GM4 GM3 GM21 GM27 GM7 1,200 tpd* GM8 GM24 GM25 600 Zone GM26 Global model, GM12 GM15 GM9 800E exploration GM16 success, Falcon 311 GM23 600A 600B 800C tec
Slide 18: Eagle River Geology & Exploration
Eagle River Geology & Exploration
Slide 19: Eagle River: Redefining the Asset that Built Wesdome
Eagle River: Redefining the Asset that Built Wesdome OVERVIEW More than 2Moz produced over 30 years of continuous production. OPERATIONAL MILESTONES 1995 2013 2019 2023 2025 2026 First production High-grade High-grade Global model Angus Gold Record exploration at Eagle River 7 and 300 zones Falcon Z
Slide 20: A World-Class District with Multiple Active Producers & Regional Infrastructure
A World-Class District with Multiple Active Producers & Regional Infrastructure Hemlo Kabinakagami Producing mine (25Moz produced / 2Moz reserves1) Greenstone Belt (Hemlo Mining Corp.) Town Marathon Sugar Zone Development project (Vault Minerals) Hemlo Archean greenstone Greenstone Belt White River
Slide 21: 400 km2 of Exploration Potential on the Mishibishu Greenstone Belt
400 km2 of Exploration Potential on the Mishibishu Greenstone Belt Gold mine / deposit Mishi Mine Magnacon Regional gold trend Mine Lake Superior Eagle River Wesdome property Mill Eagle River resource shapes (projected to surface) Haul road 0 2.5 5.0 7.5 10.0 Kilometres Dorset Zone Cameron Lake Eagl
Slide 22: 100+ Targets With More than 145,000 Metres of Drilling Planned for 2026
100+ Targets With More than 145,000 Metres of Drilling Planned for 2026 Abbey Lake Size Potential < 10,000 oz 10,000 – 50,000 oz 50,000 – 100,000 oz >100,000 oz Mishi Magnacon Exploration Priority Tier 4 Tier 5 Feather River Tier 6 Dorset Exploration Program Cameron Lake Ground geophysics Iron Forma
Slide 23: High-Grade Replacement Top Priority With Plenty of Near-Mine Opportunities
High-Grade Replacement Top Priority With Plenty of Near-Mine Opportunities 600 m mine shaft 1,700 tpd capacity W (ore & waste) E ERS-2025-027 720 11.0 g/t Au / 1.0 m 200 Falcon 25-355-07 Extension 200 32.6 g/t Au / 1.7 m 10 to 15 g/t Au ERS-2023-005 9.5 g/t Au / 1.3 m 500 OPEN 700 758-E-570 49.1 g/t
Slide 24: 6 Central Zone: Grown to More Than 600 Metres Down-Plunge Since Discovery
6 Central Zone: Grown to More Than 600 Metres Down-Plunge Since Discovery 25-805-02 25-805-12 36.0 g/t Au / 1.4 m 47.0 g/t Au / 3.4 m 758-E-561 33.8 g/t Au / 1.8 m 758-E-552 53.0 g/t Au / 1.5 m 758-E-533 21.4 g/t Au / 1.5 m 758-E-539 x +11250E 12.5 g/t Au / 1.5 m Mid-year 2024 resource shapes1 758-E
Slide 25: Mishi-Magnacon Corridor – 15 Kilometres of Opportunity
Mishi-Magnacon Corridor – 15 Kilometres of Opportunity Driven by New Geological Interpretation 11.5 g/t 6.1 g/t 25.8 g/t 51.5 g/t 2.6 g/t 2.4 g/t Mishi 0 250 500m 2.3 g/t HISTORIC DRILLING Magnacon Returned high-grade results that were never followed up Mill Mine (closed) Mill (operating) HISTORIC P
Slide 26: Multiple Potential Open Pit Opportunities Offer Long-Term Growth Potential
Multiple Potential Open Pit Opportunities Offer Long-Term Growth Potential Size Potential < 10,000 oz Abbey Lake 10,000 – 50,000 oz 50,000 – 100,000 oz >100,000 oz Exploration Priority Tier 4 Mishi Magnacon Feather Tier 5 River Tier 6 Dorset Open Pit Targets Eagle River Cameron Lake Mishi / Magnacon
Slide 27: Kiena Geology & Exploration
Kiena Geology | & Exploration
Slide 28: Kiena: Building Another Cornerstone Asset
Kiena: Building Another Cornerstone Asset OVERVIEW Decades of operational history. More than 2 million ounces of gold produced. OPERATIONAL MILESTONES 2003 2016 2024 2026 Wesdome acquires High-grade Kiena First production Record exploration program Kiena for $5M Deep discovered1 from Kiena Deep with
Slide 29: Kiena: Situated in the Heart of the World's Pre-eminent Greenstone Belt
Kiena: Situated in the Heart of the World’s Pre-eminent Greenstone Belt ONTARIO QUÉBEC Perron Fenn-Gib Amex Mayfair LaRonde Holt Holloway Agnico Eagle Agnico Eagle Novador Bell Creek Hoyle Pond Elder Westwood Fresnillo Taylor Pan American Discovery Silver Abcourt IAMGOLD Agnico Eagle Lapa Agnico Eag
Slide 30: Kiena: Underexplored and Surrounded by Multiple World-Class Deposits
Kiena: Underexplored and Surrounded by Multiple World-Class Deposits LAPA LAPA CADILLAC MALARTIC GP-2 MARITIME-CADILLAC PAN CANADIAN PAN CANADIAN NO 2 PAN CANADIAN NO 1 MALARTIC H NORTH CONTACT BLACK CLIFF MALARTIC HYGRADE PARBEC LUDOVICK KIERENS FERDERBER NORLARTIC SISCOE EAST AMPHI CAMFLO LAC HERB
Slide 31: Largely Unexplored Prolific Land Package at Kiena
Largely Unexplored Prolific Land Package at Kiena NORTHERN CORRIDOR Wesdome Mine (never mined - 205koz at 4.9 g/t inferred) Kiena land package Siscoe Mine K Shear Zone (past production - 882koz at 9.2 g/t -1929-1949) Gold trend Lake Norbenite Fault Land Marbenite Fault Resource shapes SOUTHERN CORRI
Slide 32: Two Major Corridors With High-Grade and Bulk-Tonnage Potential
Two Major Corridors With High-Grade and Bulk-Tonnage Potential Size Potential < 10 koz NORTHERN CORRIDOR 10 – 50 koz 50 – 100 koz Wesdome > 100 koz Exploration Priority Tier 4 Northwest Siscoe >= 8 g/t >= 8 g/t Tier 5 SOUTHERN Tier 6 CORRIDOR Zone134 Presqu’île Landmarks >= 8 g/t Kiena Exploration s
Slide 33: Most Known Areas Less Than 500 Metres Below Surface
Most Known Areas Less Than 500 Metres Below Surface; Shallow for the Abitibi NW-25-023 930 m mine shaft DU-24-003 DB-25-064 203.0 g/t Au / 1.2 m* 1,250 tpd capacity 19.2 g/t Au / 3.2 m* 8.1 g/t Au / 9.3 m* (ore & waste) 10.7 g/t Au / 9.3 m* DB-24-045 W Wisik 12.6 g/t Au / 9.8 m* E 17.0 g/t Au / 11.9
Slide 34: Three New High-Grade Lenses Highlight Potential of Kiena Deep
Three New High-Grade Lenses Highlight Potential of Kiena Deep Drill Intercept Legend N134-7110 N127-7063 15.3 g/t over 3.2 m* Drill trace BZA intercept 4.9 g/t over 6.0 m* -1 130m Existing development Footwall Zone intercept N134-7112 N127-7059 9.6 g/t over 9.7 m* Planned development Unassigned inte
Slide 35: Visible Gold and Multiple New Lenses Highlight B Zone Potential
Visible Gold and Multiple New Lenses Highlight B Zone Potential Drill Intercept Legend N134-7191 17.3 g/t over 1.8 m N125-7076 Drill trace 4.5 g/t over 4.0 m* N134-7170 B Zone intercept 6.5 g/t over 2.4 m* Unassigned intercept 5.6 g/t over 5.2 m* N125-7078 m* Estimated true width 3.1 g/t over 3.0 m
Slide 36: Looking for Discoveries Beyond the Norbenite Fault and in the VC Zone
Looking for Discoveries Beyond the Norbenite Fault and in the VC Zone 6752W10 10.0 g/t Au / 83.1 m Projection of North Zone N137-7152 Terminated at 541 m Norbenite fault Hole 6531 (VG) 43.6 g/t Au over 5.1 m VC Zone VC Zone resource shape Existing development Planned North Zone drilling Existing dev
Slide 37: Dubuisson a Potential Game Changer Delivering Impressive Grades and Widths
Dubuisson a Potential Game Changer Delivering Impressive Grades and Widths W E DB-24-045 VG 12.6 g/t Au over 9.8 m DB-25-068 from 409.3 – 452.0 m DB-25-064 (North) VG 8.1 g/t Au over 9.3 m DB-24-045 V VG 10.7 g/t Au over 9.3 m G VG 17.0 g/t Au over 11.9 m DB-24-038 (North) VG DB-24-045 5.2 g/t Au ov
Slide 38: Property-Wide Geophysics Highlights Multiple High-Priority Targets
Property-Wide Geophysics Highlights Multiple High-Priority Targets (Canadian Malartic Mineralisation age Wesdome 2665 to 2660 Ma) Snowshoe Callahan Mine Intrusive Siscoe (Non-NI 43-101 (produced 0.9Moz 0.2 Moz at 11.6 g/t) at 9.2 g/t) High Sullivan Presqu’île (produced 1.1Moz Bourlamaque at 7.7 g/t)
Slide 39: Multiple Opportunities Across the Property to Develop Bulk Tonnage Targets
Multiple Opportunities Across the Property to Develop Bulk Tonnage Targets Lithology Bulk Tonnage Intermediate intrusive Targets at Kiena Felsic volcanic Dubuisson (UG) Intermediate volcanic Shawkey (UG) Mafic volcanic 134 Zone UG) Ultramafic volcanic NORTHERN Pontiac (OP) Conglomerate CORRIDOR Wack
Slide 40: Unlocking Our Potential Through Exploration
Unlocking Our Potential Through Exploration High-Grade Global Model • Growth through • Potential to mine extensions of known untapped material zones Discoveries Optionality • Successful track record • Long-term open pit of adding ounces and bulk tonnage through discoveries opportunities 40
Slide 41: Building a Mid-Tier Gold Producer
Building a Mid-Tier Gold Producer
Slide 42: Daylighting Value and Optionality in Underexplored Land Packages
Daylighting Value and Optionality in Underexplored Land Packages Illustrative Production Profile Mill Utilization2 < 50% Mill Utilization 50-75% Target 100% Mill Utilization Mishi-Magnacon, Dorset, BIF, Potential Open Pits Abbey Lake, & Regional Targets Wesdome, Siscoe Dubuisson, VC Shallow Zones &
Slide 43: Investor Relations
Investor Relations Raj Gill SVP, Corporate Development & Investor Relations Trish Moran VP, Investor Relations Phone: +1 (416) 564-4290 Email: trish.moran@wesdome.com Careers @Wesdome Gold Mines Corporate Head Office 220 Bay St, Suite 1200 Toronto, ON M5J 2W4
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