Slide 1: Windfall Plan View Map
WF181 0.9 gpt Au/25.9m And 9.8 gpt Au/24.4m Windfall Plan View Map Legend e 2026 Completed Drillholes ~~ 2026 Planned Drillholes Block Model >0.17 gpt gold a Patented Claims _2°” High-Grade Cross-Fault 300 Meters
Slide 2: Trinity Ridge
Trinity Ridge At Trinity Ridge, located within the current limits of Gold Bar Mine, the Company is at the early stages of evaluating the potential to expand and merge three existing open pits into one larger pit. Recent drill results continue to support the Company’s development plans for the area,
Slide 3: Gibson / Whiskey Jack Zones
Gibson / Whiskey Jack Zones 050 100 180 200 —-_ | | Legend Lithology = Diabase ‘Syerite ‘Sediments Varilitic Matic Votcanics ‘Massive Matic Volcanics Pillowed Matic Volcanics Brecciated Ultramafic Voleanios Utramafic Voleanics Historical Assays (Au ot) other Symbols YE Hanignted Resuts EE Mineralize
Slide 4: In 2025, McEwen also completed a 6,500-meter drill program
In 2025, McEwen also completed a 6,500-meter drill program at the Stroud deposit that was acquired in 2024. Stroud is located 1,500-meters southwest of the current Grey Fox Mineral Resource area (Fig. 5). The drill program was designed to confirm the historical drilling in order to update the Minera
Slide 5: Tartan Mine Project, Manitoba (100% Owned)
Tartan Mine Project, Manitoba (100% Owned) Exploration at Tartan (Fig. 6) On March 23, 2026, the Company released a Mineral Resource Estimate for the Tartan Mine Project that will serve as the foundation for a potential restart of the mine. The underground Mineral Resource Estimate outlined 308,900
Slide 6: Tartan Mine Project - Main Zone Long Section
Tartan Mine Project - Main Zone Long Section Looking North * Lad Lud ‘Surface }— 250m TLMZ25-51W5S 3.0 gpt over 7.6m [soon TLMZ25-51W4 4.8 gpt over 7.9m. TLMZ26-52W1 TLMZ26-52W2 Stopover 135m 4.4 gpt over 5.0m TLMZ26-52W3 7" 9,6 gpt over 11.9m =P > Legend TLMZ26-52 @ 2026 Drill Hole 5.0 gpt over 6.4