McEwen Mining: Highlights from 2024 Drilling at the Recently Acquired Timberline Property Assay Highlights:

Core Insights - McEwen Mining Inc. has announced positive drill results from its Windfall Project, indicating significant gold mineralization and continuity along a 1.6-km section of the Windfall fault zone [1][2][15] Summary by Sections Drill Results - The initial 27-hole drilling program revealed several significant intersections, including: - WF006: 2.85 g/t Au over 33.5 m from 64.0 m (0.083 oz/T Au over 110 ft), with an inclusion of 6.96 g/t Au over 10.7 m from 83.8 m (0.203 oz/T Au over 35 ft) [1] - WF018: 1.57 g/t Au over 48.8 m from 80.8 m (0.046 oz/T Au over 160 ft) [1] - WF012: 1.47 g/t Au over 38.1 m from 41.1 m (0.043 oz/T Au over 125 ft) [1] Historical Context - Historical mining at the Windfall Mine produced 24,000 oz of gold at a grade of 12.6 g/t Au in the early 1900s and 112,000 oz at a grade of 1.4 g/t Au during the early 1980s [2] Mineralization Characteristics - Gold mineralization is found within silicified and decalcified breccia in the Windfall fault zone, extending for 3.2 km (2 miles) [7] - The mineralization starts within 7.6 meters (25 ft) down-hole and extends to over 152.4 meters (500 ft), indicating open mineralization at depth and along strike [9] Drilling Strategy - The drilling program aimed to evaluate and confirm historical results by drilling angled holes across the fault zone, targeting areas just beneath historical pits [8] - Of the 27 holes drilled, 15 intersected oxidized gold mineralization grading above 0.50 g/t Au over thicknesses of at least 3.0 m [10] Future Plans - Additional drilling is planned to further explore the mineralized area, which is located on patented claims, potentially allowing for a shorter permitting timeline [15]