Dakota Gold Intersects High-Grade Gold Mineralization in Expansion Drilling at Richmond Hill

Core Insights - Dakota Gold Corp. has reported assay results from 26 drill holes at the Richmond Hill Oxide Heap Leach Gold Project, confirming high-grade gold mineralization in the northern area, which supports the company's mining plans [1][2][4] Drilling Campaign - The ongoing 2025 drilling campaign aims to complete approximately 27,500 meters (~90,000 feet) of drilling, with two drills currently operating on site [2] - The results from the expansion drilling in the northeast corner of the project indicate significantly higher-grade gold than the average resource grade [6] Assay Results - Notable assay results include: - RH25C-278 intersecting 1.75 grams per tonne (g/t) gold over 19.9 meters - RH25C-295 intersecting 2.15 g/t gold over 30.0 meters - RH25C-270 intersecting 2.26 g/t gold over 29.2 meters - RH25C-288 intersecting 4.15 g/t gold over 14.5 meters [6][10] Project Development - The continuity and quality of the near-surface deposit at Richmond Hill suggest a low-cost, long-life project with high margins, as highlighted in the company's Initial Assessment earlier this year [4] - The metallurgical drilling results are expected to refine the model boundaries and improve the precision of geo-metallurgical domains for the feasibility and mine planning [5][6] Future Plans - The company plans to advance heap leach column testing and will provide updates on these results as they become available [4] - Additional assay results from expansion and infill drilling are anticipated through the fourth quarter of 2025 and into 2026 [4]