14 G/T Au Within 47m of Gold-Bearing Skarn from 26m Depth in 300m Step-Out at Birch Cu-Au Project VANCOUVER, British Columbia, Dec. 08, 2025 (GLOBE NEWSWIRE) -- Yukon Metals Corp. (CSE: YMC, FSE: E770, OTCQB: YMMCF) (“ Yukon Metals ” or the “ Company ”) is pleased to announce results from the last two holes of the 2025 drill program at its 100% owned 7,000-hectare Birch Copper-Gold Project (“Birch”), located 65 kilometers northeast of Burwash Landing, one of 17 assets across 43,000 hectares held in the Yukon. The Company has received assays from two additional drill holes, BR25-003 and BR25-006, expanding the mineralized footprint by 300m and introducing a substantial gold component to the system . Highlights: Hole BR25-003, drilled 300 meters northeast of Hole 1, intersected 47.4 meters of 0.43 g/t Au in gold-bearing stratigraphy from 26.6m below surface, including 1 meter from 71m grading 14.35 g/t Au , significantly expanding the skarn system to the northeast. Hole BR25-001 and Hole BR25-003 collectively demonstrate strong lateral continuity within the stacked skarn horizons , with Hole 1 returning 21.2 meters of copper-bearing skarn from 138.8m (including multiple intervals over 3.1% copper equivalent - YMC News Release October 15, 2025 ) and Hole 3, located 300 meters to the northeast, expanding the system into a gold-dominant domain (Figure 1). A second gold-bearing skarn horizon was intersected at depth in BR25-003 , returning 33.3 meters of 0.19 g/t Au from 278.7m, representing a separate phase of mineralization within similar favourable stratigraphy. Prospecting 2km south of the drilled area returned up to 16g/t Au, 1,825 g/t Ag, and 0.43% Cu in surface rock samples from an area coincident with a large, prospective molybdenum soil geochemical anomaly (Figure 8). “These results are a tremendous finish to the 2025 program.”, s aid Rory Quinn, President & CEO. “The latest drilling confirms that the mineralized system extends well beyond our initial discovery and transitions into a gold-rich domain carrying the highest-grade gold we’ve ever seen at Birch. When combined with copper-bearing intervals from previously released holes and our updated geological model, the property now demonstrates very strong potential for a much larger, multi-style mineralized system. We’re heading into the next phase of work with real momentum and a clear path forward at the Birch discovery .” Drill Results The 2025 drill program at Birch consisted of 1,685m of HQ diamond drill core in six holes off 4 pads. BR25-003 Hole BR25-003 collared 300 metres northeast of Hole 1 intersected a 47.4-metre interval (26.6–74.0 m) of gold-bearing stratigraphy dominated by marble with multiple skarn horizons. Figure 1 – 2025 Drill Location Map with Overlain 2024 Soil Copper Anomaly. Gold grades within these skarn zones are significantly higher than those reported from Hole 1, including a high-grade section grading 14.35 g/t Au over 1.0 meter at 71.0m depth (Table 1, Figure 2). Notably, gold in this upper interval occurs with minimal arsenic , a geochemical signature commonly associated with higher-temperature skarn environments and potentially more proximal positions relative to a porphyry source. YMC is investigating a large molybdenum soil geochemistry high, which overlaps favourable rock geochemistry and a radiometric anomaly, 2km to the south of the drill holes as a potential porphyry system (Figure 8). The marble units occur closer to surface in this area, suggesting Hole 3 intersected a deeper portion of the stratigraphic sequence, providing a more complete view of the mineralized package. A second, deeper skarn horizon was intersected between 278.7 and 312.0 meters, returning 33.8 meters of 0.19 g/t Au , including 2.3 meters of 0.92 g/t Au at the lower contact of the marble package (Figure 3, Figure 4). This geochemical contrast between the upper and lower horizons supports the interpretation of stacked gold-bearing skarn horizons within the same favourable stratigraphy and may reflect zonation patterns typical of porphyry-related mineral systems. Significant intercepts from Hole BR25-003 include: 47.4 m of 0.43 g/t Au from 26.6 m, including 0.5 m of 3.70 g/t Au, 27.9 g/t Ag and 0.60% Cu and 1.0 m of 14.35 g/t Au. 33.3 m of 0.19 g/t Au from 278.7 m including 2.3 m of 0.92 g/t Au. Figure 2 – Hole BR25-003 at 71m containing high-grade gold mineralization in strongly altered skarn surrounding a silica-sericite altered oxidised porphyritic dyke Figure 3 – Hole BR25-003 at 305m. Intensely altered gold-mineralized skarn horizon dominated by retrograde chlorite-actinolite-quartz alteration. . Figure 4 – Cross Section View of Hole BR25-003 with Copper Equivalent and Geologic Interpretation. BR25-006 Hole BR25-006 tested additional horizons, downslope 200m to the north from Hole 1, within the marble-skarn sequence and encountered several narrow copper-gold-silver-bearing skarn intervals (Figure 6), including 0.6m of 1.22% Cu and 40.1 g/t Ag