Yukon Metals drills mineralized skarn at Birch project

Executive Summary

• Yukon Metals Corp. has released initial results from its 2025 drill program at the 100%-owned Birch Copper-Gold Project in Yukon, confirming the intersection of multiple mineralized skarn horizons.
• A total of 1,100 metres of diamond drilling was completed across three pad locations, with all holes intersecting mineralized skarn horizons; assay results are currently pending.
• The drilling encountered near-surface mineralization starting as shallow as 25 metres and thick, continuous intervals of intensely skarn-altered rock at depth (up to 46 metres in core), suggesting a large, multistage skarn system.

Key Details

• Drilling Progress: 1,100 metres of diamond drilling completed across three pad locations to depths of up to 400 metres.
• Target Area: Testing a 1.4-kilometre-long and up-to-400-metre-wide area of anomalous gold- and copper-in-soil values coincident with mapped limestone, schist horizons, and cross-cutting felsic intrusions.
• Soil/Rock Anomalies: The target area includes a 1.4-kilometre-long gold- and copper-in-soil anomaly grading up to 0.99 g/t Au and 0.24% Cu, with surface rock samples up to 14.1 g/t Au and 2.42% Cu.
• Mineralization Style: Retrograde skarn mineralization overprinting prograde skarn development with zones of massive garnet; prominent marble units and multiple phases of cross-cutting intrusive dikes.
• Interval Widths: Thickness of mineralized zones in drill core ranges from 0.2 to 46 metres.
• Hole BR25-001:
  • Intersected multiple shallow mineralized horizons.
  • Silicified schist with minor disseminated and vein-hosted pyrrhotite beginning around 60-metre depth.
  • Broader zone of stronger skarn horizon between 135 to 157 metres with chalcopyrite appearing alongside pyrrhotite in disseminated, vein, and semi-massive textures.
  • Intersected zones of sheeted quartz-calcite veining above main skarn horizons.
• Hole BR25-002:
  • Intersected mineralization as shallow as 50 metres within chlorite-amphibole skarn.
  • Strongly pyrrhotite-chalcopyrite-pyrite mineralized skarn horizon occurs at 125 metres on the top contact of a granodiorite dike.
  • Mineralization also occurs on the bottom contact of a feldspar porphyry dike unit with chalcopyrite and pyrrhotite.
• Hole BR25-003:
  • 250-metre stepout to the east.
  • Near-surface mineralization beginning at approximately 25 metres within skarn along the schist-marble contact.
  • Thick, continuous interval of intensely skarn altered rock from 256.5 to 302.5 metres (true thicknesses currently unknown).
• Geological Context: Mineralization suggests potential for a large, multistage skarn system developed along marble-schist contacts and intrusive margins.
• QA/QC: Core logged, photographed, and sawn; half submitted to ALS Minerals for analysis.

Notable Quotes

• "Multiple zones of mineralization have been encountered from near surface and substantially at depth. These early results suggest the Birch system has both scale and continuity, and we look forward to receiving assays to help guide the next steps of exploration," said Rory Quinn, president and chief executive officer of Yukon Metals.