14 G/T Au Within 47M of GOLD-Bearing Skarn from 26M Depth IN 300M Step-Out at Birch Cu-Au Project
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14 G/T AU WITHIN 47M OF GOLD-BEARING SKARN FROM
26M DEPTH IN 300M STEP-OUT AT BIRCH CU-AU PROJECT
December 8, 2025 – Vancouver, British Columbia – 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 met ers 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 o ver 3.1%
copper equivalent - YMC News Release October 15, 2025) and Hole 3, located
300 met ers 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.”
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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 met er 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.
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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
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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.
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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 (Table 1, Figure 5).
A deeper interval returned 6.0 metres of 0.19 g/t Au within the same stratigraphic package.
Significant intercepts from Hole BR25-006 include:
• 0.9 m of 0.52% Cu and 21.1 g/t Ag from 61.0m
• 0.6 m of 1.22% Cu and 40.1 g/t Ag from 84.5m
• 6.0 m of 0.19 g/t Au from 270.0m
Figure 5 – Cross Section View of Hole BR25-001, BR25-002, and BR25-006 with
Copper Equivalent and Geologic Interpretation.
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Table 1: Highlighted Drill Hole Assay Intervals
Hole_ID From_m To_m Length_m Au g/t Ag g/t Cu % CuEq %
BR25-003 26.6 74.0 47.4 0.43 1.20 0.04 0.45
incl 35.9 45.5 9.6 0.32 2.25 0.06 0.38
And incl 45.0 45.5 0.5 3.70 27.90 0.60 4.38
incl 71.0 72.0 1.0 14.35 2.80 0.03 13.69
278.7 312.0 33.8 0.19 1.05 0.01 0.20
incl 309.8 312.0 2.3 0.92 1.24 0.01 0.89
BR25-006 61.0 61.9 0.90 0.09 21.10 0.52 0.8
and 84.5 85.1 0.6 0.37 40.10 1.22 1.95
and 213.0 214.5 1.5 0.25 0.60 0.01 0.25
and 270.0 276.0 6.0 0.19 0.65 0.01 0.19
Notes: True widths are not yet known but are estimated to be near true thickness based on current geological
interpretation.*Copper equivalent (CuEq %) values have been calculated using the formula: CuEq % = Cu % + (Au g/t ×
0.95) + (Ag g/t x 0.0095), based on metal prices of US $4.00/lb Cu, $3,000/oz Au, US $40/oz Ag. Recovery factors of
92% copper, 80% gold, and 60% silver wer e assumed based on a review of similar projects. No metallurgical test work
has yet been completed at Birch.
Next Steps
A new property -scale geological map (Figure 6) and cross section (Figure 7) integrate
updated mapping, geophysics, and multi -element geochemistry to outline a multi -pulse
intrusive system responsible for skarn and potential epithermal and porphyry style
mineralization at Birch. These datasets collectively highlight NW–SE trending intrusions as
the principal controls on alteration and metal zonation, with proximal Au –Ag–Mo–Bi–Te–
Cu enrichment grading outward into Pb–Zn–Sb halos. The resulting interpretation defines
several circled targets across the property, including zones of skarn potential, epithermal
potential, and porphyry potential, with the strongest clustering of indicators occurring south
of the current skarn prospect.
Figure 6 – Schematic cross -section across the Birch Project looking to the NW,
showing key intrusive and metasedimentary units.
Building on the strong results from the 2025 program, the next phase of work at Birch will
focus on step -out drilling down -dip to the south, where multiple datasets highlight the
potential for an intrusive center at depth (Figure 8).
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Additional infill drilling within the skarn zone is planned to improve continuity between the
2025 holes and refine the geometry of the stacked mineralized horizons. Yukon Metals will
also undertake detailed geological mapping in the southern portion of th e property and
complete IP surveying, targeting chargeability and resistivity anomalies consistent with
deeper sulfide or porphyry-style mineralization.
Figure 7 – Simplified geological map of the Birch Project showing key intrusive and
metasedimentary units.
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In parallel, the Company intends to begin systematic exploration of additional skarn and
epithermal targets identified through updated geological, geochemical, and geophysical
interpretations. These combined efforts will guide priority targets for the next drill campaign
and continue to expand the mineralized footprint at Birch.
Figure 8 – Location of 2025 Rock Samples collected near the soil molybdenum
anomaly on the southeast portion of the Birch property. 2024 Rock Samples are
shown with triangle symbols.