First Drill Hole Confirms High-Grade Copper Skarn Mineralization at the Birch Project
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FIRST DRILL HOLE CONFIRMS HIGH-GRADE COPPER
SKARN MINERALIZATION AT THE BIRCH PROJECT
October 15, 2025 – Vancouver, British Columbia – Yukon Metals Corp. (CSE: YMC,
FSE: E770, OTCQB: YMMCF) (“Yukon Metals” or the “Company) is pleased to announce
initial results from the 2025 drill program at its 100% owned Birch Copper -Gold Project
(“Birch”), located 65 kilometers northeast of Burwash Landing, Yukon. The Company has
received assays from the first drill hole, BR25 -001, along with promising surface sample
results from prospecting a geochemically anomalous zone 2 kilometers south of the drilling.
Highlights:
• The i nitial drill hole encountered stacked skarn horizons containing copper
mineralization over lengths of up to 21.2 meters, including multiple intervals over
3.1% copper equivalent.
• Drilling intersected skarn horizons extending along a 750-meter strike east-west
(Figure 1) ; Hole 3 , a 250 -meter step -out to the east, encountered near -surface
mineralization beginning at ~25 meters and a 46-meter thick, continuous interval
of intensely skarn altered rock from 256.5 to 302.5 meters (News Release
September 3, 2025).
• Prospecting 2km south of the drill pad 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 molybdenum
soil geochemical anomaly (Figure 6).
“Our team is very encouraged by results from the first of six drill holes at Birch,” said Rory
Quinn, President & CEO. “We are seeing clear evidence of a copper-gold skarn system,
with high -grade zones and strong alteration along intrusive contacts. Early signs of a
porphyry-style source are compelling , and we are particularly eager to see what
emerges from Holes 3 and 4, spaced 750 met ers apart within the 1400-meter-long skarn
trend, with Hole 4 located within a surface high-grade gold anomaly.”
Drill Results
The 2025 drill program at Birch consisted of 1,685m of HQ diamond drill core in six holes
off 4 pads (Figure 1). Highlights from Hole BR25-001:
• 21.2m of 0.30% Cu (0.41% CuEq*) from 138.8m to 160m including 2.5% Cu with
0.55 g/t Au and 18.5 g/t Ag (3.2% CuEq) from 145.45–146.00m and 2.7% Cu with
0.55 g/t Au and 24.1 g/t Ag over 1.0m (3.5% CuEq) from 150.0–151.0m (Figure 2).
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Figure 1 – 2025 Drill Location Map with Overlain 2024 Soil Copper Anomaly.
• BR25-001 intersected several copper and gold bearing skarn horizons hosted in
schist units adjacent to intrusive contacts. These high -grade zones occur within
foliated skarn units containing disseminated and banded sulfides.
Table 1: Highlighted Drill Hole Assay Intervals
Hole ID From_m To_m Length_m Cu % Au g/t Ag g/t CuEq_%*
BR25-001 138.8 160.0 21.2 0.30 0.08 3.81 0.41
and incl 145.5 146.0 0.6 2.50 0.55 18.5 3.20
incl 150.0 160.0 10.0 0.39 0.10 5.76 0.53
and incl 150.0 151.0 1.0 2.70 0.55 24.1 3.45
and 283.0 283.9 0.9 0.00 1.50 0.25 1.43
and 285.4 286.0 0.6 0.45 0.45 5.20 0.93
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 were assumed based on a review of similar projects. No metallurgical test work
has yet been completed at Birch.
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Figure 2 – Hole BR25-001 at 149m: close-up of massive pyrrhotite > chalcopyrite
within skarn horizon grading 2.7% Cu, 0.55% Au, and 24.1 g/t Ag.
Figure 3 – Cross Section View of Hole BR25-001 with Copper Equivalent and
Geologic Interpretation.
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Figure 4 – Hole BR25-001 from 144m. Massive pyrrhotite > chalcopyrite zones within
skarn horizons hosting up to 2.7% Cu and 0.55 g/t Au.
In addition, BR25 -001 contained a particularly interesting section at around 311m depth,
consisting of a crowded porphyritic intrusion with pervasive silica alteration (Figure 6). The
interval hosts minor disseminated sulphides that returned geochemically anomalous copper
values ranging from 350 to 575 ppm. Early interpretations suggest the unit dips south and
may be related to subcropping mineralized dykes mapped approximately 2 km to the south
and identified during the 2025 prospecting program.
Figure 5 – Hole BR25-001 around 311m. Crowded porphyritic intrusion unit with minor
disseminated sulphides and anomalous copper values.
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Prospecting Results South of Birch Drill Area
Prospecting 2km south of the drill pad 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 molybdenum soil
geochemical anomaly.
A total of 133 rock samples were collected across the Birch property during the 2025
program, including 43 samples from an area located approximately 2 km south of the drilling
area (Figure 4). This southern target, first identified by a molybdenum -in-soil anomaly in a
2012 grid and partially confirmed by Yukon Metals’ 2024 soils (News Release, October 16,
2024), is underlain by a potassium/thorium low in airborne geophysical surveys and has
limited bedrock exposure. Sampling focused on float and subcrop boulders, which are
considered near -source given the absence of glacial till overburden and low downslope
transport of frost-heaved blocks.
Of the 43 samples collected in this region, 13 returned anomalous values in one or more of
Au, Ag, Cu, Mo, Pb, W, or Zn (Table 2). Highlights from Birch Sampling Program:
• 16.0 g/t Au , 667 g/t Ag, 0.027% Cu, 81 ppm Mo, and 1.53% Pb from quartz -
carbonate vein float with arsenopyrite, pyrite, and sulfosalts.
• 9.3 g/t Au , 1,115 g/t Ag, 0.20% Cu, and 5.96% Pb from a vein in subcrop with
10–15% sulfides, dominated by arsenopyrite and sulfosalts.
• 7.73 g/t Au , 1,825 g/t Ag , 0.43% Cu, and 1.58% Pb from vein float containing
arsenopyrite, pyrite, galena, and sulfosalts.
• 2.98 g/t Au, 573 g/t Ag, 0.07% Cu, and 0.75% Pb from a quartz-epidote vein with
arsenopyrite, chalcopyrite, and sulfosalts.
• 2,320 ppm Mo , 0.1% Cu, and 1% pyrrhotite from a skarn horizon developed in
limestone subcrop.
The diversity of lithologies and mineral associations, including quartz-carbonate and quartz-
epidote veining, altered diorite, schist, and skarn horizons , points to a broad hydrothermal
footprint with multiple mineralizing pulses.
High silver and lead values correlate with sulfosalt and galena -rich samples, while
molybdenum enrichment and associated copper in skarn float suggest proximity to a
porphyry-style source. This southern anomalous area is interpreted as potentially linked to
the mineralized skarn horizons intersected in the 2025 drilling, possibly marking a feeder
zone or the outer expression of a buried porphyry system.
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Figure 6 – 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.
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Table 2 – Highlighted 2025 Rock Samples from Southeast Birch
Sample Au g/t Ag g/t Cu
%
Mo
ppm
Pb
ppm
Sb
ppm
W
ppm
Zn
ppm Type Lithology
K155346 <0.05 <0.5 0.02 5 1 3 470 69 Float Schist
K155352 16.00 667 0.03 81 15,300 3,800 5 189 Float Quartz Vein
K155353 9.30 1,115 0.20 1 59,600 >10,000 5 3,470 Subcrop Quartz Vein
K155354 7.73 1,825 0.43 3 15,800 >10,000 5 2,890 Subcrop Quartz Vein
K155355 2.19 87 0.03 20 6,070 255 5 81 Subcrop Quartz Vein
K155357 1.52 602 0.02 125 17,400 268 5 72 Subcrop Quartz Vein
K155362 0.36 3 0.00 17 150 7 5 42 Float Diorite
K155365 0.02 <0.5 0.01 90 5 3 290 104 Subcrop Skarn
K155366 0.01 <0.5 0.00 2,320 6 5 160 69 Subcrop Skarn
K155367 0.41 <0.5 0.02 13 13 3 570 27 Subcrop Diorite
K155370 0.19 2 0.00 2 122 3 5 4 Float Schist
K155371 2.98 573 0.07 49 7,480 133 5 839 Float Quartz Vein
K155372 0.86 116 0.02 6 15,950 68 10 620 Float Schist
Table 3 - 2025 Birch Drill Hole Locations
Hole ID Easting Northing Elevation Total Depth (m) Core Size
BR25-001 648314 6859029 1562 350 HQ
BR25-002 648314 6859029 1562 401 HQ
BR25-003 648587 6859167 1478 339 HQ
BR25-004 647780 6859057 1550 285 HQ
BR25-005* 648317 6859295 1437 36 HQ
BR25-006 648317 6859295 1437 273 HQ
*BR25-005 was ended early and redrilled due to poor ground conditions.
About the Birch Project
Yukon Metals owns 100% of the helicopter -accessed Birch project located 65 kilometres
northeast of the community of Burwash Landing. The Birch project area is dominated by frost-
heaved boulders in unglaciated terrain, with outcrop present on steeper ridges . The project
lies predominantly within the Finlayson assemblage of the Yukon-Tanana Terrane, consisting
of variably carbonaceous schist and quartzite, marble, garnet amphibolite and rare
metaplutonic rocks.
The Yukon-Tanana Terrane structurally overlies the Ruby Range Batholith which is regionally
mapped in the northeastern portion of the property occurring as Ruby Range quartz-feldspar
porphyry and Rhyolite Creek porphyry and intermediate and felsic volcanic rock (Israel et.
Al., 2011).
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Project-level mapping indicates the geology of the area is comprised of schists and marble
units, moderately to strongly oxidised felsic intrusive, and patchy oxidised porphyritic rhyolite
dykes.
Yukon-based and Local First Nation Contractors Engaged
Drill pad construction at the Birch Property was completed by Minconsult in partnership with
Vision Quest Drilling, a Kluane First Nation citizen -owned company. Helicopter support is
being provided by Yukon-based Capital Helicopters. Drilling services were contracted to New
Age Drilling in partnership with Vision Quest Drilling. Camp services were delivered by
Käganì, a Kluane First Nation citizen -owned enterprise, in partnership with long -standing
Yukon-based exploration contractor Archer Cathro.
QAQC
All diamond drill core from the 2025 program at the Birch Project was logged, photographed,
and sawn in half using a diamond blade core saw. One half of the core was submitted for
geochemical analysis, while the other half was retained in secure storage for reference.
Sampling intervals were determined based on geological boundaries and typically ranged
0.3- 1.5 meters. Control samples comprised approximately 10% of all samples submitted,
including certified reference standards, analytical blanks, field dup licates, and preparation
duplicates. QA/QC results were reviewed in real time, and all data have been verified as
meeting acceptable thresholds for accuracy, precision, and contamination before inclusion in
this release.
Drill core and rock samples were sent to ALS Minerals for analysis with sample preparation
in Whitehorse, Yukon and analysis in North Vancouver, British Columbia. Samples were
prepared by crush to 70% passing 2mm, 250g split pulverised better than 85% pass ing 75
microns (Prep-31A). Pulp samples were analysed for 34 elements by four acid digestion and
ICP-AES (ME-ICP61). All samples were analyzed for gold by fire assay and AAS with a 50g
nominal sample weight (Au-AA24). Samples over 10,000 g/t Cu were assayed by Ore grade
Cu- Four Acid (Cu-OG62).
Rock samples taken while prospecting referenced in this release are selective in nature and
collected to determine the presence or absence of mineralization and may not be
representative of the mineralization hosted on the project.
Qualified Person
The technical content of this news release has been reviewed and approved by Helena
Kuikka, P.Geo., VP Exploration for Yukon Metals and a Qualified Person (as defined by
National Instrument 43-101).