Yukon Metals Confirms Large Copper-Bearing System at the Az Project
625 Howe St., Suite 1290, Vancouver BC V6C 2T6 | yukonmetals.com
1290-625 Howe St. Vancouver BC V6C 2T6 | yukonmetals.com |
1
YUKON METALS CONFIRMS LARGE COPPER-BEARING
SYSTEM AT THE AZ PROJECT
September 18, 2025 – Vancouver, British Columbia – Yukon Metals Corp. (CSE: YMC,
FSE: E770, OTCQB: YMMCF) (“Yukon Metals” or the “Company) is pleased to announce
assay results from the inaugural 2025 drill program at its 100%-owned 13,110 hectare AZ
Project, located approximately 6 kilometres west of the Alaska Highway and 36 kilometres
south of Beaver Creek, Yukon. The program comprised five drill holes totaling 1,500 metres,
targeting two new areas: Chair Mountain and the Southeast Prospect.
The first-pass drilling program successfully intersected copper and gold mineralization
at both targets , supporting the Company’s geological models and suggesting they may
form part of a larger mineralized system.
Highlights:
• Inaugural drilling intersected multiple copper-bearing veins across four holes.
• Porphyry-style system at Southeast Prospect: Hole AZ25-004 cut increasing
potassic alteration at depth, interpreted as a vector toward a porphyry centre.
• Best intercept: 14.4m at 0.44% Cu, incl. 1.5m at 0.37 g/t Au (AZ25-001).
• Structural model emerging: Vein orientations at Chair Mountain align with
regional stress regimes and provide vectors for follow-up drilling.
“This is a big system and the right kind of copper system for a large tonnage
porphyry,” said Rory Quinn, President & CEO of Yukon Metals. “At Chair Mountain, we’ve
confirmed copper mineralization within a structural corridor, and at the Southeast Prospect
we have intersected classic porphyry-style alteration at depth. These initial results validate
our proof-of-concept program and confirm that the system is copper-bearing, fertile, and
gold-bearing across two distinct areas. With clear geological vectors now in hand, our
next phase of drilling will focus on stepping out toward the core of the porphyry system and
we will conclude the season with follow -up soil sampling and induced polarization
geophysics."
625 Howe St., Suite 1290, Vancouver BC V6C 2T6 | yukonmetals.com
2
Chair Mountain Drilling
Four holes (AZ25-001, -002, -003, and -005) were drilled at Chair Mountain to test near -
surface copper showings hosted in quartz–carbonate–chalcopyrite veins and a fault zone
between basalt volcanics and overlying volcaniclastic/siliciclastic rocks. AZ25 -001, -002,
and -005 were drilled from the same pad location. Assay intervals for AZ25 -001 begin at
10m due to incomplete core recovery in the Heavily faulted and fractured upper portion of
the hole. Hole AZ25 -005 was drilled on the same azimuth as AZ25 -001, but at a steeper
angle, following the early termination of the first hole due to difficult ground conditions.
Structural analysis indicates dominant SE-striking, steeply -dipping vein orientation s,
consistent with regional extensional stress regimes and aligning with surface mapping.
Copper mineralization (malachite, azurite, chalcopyrite) was intersected in multiple zones,
dominantly hosted in cm -scale quartz –carbonate veins. Best results include 14.4m at
0.44% Cu in hole AZ25-001, with high-grade subintervals up to 2.10% Cu over 0.9m, and
23.5 m at 0.13% Cu in hole AZ25-003. Up to 0.37 g/t Au was present near surface in
association with the copper mineralization in hole AZ25-001.
These results confirm the system is copper-bearing and open, with follow-up work planned
to refine targeting along the modeled vein orientations.
Southeast Prospect Drilling
Hole AZ25 -004 was a step -out hole targeting a zone of alteration and chalcopyrite
mineralization within a dioritic body intruded by porphyry dikes. Surface sampling in this
area during the 2025 program sampled up to 1.14% Cu and 5.73 g/t Au in an outcrop
exposure of intensely altered diorite with a band of chalcopyrite, pyrite, and minor bornite.
The hole collared into variably altered diorite with porphyry dikes in the upper 350m, where
alteration was dominated by propylitic assemblages with localized halo s of secondary
biotite and K-feldspar flooding adjacent to dikes. Below 350m, the character of alteration
changed to a consistent potassic overprint of K-feldspar, magnetite, and silica, more typical
of the inner zones of porphyry systems.
Structural observations indicate that the porphyry dikes dip steeply to the southwest, and
with the drill azimuth-oriented southeast, they were cut at shallow angles, progressing from
the hanging wall to the footwall downhole. This geometry suggests that the more
prospective potassic alteration encountered at depth may project back to surface to
the northeast of the drill trace, potentially defining a vector toward the centre of the
porphyry system.
625 Howe St., Suite 1290, Vancouver BC V6C 2T6 | yukonmetals.com
3
Figure 1 – AZ property map showing rock-chip samples with tilt derivative of the
reduced-to-pole magnetic field shaded colour contour map (Open File 2020-35).
The 2025 exploration program at the AZ Project confirmed the presence of multiple
porphyry-style indicators, including potassic alteration, chalcopyrite -bearing veins,
magnetite skarn, and structurally controlled epithermal mineralization. A refined
geological model now shows a coherent intrusive –volcano sedimentary architecture
consistent with porphyry -skarn systems. While high -grade mineralization was
widespread in the first drill holes, alteration zoning, geochemistry, and mineralogy all
point to proximity to a porphyry center. These results provide a strong foundation for
ongoing geophysical and geochemical surveys to refine targets for future drilling.
625 Howe St., Suite 1290, Vancouver BC V6C 2T6 | yukonmetals.com
4
Figure 2 – Oblique view of copper assay results in Chair Mountain drillholes AZ25-001,
AZ25-002, AZ25-003, AZ25-005.
625 Howe St., Suite 1290, Vancouver BC V6C 2T6 | yukonmetals.com
5
While Hole AZ25-004 did not return economic copper grades, it successfully confirmed the
presence of porphyry -style alteration and mineralization, establishing a clear exploration
target for follow-up drilling.
Figure 3 – Oblique view of copper assay results at the SE prospect in drillhole AZ25-
004.
Yukon Metals is a well-financed exploration company with a 17-project portfolio covering
more than 43,000 hectares. Built on over 30 years of Berdahl family prospecting, the same
team behind Snowline Gold’s district-scale assets, YMC provides exposure to copper, gold,
silver, and critical metals. While advancing high -priority drill targets at the Birch and AZ
copper-gold systems and the Star River gold -silver project, the Company is also
conducting generative exploration across its broader portfolio to develop the next pipeline
of discovery opportunities . Guided by an experienced leadership team with technical,
financial, and Yukon expertise, the Company is well positioned to unlock new mineral
discoveries across the Yukon territory.
625 Howe St., Suite 1290, Vancouver BC V6C 2T6 | yukonmetals.com
6
Table 1: Significant Drill Results at AZ Project
Hole_ID From_m To_m Length_m Cu % Au g/t
AZ25-001 10.2 24.5 14.4 0.44
incl 15.5 17.0 1.5 0.37 0.37
incl 17.6 18.5 0.9 2.10
and 32 32.72 0.7 0.48
and 54.4 73.6 19.2 0.12
AZ25-002 4.0 5.2 1.2 0.11
AZ25-002 172.0 190.82 18.8 0.04
AZ25-003 325 348.5 23.5 0.13
incl 334.5 337.1 2.7 0.46
and incl 345.0 345.5 0.5 1.50
AZ25-004 243.5 246 2.6 0.15 0.27
and 281.3 282.0 0.8 0.11 0.15
AZ25-005 6.6 16.1 9.5 0.11
Reported intervals represent downhole lengths, not true widths. Insufficient drilling has been
completed to determine true thickness at this time. Intervals reported are based on
recovered core only; zones of no recovery have been excluded from the reported lengths.
Next Steps
The Company will advance a series of surface programs during September 2025 designed
to refine exploration vectors and prioritize future targets. A regularly -spaced contour soil
sampling program will be completed to delineate coincident geochemical anomalies
expected around porphyry, skarn, or epithermal mineralization. Samples will be analyzed by
multi-element ICP-MS, with coarse rejects submitted for hyperspe ctral analysis to build an
integrated geochemical and mineralogical dataset useful for vectoring toward concealed
mineralization.
The upcoming exploration program will also include geophysical surveys. A ground-based
induced polarization (IP) survey is planned to detect chargeability and resistivity anomalies
linked to altered and mineralized rocks. A high -resolution airborne magnetic survey will be
flown to differentiate between background magnetite and alteration -related magnetite, and
to help identify potent ial magnetite skarn systems. Both datasets will be processed to
improve interpretation in areas where magnetic highs are overp rinted by magnetite -
destructive alteration.
625 Howe St., Suite 1290, Vancouver BC V6C 2T6 | yukonmetals.com
7
Additional hyperspectral and petrographic studies will be undertaken on select samples to
refine the mineralogical framework and improve understanding of alteration and intrusive
phases.
Figure 4 – Porphyritic intrusion with 1mm quartz-pyrite stringers throughout. Copper
assay of 0.25% and 0.5 g/t Au in interval from 244.5-245.44m in hole AZ25-004.
625 Howe St., Suite 1290, Vancouver BC V6C 2T6 | yukonmetals.com
8
Figure 5 – Volcaniclastic unit with strong chlorite alteration throughout. Common
centimetre-scale quartz-carbonate veining hosting chalcopyrite (339.5m), occasionally
rimmed by malachite and pyrite (340.5m). Sample assayed 1.5% copper from 345-
345.5m in hole AZ25-004.