Visible Copper Mineralization in Drill Core and ROCK Samples up to 26% Copper and 5.73 Grams per Tonne GOLD at Yukon Metals’ Az Property
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VISIBLE COPPER MINERALIZATION IN DRILL CORE AND
ROCK SAMPLES UP TO 26% COPPER AND 5.73 GRAMS PER
TONNE GOLD AT YUKON METALS’ AZ PROPERTY
August 7, 2025 – Vancouver, British Columbia – Yukon Metals Corp. (CSE: YMC, FSE:
E770, OTCQB: YMMCF) (“Yukon Metals ” or the “ Company”) is pleased to provide an
update from its inaugural drill program at the 100%-owned 13,100-hectare AZ Project located
approximately 6 kilometres west of the Alaska Highway and 36 kilometres south of the
community of Beaver Creek, Yukon. Drilling and surface work completed in June and
July appear to confirm the presence of a large-scale copper-bearing system at the AZ
Property supported by significant subsurface copper mineralization and high -grade grab
samples across the broader project area.
AZ Highlights:
• Preliminary visuals from Hole 4 shows visible copper mineralization, located
in a newly tested target area; core photos shown below.
• Prospecting samples up to 26.0% Cu and up to 5.73 g/t Au collected in multiple
areas across the property.
• Five diamond drill holes totaling 1500 metres have been completed as of July;
assays are pending for Holes 1 to 5.
"It is very encouraging to see visible copper mineralization in core from multiple drill
holes in previously untested areas at the AZ Project, ” said Rory Quinn, President and
CEO of Yukon Metals. “Combined with the high-grade copper and gold identified in surface
samples, we are just beginning to uncover the potential of this system . We look forward to
receiving assays and advancing our next-phase exploration efforts."
Hole 4 of the 2025 AZ exploration program tested a new porphyry target characterized by
strong potassic alteration and visible copper sulphide mineralization within dioritic rocks
cut by porphyry dikes. Surface sampling of outcrop near the collar location returned
notable copper of 1.14% and gold of 5.73 g/t (Sample K155053), with in chalcopyrite
and minor bornite in disseminated and vein-hosted textures.
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The alteration zone covers approximately 2 square kilometres and is interpreted to
represent a lateral or upper expression of a porphyry copper system. The target is located
on the edge of a regional magnetic high identified in the tilt derivative of reduced -to-pole
(RTP) magnetic data (YGS Open File 2020-35), indicating potential proximity to a deeper or
more strongly mineralized source at its center. Visual inspection of Hole 4 core confirms
copper-bearing sulphides consistent with a porphyry copper model. Assays from Hole 4 are
pending; representative core photos are included below.
Figure 1 – Altered diorite with pyrite and chalcopyrite in veining and disseminated, from AZ25-
004 at 135 metres.
Figure 2 – Altered diorite intersected in AZ25 -004 located at the New Target Zone. Partially
hematized magnetite visible along with disseminated and veined pyrite -minor chalcopyrite
throughout.
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Figure 3 – Diorite with quartz-pyrite-chalcopyrite veining at 51.7m in hole AZ25-004.
Figure 4 – Map showing 2025 AZ Property-wide rock-chip samples with Tilt Derivative of the
Reduced-to-Pole Magnetic Field Shaded Colour Contour Map (Open File 2020-35).
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Figure 5 – Sample K140134 in historical trench at Marilyn Creek, grading 2.64% Cu.
Figure 6 – Sample K155456 from the AZ Skarn occurrence, grading 26.7% Cu and 1.84 g/t Au.
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Figure 7 – Sample K140142 from the AZ skarn occurrence, grading 6.7% Cu and 5.11 g/t Au.
Figure 8 – Float sample K155003 of oxidized vein found in a new area in the central part of the
AZ claim block, grading 2.16 % Cu and 4.95 g/t Au.
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Figure 9 – Sample K155053 from outcrop exposure near drill hole AZ25-004, intensely altered
diorite with band of chalcopyrite, minor bornite, and pyrite hosting 1.14% Cu and 5.73 g/t Au.
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Table 1 - Rock Sample Highlights. Samples containing over 0.05% Cu or over 1 gram per
tonne Au shown below.
Sample % Cu g/t Au Type
K155456 26.70 1.84 Float
K140142 6.69 5.11 Float
K155454 3.83 0.01 Outcrop
K140134 2.64 0.01 Subcrop
K155003 2.16 4.95 Float
K137177 1.93 0.00 Subcrop
K140135 1.45 0.01 Outcrop
K155077 1.41 0.01 Subcrop
K155053 1.15 5.73 Outcrop
K137176 0.97 0.00 Subcrop
K137226 0.95 0.00 Outcrop
K155036 0.87 0.33 Subcrop
K155022 0.63 0.03 Outcrop
K155161 0.56 0.01 Outcrop
K137207 0.53 0.01 Outcrop
K140136 0.51 0.01 Float
K140137 0.46 0.00 Float
K155035 0.37 0.04 Outcrop
K137330 0.35 0.32 Outcrop
K137239 0.33 0.12 Float
K155180 0.27 0.07 Float
K155018 0.27 0.24 Outcrop
K157512 0.23 0.10 Outcrop
K155013 0.22 0.18 Outcrop
K140144 0.18 0.02 Outcrop
K155009 0.17 0.07 Outcrop
K137238 0.17 0.00 Float
K137339 0.16 0.36 Outcrop
K140149 0.15 0.03 Outcrop
K137241 0.15 1.11 Outcrop
K155040 0.14 0.05 Outcrop
K155023 0.14 0.05 Outcrop
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Sample % Cu g/t Au Type
K137334 0.13 0.08 Outcrop
K155099 0.12 0.03 Outcrop
K137171 0.11 0.00 Subcrop
K155081 0.11 0.06 Subcrop
K155055 0.10 0.09 Float
K155048 0.08 0.01 Outcrop
K137342 0.08 0.12 Subcrop
K155101 0.08 0.02 Outcrop
K157604 0.08 1.52 Outcrop
K137347 0.08 0.08 Outcrop
K155060 0.08 0.01 Outcrop
K155164 0.08 0.01 Outcrop
K137235 0.08 0.01 Subcrop
K137331 0.07 0.03 Subcrop
K137204 0.07 0.00 Outcrop
K155195 0.07 0.01 Outcrop
K155457 0.07 0.04 Outcrop
K137343 0.07 0.03 Outcrop
K137201 0.06 0.00 Float
K155086 0.06 0.19 Subcrop
K157601 0.06 0.04 Outcrop
K155177 0.06 0.01 Subcrop
K137172 0.06 0.00 Subcrop
K155067 0.05 0.03 Subcrop
K155194 0.05 0.11 Outcrop
K155025 0.05 0.80 Outcrop
K137170 0.05 0.00 Subcrop
K137217 0.05 0.00 Outcrop
K137164 0.05 0.00 Subcrop
K157506 0.05 0.03 Outcrop
K155056 0.04 2.02 Outcrop