Stallion Uranium Refines Coyote Target with Highly Conductive Anomalies from Ground EM Survey
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STALLION URANIUM REFINES COYOTE TARGET WITH HIGHLY
CONDUCTIVE ANOMALIES FROM GROUND EM SURVEY
Vancouver, British Columbia - July 21st, 2025 - Stallion Uranium Corp. (the “Company” or
“Stallion”) (TSX-V: STUD; OTCQB: STLNF; FSE: FE0) is pleased to announce the results from
a Stepwise Moving Loop, Time Domain Electromagnetic ( “SWML-TDEM”) survey completed
over the high-priority Coyote Target on its Moonlite Project (Figure 1). The Coyote Target,
located within the Southwestern Athabasca Basin spans claims held in partnership with Atha
Energy Corp. (“Atha Energy”) (TSX -V: SASK ) as well as claims that are 100% owned by
Stallion Uranium.
“These results confirm the presence of strong basement conductors beneath the
Athabasca Basin sandstone, with characteristics consistent with major uranium
discoveries,” stated Darren Slugoski, VP Exploration for Stallion Uranium. “Conductor -
Coyote_14.25S, in particular, stands out as a high-priority drill target, supported by both
strong geophysical response and a coincident gravity low ; suggesting possible uranium
alteration.”
“Coyote continues to prove one of the most promising targets in our portfolio,” added
Slugoski. “With strong geophysical signatures and favourable structural settings, we
believe the area has potential to host a new basement-hosted uranium discovery.”
Highlights:
Stallion deployed cutting-edge Stepwise Moving Loop Time Domain EM (SWML-TDEM)
technology, specifically designed for high-resolution imaging of basement-hosted uranium
targets beneath Athabasca sandstone cover
The survey revealed three distinct basement conductors, including two high-priority
anomalies with strong conductance levels (>10 S), directly comparable to those seen at
major uranium discoveries
Utilizing Abitibi Geophysics’ proprietary ARMIT-TDEM sensor paired with a SMARTem24
receiver, the system achieved exceptional signal clarity and depth detection of up to 1,000
meters; key for targeting deep-rooted uranium-bearing structures
All conductors lie within a gravity low; interpreted as potential uranium alteration
Electromagnetic modeling confirms tabular geometry, depth potential, and favorable dips;
critical vectors for high-grade basement-hosted uranium
Project is 100% permitted for drilling and targeting underway for Stallion’s first drill test of
this highly prospective corridor
Key Conductors Identified:
Conductor: Conductance: Geometry
Quality:
Depth
Potential: Priority:
Coyote_14.25S 14.25 S (Strong) Excellent 425 m High
Coyote_10.7S 10.7 S (Strong) Good 425 m High
Coyote_6.7S 6.7 S (Moderate) Good 425 m Moderate
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Figure 1: Results of SWML Plate Modeling over Ground Gravity Survey Inversion
25 m below Unconformity
Interpretation:
Conductor - Coyote_14.25S is a strong, discrete, and tabular anomaly extending 1,750 m along
strike and 1,000 m in depth, dipping steeply to the southeast. Its conductance of 14.25 S places
it at the upper range for Athabasca-style graphitic shears.
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Conductor - Coyote_10.7S shares similar orientation and conductance (10.7 S) and is located
along a lithological or structural contact; potentially a conduit for uranium-bearing fluids.
Conductor - Coyote_6.7S is a moderate conductor with a strong geometric signature, likely
representing a brittle fault zone or narrow graphitic shear.
All three conductors are located within or proximal to a regional gravity low anomaly, interpreted
as possible zones of uranium alteration, structural thickening, or basement faulting—key
ingredients for uranium mineralization in the Basin.
Figure 2: Coyote Target - 3D image of SWML Plate over 3D Gravity
Conductors interpreted from previous MobileMT Survey
Next Steps:
Based on the compelling geophysical results, Stallion will integrate these findings with ongoing
geological and historical data reviews to prioritize drill targets for a planned drill program at
Coyote in winter 2026. The Moonlite Project is already permitted for drilling.
For visuals of the EM response and modeled conductor plates, see Figures 1 & 2.
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Figure 3: Moonlite Project with Target Areas
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SWML-TDEM Survey:
Abitibi Geophysics completed the SWML-TDEM survey over a single 5.8 km -long line using
nine overlapping transmitter loops (each 400 m x 600 m), recording high -resolution
electromagnetic responses at regularly spaced receiver stations along the profile. This survey
was conducted using Abitibi Geophysics’ proprietary ARMIT-TDEM system, which captures
both B -field and dB/dt responses across three components simultaneously. These two data
types are sensitive to different conductivity ranges and, when combined, enhance the detection
and resolution of subsurface conductors.
The use of stepwise overlapping loops improves resolution compared to fixed-loop systems and
is particularly well-suited for identifying discrete conductors in the complex basement geology
of the Athabasca Basin. The data were collected using 10 Hz base fr equency, with robust
stacking, QA/QC protocols, and real-time data validation to ensure high-quality results.
About the Plate Modeling:
Once field data were collected, advanced 3D modeling was conducted using EMIT Maxwell
software to convert raw EM data into interpretable geological features. The modeling process
used the Leroi algorithm to simulate conductive plates within a layered-earth model—a critical
feature for Athabasca-style settings where strong resistivity contrasts exist above and below the
unconformity.
Modeling began with verification of survey geometry and the removal of noisy or suspect
readings. Conductor plates were then inserted, oriented, and refined to match the observed EM
response across multiple components. The final plate models were evaluated for geological
plausibility, structural coherence, and data fit. The resulting models were exported and
integrated with gravity, historical, and structural datasets to prioritize drill targets with the highest
discovery potential.
Qualifying Statement:
The foregoing scientific and technical disclosures for Stallion Uranium have been reviewed by
Darren Slugoski, P.Geo., VP Exploration, a registered member of the Professional Engineers
and Geoscientists of Saskatchewan. Mr. Slugoski is a Qualified Person as defined by National
Instrument 43-101.
Kyle Patterson, P.Geo., President of Convolutions Geoscience, has reviewed the foregoing
scientific and technical disclosures for Convolutions Geoscience Corporation. Kyle is a
registered member of the Professional Engineers and Geoscientists of Saskatchew an and the
Engineers and Geoscientists of British Columbia.
About Stallion Uranium Corp.:
Stallion Uranium is working to ‘Fuel the Future with Uranium’ through the exploration of roughly
1,700 sq/km in the Athabasca Basin, home to the largest high-grade uranium deposits in the
world. The company, with JV partner Atha Energy holds the largest contiguous project in the
Western Athabasca Basin adjacent to multiple high-grade discovery zones.
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Our leadership and advisory teams are comprised of uranium and precious metals exploration
experts with the capital markets experience and the technical talent for acquiring and exploring
early-stage properties. For more information visit stallionuranium.com.
On Behalf of the Board of Stallion Uranium Corp.:
Matthew Schwab
CEO and Director
Corporate Office:
700 - 838 West Hastings Street,
Vancouver, British Columbia,
V6C 0A6
T: 604-551-2360
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