Stallion Uranium Intersects Highest Radioactivity to Date at Coyote, Plans to Expand Drill Program to 6,750 Metres
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STALLION URANIUM INTERSECTS HIGHEST RADIOACTIVITY TO
DATE AT COYOTE, PLANS TO EXPAND DRILL PROGRAM TO
6,750 METRES
Vancouver, British Columbia - August 13, 2026 - Stallion Uranium Corp. (the “Company”
or “Stallion”) (TSX-V: STUD; OTCQB: STLNF; FSE: B76) is pleased to provide an update on
its ongoing exploration activities across its Athabasca Basin uranium portfolio in northern
Saskatchewan.
Stallion has now completed 4,626 metres of drilling at the Coyote target , including two
additional drill holes, ML26-005 and ML26-006A, with the latest drilling intersecting increased
radioactivity as the Company continues to advance its understanding of the Coyote
system.
Encouraged by the progression of the 2026 drill program and the geological information
generated to date, Stallion plans to expand its current 5,500- metre program to
approximately 6,750 metres before the end of the exploration season, representing an
additional 1,250 metres of planned drilling at Coyote.
In parallel, Stallion has mobilized a ground gravity survey over its highest-priority target at
the Stone Island Project.
Together, the continued advancement of Coyote and progression of Stone Island demonstrate
Stallion's systematic exploration strategy of integrating geology, geophysics and advanced data
analysis to progressively identify, validate and drill -test the highes t-priority uranium targets
across its Athabasca Basin portfolio.
Coyote Drilling Update:
Drilling at Coyote has now reached 4,626 metres, representing approximately 84% of the
Company's previously announced 5,500-metre program.
The latest drilling includes holes ML26 -005 and ML26 -006A, which intersected increased
radioactivity, highlighted by a peak response of 1,416 cps in ML26 -005 within a 2.3 -metre
interval averaging 595 cps. The drilling continues to provide important geological information
as Stallion refines its understanding of the structural and alteration systems associated with the
Coyote target.
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Figure 1: Cross Section of ML26-005
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The Company plans to complete the remaining metres of the current program and, based on
the geological information generated to date, intends to expand drilling to a total of
approximately 6,750 metres before the end of the 2026 exploration season.
The additional drilling will allow Stallion to continue testing and refining priority areas within the
Coyote system while incorporating the growing geological and geophysical dataset developed
throughout the 2026 program.
Stone Island Gravity Survey Mobilized:
Stallion has mobilized crews to conduct a ground gravity survey over a high-priority target
at the Company's Stone Island Project.
The gravity survey is designed to identify subtle density variations that may be associated with
alteration systems and structural features prospective for Athabasca Basin uranium
mineralization.
The gravity program represents another step in Stallion's systematic exploration methodology:
progressively layering geological interpretation, historical information, airborne and ground
geophysics, and advanced data analysis to reduce large exploration areas into increasingly
focused, drill-ready targets.
Building a Pipeline Beyond Coyote:
While Coyote remains the Company's primary drill focus, Stallion believes that advancing
additional high-quality targets across its portfolio is an important component of creating long-
term exploration value.
The progression of Stone Island demonstrates how Stallion is applying its systematic
exploration approach across its Athabasca Basin portfolio. The Company's strategy has been
to systematically advance targets from regional -scale datasets through progressively higher -
resolution exploration before committing significant capital to drilling.
This methodology has guided the advancement of Coyote from an exploration concept into an
active multi-phase drilling program and is now being applied to the next generation of targets
within Stallion's portfolio.
Matthew Schwab, CEO of Stallion, said, “The increasing radioactivity encountered at
Coyote, including our highest peak response to date in ML26 -005, represents another
encouraging step forward as we continue to understand this system. Importantly, we are
evaluating these results alongside the alteration, structural geology and geophysical data
generated throughout the program. The continued progression at Coyote gives us the
confidence to expand the program to approximately 6,750 metres and continue testing the
system before the end of the season.”
“Coyote is demonstrating the value of that methodology, and Stone Island represents an
opportunity to apply the same disciplined approach to another high- priority target within
our portfolio. We believe maintaining this pipeline of advancing targets gives S tallion
multiple opportunities for discovery across our Athabasca Basin land position.”
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Next Steps:
Stallion's near-term exploration activities include:
Completion of the remaining metres of the current Coyote drilling program and the
planned expansion toward approximately 6,750 metres of total drilling;
Continued geological interpretation and integration of results from ML26 -005, ML26-
006A and the broader 2026 Coyote drill program;
Completion and interpretation of the Stone Island ground gravity survey;
Integration of the gravity results with the previously completed Haystack AI targeting
work and existing geophysical datasets; and
Continued advancement and ranking of priority targets across Stallion's broader
Athabasca Basin portfolio.
The Company will provide additional updates as exploration activities progress and results
become available.
Gamma Logging and Geochemical Assaying:
All core radioactivity was measured using a RS-125 Super -SPEC Handheld Gamma -Ray
Spectrometer. Down hole probing radiometric surveying was conducted with a Mount Sopris
QL40GR-1000 downhole total gamma probe. The total gamma results provided in Table 1 were
selected using a cut-off of 300 cps over a 0.3 metre downhole width.
All drill core samples from the 2026 program will be shipped to the Saskatchewan Research
Council Geoanalytical Laboratories ("SRC") in Saskatoon, Saskatchewan, an ISO/IEC
17025/2005 and Standards Council of Canada certified analytical laboratory. Stallion Uranium
requests multi-element analysis by ICP -MS and ICP -OES using total (HF:NHO3:HClO4 ) and
partial digestion (HNO3:HCl), boron by fusion. One half of the split core samples are retained
and the other half cores are sent to the SRC for analyses. Blanks, standard reference materials,
and repeats are inserted into the sample stream at regular intervals by Stallion Uranium
geologists and SRC in accordance with industry -standard quality assurance/quality control
("QA/QC") procedures.
All reported depths and intervals are drill hole depths and intervals, unless otherwise noted, and
do not represent true thicknesses, which have yet to be determined. The reader is cautioned
that gamma probe readings are not directly or uniformly related t o uranium grades of the rock
sample measured and should be used only as a preliminary indication of the presence of
radioactive materials.
Qualifying Statement:
The foregoing scientific and technical disclosures for Stallion Uranium have been reviewed and
approved 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.
About Stallion Uranium Corp.:
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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. With a commitment
to responsible exploration and cutting -edge technology such as the use of the proprietary
Haystack TI technology, Stallion is positioned to play a key role in the future of clean energy.
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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