Saturday, September 19, 2026
MiningNewsTerminal
Saturday, September 19, 2026 Admin

SASK.V ·

ATHA Completes Angilak Mobilization & Commences Ground Geophysics to Target Unconformity-Style Discovery

Exploration Programs

ATHA COMPLETES ANGILAK MOBILIZATION & COMMENCES

GROUND GEOPHYSICS TO TARGET UNCONFORMITY-STYLE

DISCOVERY

HIGHLIGHTS

• Completion of mobilization – including fuel and equipment – in support of the 2025

Exploration Program at the Angilak Uranium Project;

• A detailed ground gravity and electromagnetic (EM) survey is now underway, designed to

vector in on priority targets along the highly prospective 31 km Rib-Nine Iron Trend;

• Rib-Nine Iron Trend (Figure 1):

o Extends for an interpreted 31 km under the cover of the Angikuni Basin;

o Along the western margin, historic drilling by prior operators at the RIB Discovery

intersected shallow mineralization (<25m depth) with grades up to 5.6% U 3O8 1,2,3,

hosted within graphitic pelitic rocks with Athabasca -style alteration . Two areas

proximal to the Rib Discovery will have ground gravity and EM surveys completed

prior to drill testing this summer;

o Inside of the basin, along the northern margin, historical trench sampling at the KU

Discovery have returned grades up to 30.7% U3O8 4,5,6 – KU remains untested at depth

via diamond drill, ground gravity at KU will aid in vectoring targets which will be tested

early this summer;

o On the eastern margin, historical sampling of surface outcrops near the Nine -Iron

Discovery have returned grades up to 30.3% U 3O8 5,6 and remain untested at depth

by drilling;

o Numerous similar structural targets have now been identified along this trend,

extending under the cover of the Angikuni Basin; and

• The Company anticipates announcing its diamond drill plans for Angilak in the coming weeks.

Troy Boisjoli, CEO commented: “We believe Angilak represents one of the most compelling uranium

exploration opportunities in the industry. The Company is extremely excited to kickoff its 2025 Angilak

exploration program , after a successful 2024 campaign. During the Company’s maiden Angilak

program we successfully expanded the envelop of mineralization at the Lac 50 Deposit by drilling 25

step out holes, all of which were mineralized and regionally, identified high -grade Athabasca -style

potential of the Angikuni Basin. With mobilization complete and modern geophysics underway, we are

advancing toward a high -impact drill program targeting shallow, high -grade uranium along the 31 -

kilometre Rib-Nine Iron corridor. Our goal is clear: to define the kind of discovery that could redefine

the region’s importance in the global uranium landscape.”

Cliff Revering, VP Exploration added: “In 2024 our technical team was focused on both the expansion

of the Lac 50 Deposit with step out drilling and developing a much deeper understanding of the

geological potential within the Angikuni Basin. Through extensive data compilation, new data

collection and analysis, and interpretation of the regional scale basin architecture and structural

controls on mineralization, we believe the Angilak Project has district scale potential to host multiple

high-grade uranium deposits. Now that mobilization for our 2025 program is complete, and our first

phase of the 2025 exploration program is underway, we are excited to unlock the potential within this

emerging uranium district.”

Vancouver, British Columbia, May 1st, 2025 – ATHA Energy Corp. (TSX.V: SASK) (FRA: X5U) (OTCQB:

SASKF) (“ATHA” or the “Company”), holder of the largest uranium exploration portfolio in two of the

highest-grade uranium districts globally, is pleased to announce completion of mobilization to its

100%-owned Angilak Uranium Project, Nunavut. The Company also commenced ground gravity and

EM surveys at the project that are focused on regional target areas along the 31 km Rib -Nine Iron

Trend, which extends beneath the cover of the Angikuni Basin (Figure 1). ATHA’s objective of the

ground gravity and EM surveys is to vector in on targets to be drilled as part of the Company’s 2025

Exploration Program for which drilling is anticipated to commence in early June.

The Angilak Uranium Project is situated within the Angikuni Basin, approximately 225 km southwest

of Baker Lake in the Kivalliq Region of Nunavut (Figure 1). Numerous historic regional discoveries of

uranium mineralization have been made outside of the Lac 50 Deposit area, both within the Angikuni

Basin as well as along the Basin margins. The geophysical surveys will focus on defining high priority

targets identified across the 31km Rib-Nine Iron Trend, located ~30 km southwest of the Lac 50

Deposit, situated along the western margin of the Angikuni Basin and transecting the Angikuni Basin.

Figure 1: Angilak Project Area and Mapped Mineralized Outcrops, Surface Showings of Uranium and Historic

Drilling Results by Prior Operators (see References for Historic Diamond Drilling) *Notes and References for

Historic Diamond Drilling assessment reports:

I Previous operators of the Angilak Project completed 24 diamond drill holes in the Dipole

Showing and intersected grades of up to 5.53% U3O8 over 0.5 m 2,3,5,6

II Along the western margin, historic drilling (by prior operators) at the RIB Discovery intersected

shallow (<25 m depth) mineralization with grades of up to 5.6% U3O8 1,2,3, hosted within graphitic

pelitic rocks with Athabasca unconformity style alteration

III Mushroom Lake surface outcrop spans an area of 3 km on surface with historical outcrops

samples grading up to 47.8% U3O8 4,5,6

IV Nine-Iron showing with 5 historical diamond drill holes. Intersections of shallow uranium

mineralization, grades up to 1.25% U3O8 and historical outcrops with grades up to 30.3% U3O8 5,6

Between 1977 and 1979, Noranda Exploration Company completed 30 diamond drill holes at the Rib

Discovery, intersecting Athabasca Basin unconformity-style alteration, structure , and lithologies

associated with shallow (<25 m depth) uranium mineralization with grades of up to 5.6% U3O8 hosted

within graphitic mylonites 1,2,3. After integrating historic drill results with ATHA’s 2024 MMT survey

results and the recent structural interpretation completed by SRK, the scale and potential of the Rib -

Nine Iron Trend is evident and suggestive that it has potential to host multiple additional unconformity

and basement-type uranium mineralized zones along the 31 km trend.

As was typical of 1970 – 1980’s Athabasca Basin exploration, the maximum depth of drilling at Rib is

~100 m, ending in what is now considered to be prospective alteration and lithologies. The 2024 MMT

survey demonstrated that the prospective conductive horizon extends from surface to depths of more

than 1 km, withi n and along the margins of the Angikuni Basin. The Angilak Project, both within the

Angikuni Basin and along its periphery, are compatible with a structural architecture that supports a

target-rich environment for discovery of uranium mineralization.

Disclaimer for Historical Drilling and Outcrop Samples

Certain noted technical information provided herein has been derived exclusively and without

independent verification from the following reports. Such information is historical in nature and is not

considered by the Company to be current. In each case, the reliability of the historical information is

considered reasonable by the Company . The historical information provides an indication of the

exploration potential of the properties but may not be representative of expected results. Readers

should read the entirety of such noted reports to fully understand the nature of the information

referenced herein. Samples, including, without limitation, outcrop samples, by their nature, are

selective in nature and significant variations may be seen from sample to sample. Accordingly, sample

information may not be representative of the true underlying mineralization.

References for Historic Diamond Drilling Results and Surficial Sampling

1. Papish, N.Z. 1978. 1978 Diamond Drill Report, Keewatin District N.W.T. Yathkyed Lake Area.

Noranda Exploration company Assessment Report. March 6, 1979. A copy of such report is

available on the website of the Government of Nunavut at https://nunavutgeoscience.ca/en/.

2. Dufresne, M.B., Sim, R. and Davis B., (201 3). Technical report And Resource Update for the

Angilak Project, Kivalliq Region, Nunavut. Technical Report prepared on behalf of Kivalliq

Energy Corporation, March 1st, 2013. A copy of such report is available on the SEDAR+ profile

of Kivalliq Energy Corporation at www.sedarplus.com.

3. Dufresne, M.B. and Schoeman, P. (2023). Technical report on the Angilak Project, Kivalliq

Region, Nunavut. Technical Report prepared on behalf of ATHA Energy Corp. and Labrador

Uranium Inc., January 31st, 2024. A copy of such report is available on the SEDAR+ profile of

the Company at www.sedarplus.com.

4. Ward, j., Maynes, A., McNie, E., Forbes, A. and Stacey, J. 2012. Report on 2010 and 2011

Exploration Activity on Kivalliq Corporation’s Angilak IOCG -Uranium Property, Keewatin

District, Nunavut. Kivalliq Energy Corporation Assessment Report. A copy of such report is

available on the website of the Government of Nunavut at https://nunavutgeoscience.ca/en/.

5. Dufresne, M.B., Sim, R. and Davis B., (201 3). Technical report And Resource Update for the

Angilak Project, Kivalliq Region, Nunavut. Technical Report prepared on behalf of Kivalliq

Energy Corporation, March 1st, 201 3. Copy of such report is available on the SEDAR+ profile

of Kivalliq Energy Corporation at www.sedarplus.com

6. Dufresne, M.B. and Schoeman, P. (2023). Technical report on the Angilak Project, Kivalliq

Region, Nunavut. Technical Report prepared on behalf of ATHA Energy Corp. and Labrador

Uranium Inc., January 31, 2024. A copy of such report is available on the SEDAR+ profile of the

Company at www.sedarplus.com

Qualified Person

The scientific and technical information contained in this news release have been reviewed and

approved by Cliff Revering, P.Eng., Vice President, Exploration of ATHA, who is a "qualified person" as

defined under National Inst0rument 43-101 – Standards of Disclosure for Mineral Projects.

About ATHA

ATHA is a Canadian mineral company engaged in the acquisition, exploration, and development of

uranium assets in the pursuit of a clean energy future. With a strategically balanced portfolio including

three 100%-owned post discovery uranium projects (the Angilak Project located in Nunavut, and CMB

Discoveries in Labrador , and the newly discovered basement hosted GMZ high -grade uranium

discovery located in the Athabasca Basin ). In addition, the Company holds the largest cumulative

prospective exploration land package (>7 million acres) in two of the world’s most prominent basins

for uranium discoveries - ATHA is well positioned to drive value. ATHA also holds a 10% carried interest

in key Athabasca Basin exploration projects operated by NexGen Energy Ltd. and IsoEnergy Ltd. For

more information visit www.athaenergy.com.

On Behalf of the Board of Directors

Troy Boisjoli, CEO, ATHA Energy Corp

For more information, please contact:

Troy Boisjoli

Chief Executive Officer

Email: [email protected]

www.athaenergy.com

Phone: 1-236-521-0526

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the

policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this

release.

Cautionary Statement Regarding Forward-Looking Information

This press release contains “forward-looking information” within the meaning of applicable Canadian

securities legislation. Generally, forward -looking information can be identified by the use of forward -

looking terminology such as “plans”, “expects” or “do es not expect”, “is expected”, “budget”,

“scheduled”, “estimates”, “forecasts”, “intends”, “anticipates” or “does not anticipate”, or “believes”,

or variations of such words and phrases or state that certain actions, events or results “may”, “could”,

“would”, “might” or “will be taken”, “occur” or “be achieved”. These forward -looking statements or

information may relate to ATHA’s proposed exploration program, including statements with respect to

the expected benefits of ATHA’s proposed exploration program, any results that may be derived from

ATHA’s proposed exploration program, the timing, scope, target locations, parameters, nature,

breadth and other information related to ATHA’s proposed exploration program, any results that may

be derived from the diversification of ATHA’s portfolio, the prospects of ATHA’s projects, including

mineral resources estimates and mineralization of each project, the prospects of ATHA’s business plans

and any expectations with respect to defining mineral resources or mineral reserves on any of ATHA’s

projects, and any expectation with respect to any permitting, development or other work that may be

required to bring any of the projects into development or production.

Forward-looking statements are necessarily based upon a number of assumptions that, while

considered reasonable by management at the time, are inherently subject to business, market and

economic risks, uncertainties and contingencies that may cause actual results, performance or

achievements to be materially different from those expressed or implied by forward -looking

statements. Such assumptions include, but are not limited to, assumptions that the anticipated

benefits of ATHA’s proposed exploration program will be realized, that no additional permit or licenses

will be required in connection with ATHA’s exploration programs, the ability of ATHA to complete its

exploration activities as currently expected and on the current anticipated timelines, including ATHA’s

proposed exploration program, that ATHA will be able to execute on its current plans, that ATHA’s

proposed explorations will yield results as expected, and that general business and economic

conditions will not change in a material adverse manner. A lthough ATHA has attempted to identify

important factors that could cause actual results to differ materially from those contained in forward-

looking information, there may be other factors that cause results not to be as anticipated, estimated

or intended. There can be n o assurance that such information will prove to be accurate, as actual

results and future events could differ materially from those anticipated in such statements.

Accordingly, readers should not place undue reliance on forward-looking information.

Such statements represent the current view of ATHA with respect to future events and are necessarily

based upon a number of assumptions and estimates that, while considered reasonable by ATHA, are

inherently subject to significant business, economic, compe titive, political and social risks,

contingencies and uncertainties. Risks and uncertainties include, but are not limited to the following:

inability of ATHA to realize the benefits anticipated from the exploration and drilling targets described

herein or elsewhere; in ability of ATHA to complete current exploration plans as presently anticipated

or at all; inability for ATHA to economically realize on the benefits, if any, derived from the exploration

program; failure to complete business plans as it curre ntly anticipated; overdiversification of ATHA’s

portfolio; failure to realize on benefits, if any, of a diversified portfolio; unanticipated changes in

market price for ATHA shares; changes to ATHA’s current and future business and exploration plans

and the strategic alternatives available thereto; growth prospects and outlook of the business of ATHA;

any impacts of COVID-19 on the business of ATHA and the ability to advance the Company projects and

its proposed exploration program; risks inherent in minera l exploration including risks related worker

safety, weather and other natural occurrences, accidents, availability of personnel and equipment, and

other factors; aboriginal title; failure to obtain regulatory and permitting approvals; no known mineral

resources/reserves; reliance on key management a nd other personnel; competition; changes in laws

and regulations; uninsurable risks; delays in governmental and other approvals, community relations;

stock market conditions generally; demand, supply and pricing for uranium; and general economic and

political conditions in Canada, Australia and other jurisdictions where ATHA conducts business. Other

factors which could materially affect such forward -looking information are described in the filings of

ATHA with the Canadian securities regulators which are av ailable on ATHA’s profile on SEDAR+ at

www.sedarplus.ca. ATHA does not undertake to update any forward -looking information, except in

accordance with applicable securities laws.