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Premier American Uranium Files Technical Report for Cebolleta Uranium Project

Resource Estimates Technical Reports (NI 43-101)

Premier American Uranium Files Technical Report for Cebolleta Uranium Project

Toronto, ON, December 9, 2025 – Premier American Uranium Inc. (“PUR” or “Premier American

Uranium” or the “Company”) (TSXV: PUR, OTCQB: PAUIF) is pleased to announce the filing of a

technical report (the “Technical Report”) containing its Preliminary Economic Assessment (“PEA”)

and updated Mineral Resource Estimate (“MRE”) for the Cebolleta Uranium Project (“Cebolleta”

or the “Project”) in New Mexico. The PEA outlines the potential for a low-CAPEX, long-life uranium

operation with strong baseline economics and several clear avenues for possible enhancement.

The Technical Report, which includes both the PEA and the updated M RE, was prepared in

accordance with National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI

43-101”) by SLR International Corporation (“SLR”), an independent consulting firm with extensive

experience in mining and mineral processing, including uranium in the United States. The

Technical Report is available on SEDAR+ at www.sedarplus.ca under the Company’s issuer profile.

Highlights

• Base case production and mine life:

o Average annual production of approximately 1.4 million pounds U₃O₈, with peak

years approaching 2.0 Mlb.

o Total production of 18.1 Mlb U₃O₈ over a 13-year mine life.

• Project economics (after-tax):

o After-tax Net present value (NPV 8%) of US$83.9 million (pre-tax NPV 8%: US$106

million).

o Internal rate of return (IRR) of 17.7%.

o Life-of-mine (“LOM”) free cash flow of US$287 million.

o LOM operating cash flow of US$496 million.

• Capital and operating costs:

o Direct CAPEX: US$64.2 million.

o Indirect costs (EPCM/owner’s/indirect): US$19.3 million.

o Contingency (35%): US$29.2 million.

o Average operating cost: US$41.60 per lb U₃O₈ recovered.

o Heap leach processing costs: US$16.72 per short ton.

• Uranium price assumptions and sensitivity:

o Base case uranium price: US$90/lb U₃O₈

o Sensitivity to higher uranium prices:

 US$154 million NPV at US$100/lb

 US$325 million NPV at US$125/lb

 US$488 million NPV at US$150/lb

• Upside potential:

o Improved metallurgical recoveries could significantly enhance project economics:

 Base case after-tax NPV of US$84 million could increase by ~90% to US$159

million using a 90% metallurgical recovery.

• Updated MRE:

o Indicated resource: 20.3 Mlb e U₃O₈ (8.3 Mst grading 0.12% eU₃O₈, up 1.7 Mlb

eU₃O₈ or 9% compared to the 2024 technical Report.

o Inferred resource: 7.0 Mlb eU₃O₈ (3.6 Mst grading 0.10% eU₃O₈ or 43% compared

to the 2024 technical report.

The PEA is preliminary in nature and includes inferred mineral resources that are considered too

speculative geologically to have the economic considerations applied to them that would enable

them to be categorized as mineral reserves. There is no certainty that the PEA will be realized.

About the Cebolleta Uranium Project and Mineral Resources

Located in New Mexico, the Cebolleta Uranium Project is a past -producing property with

extensive historical work and infrastructure. Its location in one of the premier uranium districts

in the U S provides strategic advantages, including proximity to utilities and existing processing

facilities.

Qualified Person

The scientific and technical information contained in this news release relating to the PEA and

MRE was reviewed and approved by Mr. Mark B. Mathisen, C.P .G., Stuart Collins, P .E., Jeffrey L.

Woods, MMSA QP, Lee (Pat) Gochnour, MMSA QP and Matthew Behling, P. E ., for SLR International

Corporation, the authors of the Current Technical Report, each of whom is a “Qualified Person”

(as defined in NI 43-101).

Mr. Mathisen (QP) has verified the exploration, sampling, analytical, and test data supporting the

Technical Report through review and audit of historical and recent databases, comparison with

original geophysical logs and assay records, and inspection of drill hole collar, interval, and grade

data for completeness and accuracy. Verification included a site visit on September 12, 2023,

review of drilling and downhole logging procedures, and evaluation of the 2023 twin -hole and

2025 Willie P database audits, which confirmed strong correlation with historical results and

overall data reliability. Although no historical core or quality assurance/quality control reference

materials are available and most legacy holes lack deviation surveys, no limitations were placed

upon the QP during the verification process , and the QP considers the verification methods and

resulting database adequate for Mineral Resource estimation and compliant with NI 43 -101

requirements.

Additional scientific and technical information in this news release not specific to the PEA and

MRE has been reviewed and approved by Dean T. Wilton, PG, CPG, MAIG, a consultant of Premier

American Uranium Inc., who is a “Qualified Person” (as defined in NI 43-101).

About Premier American Uranium Inc.

Premier American Uranium is focused on consolidating, exploring, and developing uranium

projects across the United States to strengthen domestic energy security and advance the

transition to clean energy. The Company’s extensive land position spans five of the nation’s top

uranium districts, with active work programs underway in New Mexico’s Grants Mineral Belt and

Wyoming’s Great Divide and Powder River Basins.

Backed by strategic partners including Sachem Cove Partners, IsoEnergy Ltd., Mega Uranium Ltd.,

and other leading institutional investors, PUR is advancing a portfolio supported by defined

resources and high- priority exploration and development targets. Le d by a distinguished team

with deep expertise in uranium exploration, development, permitting, operations, and uranium-

focused M&A, the Company is well positioned as a key player in adv ancing the U.S. uranium

sector.

For More Information, Please Contact:

Premier American Uranium Inc.

Colin Healey, CEO and Director

[email protected]

Toll-Free: 1-833-223-4673

X: @PremierAUranium

www.premierur.com

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

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

news release.

Non-GAAP Financial Measures

This news release includes certain terms or performance measures commonly used in the mining

industry that are not defined under International Financial Reporting Standards (" IFRS"). Such

non-GAAP performance measures, including operating costs and free cash flow, are included

because it understands that investors use this information to determine the Company's ability to

generate earnings and cash flows. The Company believes that conventional measures of

performance prepared in accordance with IFRS do not fully illustrate the ability of mines to

generate cash flows. Non-GAAP financial measures should not be considered in isolation as a

substitute for measures of performance prepared in accordance with IFRS and are not necessarily

indicative of cash flows presented under IFRS. These measures have no standardized meaning

under IFRS and may not be comparable to similar measures presented by other companies.

Cautionary Statement Regarding Forward -Looking Information

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

Canadian securities laws. Forward-looking information includes, but is not limited to, statements

with respect to, the economic and scoping-level parameters of the PEA and the Project; mineral

resource estimates; the cost and timing of any development of the Project; the proposed mine

plan and mining methods; dilution and mining recoveries; processing method and rates;

production rates; projected metallurgical recovery rates; infrastructure requirements; energy

sources; capital and operating cost estimates; the projected LOM and other expected attributes

of the Project; the NPV, IRR and payback period of capital; the uranium industry and uranium

prices; government regulations and permitting; access to the Project ; water sources and

management; estimates of reclamation obligations and closure costs; requirements for additional

capital; expectations with respect to project development and permitting, construction and

operational processes; availability of services to be provided by third parties; future development

methods and plans; and other activities, events or developments that are expected, anticipated

or may occur in the future. Generally, but not always, forward- looking information and

statements can be identified by the use of words such as “plans”, “expects”, “ is expected”,

“budget”, “scheduled”, “estimates”, “forecasts”, “intends”, “anticipates”, or “believes” or the

negative connotation thereof or variations of such words and phrases or statements that certain

actions, events or results “may”, “could”, “would” , “ m i g h t ” o r “ w i l l b e t a k e n ” , “ o c c u r” o r “ b e

achieved” or the negative connotation thereof.

Forward-looking information and statements are based on our current expectations, beliefs,

assumptions, estimates and forecasts about PUR’s business and the industry and markets in which

it operates. Such forward- information and statements are based on num erous assumptions,

including among others, general business and economic conditions will not change in a material

adverse manner, that financing will be available if and when needed and on reasonable terms,

that third party contractors, equipment and suppl ies and governmental and other approvals

required to conduct the Company’s planned exploration activities will be available on reasonable

terms and in a timely manner. Although the assumptions made by PUR in providing forward-

looking information or making forward- looking statements are considered reasonable by

management at the time, there can be no assurance that such assumptions will prove to be

accurate.

Forward-looking information and statements also involve known and unknown risks and

uncertainties and other factors, which may cause actual results, performances and achievements

of Premier American Uranium to differ materially from any projections of resu lts, performances

and achievements of Premier American Uranium expressed or implied by such forward- looking

information or statements, including, among others: risks related to the inherent uncertainties

regarding cost estimates; changes in commodity and m etal prices; results of future exploration

activities; cost overruns; the limited operating history of the Company ; negative operating cash

flow and dependence on third party financing; uncertainty of additional financing; delays or

failure to obtain required permits and regulatory approvals ; changes in mineral resources ; no

known mineral reserves; aboriginal title and consultation issues; reliance on key management and

other personnel; potential downturns in economic conditions; availability of third party

contractors; availability of equipment and supplies; failure of equipment to operate as

anticipated; accidents, effects of weather and other natural phenomena and other risks

associated with the mineral exploration industry; changes in laws and regulation, competition,

and uninsurable risks and the risk factors with respect to Premier American Uranium set out in

PUR’s annual information form for the year ended December 31, 2024 and the other documents

of PUR filed with the Canadian securities regulators and available under PUR’s profile on SEDAR+

at www.sedarplus.ca.

Although PUR has attempted to identify important factors that could cause actual actions, events

or results to differ materially from those contained in the forward-looking information or implied

by forward- looking information, there may be other factors t hat cause results not to be as

anticipated, estimated or intended. There can be no assurance that forward-looking information

and statements will prove to be accurate, as actual results and future events could differ

materially from those anticipated, esti mated or intended. Accordingly, readers should not place

undue reliance on forward- looking statements or information. PUR undertakes no obligation to

update or reissue forward-looking information as a result of new information or events except as

required by applicable securities law.