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enCore Energy Files Dewey-Burdock S-K 1300 Technical Resource Summary

Resource Estimates

NEWS RELEASE

NASDAQ:EU

TSXV:EU

January 16, 2025

www.encoreuranium.com

enCore Energy Files Dewey-Burdock S-K 1300 Technical Resource Summary

January 16, 202 5 – Dallas, Texas – enCore Energy Corp. (NASDAQ:EU|TSXV:EU) (the “ Company” or

“enCore”), America’s Clean Energy Company ™, today reports that it has filed a new S-K 1300 Technical

Report Summary (“TRS”) for its Dewey-Burdock Project (“Project”) located in South Dakota, USA, with the

United States (U.S.) Securities & Exchange Commission (“SEC”). This filing discloses an updated mineral

resource and preliminary economic assessment for the Company’s key pipeline I n-Situ Recovery (“ISR”)

uranium project located in South Dakota. The report provides the following:

• The Dewey -Burdock Project has received its Source Material License from the U.S. Nuclear

Regulatory Commission (“NRC”), its Aquifer Exemption and its Class III and V Underground Injection

Control (“UIC”) Permits from the U.S. Environmental Protection Agency (“EPA”) Region 8.

• Measured and Indicated Resources for the Project are 17,122,147 lbs. eU3O8 or 7,388,222 tons at

0.12% average grade eU3O8.

• Inferred Resource for the Project are 712,624 lbs. eU3O8 or 656,546 tons at 0.06% eU3O8.

• A preliminary economic assessment of the Project, excluding the Inferred Resource, and using the

current cost environment, which demonstrates robust economics for the Project with an after-tax

Net Present Value (“NPV”) of $133.6 million using an 8% discount rate and a project Internal Rate

of Return (“IRR”) of 33%.

Paul Goranson, enCore’s Chief Executive Officer, stated, “This S-K 1300 Technical Report Summary for our

Dewey-Burdock Project continues to demonstrate the Project’s robust economics for supporting enCore’s

uranium production pipeline. At a time when continued and unprecedented geopolitical events

demonstrate the value of domestic ally produced uranium to support America’s increasing demand for

energy, we expect that the Dewey-Burdock Project has the potential to become a significant supplier of

fuel for clean and reliable nuclear power.”

Prior to January 1, 2025, as a Canadian domiciled company, the mineral resource for the Dewey-Burdock

Project has been disclosed solely under Na�onal Instrument 43 -101. As of January 1, 2025, as a U.S.

domes�c issuer, enCore Energy Corp. is now also repor�ng all mineral resources in accordance with Item

1302 of Regula�on S -K ("S-K 1300"). S-K 1300 was adopted by the SEC to modernize mineral property

disclosure requirements for mining registrants and to align U.S. disclosure requirements for mineral

proper�es more closely with current industry and global regulatory standards . The mineral resource

es�mates set forth in this TRS have not previously been reported under the S-K 1300 format.

This TRS was prepared under S-K 1300 and filed with the SEC through EDGAR on Form 8 -K. In addi�on, a

Canadian technical report, en�tled “Dewey-Burdock Project, South Dakota, USA, Na�onal Instrument 43-

101 Preliminary Economic Assessment Technical Report”, dated January 6, 2025 (the “Canadian Technical

Report”) was filed with Canadian securi�es regulators on SEDAR. The TRS and Canadian Technical Report

were prepared by SOLA Project Services, LLC of Casper, Wyoming, with Stuart Bryan Soliz, P.G., Principal

of SOLA Project Services, LLC being the Qualified Person for the purposes of Na�onal Instrument 43-101.

Dewey-Burdock Project

The Dewey-Burdock Project is an advanced-stage uranium explora�on project located in southwest South

Dakota and forms part of the northwestern extension of the Edgemont Uranium Mining District, about 13

miles north -northwest of Edgemont and is wholly owned by enCore. The Project is amenable for

extrac�on of uranium using In-Situ Recovery technology (“ISR”) (see below). enCore controls over 16,000

acres in the area, of which over 10,500 acres are within the Project’s permit boundary. Mineral �tle is

controlled by federal mining claims and private lease agreements.

Mineral Resource Summary

ISR Resources Measured Indicated M&I Inferred

Lbs (U3O8) 14,285,988 2,836,159 17,122,147 712,624

Tons 5,419,779 1,968,443 7,388,222 645,546

Avg. GT 0.73 0.41 0.66 0.32

Avg. Grade (% U3O8) 0.13% 0.07% 0.12% 0.06%

Avg. Thickness (�) 5.56 5.74 5.65 5.87

Notes:

1. Effec�ve date of mineral resource is October 8, 2024.

2. enCore reports mineral reserves and mineral resources separately. Reported mineral resources do not include mineral reserves.

3. The geological model used is based on geological interpreta�ons on sec�on and plan derived from surface drillhole informa�on.

4. Mineral resources have been es�mated using a minimum grade-thickness cut-off of 0.20 �% U3O8.

5. Mineral resources are es�mated based on the use of ISR for mineral extrac�on.

6. Inferred mineral resources are es�mated with a level of sampling sufficient to determine geological con�nuity but less confidence

in grade and geological interpreta�on such that inferred resources cannot be converted to mineral reserves.

7. Mineral resources that are not mineral reserves do not have demonstrated economic viability.

Results of the Preliminary Economic Assessment (“PEA”)

The scenario used for the economic assessment for the Dewey -Burdock Project assumes a specific

�meline in order to determine the appropriate economic results. It assumes that permi�ng and licensing

ac�ons are ongoing and forecasted comple�on is Q3 2026. Within the PEA, engineering is an�cipated to

commence by early 2026, and construc�on of the Dewey-Burdock ISR Uranium Central Processing Plant

(“CPP”) along with wellfield construc�on is an�cipated to commence early in 2027 . The PEA does not

include any por�on of the inferred resource. Using these assump�ons, the PEA provides the following

economic es�mates:

• Es�mated total capital costs: $264.2 M over the life of the Project;

• The es�mated opera�ng cost is expected to be $23.81/lb of U 3O8 including CPP and wellfield

opera�ons, administra�ve costs, reclama�on and decommissioning;

• 80% recovery of in situ mineral resources is expected;

• Pre-tax NPV: $180.1M with IRR 39%, net cash flow $476.8M;

• A�er-tax NPV: $133.6M with IRR 33%, net cash flow $363.4 M.

Current and future ac�vi�es to proceed on schedule:

• Finalizing state and federal permi�ng and licensing work;

• Core drilling and analysis to finalize design plans and recovery parameters.

Expected Produc�on Facility Design and Capacity Parameters:

• The CPP is to be constructed on the Dewey por�on of the project area; it will have Ion Exchange

(“IX”)recovery trains and yellowcake processing facili�es;

• A satellite facility is to be constructed on the Burdock por�on of the project area where IX resin

is to be transported to the CPP for processing into yellowcake;

• Total flow capacity of 4,000 gpm;

• Annual capacity to process 1 million pounds of uranium per year;

• Over 14 million pounds of expected uranium recovery based on current plans.

Technical information in this news release was approved by John M. Seeley, Ph.D., P.G., C.P.G., enCore’s

Manager of Geology and Exploration, and a Qualified Person of the Company and a Qualified Person as

defined in NI43 -101. Stuart Bryan Soliz, P.G., Principal of SOLA Project Services, LLC was the Qualified

Person under Na�onal Instrument 43-101 that prepared the Canadian Technical Report.

About In-Situ Recovery Technology

In-Situ Recovery (ISR) offers a minimally intrusive, eco -friendly, and economically competitive approach

to mineral extraction. It’s been proven a successful technique for obtaining uranium that replaces

conventional open pit or underground workings with wellfield technology. ISR does not involve open pits,

waste dumps, or tailings, making it more environmentally considerate. This method also streamlines the

permitting, development, and remediation processes. With ISR, uranium is extracted without disturbing

the surface, and once the process is complete, the land is restored to its original state and purpose.

About enCore Energy Corp.

enCore Energy Corp., America’s Clean Energy Company ™, is committed to providing clean, reliable, and

affordable fuel for nuclear energy as the only United States uranium company with multiple Central

Processing Plants in operation. The enCore team is led by industry experts with extensive knowledge and

experience in all aspects of ISR uranium operations and the nuclear fuel cycle. enCore solely utilizes ISR

for uranium extraction, a well- known and proven technology co -developed by the leaders at enCore

Energy.

Following upon enCore’s demonstrated success in South Texas, future projects in the production pipeline

include the Dewey-Burdock Project in South Dakota and the Gas Hills project in Wyoming. The Company

holds other assets including non-core assets and proprietary databases. enCore is committed to working

with local communities and indigenous governments to create positive impact fro m corporate

developments.

For further information:

William M. Sheriff

Executive Chairman

972-333-2214

[email protected]

www.encoreuranium.com

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

accepts responsibility for the adequacy or accuracy of this release.

Cautionary Note Regarding Forward Looking Statements:

Certain information contained in this news release, including: statements regarding future or potential production, and any other

statements regarding future expectations, beliefs, goals or prospects; may constitute “forward- looking information” and

“forward-looking statements” within the meaning of applicable Canadian and United States securities laws and regulations

(collectively, “forward -looking statements”). All statements in this news release that are not statements of historical fact

(including , but not limited to, statements regarding the potential for future production at the Project, the success of current and

future ISR operations, our future production plans and associated economics, initial economic assessment of the Project, continued

demonstration of robust economics of the Project, after -tax NPV, project IRR, that the Project will be a reliable supplier of fuel,

the expected timing of a commercial operation , engineering and construction, estimated mineral resources and financials,

expected major plant aspects, that the Project will be a successfully operable ISR operation and other statements identified by

the words “expects”, “is expected”, “does not expect”, “plans”, “anticipates”, “does not anticipate”, “believes”, “intends”,

“estimates”, “project ed”, “continues”, “potential”, “scheduled”, “forecast”, “budget” and similar expressions or variations

(including negative variations) of such words and phrases, or statements that certain actions, events or results “may”, “coul d”,

“would”, “might” or “will” be taken) should be considered forward -looking statements. All such forward- looking statements are

subject to important risk factors and uncertainties, many of which are beyond the Company’s ability to control or predict. Forward-

looking statements necessarily involve known and unknown risks, including, without limitation, risks associated with assumptions

regarding project economics; discount rates; expenditures and the current cost environment; timing and schedule of the Project,

general economic conditions; adverse industry events; future legislative and regulatory developments; the ability of enCore t o

implement its business strategies; and other risks. A number of important factors could cause actual results or events to diff er

materially from those indicated or implied by such forward- looking statements, including without limitation exploration and

development risks, changes in commodity prices, access to skilled personnel, the results of exploration and development activities;

production risks; uninsured risks; regulatory risks; defects in title; the availability of materials and equipment, timelines s of

government approvals and unanticipated environmental impacts on operations; litigation risks; risks posed by the economic and

political environments in which the Company operates and intends to operate; increased competition; assumptions regarding

market trends and the expected demand and desires for the Company’s products and proposed products; reliance on industry

equipment manufacturers, suppliers and others; the failure to adequately protect intellectual property; the failure to adequately

manage future growth; adverse market conditions, the failure to satisfy ongoing regulatory requirements and factors relating to

forward looking statements listed above which include risks as disclosed in the Company’s filings on SEDAR and with the SEC,

including its management discussion and analysis and annual information form. Should one or more of these risks materialize, or

should assumptions underlying the forward- looking statements prove incorrect, actual results may vary materially from those

described herein as intended, planned, anticipated, believed, estimated or expected. The Company assumes no obligation to

update the information in this communication, except as required by law. Additional information identifying risks and uncertainties

is contained in filings by the Company with the various securiti es commissions which are available online

at www.sec.gov and www.sedarplus.ca. Forward-looking statements are provided for the purpose of providing information about

the current expectations, beliefs and plans of management. Such statements may not be appropriate for other purposes and

readers should not place undue reliance on these forward-looking statements, that speak only as of the date hereof, as there can

be no assurance that the plans, intentions or expectations upon which they are based will occur. Such information, although

considered reasonable by management at the time o f preparation, may prove to be incorrect and actual results may differ

materially from those anticipated. Forward- looking statements contained in this news release are expressly qualified by this

cautionary statement.