enCore Energy Corp.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

SCHEDULE 14A

(Rule

14a-101)

INFORMATION REQUIRED IN PROXY STATEMENT

SCHEDULE 14A INFORMATION

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Definitive Proxy Statement

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0-11.

A Message to Our

Valued Shareholders

Dear Fellow Shareholders

On behalf of the Board of Directors, I am pleased to invite you to attend the annual general meeting of shareholders on June 10, 2026, beginning at 11:00 AM CT. The annual general meeting of shareholders will be a virtual meeting, providing a convenient, cost-effective experience for all of our shareholders and stakeholders to gain open access and participation.

Shareholders of record on April 16, 2026, or their proxy, may vote at the meeting.

As one of the leading United States uranium extraction companies, through economic and environmentally responsible In-Situ Recovery (“ISR”) technology, our success begins and ends with our unique set of advantages: ISR technology, production-ready uranium assets, operational execution, and our talented team of professionals. It is both a pleasure and a privilege to work with a talented group of professionals in a vital industry which has the potential to provide affordable, clean domestic energy.

Our commitments to our shareholders remain: ✓ Achieving high standards of performance and execution; ✓ More fulsome shareholder communications encompassing disclosure of technical information, project developments, and strategic objectives; ✓ A focus on cost management and efficiency across the organization; ✓ A dedicated commitment to securing necessary permits in a more timely manner; ✓ Making the necessary decisions to maximize uranium extraction and delivery of yellowcake (uranium) into our contracts; ✓ Aggressive development of the Company’s premier long-life assets; and ✓ A renewed commitment to accretive mergers and acquisitions.

We have a great deal of work ahead of us, and our team is passionate and deeply committed to making enCore the best choice for investors who want exposure to abest-in-class, lower-risk, domestic source of uranium. Our aim to fuel the nuclear energy future as America’s Clean Energy Company™ remains undiminished. We trust our shareholders will allow the results of our efforts to speak for themselves.

Thank you for your confidence and trust placed in our team and for your continued investment in America’s Clean Energy Company™.

William M. Sheriff

Executive Chairman

Notice of Annual General Meeting of Shareholders

To Be Held on June 10, 2026

The 2026 annual general meeting of shareholders (the “Meeting”) of enCore Energy Corp., a British Columbia corporation (the “Company”), will be held on June 10, 2026, beginning at 11:00 a.m. Central Time. The Meeting will be held exclusively through a virtual format. To attend the Meeting virtually, please visit www.proxydocs.com/EU. You will not be able to attend the Meeting in person. The purpose of the Meeting is to:

1. receive and consider the audited annual financial statements of the Company for the fiscal year ended December 31, 2025, and the auditor’s report thereon;

2. elect seven directors for a term that expires at the 2027 annual general meeting of shareholders;

3. approve, on an advisory basis, the compensation of our named executive officers;

4. ratify the appointment of KPMG LLP as the Company’s independent registered public accounting firm for the fiscal year 2026 and to authorize the directors to fix the remuneration to be paid to the auditor; and

5. transact such other business as may properly come before the Meeting or any postponement or adjournment thereof.

The Company is not aware of any items of business to be brought before the Meeting other than those noted above and further described in the accompanying proxy statement.

Accompanying this Notice of Meeting (“Notice”) is a form of proxy (“Proxy”) or Voting Instruction Form (“VIF”). The proxy statement provides more detailed information relating to the matters to be addressed at the Meeting and forms part of this Notice. We have also made available to you the Company’s 2025 annual report.

Notice and Access: As permitted by Canadian securities regulators and the Securities and Exchange Commission (“SEC”), the Company is using“notice-and-access” to deliver the proxy statement to registered andnon-registered shareholders. This means that the proxy statement is being posted online for you to access, rather than being mailed to you. This Notice includes information on how to access the proxy statement online and how to request a paper copy.

Holders of record of the Company’s common shares as of the close of business on April 16, 2026, are entitled to notice of, and to vote at, the Meeting. Accordingly, on or about April 30, 2026, we will begin mailing a Notice of Internet Availability of Proxy Materials to all shareholders of record as of April 16, 2026. We will also post our proxy materials on the website referenced on your Notice of Internet Availability of Proxy Materials at www.proxydocs.com/EU. All shareholders may choose to access our proxy materials online or may request to receive a printed or electronic set of our proxy materials at no charge as described on your Notice of Internet Availability of Proxy Materials. If you receive a Notice of Internet Availability of Proxy Materials by mail, you will not receive a printed copy of the proxy materials in the mail unless you request a copy.

If you are a registered shareholder, please complete, sign, and date the Proxy and return the same prior to the deadline and to the location set out in the Proxy to vote on the matters for consideration at the Meeting. Non-registered shareholders are requested to complete the VIF in accordance with the instructions included therein prior to the deadline to vote on the matters for consideration at the Meeting.

enCore Energy | 2026 Proxy Statement

Your vote is important to us. We recommend that you vote your shares in advance of the Meeting. We believe it is in the best interests of our shareholders, directors and employees for shareholders to communicate their votes and opinions about the Company in advance of, instead of only at, the Meeting.

This Notice is accompanied by the proxy statement which describes who can vote, how to vote, and what the Meeting will cover.

Please vote by using the Proxy or VIF, as applicable, included with this Notice and the proxy statement and return it before 11:00 a.m. (Central Time) on June 8, 2026, in accordance with the instructions provided.

The Meeting materials will be available at www.proxydocs.com/EU and on the Company’s website beginning on April 30, 2026, and will remain on the website for one year. The Meeting materials will also be available on the System for Electronic Document Analysis and Retrieval (“SEDAR+”) at www.sedarplus.ca and on the Electronic Data Gathering, Analysis, and Retrieval system (“EDGAR”) of the SEC at www.sec.gov on April 30, 2026.

By Order of the Board of Directors,

Richard H. Little

Chief Executive Officer and Director

Dallas, Texas

April 30, 2026

IMPORTANT NOTICE REGARDING THE AVAILABILITY OF PROXY MATERIALS FOR THEANNUAL GENERAL MEETING OF SHAREHOLDERS TO BE HELD ON JUNE 10, 2026. The Company’s Notice of Annual Meeting, Proxy Statement and 2025 Annual Report toShareholders are available on the internet at www.proxydocs.com/EU.

enCore Energy | 2026 Proxy Statement