enCore Energy Corp.

Evaluation of Disclosure Controls and Procedures

As of September 30, 2025, our management, including our Chief Executive Officer and Chief Financial Officer, evaluated, the effectiveness of our disclosure controls and procedures as defined in Rules 13a-15(e) and 15d-15(e) of the Exchange Act. Based on that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures cannot yet be considered effective as of September 30, 2025, due to the existence of the material weaknesses in internal control over financial reporting described below.

A material weakness is a deficiency, or a combination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility that a material misstatement of annual or interim financial statements will not be prevented or detected on a timely basis. As disclosed in our Annual Report on Form 10-K for the fiscal year ended December 31, 2024, management identified the following material weaknesses in internal control over financial reporting.

•The Company had ineffective general information technology controls (“GITCs”) that support the consistent operation of the Company’s information technology (“IT”) systems, including its enterprise resource planning system. As a result, automated process-level controls and manual controls dependent upon the accuracy and completeness of information derived from those IT systems were also ineffective because they could have been adversely impacted; and

•The Company did not effectively design, implement, or operate process-level control activities related to its financial reporting processes.

Notwithstanding such material weaknesses in our internal control over financial reporting, our management performed additional analyses and other procedures to ensure that our consolidated financial statements were prepared in accordance with U.S. GAAP. Accordingly, management, including our Chief Executive Officer and Chief Financial Officer, believe that the consolidated financial statements included in this Quarterly Report present fairly, in all material respects, our financial position, results of operations and cash flows as of and for the periods presented, in accordance with those principles.

Remediation Activities

As part of improving the effectiveness of our disclosure controls and procedures, management, with oversight from the Audit Committee of the Board of Directors, continued implementing corrective measures during the nine months ended September 30, 2025. The Company continues to invest significant time and resources to enhance the design, implementation, and operation of its internal control over financial reporting.

As previously disclosed, during the three months ended September 30, 2025, we continued to enhance our internal control over financial reporting, including the following:

•Continuing to recruit key positions within our technology, accounting, business operations and other support functions with appropriate qualified experience and enterprise resource planning (“ERP”) knowledge to enhance our risk assessment processes and internal control capabilities, allow for appropriate segregation of duties and change management, and provide appropriate oversight and reviews.

•Designing and implementing a continuous risk assessment process to identify and assess risks of material misstatement and ensure that the impacted financial reporting processes and related internal controls are properly designed and in place to respond to those risks in our financial reporting.

•Developing and implementing a framework to identify risks of material misstatement to our consolidated financial statements and are currently designing controls to mitigate those risks.

•Working to establish a comprehensive GITC evaluation and monitoring program and invest in people and technology to address gaps in IT systems security controls, IT systems change management controls, and IT systems batch/program monitoring controls, including design of controls to address gaps over our GITC’s for our ERP and certain other IT systems.

•Enhancing policies and procedures to improve our overall control environment and monitoring controls around timely evaluation and communication of internal control deficiencies to those parties responsible for taking corrective action, including senior management and the board of directors, as appropriate.

Changes in Internal Control over Financial Reporting

Other than the material weakness and remediation efforts described above, there were no changes to our internal control over financial reporting identified in connection with the evaluation required by Rule 13a-15(d) and 15d-15(d) of the Exchange Act that occurred during the quarter ended September 30, 2025 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Limitations on Effectiveness of Controls and Procedures

Our management, including our principal executive officer and principal financial officer, does not expect that our disclosure controls and procedures over our internal control over financial reporting will prevent all errors and all fraud, no matter how well designed and operated, due to the inherent limitations of internal controls. Because of such limitations, there is a risk that material misstatements will not be prevented or detected on a timely basis by internal control over financial reporting. However, these inherent limitations are known features of the financial reporting process. Therefore, it is possible to design into the process safeguards to reduce, though not eliminate, this risk.

PART II - OTHER INFORMATION

For a discussion of the legal proceedings of the Company, see Note 10 – Commitments and Contingencies to the consolidated financial statements above.