Standard Nuclear, Inc.

Evaluation of Disclosure Controls and Procedures

The Company maintains disclosure controls and procedures that are designed to ensure that information required to be disclosed by Standard Nuclear in reports it files or submits under the Exchange Act is recorded, processed, summarized and reported in the time periods specified in the SEC’s rules and forms and that such information is accumulated and communicated to management, including the Chief Executive Officer (our principal executive officer) and the Chief Financial Officer (our principal financial officer), as appropriate to allow for timely decisions regarding required disclosures.

Remediation of Previously Reported Material Weaknesses

As previously disclosed in the Company's Registration Statement on Form S-1, management identified material weaknesses in internal control over financial reporting relating to (i) we did not design and maintain effective controls over user access and segregation of duties across our financial systems and related processes, and (ii) we did not have a sufficient complement of personnel with the appropriate level of technical accounting expertise in U.S. GAAP and SEC reporting requirements, which created a risk that complex accounting matters and financial statements and related disclosures would not be identified, evaluated, resolved, or prepared accurately and timely in accordance with these standards.

Remediation Plan and Status

Management believes that, as of June 30, 2026, it has implemented measures to remediate the material weaknesses described above. The actions taken remain subject to ongoing management review and Audit Committee oversight. Specifically, we have taken the actions described below:

•The Company has expanded its accounting and financial reporting organization, adding licensed certified public accountants in the Chief Financial Officer, Chief Accounting Officer, Controller and Director of Accounting roles, together with additional finance leadership, each with prior public-company financial reporting experience and technical accounting skills related to non-routine transactions. The Company also added in-house legal counsel to support the review of contracts and non-routine transactions.

•The Company has also enhanced controls to improve role-based access and segregation of duties within our financial systems, including reviewing user access rights across its financial systems, and removing access rights that resulted in incompatible duties, as well as implemented secondary review and approval requirements over critical transactions.

A material weakness cannot be considered remediated until the applicable controls have operated for a sufficient period of time and management has concluded, through testing, that the controls are operating effectively. Accordingly, management has not concluded that the material weaknesses described above were remediated as of June 30, 2026, and may determine that additional measures are required.

Changes in Internal Control over Financial Reporting

Except as described above, there were no changes in our internal control over financial reporting during the quarter ended June 30, 2026 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Inherent Limitations on Effectiveness of Controls

Our management, including our Chief Executive Officer and Chief Financial Officer, believes that our disclosure controls and procedures and internal control over financial reporting are designed to provide reasonable assurance of achieving their objectives and are effective at the reasonable assurance level. However, the effectiveness of any system of internal control over financial reporting, including ours, is subject to inherent limitations, including the exercise of judgment in designing, implementing, operating, and evaluating the controls and procedures, and the inability to eliminate misconduct completely. Accordingly, any system of internal control over financial reporting, including ours, no matter how well designed and operated, can only provide reasonable, not absolute, assurance that its desired control objectives will be met. In addition, the design of disclosure controls and procedures must reflect the fact that there are resource constraints and that management is required to apply its judgment in evaluating the benefits of possible controls and procedures relative to their costs. Moreover, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. We intend to continue to monitor and upgrade our internal controls as necessary or appropriate for our business, but cannot assure you that such improvements will be sufficient to provide us with effective internal control over financial reporting.