QS Energy, Inc.

Evaluation of Disclosure Controls and Procedures

The Company's management, with the participation of the Company's Chief Executive and Financial Officer, evaluated, as of March 31, 2025, the effectiveness of the Company's disclosure controls and procedures, as such term is defined under Securities and Exchange Act of 1934 Rules 13a-15(f), which were designed to be effective at the reasonable assurance level. Based on this evaluation, the Company’s Chief Executive and Financial Officer concluded that the Company’s disclosure controls and procedures were not effective as of September 30, 2025. As of September 30, 2025, management’s assessment identified the material weaknesses in the Company’s internal control over financial reporting:

We continue to have a material weakness in our internal control over financial reporting as disclosed in our 2024 Form 10-K, in that the Company has (i) inadequate segregation of duties consistent with control objectives; and (ii) the Company has an insufficient number of personnel with an appropriate level of U.S. GAAP knowledge and experience and ongoing training in the application of U.S. GAAP and SEC disclosure requirements commensurate with the Company’s financial reporting requirements.

(a) Changes in Internal Control over Financial Reporting

No change in the Company's internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) occurred during the nine-month period ended September 30, 2025 that has materially affected, or is reasonably likely to materially affect, the Company's internal control over financial reporting.