SES AI Corp

Evaluation of Disclosure Controls and Procedures

Under the supervision and with the participation of our management, including our chief executive officer (“CEO”) and chief financial officer (“CFO”), we conducted an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures as of March 31, 2026, as such term is defined in Rules 13a-15(e) and 15d-15(e) under Securities Exchange Act of 1934, as amended (the “Exchange Act”). Disclosure controls and procedures include, without limitation, controls and procedures designed to provide reasonable assurance that information required to be disclosed by us in reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate, to allow for timely decisions regarding required disclosure. Based on this evaluation, our principal executive officer and principal financial officer have concluded that as of March 31, 2026, our disclosure controls and procedures were effective. We completed the acquisition of UZ Energy on September 15, 2025, and we are currently integrating UZ Energy into our internal control system. Consistent with guidance issued by the SEC, our assessment as of March 31, 2026 of the effectiveness of the Company’s disclosure controls and procedures described above and internal control over financial reporting described below excludes UZ Energy, which represented approximately 8% of total assets and 93% of total revenue of the condensed consolidated financial statement amounts of the Company as of and for the three month ended March 31, 2026.

Management, with the participation of the principal executive officer and principal financial officer, believes the unaudited interim condensed consolidated financial information included in this Quarterly Report on Form 10-Q fairly represent in all material respects our financial condition, results of operations and cash flows at and for the periods presented in accordance with U.S. GAAP.