Latest Version of Molecular Universe, an On-Premise Solution for Enterprise Customers, Drone Cell Expansion Plans in Korea, and an Integration of Software and Hardware at UZ Energy Highlight the New Business Updates

SES AI Corporation ("SES AI") (NYSE:SES), a global leader in the development and manufacturing of AI-enhanced high-performance Li-Metal and Li-ion batteries, today announced that it will present at its 5^th annual Battery World on December 29, 2025.

During Battery World 2025, SES AI will be discussing several business updates, including:

Unveiling the latest version of Molecular Universe (MU-1.5) and details on its new features, trained on the Company's proprietary molecular databases and domain knowledge
Announcing the availability of an on-premise Molecular Universe solution to meet customer demand for privacy and security
Plans to increase capacity at the Company's Chungju Korea plant by nearly three-fold to approximately 1 million AI-enabled Li-Metal and Li-ion pouch cells per year to meet demand from U.S. and European-based drone customers
An update on integration of UZ Energy's hardware with SES AI's software to enable deeper usage, reduced maintenance, and increased profitability for ESS end users

"At Battery World 2025, we expect to discuss the exciting events over the last twelve months that have led to the continued development of the Molecular Universe, the acquisition of UZ Energy to enter the ESS market, the joint venture with Hisun utilizing their existing manufacturing capacity for electrolyte materials, and the expansion of Li-Metal and Li-ion cell manufacturing in Korea to meet growing demand from existing and potential drone customers."

Battery World 2025 will take place: 11:00 AM EST/ 8:00 AM PST, December 29, 2025

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About SES AI:

SES AI Corp. (NYSE:SES) is powering the future of global electric transportation on land and in the air with the world's most advanced Li-Metal batteries. SES AI is the first battery company in the world to accelerate its pace of innovation by utilizing superintelligent AI across the spectrum of its business, from research and development; materials sourcing; cell design; engineering and manufacturing; to battery health and safety monitoring. Founded in 2012, SES AI is an Li-Metal battery developer and manufacturer headquartered in Boston and with operations in Singapore, Shanghai, and Seoul. Learn more at SES.AI.

SES AI may use its website as a distribution channel of material company information. Financial and other important information regarding SES AI is routinely posted on and accessible through the Company's website at www.ses.ai. Accordingly, investors should monitor this channel, in addition to following SES AI's press releases, Securities and Exchange Commission filings and public conference calls and webcasts.

Forward-Looking Statements

This letter contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, about us and our industry that involve substantial risks and uncertainties. Forward-looking statements generally relate to future events or our future financial or operating performance. In some cases, you can identify forward-looking statements because they contain words such as "will," "goal," "prioritize," "plan," "target," "expect," "focus," "look forward," "opportunity," "believe," "estimate," "continue," "anticipate," "project" and "pursue" or the negative of these terms or similar expressions. These statements are based on the beliefs and assumptions of the management of the Company. You should not place undue reliance on these forward-looking statements. Although the Company believes that its plans, intentions and expectations reflected in or suggested by these forward-looking statements are reasonable, it cannot provide assurance that it will achieve or realize these plans, intentions or expectations. Should one or more of a number of known and unknown risks and uncertainties materialize, or should any of our assumptions prove incorrect, our actual results or performance may be materially different from those expressed or implied by these forward-looking statements. Some factors that could cause actual results to differ include, but are not limited to, among other things, risks related to the integration of Shenzhen UZ Energy Co. Ltd. and its related entities ("UZ Energy") operations into the business of the Company and the integration of SES's software into UZ Energy's hardware, risks related to the development and commercialization of SES AI's battery technology and the timing and achievement of expected business milestones, risks relating to the uncertainty of achieving and maintaining profitability, the ability of SES to integrate its products into electric vehicles and Urban Air Mobility, drones, energy storage systems, robotics and other applications, the risk that the market for SES AI's AI-based services, including Molecular Universe, is still emerging, and such programs may not achieve the growth potential SES AI expects, risks related to the market demand for SES's on-premise version of Molecular Universe, risks related to our ability to achieve increased cell production capacity at SES's Chungju plant, risks related to SES's joint ventures and other strategic partnerships, risks related to the elimination of, or uncertainty regarding government and economic incentives or subsidies available to us, end-users or OEMs, risks related to changes in U.S. and foreign government policy, including imposition or increase in tariffs and changes to existing trade agreements, risks related to our dependence on third parties for component and product manufacturing, risks related to the demand for our energy storage system products and other factors described in our filings with the Securities and Exchange Commission (the "SEC"), including in the "Risk Factors" and "Management's Discussion and Analysis of Financial Condition and Results of Operations" sections of our most recently filed Annual Report on Form 10-K, Quarterly Report on Form 10-Q and other documents that we have filed, or that we will file, with the SEC. Any forward-looking statements made by us in this letter speak only as of the date on which they are made and subsequent events may cause these expectations to change. We disclaim any obligations to update or alter these forward-looking statements in the future, whether as a result of new information, future events or otherwise, except as required by law.

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SES AI to Unveil New Business Updates at Battery World 2025