SES AI Corp Segments Disclosure

Note 19. Segment and Geographic Information

Operating Segments

Operating segments are defined as components of an entity for which separate financial information is available and that is regularly reviewed by the Chief Operating Decision Maker (“CODM”) in deciding how to allocate resources to an individual segment and in assessing performance. The Company’s CODM is its Chief Executive Officer. The Company has determined that it operates in one operating and reportable segment, as the CODM reviews financial information presented on a consolidated basis for purposes of making operating decisions, allocating resources, and evaluating financial performance. The CODM uses net income (loss) as the measure of financial performance and for resource allocation decisions. When evaluating the Company’s performance and making key decisions regarding resource allocation, the CODM reviews revenue and significant expenses included in the net income (loss). In addition, the CODM reviews and monitors operating expenses and cash forecasts to ensure that enough capital is available for operations.

Significant Expenses

The Company concluded it operates as one operating and reportable segment based on the information regularly reviewed by the CODM for decision making, resource allocation, and evaluating financial performance. The information included is categorized into different significant expense lines such as compensation and benefits, lab and equipment, professional services, general and administrative, facility, and sales and marketing. The Company reported the following significant expenses to the CODM:

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Geographic & Concentration Information

Revenue outside of the United States, based on customer billing address, was 99% and 100% of total revenue for the years ending December 31 2025 and 2024, respectively. For the year ending December 31, 2025, there were three customers that accounted for 48%, 15%, and 12% of revenue, respectively, compared with one customer that accounted for 93% in the year ending December 31, 2024. As of December 31, 2025, there were three customers that accounted for 31%, 12%, and 10% of accounts receivable compared to one customer that accounted for 94% of accounts receivable as of December 31, 2024.

The Company’s long-lived assets consist primarily of property and equipment and intangible assets and are attributed to the geographic location in which they are located. Long-lived assets by geographical area were as follows:

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