# EDGAR Filing Document

**Accession Number:** 0001819142
**File Stem:** 0001819142-26-000026
**Filing Date:** 2026-4
**Character Count:** 117208
**Document Hash:** 2772fc22fb5e728169f3673cb31c2173
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001819142-26-000026.hdr.sgml**: 20260424

**ACCESSION NUMBER**: 0001819142-26-000026

**CONFORMED SUBMISSION TYPE**: 10-Q

**PUBLIC DOCUMENT COUNT**: 78

**CONFORMED PERIOD OF REPORT**: 20260331

**FILED AS OF DATE**: 20260424

**DATE AS OF CHANGE**: 20260424

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SES AI Corp
- **CENTRAL INDEX KEY:** 0001819142
- **STANDARD INDUSTRIAL CLASSIFICATION:** MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES [3690]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 000000000
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 10-Q
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39845
- **FILM NUMBER:** 26894464

**BUSINESS ADDRESS:**
- **STREET 1:** 35 CABOT RD.
- **CITY:** WOBURN
- **STATE:** MA
- **ZIP:** 01801
- **BUSINESS PHONE:** 339-298-8750

**MAIL ADDRESS:**
- **STREET 1:** 35 CABOT RD.
- **CITY:** WOBURN
- **STATE:** MA
- **ZIP:** 01801

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Ivanhoe Capital Acquisition Corp.
- **DATE OF NAME CHANGE:** 20200723

?xml version='1.0' encoding='ASCII'? SES AI Corporation_March 31, 2026

[**Table of Contents**](#TOC)

**UNITED STATES SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 10-Q**

**(Mark One)**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**☒** **QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934** 

**For the quarterly period ended March 31, 2026**

**or**

**☐** **TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934**

**For the transition period from &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; to**

**Commission File Number: 001-39845**

**SES AI Corporation**

**(Exact name of registrant as specified in its charter)**

---

| | |
|:---|:---|
| &nbsp;&nbsp;**Delaware** | &nbsp;&nbsp;**88-0641865** |
| &nbsp;&nbsp;**(State or other jurisdiction of**<br>**incorporation or organization)** | &nbsp;&nbsp;**(I.R.S. Employer**<br>**Identification No.)** |
| &nbsp;&nbsp;**35 Cabot Road Woburn, MA** | &nbsp;&nbsp;**01801** |
| &nbsp;&nbsp;**(Address of principal executive offices)** | &nbsp;&nbsp;**(Zip Code)** |

---

**Registrant's telephone number, including area code: (339) 298-8750**

Securities registered pursuant to Section 12(b) of the Act:

---

| | | |
|:---|:---|:---|
| **Title of Each Class** | **Trading symbol(s)** | **Name of Exchange on which registered** |
| **Class A common stock, par value $0.0001 per share** | **SES** | **The New York Stock Exchange** |
| **Warrants, each exercisable for one share of Class A common stock at an exercise price of $11.50 per share** | **SES WS** | **The New York Stock Exchange** |

---

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒&nbsp;&nbsp;&nbsp;&nbsp;No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒&nbsp;&nbsp;&nbsp;&nbsp;No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

---

| | | | |
|:---|:---|:---|:---|
| Large accelerated filer | ☐ | Accelerated filer | ☐ |
| Non-accelerated filer | ☒ | Smaller reporting company | ☒ |
|  |  | Emerging growth company | ☐ |

---

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐&nbsp;&nbsp;&nbsp;&nbsp;No ☒

As of April 22, 2026, there were 325,402,113 shares of the registrant's Class A common stock and 43,881,251 shares of the registrant's Class B common stock outstanding.

[**Table of Contents**](#TOC)

**TABLE OF CONTENTS**

---

| | | |
|:---|:---|:---|
| [Cautionary Note Regarding Forward-Looking Statements](#Cautionary_Notes_Forward_Looking_Stateme) | [Cautionary Note Regarding Forward-Looking Statements](#Cautionary_Notes_Forward_Looking_Stateme) |  |
| [**Part I**](#Balance_Sheet)**.** | [**Financial Information**](#Balance_Sheet) |  |
| [Item 1](#Balance_Sheet). | &nbsp;&nbsp;[Financial Statements](#Balance_Sheet) | 5 |
|  | &nbsp;&nbsp;[Condensed Consolidated Balance Sheets (Unaudited)](#Balance_Sheet) | 5 |
|  | &nbsp;&nbsp;[Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited)](#Stmt_of_Operations) | 6 |
|  | &nbsp;&nbsp;[Condensed Consolidated Statements of Stockholders' Equity (Unaudited)](#Stmt_of_Changes_in_Equity) | 7 |
|  | &nbsp;&nbsp;[Condensed Consolidated Statements of Cash Flows (Unaudited)](#Stmt_of_Cash_Flow) | 8 |
|  | &nbsp;&nbsp;[Notes to Condensed Consolidated Financial Statements (Unaudited)](#Footnotes) | 9 |
| [Item 2.](#Item_2_MDA) | &nbsp;&nbsp;[Management's Discussion and Analysis of Financial Condition and Results of Operations](#Item_2_MDA) | 19 |
| [Item 3.](#Item_3_Quantitative_Dsiclsoures) | &nbsp;&nbsp;[Quantitative and Qualitative Disclosures About Market Risk](#Item_3_Quantitative_Dsiclsoures) | 24 |
| [Item 4.](#Item_4_Controls_and_Procedures) | &nbsp;&nbsp;[Controls and Procedures](#Item_4_Controls_and_Procedures) | 24 |
| [**Part II**](#Part_II_Other_Information)**.** | [**Other Information**](#Part_II_Other_Information) |  |
| [Item 1.](#Iterm_1_Legal_Proceedings) | &nbsp;&nbsp;[Legal Proceedings](#Iterm_1_Legal_Proceedings) | 24 |
| [Item 1A.](#Item_1A_Risk_Factors) | &nbsp;&nbsp;[Risk Factors](#Item_1A_Risk_Factors) | 25 |
| [Item 2.](#Item_2_Unregistered_Sales) | &nbsp;&nbsp;[Unregistered Sales of Equity Securities and Use of Proceeds](#Item_2_Unregistered_Sales) | 25 |
| [Item 3.](#Item_3_Defaults) | &nbsp;&nbsp;[Defaults Upon Senior Securities](#Item_3_Defaults) | 25 |
| [Item 4.](#Item_4_Mine_Safety) | &nbsp;&nbsp;[Mine Safety Disclosures](#Item_4_Mine_Safety) | 25 |
| [Item 5.](#Item_5_Other) | &nbsp;&nbsp;[Other Information](#Item_5_Other) | 25 |
| [Item 6.](#Item_6_Exhibits) | &nbsp;&nbsp;[Exhibits](#Item_6_Exhibits) | 26 |
| [Signatures](#Signatures) | [Signatures](#Signatures) | 27 |

---

[**Table of Contents**](#TOC)

**CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS**

**This Quarterly Report on Form 10-Q contains statements that SES AI Corporation (together the "Company" or "SES") believes are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include, without limitation, statements relating to expectations for future financial performance, business strategies or expectations for our business. These statements are based on the beliefs and assumptions of the management of the Company. 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. These statements constitute projections, forecasts and forward-looking statements, and are not guarantees of performance. Such statements can be identified by the fact that they do not relate strictly to historical or current facts. When used in this Quarterly Report on Form 10-Q, words such as "anticipate," "believe," "can," "continue," "could," "estimate," "expect," "forecast," "intend," "may," "might," "plan," "possible," "potential," "predict," "project," "seek," "should," "strive," "target," "will," "would" and similar expressions may identify forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking**.**

You should not place undue reliance on these forward-looking statements. Should one or more of a number of known and unknown risks and uncertainties materialize, or should any of our assumptions prove incorrect, the Company's 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 the risks below, which also serves as a summary of the principal risks of an investment in our securities:

● We expect to continue to incur losses for the foreseeable future. While we expect to become profitable eventually, our projections are based on internal assumptions that may prove incorrect, and we may never achieve or maintain profitability.

● We will need substantial additional capital in the future to fund our business and may be unable to meet our future capital requirements, impairing our financial position and results of operations.

● We may not be able to successfully integrate UZ Energy's operations with our business.

● The market for Urban Air Mobility ("UAM"), and for use of Li-Metal technology in UAM applications, is still emerging and may not achieve the growth potential we expect.

● We may face challenges in developing National Defense Authorization Act (" NDAA")-compliant manufacturing capacity for drone cells, and even if we develop the manufacturing capacity, demand for NDAA-compliant drone cells may not develop.

● If our batteries fail to perform as expected our ability to develop, market and sell our batteries could be harmed.

● We may not be able to engage target original equipment manufacturers ("OEMs") customers successfully and to convert such contacts into meaningful orders in the future.

● We may not be able to establish new, or maintain existing, supply relationships for necessary raw materials, components or equipment or may be required to pay costs for raw materials, components or equipment that are more expensive than anticipated, which could delay the introduction of our product and negatively impact our business.

● Our ability to manufacture our batteries at scale depends on our ability to build, operate and staff our facilities successfully, as well as to obtain sufficient contract manufacturing specificity.

● We have pursued and may continue to pursue joint development agreements ("JDAs"), service contracts and other strategic alliances, which could have an adverse impact on our business if they are unsuccessful or if we are unable to enter into new strategic alliances.

● The battery market continues to evolve and is highly competitive, and certain other battery manufacturers have significantly greater resources than we do.

● We may not be able to estimate accurately the future supply and demand for our batteries, which could result in a variety of inefficiencies in our business and hinder our ability to generate revenue. If we fail to predict accurately our manufacturing requirements, we could incur additional costs or experience delays.

● Certain components of our batteries pose safety risks that may cause accidents. We may be subject to financial and reputational risks due to product recalls and product liability claims, and we could face substantial liabilities that exceed our resources.

● We may not be able to develop and commercialize newly discovered materials.

● The use of artificial intelligence ("AI") in our products and services may result in reputational harm and competitive harm.

● Our use of AI and machine learning may result in legal and regulatory risks.

● The market for our AI-based services such as Molecular Universe is still emerging and our AI programs may not achieve the growth potential we expect.

● The economic benefit of our Energy Storage Systems ("ESS") products to our customers depends on the cost of electricity available from alternative sources, including local electric utility companies, which cost structure is subject to change.

● Our ESS products performance may not meet customers' expectations or needs.

● We depend upon component and product manufacturing and logistical services provided by third parties, many of whom are located outside of the U.S.

[**Table of Contents**](#TOC)

● Our patent applications may not result in issued patents or our patent rights may be challenged, invalidated or limited in scope, any of which could have a material adverse effect on our ability to prevent others from competing or interfering with the commercialization of our products.

● We rely heavily on our intellectual property portfolio, including unpatented proprietary technology. If we are unable to protect our intellectual property rights from unauthorized use, our business and competitive position would be harmed.

● The international nature of our business exposes us to business, regulatory, political, operational, financial and economic risks (including ongoing geopolitical conflicts in the Middle East, including transit disruptions in the Strait of Hormuz, and countries in Asia-Pacific) associated with doing business outside of the U.S.

● The price of our Class A common stock has been and may continue to be volatile.

● Our public warrants may never be in the money, and they may expire worthless.

● We are controlled or substantially influenced by Dr. Qichao Hu and certain entities affiliated with Dr. Hu, whose interests may conflict with other stockholders. The concentrated ownership of our dual class common stock could prevent stockholders from influencing significant decisions.

● We had a history of material weaknesses in our internal control over financial reporting, and a failure identify new ones could have an adverse impact on the value of our Class A common stock .

● The other factors disclosed in this Quarterly Report on Form 10-Q and the Company's other filings with the Securities and Exchange Commission (the "SEC"), in particular the risks described in "Part II, Item 1A" of this Quarterly Report and "Part I, Item 1A" of the Company's Annual Report on Form 10-K for the year ended December 31, 2025, filed with the SEC on March 4, 2026.

The forward-looking statements contained in this Quarterly Report on Form 10-Q are based on information available as of the date of this Quarterly Report on Form 10-Q and current expectations, forecasts and assumptions, and involve a number of judgments, risks and uncertainties. Accordingly, forward-looking statements speak only as of the date of this Quarterly Report on Form 10-Q and should not be relied upon as representing the Company's views as of any subsequent date. The Company does not undertake any obligation to update forward-looking statements to reflect events or circumstances after the date they were made, whether as a result of new information, future events or otherwise, except as may be required under applicable securities laws.

[**Table of Contents**](#TOC)

#### PART I - FINANCIAL INFORMATION
**Item 1. Financial Statements**

**SES AI Corporation**

**Condensed Consolidated Balance Sheets**

**(Unaudited)**

---

| | | |
|:---|:---|:---|
| **(in thousands, except share and per share amounts)** | **March 31, 2026** | **December 31, 2025** |
| **Assets** |  |  |
| Current Assets |  |  |
| Cash and cash equivalents | $46940 | $29541 |
| Short-term investments | 130739 | 170091 |
| Accounts receivable | 8183 | 4783 |
| Inventories | 6960 | 5154 |
| Prepaid expenses and other assets | 7748 | 6707 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total current assets | 200570 | 216276 |
| Property and equipment, net | 26318 | 28866 |
| Goodwill | 13272 | 13272 |
| Intangible assets, net | 2749 | 2809 |
| Right-of-use assets, net | 6932 | 7638 |
| Deferred tax assets | 1521 | 1521 |
| Other assets, non-current | 2157 | 2264 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total assets | $253519 | $272646 |
| **Liabilities and Stockholders' Equity** |  |  |
| Current Liabilities |  |  |
| Accounts payable | $5919 | $5694 |
| Operating lease liabilities | 1599 | 2298 |
| Deferred consideration, current | 8025 | 1093 |
| Accrued expenses and other liabilities | 13697 | 15071 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total current liabilities | 29240 | 24156 |
| Sponsor Earn-Out liabilities | 3586 | 7795 |
| Operating lease liabilities, non-current | 5416 | 5813 |
| Unearned government grant | 8612 | 9042 |
| Deferred consideration, non-current |  | 7677 |
| Other liabilities, non-current | 3419 | 3408 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total liabilities | 50273 | 57891 |
| Commitments and contingencies (Note 10) |  |  |
| **Stockholders' Equity** |  |  |
| Common stock: Class A shares, $0.0001 par value, 2,100,000,000 shares authorized; 324,709,477 and 321,551,078 shares issued and outstanding as of March 31, 2026 and December 31, 2025, respectively; <br>Class B shares, $0.0001 par value, 200,000,000 shares authorized; 43,881,251 shares issued and outstanding as of March 31, 2026 and December 31, 2025, respectively | 37 | 37 |
| Additional paid-in capital | 588457 | 588355 |
| Accumulated deficit | (384009) | (371911) |
| Accumulated other comprehensive loss | (1239) | (1726) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total stockholders' equity | 203246 | 214755 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total liabilities and stockholders' equity | $253519 | $272646 |

---

The accompanying notes are an integral part of these unaudited interim condensed consolidated financial statements.

[**Table of Contents**](#TOC)

**SES AI Corporation**

**Condensed Consolidated Statements of Operations and Comprehensive Loss**

 **(Unaudited)**

---

| | | |
|:---|:---|:---|
|  | **Three Months Ended March 31,**  | **Three Months Ended March 31,**  |
| **(in thousands, except share and per share amounts)** | **2026** | **2025** |
| **Revenue from contracts with customers:** |  |  |
| Revenue | $6711 | $5793 |
| Cost of revenues | 5496 | 1236 |
| **Gross profit** | 1215 | 4557 |
| **Operating expenses:** |  |  |
| Research and development | 11031 | 20510 |
| General and administrative | 8053 | 7320 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total operating expenses | 19084 | 27830 |
| Loss from operations | (17869) | (23273) |
| **Other income:** |  |  |
| Gain on change in fair value of Sponsor Earn-Out liabilities | 4208 | 7879 |
| Interest income | 1696 | 2670 |
| Miscellaneous income, net | 281 | 296 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total other income, net | 6185 | 10845 |
| Loss before income taxes | (11684) | (12428) |
| Provision for income taxes | (414) | (4) |
| **Net loss** | (12098) | (12432) |
| **Other comprehensive income (loss), net of tax:** |  |  |
| Foreign currency translation adjustment | 712 | 47 |
| Unrealized loss on short-term investments | (225) | (20) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Total other comprehensive income, net of tax | 487 | 27 |
| **Total comprehensive loss** | $(11611) | $(12405) |
| **Net loss per share attributable to common stockholders:** |  |  |
| Basic and diluted | $(0.04) | $(0.04) |
| **Weighted-average shares outstanding:** |  |  |
| Basic and diluted | 332840425 | 329334434 |

---

The accompanying notes are an integral part of these unaudited interim condensed consolidated financial statements.

[**Table of Contents**](#TOC)

**SES AI Corporation** 

#### Condensed Consolidated Statements of Stockholders' Equity
(Unaudited)

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** |
|  | **Class A and Class B** | **Class A and Class B** |  |  | **Accumulated** | **Total** |
|  | **Common Stock** | **Common Stock** | **Additional** | **Accumulated** | **Other Comprehensive** | **Stockholders'** |
| **(in thousands, except share and per share amounts)** | **Shares** | **Amount** | **Paid-in-Capital** | **Deficit** | **(Loss) Income** | **Equity** |
| Balance – December 31, 2025 | 365432329 | $37 | $588355 | $(371911) | $(1726) | $214755 |
| Issuance of common stock upon exercise of stock options | 598829 |  | 40 |  |  | 40 |
| Restricted stock units vested | 3741303 |  |  |  |  |  |
| Retirement of common shares | (1181733) |  | (2054) |  |  | (2054) |
| Stock-based compensation |  |  | 2116 |  |  | 2116 |
| Net loss |  |  |  | (12098) |  | (12098) |
| Unrealized loss on short-term investments |  |  |  |  | (225) | (225) |
| Foreign currency translation adjustments |  |  |  |  | 712 | 712 |
| Balance — March 31, 2026 | 368590728 | $37 | $588457 | $(384009) | $(1239) | $203246 |

---

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** |
|  | **Class A and Class B** | **Class A and Class B** |  |  | **Accumulated** | **Total** |
|  | **Common Stock** | **Common Stock** | **Additional** | **Accumulated** | **Other Comprehensive** | **Stockholders'** |
| **(in thousands, except share and per share amounts)** | **Shares** | **Amount** | **Paid-in-Capital** | **Deficit** | **(Loss) Income** | **Equity** |
| Balance — December 31, 2024 | 361557285 | $36 | $579378 | $(298871) | $(2233) | $278310 |
| Issuance of common stock upon exercise of stock options | 50000 |  | 8 |  |  | 8 |
| Restricted stock units vested | 3284079 |  |  |  |  |  |
| Forfeitures of Earn-Out Restricted Shares | (2797) |  |  |  |  |  |
| Forfeitures of Restricted Stock Awards | (37735) |  | (31) |  |  | (31) |
| Stock-based compensation |  |  | 3973 |  |  | 3973 |
| Net loss |  |  |  | (12432) |  | (12432) |
| Unrealized loss on short-term investments |  |  |  |  | (20) | (20) |
| Foreign currency translation adjustments |  |  |  |  | 47 | 47 |
| Balance — March 31, 2025 | 364850832 | $36 | $583328 | $(311303) | $(2206) | $269855 |

---

The accompanying notes are an integral part of these unaudited interim condensed consolidated financial statements.

[**Table of Contents**](#TOC)

**SES AI Corporation**

**Condensed Consolidated Statements of Cash Flows**

 **(Unaudited)**

---

| | | |
|:---|:---|:---|
|  | **Three Months Ended March 31,**  | **Three Months Ended March 31,**  |
| **(in thousands)** | **2026** | **2025** |
| **Cash Flows From Operating Activities** |  |  |
| Net loss | $(12098) | $(12432) |
| Adjustments to reconcile net loss to net cash used in operating activities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Gain from change in fair value of Sponsor Earn-Out liabilities | (4208) | (7879) |
| &nbsp;&nbsp;&nbsp;&nbsp;Stock-based compensation | 2116 | 3973 |
| &nbsp;&nbsp;&nbsp;&nbsp;Depreciation and amortization | 2678 | 2516 |
| &nbsp;&nbsp;&nbsp;&nbsp;Gain from change in fair value of deferred consideration | (846) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Accretion income from available-for-sale short-term investments | (499) | (782) |
| &nbsp;&nbsp;&nbsp;&nbsp;Other | 429 | (272) |
| &nbsp;&nbsp;&nbsp;&nbsp;Changes in operating assets and liabilities: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accounts receivable | (3360) | (558) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Inventories | (1748) | 58 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Prepaid expenses and other assets | (946) | (1710) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Right-of-use assets | 692 | 701 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accounts payable | 400 | (108) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Lease liabilities | (1081) | (1044) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accrued expenses and other liabilities | (1329) | (5296) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net cash used in operating activities | (19800) | (22833) |
| **Cash Flows From Investing Activities** |  |  |
| Purchases of property and equipment | (330) | (916) |
| Purchase of short-term investments | (31991) | (104428) |
| Proceeds from the maturities of short-term investments | 71455 | 55500 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net cash provided by (used in) investing activities | 39134 | (49844) |
| **Cash Flows From Financing Activities** |  |  |
| Payments for taxes withheld on vesting of restricted stock | (2053) |  |
| Proceeds from stock option exercises | 40 | 8 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Net cash (used in) provided by financing activities | (2013) | 8 |
| Effect of exchange rates on cash | 41 | (76) |
| Net increase (decrease) in cash, cash equivalents and restricted cash | 17362 | (72745) |
| **Cash, cash equivalents and restricted cash at beginning of period (Note 5)** | 30213 | 129395 |
| **Cash, cash equivalents and restricted cash at end of period (Note 5)** | $47575 | $56650 |
| **Supplemental Cash and Non-Cash Information:** |  |  |
| Accounts payable and accrued expenses related to purchases of property and equipment | $464 | $1174 |

---

The accompanying notes are an integral part of these unaudited interim condensed consolidated financial statements.

[**Table of Contents**](#TOC)

**SES AI Corporation**

**Notes to Condensed Consolidated Financial Statements**

 **(Unaudited)**

**(Dollars in thousands, unless otherwise stated)**

**Note 1. Nature of Business**

#### Organization
SES AI Corporation and its consolidated subsidiaries (together the "Company" or "SES"), is a leading developer and manufacturer of high-performance, artificial intelligence ("AI")-enhanced Lithium-Metal ("Li-Metal") and Lithium-ion ("Li-ion") rechargeable battery technologies for electric vehicles ("EVs"), Urban Air Mobility ("UAM"), drones, robotics, Energy Storage Systems ("ESS") and other applications. The Company's mission is to accelerate the world's energy transition through AI-enhanced material discovery and battery management. SES accelerates its pace of innovation by utilizing superintelligent AI across the spectrum of our business, from research and development, materials sourcing, cell design, engineering and manufacturing, to battery health and safety monitoring. The Company's headquarters are located in Woburn, Massachusetts with research and development facilities located there, in Shanghai and Shenzhen, China, and in Chungju, South Korea. Principal operations have commenced, and the Company has derived revenue from its principal business activities starting in October 2024.

#### Note 2. Basis of Presentation and Summary of Significant Accounting Policies

#### Basis of Presentation
The accompanying unaudited interim condensed consolidated financial statements include the accounts of the Company and have been prepared in accordance with accounting principles generally accepted in the U.S. ("U.S. GAAP") and regulations of the U.S. Securities and Exchange Commission ("SEC") for interim financial reporting. Management believes that all adjustments necessary for the fair presentation of results, consisting of normally recurring items, have been included in the unaudited condensed consolidated financial statements for the interim periods presented. The results of operations for the three months ended March 31, 2026 are not necessarily indicative of the results that may be expected for the full year or any other future interim or annual periods. All intercompany balances and transactions have been eliminated in consolidation. The Company's fiscal year ends on December 31.

The year-end balance sheet data was derived from audited consolidated financial statements. These unaudited interim condensed consolidated financial statements do not include all of the annual disclosures required by U.S. GAAP; accordingly, they should be read in conjunction with the audited consolidated financial statements and accompanying notes as of and for the year ended December 31, 2025 included in the Company's Annual Report on Form 10-K filed with the SEC on March 4, 2026.

***Use of estimates***

The preparation of these unaudited interim condensed consolidated financial statements in conformity with U.S. GAAP requires management to make use of estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of commitments and contingencies, and the reported amounts of revenues, if any, and expenses. The Company bases its estimates on available historical experience and on various other factors that the Company believes are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not apparent from other sources. Changes in estimates are reflected in reported results for the period in which they become known. Actual results may differ from those estimates.

Significant estimates and assumptions include those related to the valuation of (i) certain equity awards including, the Sponsor Earn-Out Shares (as defined below), and performance stock units, (ii) revenue from customers, (iii) deferred tax assets and uncertain income tax positions, (iv) the measurement of operating lease liabilities, (v) the evaluation of the recoverability of long-lived assets and goodwill, including intangible assets, (vi) fair value measurement of acquired intangible assets and deferred consideration, and (vii) warranty reserve. On an ongoing basis, the Company evaluates these judgments and estimates for reasonableness.

***Inventories***

Inventory is stated at the lower of average cost or net realizable value on a first-in, first-out basis. Inventory costs include purchase of materials, freight, storage, hauling, and certification costs. The cost basis of the Company's inventory is reduced for any products that are considered excessive or obsolete based upon assumptions about future demand and market conditions. Once established, write-downs of

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inventory are considered permanent adjustments to the cost basis of inventory and cannot be reversed due to subsequent increases in demand forecasts. As of March 31, 2026 and December 31, 2025, the Company did not have excess or obsolete inventory reserves.

Inventories consisted of the following:

---

| | | |
|:---|:---|:---|
| **(in thousands)** | **March 31, 2026** | **December 31, 2025** |
| Inventories: |  |  |
| &nbsp;&nbsp;Raw materials | $5278 | $3327 |
| &nbsp;&nbsp;Work-in-process | 238 | 27 |
| &nbsp;&nbsp;Finished goods | 1017 | 1110 |
| &nbsp;&nbsp;In-transit | 427 | 690 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total inventories** | $6960 | $5154 |

---

***Fair Value Measurements***

Fair value is defined as an exchange price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities required or permitted to be either recorded or disclosed at fair value, the Company considers the principal or most advantageous market in which it would transact, and it also considers assumptions that market participants would use when pricing the asset or liability.

The Company maximizes the use of observable inputs and minimizes the use of unobservable inputs when measuring fair value. GAAP establishes a fair value hierarchy based on the level of independent, objective evidence surrounding the inputs used to measure fair value. A financial instrument's categorization within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The fair value hierarchy is as follows:

Level 1&nbsp;&nbsp;&nbsp;&nbsp;Observable inputs such as quoted prices in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date.

Level 2&nbsp;&nbsp;&nbsp;&nbsp;Inputs other than the quoted prices in active markets that are observable either directly or indirectly.

Level 3&nbsp;&nbsp;&nbsp;&nbsp;Unobservable inputs in which there are little or no market data and which require the Company to develop its own assumptions.

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Certain of the Company's financial instruments, including cash and cash equivalents, accounts payable, accrued expenses and other current liabilities are carried at cost, which approximates their fair value because of their short-term nature. The following table presents information about the Company's financial assets and liabilities that are measured at fair value on a recurring basis:

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| | | | | |
|:---|:---|:---|:---|:---|
| **(in thousands)** | **Level 1** | **Level 2** | **Level 3** | **Total** |
| **March 31, 2026** |  |  |  |  |
| **Current Assets** |  |  |  |  |
| &nbsp;&nbsp;Cash equivalents in money market funds (Note 5) | $38313 | $— | $— | $38313 |
| &nbsp;&nbsp;U.S. treasury securities (Note 6) | 130038 |  |  | 130038 |
| &nbsp;&nbsp;Equity securities<sup>(1)</sup> (Note 6) | 701 |  |  | 701 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total current assets at fair value** | $169052 | $— | $— | $169052 |
| **Current Liabilities** |  |  |  |  |
| &nbsp;&nbsp;Deferred consideration, current<sup>(2)</sup> |  |  | 8025 | 8025 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total current liabilities at fair value** | $— | $— | $8025 | $8025 |
| **Long-term Liabilities** |  |  |  |  |
| &nbsp;&nbsp;Sponsor Earn-Out liabilities |  | $— | 3586 | 3586 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total long-term liabilities at fair value** | $— | $— | $3586 | $3586 |
| **December 31, 2025** |  |  |  |  |
| **Current Assets** |  |  |  |  |
| &nbsp;&nbsp;Cash equivalents in money market funds (Note 5) | $15554 | $— | $— | $15554 |
| &nbsp;&nbsp;U.S. treasury securities | 169229 |  |  | 169229 |
| &nbsp;&nbsp;Equity securities<sup>(1)</sup> | 862 |  |  | 862 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total current assets at fair value** | $185645 | $— | $— | $185645 |
| **Current Liabilities** |  |  |  |  |
| &nbsp;&nbsp;Deferred consideration, current<sup>(2)</sup> |  |  | 1093 | 1093 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total current liabilities at fair value** | $— | $— | $1093 | $1093 |
| **Long-term Liabilities** |  |  |  |  |
| &nbsp;&nbsp;Sponsor Earn-Out liabilities |  |  | 7795 | 7795 |
| &nbsp;&nbsp;Deferred consideration, non-current<sup>(2)</sup> |  |  | 7677 | 7677 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total long-term liabilities at fair value** | $— | $— | $15472 | $15472 |

---

<sup>(1)</sup> Fair value was determined using publicly quoted market prices obtained from third-party sources in their respective markets.

<sup>(2)</sup> Fair value was determined using the Black Scholes option pricing formula capped call and capped put methodology using risk adjusted discount rate for the revenue and adjusted revenue forecasts.

There were no transfers in or out of Level 3 measurements during the three months ended March 31, 2026.

***Recently Issued Accounting Pronouncements***

In November 2024, the FASB issued ASU No. 2024-03, *Disaggregation of Income Statement Expenses*, which requires more detailed information about the types of expenses included in certain expense captions presented on the consolidated statements of operations. Additionally, this amendment requires the disclosure of a qualitative description of the amounts remaining in relevant expense captions that are not separately disaggregated quantitatively and the disclosure of the total amount of selling expenses. The new standard is effective for annual periods beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027. We are currently evaluating the impact of adoption on our consolidated financial statements.

In July 2025, the FASB issued ASU 2025-05, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets, which allows for a practical expedient election to assume that current conditions as of the balance sheet date do not change for the remaining life of the asset in the development of a reasonable and supportable forecast as part of estimating expected credit losses. The new standard is effective for annual periods beginning after December 15, 2025, with early adoption permitted. The Company noted no material impact from the adoption of this standard on our consolidated financial statements.

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In September 2025, the FASB issued ASU No. 2025-06, *Targeted Improvements to the Accounting for Internal-Use Software*, which removes references to project stages and clarifies the timing of capitalizing costs based on certain thresholds. Additionally, this amendment requires certain disclosures in the notes to the financial statements regardless of financial statement presentation of software costs. The new standard is effective for annual periods beginning after December 15, 2027, and interim periods within those annual reporting periods with early adoption permitted. We are currently evaluating the impact of adoption on our consolidated financial statements and disclosures.

The Company has reviewed all accounting pronouncements issued during the three months ended March 31, 2026 and concluded they were either not applicable or not expected to have a material impact on the Company's unaudited interim condensed consolidated financial statements.

#### Note 3. Acquisition
*Acquisition of Shenzhen UZ Energy Co. Ltd. ("UZ Energy")*

On July 25, 2025, our wholly owned subsidiary, SES AI International I Pte Ltd, entered into a Share Transfer and Share Purchase Agreement (the "Agreement") with UZ Energy and its shareholders to acquire 100% of the share capital of UZ Energy, a China-based battery energy storage system manufacturer. The acquisition closed on September 15, 2025 (the "Closing"). The acquisition of UZ Energy was accounted for as a business combination and the results of UZ Energy's operations from the Closing have been included in our consolidated financial statements.

The aggregate consideration for the acquisition of UZ Energy was approximately RMB 183.5 million ($25.8 million), consisting of the purchase consideration of approximately RMB 93.5 million ($13.1 million) and a capital contribution of RMB 90.0 million ($12.6 million) made by the Company in exchange for newly issued shares of UZ Energy. Purchase consideration consisted of cash payments of approximately RMB 23.5 million ($3.3 million), which was paid during the fourth quarter of 2025, and deferred consideration of approximately RMB 70.0 million ($9.8 million) tied to performance targets, assuming such targets are met but not exceeded. At the Closing, total purchase consideration was valued at RMB 83.3 million ($12.0 million), reflecting the acquisition date fair value of the deferred cash payments. The capital contribution was excluded from purchase consideration as the proceeds will remain with UZ Energy and will be used for working capital requirements.

The deferred consideration is contingent on UZ Energy meeting specified thresholds relating to revenue and cash balances for fiscal years 2025 and 2026. As of the Closing, the fair value of the deferred consideration was estimated using a Black-Scholes option-pricing model. As of March 31, 2026, the possible outcomes for the range of deferred cash payments, on an undiscounted basis, are from $1.4 million to $11.8 million. The analysis considered, among other items, contractual terms of the Agreement, the Company's discount rate, the timing of expected future cash flows and the probability that the revenue and cash balance thresholds required for payment of the deferred consideration will be achieved. The Company recorded the acquisition date fair value of the short-term portion of the deferred payment liability within accrued expenses and other current liabilities.

The purchase price was allocated to the assets acquired and liabilities assumed based on the estimated fair values at the date of acquisition. The excess of the purchase price over the fair value of the net assets acquired was allocated to goodwill. Goodwill is primarily attributed to the expected synergies from future expected economic benefits, including enhanced revenue growth from expanded products and capabilities related to ESS, as well as substantial cost savings from duplicative overheads, streamlined operations and enhanced efficiency. Goodwill is not deductible for tax purposes. The following table summarizes the preliminary allocation of the purchase price (in thousands):

---

| | |
|:---|:---|
| Cash and cash equivalents | $795 |
| Accounts receivable | 1139 |
| Inventory | 3807 |
| Prepaid expenses and other current assets | 3465 |
| Property, plant and equipment | 1023 |
| Intangible assets, net | 1753 |
| Goodwill | 13272 |
| Other assets | 195 |
| Accounts payable | (2644) |
| Accrued expenses and other liabilities | (1828) |
| Deferred revenue | (6862) |
| Operating lease liability | (174) |
| Note payable, current | (1966) |
| &nbsp;&nbsp;Total | $11975 |

---

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The above fair values of assets acquired and liabilities assumed are based on the information that was available as of the reporting date. During the fourth quarter, the Company recorded measurement period adjustments to the preliminary purchase price allocation for the acquisition of UZ Energy. These adjustments, which reflect new information obtained about facts and circumstances that existed as of the acquisition date, resulted in an increase in warranty reserve liability and a corresponding increase in goodwill. The fair values include Level 3 unobservable inputs and were determined using generally accepted valuation techniques. The Company's allocation of the purchase price to certain assets acquired and liabilities assumed is provisional and the Company will continue to adjust those estimates as additional information pertaining to events or circumstances present as of the closing becomes available and final valuation and analysis are completed. The Company will finalize the purchase price allocation no later than one year from the acquisition date.

The following table presents a reconciliation of the deferred consideration liability:

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| | |
|:---|:---|
|  | **(in thousands)** |
| Balance as of December 31, 2025 | $8770 |
| Additions during the year | —  |
| Payments during the year |  |
| Change in fair value | (744) |
| Foreign exchange impact | (1) |
| Balance as of March 31, 2026 | $8025 |

---

The deferred consideration liability, which was measured at fair value on the Closing and was remeasured to fair value for actual 2025 results and expected 2026 results. The change in fair value was recorded within miscellaneous expense, net of the Company's Consolidated Statements of Operations and Comprehensive Loss.

The following table sets forth the components of the identifiable intangible assets acquired and their estimated fair values and useful lives as of the date of the acquisition:

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| | | |
|:---|:---|:---|
| **(in thousands)** | **Fair Value** | **Weighted Average**<br>**Useful Lives** |
| Patents | $1685 | 15 years |
| Trademarks | 68 | 15 years |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total acquired intangible assets** | $1753 |  |

---

The amount of revenue and pre-tax loss the Company recognized since the acquisition, which is included in the consolidated statements of operations and comprehensive loss, was approximately $6.2 million and $0.2 million, respectively.

The Company has not included pro-forma financial information for the acquisition of UZ Energy in these condensed consolidated financial statements. It was determined that the preparation of such information is impracticable as UZ Energy was a foreign, privately held entity that did not historically maintain financial statements in accordance with the U.S. GAAP. The Company has, however, included the results of UZ Energy's operations in its condensed consolidated financial statements from the Closing date forward.

#### Note 4. Revenue
We disaggregate our revenue from customers by the type of arrangement, primarily from the sale of battery products and from providing research and development services, as this depicts how the nature, amount, timing, and cash flows are affected by economic factors. The following table summarizes the Company's disaggregated revenue:

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| | | |
|:---|:---|:---|
|  | **Three Months Ended March 31,**  | **Three Months Ended March 31,**  |
| **(in thousands)** | **2026** | **2025** |
| Revenue from customers: |  |  |
| &nbsp;&nbsp;Product revenue | $6445 | $8 |
| &nbsp;&nbsp;Service revenue | 266 | 5785 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total** | $6711 | $5793 |

---

*Remaining Performance Obligations*

**We have performance obligations associated with commitments in customer contracts for future services that have not yet been recognized as revenue. As of March 31, 2026, the aggregate amount of the transaction price allocated to the remaining performance obligations related to customer contracts that were unsatisfied or partially unsatisfied, was not material. This amount does not include contracts to which the** 

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**customer is not committed. The estimated timing of the recognition of remaining unsatisfied performance obligations is subject to change and is affected by changes to scope, changes in timing of delivery of products and services, or contract modifications.**

*Contract Assets*

The Company records accounts receivable when the right to consideration is unconditional, subject only to the passage of time. Contract assets primarily relate to unbilled service revenue. The Company does not have the right to bill and collect revenue for certain performance obligations until the milestone is complete. Estimated revenue related to milestone achievement cannot be billed or collected until customer acceptance of milestone is completed. Contract assets are included in prepaid and other current assets in the Company's consolidated balance sheets. The following table reflects the change in contract assets for the three months ending March 31, 2025 and March 31, 2026, respectively:

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| | |
|:---|:---|
| **(in thousands)** |  |
| Balance at December 31, 2025 | $1125 |
| Additions | 6872 |
| Billings to customer | (6436) |
| **Balance at March 31, 2026** | $1561 |

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*Contract Liabilities*

Contract liabilities primarily relate to the advance consideration received from customers. Contract liabilities are included in accrued expenses and other current liabilities in the Company's consolidated balance sheets. The following table reflects the change in contract liabilities for the three months ending March 31, 2025 and March 31, 2026, respectively:

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| | |
|:---|:---|
| **(in thousands)** |  |
| Balance at December 31, 2025 | $2669 |
| Additions | 2082 |
| Revenue recognized | (2597) |
| Foreign exchange adjustments | 180 |
| **Balance at March 31, 2026** | $2334 |

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#### Note 5. Cash and Cash Equivalents
Cash, cash equivalents, and restricted cash consisted of the following:

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| | | |
|:---|:---|:---|
| **(in thousands)** | **March 31, 2026** | **December 31, 2025** |
| Cash | $8627 | $13987 |
| Money market funds | 38313 | 15554 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total cash and cash equivalents** | 46940 | 29541 |
| Restricted cash included in other assets | 635 | 672 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total shown in the unaudited condensed consolidated statements of cash flows** | $47575 | $30213 |

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Restricted cash includes cash held in checking and money market funds as collateral to secure certain insurance policies and a letter of credit for corporate lease activity.

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#### Note 6. Short-Term Investments
The following table provides amortized costs, gross unrealized gains and losses, and fair values for the Company's investments in available-for-sale U.S. treasury securities as of March 31, 2026 and December 31, 2025, which have maturity dates that range from 1 month to 10 months, respectively. Fair value was determined using market prices obtained from third-party sources. Realized gains or losses were insignificant for the three months ended March 31, 2026 and 2025.

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| | | | | |
|:---|:---|:---|:---|:---|
| **March 31, 2026** | | | | |
| **(in thousands)** | <br>**Amortized Cost** | **Gross**<br>**Unrealized Gains** | **Gross**<br>**Unrealized Losses** | <br>**Fair Value** |
| Short-term U.S. treasury securities | $130080 | $21 | $(63) | $130038 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total**  | $130080 | $21 | $(63) | $130038 |
| **December 31, 2025** |  | **Gross** | **Gross** |  |
| **(in thousands)** | **Amortized Cost** | **Unrealized Gains** | **Unrealized Losses** | **Fair Value** |
| Short-term U.S. treasury securities | $169046 | $183 | $— | $169229 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total**  | $169046 | $183 | $— | $169229 |

---

The Company has an available-for-sale equity security investment with an initial cost of $0.5 million. As of March 31, 2026 and December 31, 2025, the investment had a fair value of $0.7 million and $0.9 million, respectively. The Company recorded an unrealized loss of $0.2 million and an unrealized gain $0.2 million for the three months ended March 31, 2026 and 2025, respectively, on the change in fair value within miscellaneous (expense) income, net in the condensed consolidated statements of operations and comprehensive loss.

#### Note 7. Accrued Expenses and Other Current Liabilities
The components of accrued expenses and other current liabilities consisted of the following:

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| | | |
|:---|:---|:---|
| **(in thousands)** | **March 31, 2026** | **December 31, 2025** |
| Employee compensation and related costs | $3349 | $4347 |
| Vendor project charges | 3000 | 3000 |
| Contract liabilities | 2334 | 2669 |
| Professional and consulting services | 1370 | 891 |
| Short-term notes payables | 709 | 830 |
| Software services |  | 769 |
| Income taxes payable | 875 | 490 |
| Construction in process | 51 | 53 |
| Other | 2009 | 2022 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total** | $13697 | $15071 |

---

**Note 8. Government Grant**

In December 2022, the Company was awarded a grant (the "Grant") from certain government agencies. The incentives received under the Grant, which is in the form of cash, can be used for facilities related expenses and the purchase of property and equipment. The Company is required to adhere to the following conditions attached to the incentives, which include purchase of a government grant guarantee insurance policy, required minimum investments into specified spending categories and the creation of a minimum amount of permanent full-time jobs in a certain geographical location over the next five years, with the option to extend to 10 years by remaining in a certain geographical location. If determined that we were ineligible to receive the Grant, we could be required to repay the Grant in its entirety with interest. The Company has yet to fulfill the required minimum investment and minimum employment conditions hence interest payable was recorded. Compliance with these conditions will continue to be monitored over the remaining grant period.

As of March 31, 2026 and December 31, 2025, the Company has received, but not yet earned, cash grants of 12.0 billion Korean won. This balance is equivalent to $7.8 million and $8.3 million after translation as of March 31, 2026 and December 31, 2025, respectively, which is disclosed as a noncurrent liability in the unaudited interim condensed consolidated balance sheets.

#### Note 9. Sponsor Earn-Out Liabilities

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The Sponsor Earn-Out shares in Tranche 2 through Tranche 5 have been measured at their estimated fair value using a Monte Carlo simulation valuation model. Inherent in the valuation model are assumptions related to expected stock price volatility, risk-free interest rate, expected term, and dividend yield. The key inputs used in the Monte Carlo simulation model at their respective measurement dates were as follows:

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| | | |
|:---|:---|:---|
|  | **March 31, 2026** | **December 31, 2025** |
| Expected term (in years) | 5.6 | 5.7 |
| Risk free rate | 3.94% | 3.77% |
| Expected volatility | 100.0% | 100.0% |
| Expected dividends | 0% | 0% |
| Stock price | $0.96 | $1.80 |

---

The stock price is based on the closing price of the Company's Class A common stock as of the valuation date and simulated through the end of the earn-out period following Geometric Brownian Motion. The Company estimates the volatility of its common stock by using a weighted average of historical volatilities of SES's shares and select peer companies' common stock that matches the expected term of the awards (range of the weighted average of volatility was 89.2% - 100.8% and 96.2% - 101.2% as of March 31, 2026 and December 31, 2025, respectively). The expected term is derived from a probability weighted model, considering a number of inputs, including the probability of a change in control. The risk-free interest rate is based on the yield curve for zero-coupon U.S. Treasury notes with maturities corresponding to the expected term of the awards. The dividend rate is based on the historical rate, which the Company anticipates remaining at zero.

The following table provides a reconciliation of the beginning and ending balances for the Sponsor Earn-Out liabilities:

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| | |
|:---|:---|
| **(in thousands)** |  |
| Balance at December 31, 2025 | $7795 |
| Change in fair value | (4209) |
| Balance at March 31, 2026 | $3586 |
| Balance at December 31, 2024 | $9472 |
| Change in fair value | (7879) |
| Balance at March 31, 2025 | $1593 |

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#### Note 10. Commitments and Contingencies
*Commitments*

Under the terms of one of the JDAs entered into in 2021, and amended in March 2024, the Company is committed to undertake certain research and development activities to the benefit of both itself and its OEM Partner which involves expenditures related to engineering efforts and purchases of related equipment. The JDA has an agreed-upon commitment value of up to $35 million. As of March 31, 2026, the Company has a remaining commitment to spend up to $7.3 million.

*Legal Contingencies*

From time-to-time, the Company may be subject to claims arising in the ordinary course of business or become involved in litigation or other legal proceedings. While the outcome of such claims or other proceedings cannot be predicted with certainty, the Company's management expects that any such liabilities, to the extent not provided for by insurance or otherwise, would not have a material effect on the Company's financial condition, results of operations or cash flows.

*Indemnifications*

The Company enters into indemnification provisions under agreements with other companies in the ordinary course of business, including, but not limited to, partnerships, landlords, vendors, and contractors. Pursuant to these arrangements, the Company agrees to indemnify, defend, and hold harmless the indemnified party for certain losses suffered or incurred by the indemnified party as a result of the Company's activities. The maximum potential amount of future payments the Company could be required to make under these agreements is not determinable. The Company has never incurred costs to defend lawsuits or settle claims related to these indemnification provisions. In

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addition, the Company indemnifies its officers, directors, and certain key employees against claims made with respect to matters that arise while they are serving in their respective capacities as such, subject to certain limitations set forth under applicable law, and applicable indemnification agreements. The Company maintains insurance, including commercial general liability insurance, product liability insurance, and directors and officers insurance to offset certain potential liabilities under these indemnification provisions. To date, there have been no claims under these indemnification provisions.

#### Note 11. Income Taxes
The Company's effective tax rate for the three months ended March 31, 2026 was (2.6)% compared with 0.0% for the three months ended March 31, 2025. The difference between the provision for income taxes and the income tax determined by applying the statutory federal income tax rate of 21% principally results from income taxes on earnings from its foreign tax jurisdictions offset by losses generated in the U.S. where no benefit was recorded because the Company had fully reserved its deferred tax assets as of March 31, 2026 and December 31, 2025 and the recording of uncertain tax positions and interest expense.

#### Note 12. Net Loss Per Share
Basic net loss per share is computed by dividing net loss by the weighted average number of common shares outstanding for the period. Diluted net loss per share is computed by dividing net loss, as adjusted for changes in fair value recognized in earnings from equity contracts classified as liabilities, by the weighted average number of common shares outstanding and, when dilutive, common share equivalents from outstanding stock options and restricted stock units (using the treasury-stock method). The weighted-average number of common shares used in the computation of basic and diluted net loss per share were as follows:

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| | | |
|:---|:---|:---|
|  | **Three Months Ended March 31,**  | **Three Months Ended March 31,**  |
| **(in thousands, except share and per share amounts)** | **2026** | **2025** |
| Numerator: |  |  |
| &nbsp;&nbsp;Net loss attributable to common stockholders - basic | $(12098) | $(12432) |
| Denominator: |  |  |
| &nbsp;&nbsp;Weighted average shares of common stock outstanding - basic and diluted | 332840425 | 329334434 |
| &nbsp;&nbsp;Net loss per share attributable to common stockholders - basic and diluted | $(0.04) | $(0.04) |

---

The number of common stock equivalents excluded from the computation of diluted net loss per share because either the effect would have been anti-dilutive, or the performance criteria related to such shares and awards had not been met, were as follows:

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| | | |
|:---|:---|:---|
|  | **As of March 31,**  | **As of March 31,**  |
|  | **2026** | **2025** |
| Escrowed earn-out shares | 27690978 | 27690978 |
| Options to purchase common stock | 4832896 | 5997166 |
| Public warrants | 9199947 | 9199947 |
| Sponsor Earn-Out Shares | 5520000 | 5520000 |
| Private warrants | 5013333 | 5013333 |
| Unvested RSUs | 9949526 | 13624859 |
| Unvested PSUs | 4840028 | 2692967 |
| Earn-out Restricted Shares | 742480 | 763193 |
| Unvested RSAs |  | 159116 |
| &nbsp;&nbsp;&nbsp;&nbsp;**Total** | 67789188 | 70661559 |

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**Note 13. 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

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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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| | | |
|:---|:---|:---|
|  | **Three Months Ended March 31,**  | **Three Months Ended March 31,**  |
| **(in thousands)** | **2026** | **2025** |
| Compensation and benefits  | $7770 | $6369 |
| Stock compensation | 2108 | 3931 |
| Lab and equipment | 471 | 5809 |
| General and administrative | 3623 | 3902 |
| Professional services | 3200 | 6085 |
| Facility | 1415 | 1547 |
| Marketing and sales | 497 | 187 |
|  | $19084 | $27830 |

---

*Geographic Information*

Revenue outside of the U.S., based on customer billing address, was 92% and 100% of total revenue for the three months ending March 31 2026 and 2025, respectively. For the three months ending March 31, 2026, there was one customer that accounted for 44% of revenue compared with two customers that accounted for 69% and 31%, respectively, in the three months ending March 31, 2025. As of March 31, 2026, there were two customers that accounted for 31% and 13%, respectively, of accounts receivable compared to two customers that accounted for 64% and 35%, respectively, of accounts receivable as of March 31, 2025.

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**Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations**

*The following discussion and analysis provides information which our management believes is relevant to an assessment and understanding of our consolidated results of operations and financial condition. The following discussion and analysis should be read in conjunction with the accompanying unaudited interim condensed consolidated financial statements as of and for the three months ended March 31, 2026 and the related notes included in this Quarterly Report on Form 10-Q and our audited consolidated financial statements as of and for the year ended December 31, 2025 and the related notes contained in the 2025 Annual Report on Form 10-K. This Quarterly Report on Form 10-Q includes forward-looking statements. These forward-looking statements within the meaning of the federal securities law are based on our current expectations and beliefs concerning future developments and their potential effects on us. These forward-looking statements are not statements of historical fact and may include statements regarding possible or assumed future results of operations. There can be no assurance that future developments affecting us will be those that we have anticipated. These forward-looking statements involve a number of risks, uncertainties (some of which are beyond our control) or other assumptions that may cause actual results or performance to be materially different from those expressed or implied by these forward-looking statements. Factors that might cause or contribute to such forward-looking statements include, but are not limited to, those set forth in Part II, Item 1A of this Quarterly Report on Form 10-Q and in Item 1A. Risk Factors in the 2025 Annual Report on 10-K. Unless the context otherwise requires, references in this section to "the Company," "we," "us" and "our" refer to the business and operations of SES Holdings Pte. Ltd. ("Old SES") and its consolidated subsidiaries prior to the Business Combination and to SES AI Corporation and its consolidated subsidiaries following the Closing. References in this section to our future plans that indicate the timing of when we expect such plans to be completed by a certain year mean at any point during that year.*

#### Overview
We are a leading developer and manufacturer of high-performance, AI-enhanced Lithium-Metal ("Li-Metal") and Lithium-ion ("Li-ion") rechargeable battery technologies for electric vehicles ("EVs"), Urban Air Mobility ("UAM"), drones, robotics, Energy Storage Systems ("ESS") and other applications. The Company's mission is to accelerate the world's energy transition through material discovery and battery management. SES accelerates its pace of innovation by utilizing superintelligent AI across the spectrum of our business, from research and development, materials sourcing, cell design, engineering and manufacturing, to battery health and safety monitoring.

**Key Trends, Opportunities and Uncertainties**

***Historical Performance***

We are an early-stage growth company. We incurred net losses of $12.1 million and $12.4 million for the three months ended March 31, 2026 and 2025, respectively, and had an accumulated deficit of $384.0 million and $311.3 million from our inception through March 31, 2026 and 2025, respectively. We expect to sustain substantial operating expenses, without generating sufficient revenues to cover expenditures, for a few more years. Our historical results may not be indicative of our future results for reasons that may be difficult to anticipate and our ability to generate revenue in the future that is sufficient enough to achieve profitability will depend largely on the successful development of our products and services. Accordingly, the drivers of our future financial results, as well as the components of such results, may not be comparable to our historical results of operations.

We believe that our performance and future success depend on several factors that present significant opportunities for us but also pose significant risks and challenges, including those discussed below and in "Part I, Item 1A. Risk Factors."

***Acquisition of UZ Energy***

We believe that the acquisition of UZ Energy strengthens our capabilities in the ESS market and will provide opportunities for revenue generation. See "Note 3 – Acquisition" of our accompanying consolidated financial statements for further discussion.

***Commercialization of Molecular Universe***

We believe that the commercialization of the Molecular Universe platform represents a significant opportunity to drive future revenue growth and margin expansion, as it should enable us to offer differentiated AI-driven solutions to customers. We expect that successful adoption of Molecular Universe, both as a software product and as an integrated component of our hardware and software offerings, could increase revenues and improve gross margins over time. However, we also recognize that the market for AI-based scientific discovery tools is nascent and rapidly evolving, and that the pace of adoption and competitive dynamics are uncertain. If adoption is slower than anticipated or if competing platforms gain traction, our ability to achieve revenue growth and profitability could be adversely affected.

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***Shift to Joint Venture Manufacturing with Hisun***

Our strategic shift away from in-house manufacturing of certain battery materials, and the announcement of a joint venture with Hisun to produce novel materials at commercial scale, is expected to reduce capital intensity and accelerate time-to-market for new products. We anticipate that this approach will allow us to scale more efficiently and address a broader customer base, which could positively impact future revenues. However, the transition introduces new uncertainties, including the risk of production delays, quality control challenges, and dependence on third-party manufacturing partners. These factors could result in variability in cost of goods sold, potential supply chain disruptions, and fluctuations in cash flows.

***NDAA-Compliant Drone Cell Manufacturing***

Our plan to develop NDAA-compliant manufacturing capacity for drone cells is intended to position us to capture new business from U.S. government and defense-related customers, which we believe could be a driver of future revenue growth. Achieving NDAA compliance may also enhance our competitive positioning and open additional market opportunities. However, this initiative will require substantial capital investment and ongoing compliance costs, and there is uncertainty regarding the timing and magnitude of customer demand. If we are unable to achieve commercial-scale production or if demand for NDAA-compliant drone cells does not materialize as expected, we could experience underutilization of assets and negative impacts on cash flows.

#### Results of Operations
The following table sets forth our historical operating results for the periods indicated:

---

| | | | |
|:---|:---|:---|:---|
|  | **Three Months Ended March 31,**  | **Three Months Ended March 31,**  | $**%** |
| **(in thousands)** | **2026** | **2025** | **Change** |
| Revenue from customers | $6711 | $5793 | 15.8% |
| Cost of revenue | 5496 | 1236 | 344.7% |
| &nbsp;&nbsp;Gross profit | 1215 | 4557 | (73.3)% |
| Operating Expenses |  |  |  |
| &nbsp;&nbsp;Research and development | 11031 | 20510 | (46.2)% |
| &nbsp;&nbsp;General and administrative | 8053 | 7320 | 10.0% |
| Total operating expenses | 19084 | 27830 | (31.4)% |
| Loss from operations | $(17869) | $(23273) | (23.2)% |

---

#### Factors Affecting Operating Results
*Revenue from Customers*

For the three months ended March 31, 2026 and 2025, we generated revenue from two primary sources:

● *Product revenue* generally consists of sales of residential and commercial ESS systems, Li-ion and Li-metal based battery cells for drones, and battery materials such as electrolytes sold to automotive OEMs and other manufacturers .

● *Service revenue* generally consists of services for the discovery, design and development of Li-ion and Li-Metal battery materials in accordance with the customer's specifications .

Revenue from customers for the three months ended March 31, 2026 increased $0.9 million to $6.7 million compared to $5.8 million for the three months ended March 31, 2025.

Service revenues decreased $5.5 million, or nearly 95%, to $0.3 million for the three months ended March 31, 2026 compared to $5.8 million for the three months ended March 31, 2025. This decrease was primarily attributable to completion of the service revenue projects with OEMs and other manufacturers in last quarter of 2025. Product revenue increased $6.4 million, or nearly 100%, for the three months ended March 31, 2026 compared to the three months ended March 31, 2025. This increase was primarily attributable to ESS systems sales from UZ Energy, which was acquired during the third quarter of 2025.

*Cost of Revenue*

Cost of revenue includes materials, labor, depreciation and amortization expense, inventory, freight costs, warranty, and other direct costs related to manufacturing our products and service contracts. Labor consists of personnel-related expenses such as salaries, benefits, and stock-based compensation.

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Costs of revenue for the three months ended March 31, 2026 increased $4.3 million, or nearly 78%, to $5.5 million compared to $1.2 million for the three months ended March 31, 2025. Costs related to service revenues decreased $1.1 million, or 92%, to $0.1 million for the three months ended March 31, 2026 compared to $1.2 million for the three months ended March 31, 2025. This decrease was primarily attributable to completion of the service revenue projects with OEMs and other manufacturers in last quarter of 2025. Costs related to product revenue increased $5.4 million primarily attributable to ESS systems sales from UZ Energy, which was acquired during the third quarter of 2025.

*Gross Profit Margin*

Gross profit margin has been and will continue to fluctuate over time affected by a variety of factors, including the average sales price of our product and service offerings and changes in our mix of revenue between ESS systems, drone batteries, battery materials and service offerings to automotive OEMs and other manufacturers.

Gross profit margin for the three months ended March 31, 2026 and March 31, 2025 were 18.1% and 78.7%, respectively. The fluctuation was primarily due to the effect of changing revenue mix between product and service offerings as explained above.

*Research and Development*

We are an early-stage growth company conducting business activities through one operating segment. Research and development expenses include personnel-related expenses, such as salaries, benefits, and stock-based compensation, for scientists, experienced engineers and technicians. These expenses also cover materials and supplies used in product research and development, process engineering efforts and testing, payments made to consultants, and patent related legal costs. Furthermore, they encompass depreciation, allocated facilities expenses, and information technology costs, including costs incurred for renting graphic processing units ("GPUs") to train AI models.

Research and development expenses for the three months ended March 31, 2026 decreased $9.5 million, or 46.2%, to $11.0 million, compared with $20.5 million for the three months ended March 31, 2025. This decrease primarily resulted from a $5.4 million decrease in automotive OEM JDA related lab equipment expenses, a $3.4 million decrease in AI infrastructure costs incurred from renting Graphic Processing Unit ("GPU") computing resources, and a $0.5 million decrease in stock-based compensation expense attributable to reduced headcount resulting from the company's strategic shift to an AI-based focus.

*General and Administrative*

General and administrative expenses include personnel-related expenses, such as salaries, benefits, and stock-based compensation for our finance, legal and human resource functions. These expenses also cover director and officer insurance, outside contractor fees, and professional services, including audit, compliance, legal, accounting, investor relations, and other advisory services. Additionally, the expenses encompass allocated facilities and information technology costs, such as depreciation and amortization.

General and administrative expenses for the three months ended March 31, 2026 increased $0.7 million, or 10.0%, to $8.1 million, compared with $7.3 million for the three months ended March 31, 2025. This increase primarily resulted from a $0.8 million increase in salaries, and benefits expense due to UZ acquisition and hiring of sales personnel, a $0.3 million increase in professional recruitment fees, a $0.2 million increase in software expenses, and a $0.2 million increase in office and utility expenses. These increases were partially offset by a $0.9 million decrease in stock-based compensation expense due to generally lower headcount.

***Non-Operating Items***

*Interest Income*

Interest income primarily consists of interest earned on our cash and cash equivalents and marketable debt securities, which are primarily invested in money market funds and U.S. treasury securities, and accretion income from the U.S. treasury securities.

During the three months ended March 31, 2026, we had interest income of $1.7 million compared with $2.7 million for the three months ended March 31, 2025. The decrease was lower average short-term investment balances and a decline in market interest rates since the prior year period.

*Change in Fair Value of Earn-Out Liabilities*

During the three months ended March 31, 2026, we incurred a gain of $4.2 million associated with the change in fair value of the Sponsor Earn-Out liabilities compared with a gain of $7.9 million for the three months ended March 31, 2025. This gain on the change in fair value

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of the Sponsor Earn-Out liabilities is tied to SES's stock price, continued volatility in the stock price or changes in the expected term. Refer to "Note 9 – Sponsor Earn-Out Liabilities" to the unaudited interim condensed consolidated financial statements for additional information.

*Miscellaneous Income, Net*

During the three months ended March 31, 2026 and 2025, there was no significant change in the miscellaneous income.

*Provision from Income Taxes*

The provision for income taxes for the three months ended March 31, 2026 was $0.4 million compared to nearly $0.0 million for the three months ended March 31, 2025 mainly due to pre-tax income in China and South Korea.

**Liquidity and Capital Resources**

As of March 31, 2026, we had total cash and cash equivalents of $46.9 million and investments in marketable debt and equity securities of $130.7 million. As an early-stage growth company, the net operating losses we have incurred since inception are consistent with our strategy and budget.

We expect to sustain substantial operating expenses, without generating sufficient revenues to cover expenditures, for a few more years. Our ability to successfully develop our products and services, scale up our commercial operations and expand our business will depend on many factors, including our working capital needs, the availability of equity and/or debt financing and, over time, our ability to generate positive cash flows from operations. We believe that our cash on hand and marketable securities will be sufficient to meet our principal working capital and capital expenditure requirements and ongoing research and development costs, operational and commercial activities, including expenditures for deferred cash payments of an estimated approximately RMB 55.5 million ($8.0 million) related to the acquisition of UZ Energy as well as activities related to the recently acquired ESS business, our plans for NDAA-compliant manufacturing capacity to develop drone cells and development and commercialization of Molecular Universe material discoveries, for a period of at least 12 months from the date of this Quarterly Report. However, additional funding may be required during or after this period to finance certain needs beyond our principal working capital and capital expenditure requirements and ongoing costs, including additional opportunities to purchase data and equipment, develop and train our AI models, and/or develop commercial operations in the United States and abroad, acquisitions or other strategic transactions, and unexpected delays in the development of our battery cells. See "Note 3 – Acquisition" of our accompanying consolidated financial statements for further discussion of the estimated deferred cash payments related to the acquisition of UZ Energy.

If we need additional funding beyond these existing short- to medium-term sources of liquidity, or if we are not able to fund our operations from cash flows generated from anticipated product sales and service offerings, we expect that we will need to raise additional funds. This may be through a variety of possible methods, including, but not limited to, entry into joint ventures or other strategic arrangements, issuance of equity, equity-related or debt securities, and obtaining credit from financial institutions. We currently maintain an at-the-market equity offering program with certain investment banks (the "Agents"), pursuant to which we may offer and sell into the open market from time to time, at our option, shares of our Class A common stock with an aggregate offering price of up to $150.0 million. Subject to the terms and conditions of our agreement with them, the Agents will use their commercially reasonable efforts to sell shares of our Class A common stock from time to time, based on instructions from us (including any price, time or size limits or other parameters or conditions we may impose), in exchange for a commission of up to 3.0% of the aggregate gross sale proceeds. We have also provided the banks with customary indemnification and contribution rights. We are not obligated to sell any Class A common stock and may at any time suspend solicitation and offers thereunder. We sold no shares under the at-the-market equity offering program during the three months ended March 31, 2026, and to date have sold no shares under the program.

***Summary of Cash Flows***

The following table provides a summary of our cash flow data for the periods indicated:

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| | | |
|:---|:---|:---|
|  | **Three Months Ended March 31,**  | **Three Months Ended March 31,**  |
| **(in thousands)** | **2026** | **2025** |
| Cash (used in) provided by: |  |  |
| &nbsp;&nbsp;Operating activities | $(19800) | $(22833) |
| &nbsp;&nbsp;Investing activities | 39134 | (49844) |
| &nbsp;&nbsp;Financing activities | (2013) | 8 |
| Effect of exchange rate changes on cash | 41 | (76) |

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| | | |
|:---|:---|:---|
| **Net increase (decrease) in cash, cash equivalents and restricted cash** | $17362 | $(72745) |

---

***Operating Activities***

Our cash flows used in operating activities to date have primarily comprised research and development and general and administrative activities as discussed above. As we continue to hire research and development personnel to accelerate our Molecular Universe AI-enhanced materials discovery and battery management, we expect our cash used in operating activities to increase before we start to generate any material cash inflows from our operations.

Net cash used in operating activities of $19.8 million for the three months ended March 31, 2026 was primarily attributable to net loss of $12.1 million, as adjusted for a gain on change in fair value of Sponsor Earn-Out liabilities of $4.2 million, gain on change in fair value of deferred consideration of $0.8 million, accretion income from marketable securities of $0.5 million, stock-based compensation expense of $2.1 million, depreciation and amortization of $2.7 million, and $0.4 million of other items. These non-cash operating items were combined with a $7.4 million working capital outflow. The working capital outflow was driven primarily by a $3.4 million increase in trade accounts receivables, a $1.7 million increase in inventories, a $1.3 million decrease in accrued expenses and other liabilities, a $0.9 million increase in prepaid and other assets, and a $0.4 million decrease in net lease activity. These working capital outflows were partially offset by a working capital inflow of a $0.4 million increase in accounts payable. The increase in inventories was primarily due to purchases for ESS commercial operations as a result of the acquisition of UZ Energy in the third quarter of 2025. The decrease in accrued expenses and other liabilities was primarily due to decreases in accruals for purchases of equipment for a JDA, accrued income taxes payable, and payroll related accruals. The increase in prepaids and other assets was primarily due to payments for licenses or hosting software data. The changes to operating lease liabilities and right of use assets was primarily driven by lease modifications. The changes in trade account receivables and accounts payables were driven by timing of receipts.

Net cash used in operating activities of $22.8 million for the three months ended March 31, 2025 was primarily attributable to net loss of $12.4 million, as adjusted for a gain on change in fair value of Sponsor Earn-Out liabilities of $7.9 million, accretion income from marketable securities of $0.8 million, stock-based compensation expense of $4.0 million, depreciation and amortization of $2.5 million, and a $8.0 million working capital outflow. The working capital outflow was driven primarily by a $5.3 million decrease in accrued expenses and other liabilities, a $1.7 million increase in prepaid and other assets, a $1.0 million decrease in operating lease liabilities, a $0.5 million increase in trade accounts receivables, and a $0.1 million decrease in accounts payable. These working capital outflows were partially offset by working capital inflows of a $0.7 million increase in right of use assets. The decrease in accrued expenses and other liabilities was primarily due to accruals for purchases of equipment for a JDA, accrued income taxes payable, and payroll related accruals. The increase in prepaids and other assets was primarily due to accrued receivables for services rendered to customers. The changes to operating lease liabilities and right of use assets were primarily driven by lease modifications. The changes in receivables and payables were driven by timing of receipts.

***Investing Activities***

Net cash provided by investing activities was $39.1 million for the three months ended March 31, 2026 compared to net cash used in investing activities of $49.8 million for the three months ended March 31, 2025. This increase in cash provided was primarily attributable to an $88.4 million increase in cash provided by the maturities of short-term investments, net of purchases in the current year period compared to the prior year period and $0.6 million of lower capital expenditures

***Financing Activities***

Net cash used in financing activities for the three months ended March 31, 2026 was $2.0 million, consisting mainly of payments for withholding taxes on share vesting, compared to an immaterial amount for the three months ended March 31, 2025.

**Recent Accounting Pronouncements**

See "Note 2 – Basis of Presentation" of our accompanying unaudited interim condensed consolidated financial statements for the three months ended March 31, 2026 included in this Quarterly Report on Form 10-Q for more information about recent accounting pronouncements, the timing of their adoption, and their potential impact on our financial condition, results of operations and cash flows.

**Critical Accounting Estimates and Judgments**

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Our financial statements have been prepared in accordance with U.S. GAAP. In the preparation of these unaudited interim condensed consolidated financial statements, we are required to use judgment in making estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities as of the date of the unaudited interim condensed financial statements, as well as the reported expenses incurred during the reporting periods.

There have been no significant changes to our critical accounting policies or in the underlying accounting assumptions and estimates used in such policies from those disclosed in our annual consolidated financial statements and accompanying notes included in our 2025 Annual Report on Form 10-K.

**Other Information**

The Company's website is www.ses.ai. Information contained on the Company's website is not part of this report. Information that we furnish to or file with the SEC, including the Company's annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and any amendments to, or exhibits included in, these reports are made available for download, free of charge, through the Company's website as soon as reasonably practicable. The Company's SEC filings, including exhibits filed therewith, are also available directly on the SEC's website at www.sec.gov.

The Company may use its website as a distribution channel of material company information. Financial and other important information regarding the Company 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 the Company's press releases, SEC filings and public conference calls and webcasts. The contents of our website are not, however, a part of this report.

#### Item 3. Quantitative and Qualitative Disclosures About Market Risk
There have been no significant changes to the Company's market risk during the three months ended March 31, 2026. Refer to "Part II. Item 7A. Quantitative and Qualitative Disclosures About Market Risk" in our 2025 Annual Report on Form 10-K for a discussion of the Company's exposure to market risk.

#### Item 4. Controls and Procedures
**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.

#### PART II - OTHER INFORMATION

#### Item 1. Legal Proceedings

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**From time to time, we may be subject to claims arising in the ordinary course of business or become involved in litigation or other legal proceedings. We are not currently a party to any litigation or legal proceedings that, in the opinion of our management, are likely to have a material adverse effect on our business. Regardless of the outcome, litigation can have an adverse impact on us because of defense and settlement costs, diversion of management resources and other factors.**

#### Item 1A. Risk Factors
In addition to the other information set forth in this Quarterly Report on Form 10-Q, you should carefully consider the risk factors disclosed in "Part I, Item 1A" of our 2025 Annual Report on Form 10-K, and the other reports that we have filed with the SEC. Any of the risks discussed in such reports, as well as additional risks and uncertainties not currently known to us or that we currently deem immaterial, could materially and adversely affect our results of operations, financial condition or prospects. During the period covered by this Quarterly Report on Form 10-Q, there have been no material changes in our risk factors as previously disclosed.

#### Item 2. Unregistered Sales of Equity Securities and Use of Proceeds
None.

#### Item 3. Defaults Upon Senior Securities
None.

#### Item 4. Mine Safety Disclosures
Not applicable.

#### Item 5. Other Information
**Rule 10b5-1 Trading Arrangements**

On March 9, 2026, Hong Gan (our Chief Science Officer) adopted a trading plan intended to satisfy the conditions under Rule 10b5-1(c) of the Exchange Act. Dr. Gan's plan is for the potential exercise of up to 929,832 fully stock options expiring on February 10, 2031, and the sale of the shares of Class A common stock underlying such stock options. The duration of the trading plan is through December 31, 2026, or earlier, upon the completion of all transactions subject to the trading plan.

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#### Item 6. Exhibits

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| | |
|:---|:---|
| **Exhibit No.** | **Description** |
| 3.1 | [Certificate of Incorporation of SES AI Corporation (incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K (File No. 001-39845), filed with the Securities and Exchange Commission on February 8, 2022).](https://www.sec.gov/Archives/edgar/data/0001819142/000119312522031167/d294425dex31.htm) |
| 3.2 | [Bylaws of SES AI Corporation (incorporated by reference to Exhibit 3.2 to the Company's Current Report on Form 8-K (File No. 001-39845), filed with the Securities and Exchange Commission on February 8, 2022).](https://www.sec.gov/Archives/edgar/data/0001819142/000119312522031167/d294425dex32.htm) |
| 10.1† | [Extension to Commercial Lease Agreement, dated as of March 2, 2026](ses-20260331xex10d1.htm). |
| 31.1† | [Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.](ses-20260331xex31d1.htm) |
| 31.2† | [Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.](ses-20260331xex31d2.htm) |
| 32.1\* | [Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.](ses-20260331xex32d1.htm) |
| 32.2\* | [Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.](ses-20260331xex32d2.htm) |
| 101.INS† | Inline XBRL Instance Document – the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document. |
| 101.SCH† | Inline XBRL Taxonomy Extension Schema Document. |
| 101.CAL† | Inline XBRL Taxonomy Extension Calculation Linkbase Document. |
| 101.DEF† | Inline XBRL Taxonomy Extension Definition Linkbase Document. |
| 101.LAB† | Inline XBRL Taxonomy Extension Label Linkbase Document. |
| 101.PRE† | Inline XBRL Taxonomy Extension Presentation Linkbase Document. |
| 104† | Cover Page Interactive Data File (formatted in Inline XBRL and contained in Exhibit 101). |

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†&nbsp;&nbsp;&nbsp;&nbsp;Filed herewith.

\*&nbsp;&nbsp;&nbsp;&nbsp;Furnished herewith.

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#### SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, duly authorized.

Date: April 24, 2026

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| | |
|:---|:---|
| **SES AI CORPORATION** | **SES AI CORPORATION** |
| By: | /s/ Qichao Hu |
| Name: | Qichao Hu |
| Title: | Chief Executive Officer |
|  | (Principal Executive Officer) |
| By: | /s/ Jing Nealis |
| Name: | Jing Nealis |
| Title: | Chief Financial Officer |
|  | (Principal Financial Officer) |

---

## Exhibit 10.1

**Exhibit 10.1**

CUMMINGS PROPERTIES, LLC

STANDARD FORM

**LEASE EXTENSION # 2** 

In connection with a lease in effect between Cummings Properties, LLC, LESSOR, and <u>SolidEnergy Systems, LLC, SolidEnergy Systems Securities Corporation, and SES AI Corporation</u> , LESSEE, at <u>35-B Cabot Road and Roof Rack Area</u> , <u>Woburn</u> , Massachusetts ("premises" or "leased premises"), fully executed on <u>March 30, 2016</u> (as amended and/or extended, the "lease"), and currently scheduled to terminate on <u>August 30, 2026</u> , unless otherwise terminated or extended as provided in the lease, and in consideration of the mutual benefits to be derived herefrom, the parties hereby agree to amend said lease, including its terms, conditions, covenants, and obligations ("terms"), as follows:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. The lease is hereby extended for an additional term of <u>five years</u> and is now currently scheduled to terminate at noon on <u>August 30, 2031</u>, unless otherwise terminated or extended as provided in the lease.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. Effective <u>September 1, 2026</u>, base rent shall be changed to <u>one million seventy two thousand two hundred twenty one (1,072,221)</u> dollars per year or $<u>89,351.75</u> per month. Throughout the term of the lease, the payment of rent on a monthly basis is for the sole benefit and convenience of LESSEE.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. Effective <u>September 1, 2026</u>, the base month from which to determine the amount of each annual increase in the "Cost of Living" shall be November <u>2025</u>, which figure shall be compared with the figure for November <u>2026</u>, and each November thereafter to determine the increase (if any) in the base rent to be paid during the following calendar year.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.a.Section 4 of Lease Extension #1 is hereby deleted and of no further force or effect, and subsection b below shall now apply.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b. The term of the lease will be automatically extended for additional successive periods of <u>five</u> years each unless LESSOR or LESSEE timely notifies the other in writing of either party's exercise of its option to terminate this section. Such written notice, which is a condition precedent to a party's ability to opt out of the automatic extension of the lease term, must clearly state that this section is being terminated, must comply with Section 21 of the lease, and must be provided within the following time period: no more than 12 months and no less than six months prior to the expiration of the then-current lease term. Time is of the essence.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5. The second and third sentences of Section 20 of the lease are hereby deleted and the following shall now apply. If LESSEE defaults in the payment of any rent, thereby committing a substantial breach of the lease, and such breach continues for 10 days after written notice to LESSEE as and how provided in the lease, then liquidated damages equal to the sum of: (i) all past due rent and other charges as of the date of LESSOR's notice; and (ii) the net present value of the balance of rent due for the entire remainder of the unfulfilled lease term, using the published prime rate then in effect, shall immediately become due and payable, since such sum is consistent with a reasonable estimate of the damages that might accrue as a result of such breach and is not a penalty. Unless and until LESSOR terminates the lease, no action taken by LESSOR under Section 20 of the lease shall modify or discontinue LESSEE's obligation to pay rent.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6. Notwithstanding Section 2 of the lease, provided LESSEE is not then in arrears of any rent or invoice payment or otherwise in default of the lease, LESSOR shall apply $125,000 of the cash security deposit in two equal installments of $62,500 toward payment of the monthly rent due for the months of September 2026 and October 2026.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7. Paragraph J of the Rider to Lease is hereby deleted and the following shall now apply. Notwithstanding anything to the contrary in Section 25 of the lease, LESSEE may use and store hazardous material, as that term is defined in M.G.L. c. 21E, §2, within the premises, in an amount not to exceed LESSEE's proportionate share of the total hazardous material storage capacity allowed by applicable building code(s) and governmental authorities, provided all LESSEE parties fully comply with all applicable local, state, and federal laws, regulations, ordinances, and bylaws (collectively, "applicable laws"). Throughout the term of the lease LESSEE shall, at LESSEE's sole expense within 15 days following written request from LESSOR (made not more frequently than once in any 12-month period unless LESSOR reasonably believes LESSEE may be in violation of any of its hazardous material obligations under the lease), deliver to LESSOR written certification from an independent, licensed Massachusetts fire protection engineer or an independent, licensed Massachusetts hazardous material compliance professional confirming that LESSEE's use, handling, and storage of said hazardous material at the premises complies with the lease and with all applicable laws (a "Compliance Report"). If said Compliance Report is not delivered as and when required herein or is not reasonably acceptable to LESSOR (the later of which, the

<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u> LESSOR

<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u> LESSEE

------

**LEASE EXTENSION**

**(continued)**

"Nonperformance Date"), then the permission contained herein for LESSEE to use and store hazardous material in the premises shall automatically terminate and be of no further force or effect, whereupon LESSEE shall remove all hazardous material from the premises within three days of the Nonperformance Date in compliance with all applicable laws. If LESSEE fails to remove all hazardous material within three days of the Nonperformance Date, in compliance with all applicable laws, LESSOR may enter the premises and arrange for the removal, transport, and disposal of the hazardous material, all at LESSEE's sole cost and expense and using LESSEE's Hazardous Waste Generator Identification Number ("HWGIN"). If any hazardous material and/or hazardous waste remains in the premises after the termination of the lease or, if applicable, the date LESSEE otherwise vacates the premises, including but not limited to relocating to a new premises pursuant to an amendment to the lease (in either case, the "Vacate Date"), or if any manifest(s) need to be prepared for the delivery, transport, removal, and/or disposal of any hazardous material and/or hazardous waste to or from the premises (e.g., EPA Form 8700-22) and LESSEE's authorized representative has for any reason not completed same, LESSEE hereby authorizes LESSOR to execute any and all manifests and related documents necessary to properly effectuate such delivery, transport, removal, and/or disposal on LESSEE's behalf and at LESSEE's sole expense using LESSEE's HWGIN. LESSEE shall be solely responsible for and shall indemnify and hold LESSOR and OWNER harmless from any and all liability, damage, and personal injury in any way relating to or arising out of the use, storage, disposal, transport, and/or release by any LESSEE party(ies) of such hazardous material or hazardous waste.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;8. Paragraph FF of the Rider to Lease is hereby deleted and of no further force or effect.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;9. \* If the lease is terminated and LESSEE pays LESSOR liquidated damages in accordance with the lease, LESSOR shall credit LESSEE for any rents actually received by LESSOR over the balance of the unfulfilled lease term from re-letting the premises, minus all costs and expenses incurred by LESSOR as a result of LESSEE's breach. LESSOR's failure to re-let the premises despite LESSOR's reasonable efforts shall not limit LESSEE's liability under the lease.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;10. \* Effective September 1, 2026, the cumulative "Cost of Living" adjustment effective each January 1 during the extended term of the lease provided for in Section 1 above (only) shall not average more than three percent per adjustment.

This extension shall not bind any party in any manner whatsoever until it has been executed by all parties. All other terms of the lease shall continue to apply, and to the extent any inconsistency exists between this extension and the lease, the terms herein shall control and supersede any earlier provisions. In witness whereof, LESSOR and LESSEE, intending to be legally bound, have caused this extension to be executed this <u>2nd</u> day of <u>March</u> , 2026.

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| LESSOR: **CUMMINGS PROPERTIES, LLC** | LESSOR: **CUMMINGS PROPERTIES, LLC** | LESSOR: **CUMMINGS PROPERTIES, LLC** | LESSEE: **SOLIDENERGY SYSTEMS, LLC** | LESSEE: **SOLIDENERGY SYSTEMS, LLC** | LESSEE: **SOLIDENERGY SYSTEMS, LLC** |
| By: | /s/ E. Anderson |  | By:  | By:  | /s/ Qichao Hu |
|  |  | *Duly authorized* | *Duly authorized* | *Duly authorized* | *Duly authorized* |
|  |  |  | Print name: | Qichao Hu | Qichao Hu |
|  |  |  | Title: | CEO | CEO |
|  |  |  | LESSEE: **SES AI CORPORATION** | LESSEE: **SES AI CORPORATION** | LESSEE: **SES AI CORPORATION** |
|  |  |  | By: | /s/ Qichao Hu | /s/ Qichao Hu |
|  |  |  |  | *Duly authorized* | *Duly authorized* |
|  |  |  | Print name: | Qichao Hu | Qichao Hu |
| *08/2024* | *08/2024* | *08/2024* | Title: | CEO | CEO |

---

------

## Exhibit 31.1

**Exhibit 31.1**

**CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER**

**PURSUANT TO RULE 13a-14 AND 15d-14**

**UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED**

I, Qichao Hu, certify that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. I have reviewed this Quarterly Report on Form 10-Q of SES AI Corporation;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c. Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d. Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal controls over financial reporting.

---

| | | |
|:---|:---|:---|
| Date: April 24, 2026 | By: | /s/ Qichao Hu |
|  |  | Qichao Hu |
|  |  | Chief Executive Officer <br>(Principal Executive Officer) |

---

------

## Exhibit 31.2

**Exhibit 31.2**

**CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER**

**PURSUANT TO RULE 13a-14 AND 15d-14**

**UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED**

I, Jing Nealis, certify that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. I have reviewed this Quarterly Report on Form 10-Q of SES AI Corporation;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c. Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d. Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal controls over financial reporting.

---

| | | |
|:---|:---|:---|
| Date: April 24, 2026 | By: | /s/ Jing Nealis |
|  |  | Jing Nealis |
|  |  | Chief Financial Officer <br>(Principal Financial Officer) |

---

------

## Exhibit 32.1

**Exhibit 32.1**

**CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER PURSUANT TO**

**18 U.S.C. 1350**

**(SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002)**

In connection with the Quarterly Report on Form 10-Q of SES AI Corporation (the "<u>Company</u>") for the quarter ended March 31, 2026, as filed with the Securities and Exchange Commission on the date hereof (the "<u>Report</u>"), I, Qichao Hu, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

(1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

---

| | | |
|:---|:---|:---|
| Date: April 24, 2026 | By: | /s/ Qichao Hu |
|  |  | Qichao Hu |
|  |  | Chief Executive Officer <br>(Principal Executive Officer) |

---

------

## Exhibit 32.2

**Exhibit 32.2**

**CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER PURSUANT TO**

**18 U.S.C. 1350**

**(SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002)**

In connection with the Quarterly Report on Form 10-Q of SES AI Corporation (the "<u>Company</u>") for the quarter ended March 31, 2026, as filed with the Securities and Exchange Commission on the date hereof (the "<u>Report</u>"), I, Jing Nealis, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

(1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

---

| | | |
|:---|:---|:---|
| Date: April 24, 2026 | By: | /s/ Jing Nealis |
|  |  | Jing Nealis |
|  |  | Chief Financial Officer <br>(Principal Financial Officer) |

---

------