Terrestrial Energy Inc. /DE/

Current report

Unless the context otherwise requires, all references in this section to “we”, “us”, “our”, “its”, “Terrestrial Energy”, or the “Company” refer to Terrestrial Energy Inc. and its subsidiaries.

Current report

The following discussion and analysis of the financial condition and results of operations of Terrestrial Energy includes information that Terrestrial Energy’s management believes is relevant to an assessment and understanding of Terrestrial Energy’s consolidated results of operations and financial condition. You should read the following discussion and analysis of our financial condition and results of operations together with our audited consolidated financial statements for the years ended December 31, 2025 and 2024, together with the respective notes thereto. This discussion contains forward-looking statements reflecting current plans, estimates and assumptions concerning events and financial trends that may affect future operating results or financial position, which involve risks and uncertainties. Actual results and the timing of events may differ materially from those contained in these forward-looking statements due to a number of factors.

Current report

For an overview of the Company, see the information above presented under the section labeled “Item 1. Business,” which is in “Part I” of this Annual Report.

Current report

Corporate History

Current report

HCM II Acquisition Corp. (“HCM II”) was a special purpose acquisition company incorporated on April 4, 2024, as a Cayman Islands exempted corporation for the purpose of effecting a merger, share exchange, asset acquisition, stock purchase, reorganization, or similar business combination with one or more businesses. On October 23, 2025, HCM II domesticated as a Delaware corporation and changed its name to “Terrestrial Energy Inc.” (the “Company”). On October 28, 2025, pursuant to the Business Combination Agreement, dated as of March 26, 2025, as amended, the Company completed the Business Combination with Terrestrial Energy Development Inc., (“TEDI”), a Delaware corporation, with TEDI surviving as a wholly owned subsidiary of the Company. Following the Business Combination, the Company became a holding company whose operations are conducted through TEDI and whose primary asset is its equity interest in TEDI. For accounting and financial reporting purposes, the Business Combination was accounted for as a reverse recapitalization, with TEDI treated as the accounting acquirer and HCM II treated as the accounting acquiree.

Current report

Department of Energy (“DOE”) Advanced Nuclear Reactor Pilot Program

Current report

On August 12, 2025, the Company announced that it had been selected for the DOE’s Advanced Reactor Pilot Program, established by the Trump administration’s May 2025 executive order to fast-track commercial licensing activities for small and modular nuclear plants that use advanced reactor technologies, expediting their broad deployment. We believe this represents a significant milestone in Terrestrial Energy’s commercialization pathway, leveraging the program’s fast-track approach to advance the licensing and deployment of the Company’s proprietary IMSR technology.

Current report

DOE Advanced Nuclear Fuel Line Pilot Project

Current report

On September 30, 2025, the Company announced that it had been selected for the DOE’s Advanced Nuclear Fuel Line Pilot Project, established by the Trump administration’s May 2025 executive order to fast-track commercial licensing activities for small and modular nuclear plants that use advanced reactor technologies, expediting their broad deployment. The selection of Terrestrial Energy to the Fuel Line Pilot Project will expand access to the advanced fuel required to test our design and accelerate the transition from demonstration to deployment. When combined with our selection to the Advanced Nuclear Reactor Pilot Program, and our use of standard assay low enriched uranium (“SALEU”) fuel, we believe this represents another significant milestone in Terrestrial Energy’s commercialization pathway as we won’t have to rely on scarce fuel in the commercialization of our proprietary IMSR technology.

Current report

DOE Other Transaction Authority (“OTA”) Agreements

Current report

In January 2026, the Company executed two OTA agreements with the DOE under programs established by Executive Order 14301. The first agreement, for Project TETRA under the DOE's Advanced Reactor Pilot Program, provides for the construction and operation of a pilot reactor utilizing the Company's IMSR technology and SALEU fuel, enabling the Company to advance from design to operation under DOE authorization outside traditional federal contracting constraints. The second agreement, for Project TEFLA under the DOE's Fuel Line Pilot Program, provides for a pilot production facility to demonstrate the Company's proprietary IMSR Fuel Salt production technology using SALEU feedstock. Fuel produced under Project TEFLA will support the Company’s Project TETRA test reactor project, being developed under DOE’s Advanced Reactor Pilot Program. Together, these agreements are intended to support the commercialization of the Company's IMSR Plant.

Current report

For the years ended December 31, 2025 and 2024

Current report

The following tables set forth our consolidated statement of operations for the years ended December 31, 2025 and 2024, and the dollar and percentage change between the two periods:

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Revenue

Current report

During 2024, the Company provided engineering services to a customer, which was recognized over time as the services were performed. The Company’s contracts with customers are typically to provide a significant service by integrating a complex set of agreed tasks into a single deliverable. Consequently, the entire contract is accounted for as one performance obligation. The Company recognizes revenue from engineering services over time using an input method as performance obligations have no alternative use for the Company and the contracts would require payment to be received for the time and effort spent by the Company on progressing the contracts in the event of the customer cancelling the contract prior to completion for any reason other than the Company’s failure to perform its obligations under the contract. Specifically, labor hours incurred are used to measure progress towards complete satisfaction of the service. This is considered a faithful depiction of the transfer of services as the contracts are initially priced on the basis of anticipated hours to complete the projects and, therefore, also represents the amount to which the Company would be entitled based on its performance to date.

Current report

Revenue for theyears ended December 31, 2025 and 2024 was $0.0 million and $0.3 million, respectively. The decrease in revenue in 2025 is attributed to the completion of a contract with a customer in the oil and gas sector for pre-construction and use-specific engineering services, which was completed during 2024 and did not provide any revenue in 2025.

Current report

Operating Expenses

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Research and development expense

Current report

R&D expenses represent costs incurred to design and engineer the IMSR Plant, including the costs of developing design tools. All research and development costs related to product development are expensed as incurred. R&D expense for the years ended December 31, 2025 and 2024 was $9.8 million and $5.2 million, respectively. The increase in 2025 is attributed to an increase in R&D activities performed by the Company in 2025, compared to 2024, as the Company increased its expenditures in testing activities and expanded headcount.

Current report

General and administrative expense

Current report

General and administrative expenses consist of costs, such as rent or lease costs, legal, audit and accounting services, and other professional fees, marketing costs, stock compensation, as well as personnel-related expenses for employees, executives and contractors.

Current report

General and administrative expense for the years ended December 31, 2025 and 2024 was $14.3 million and $4.2 million, respectively. The increase in 2025 compared to 2024 is primarily attributable to additional stock-based compensation expense associated with stock options and restricted stock units issued, along with overall operational growth including headcount as part of the business growth strategy.

Current report

Depreciation and amortization

Current report

Depreciation and amortization consist primarily of depreciation of our computer software and equipment and amortization of our patents and trademarks.

Current report

Depreciation and amortization expense for theyears ended December 31, 2025 and 2024 was $1.2 million and $1.3 million, respectively. The decrease in 2025 was primarily due to certain fixed assets becoming fully depreciated in fiscal 2024.

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Other Income and Expenses

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Government Grants

Current report

Government grants decreased by $0.4 million, or 54% for the year ended December 31, 2025, as compared to the year ended December 31, 2024.

Current report

Interest expense and Interest expense - related parties

Current report

Interest expense and interest expense - related parties increased by $3.0 million, or 231%, forthe year ended December 31, 2025 compared to theyear ended December 31, 2024. The increase was primarily due to the issuance of convertible debt securities by the Company in the third and fourth quarters of 2024 and the first quarter of 2025 which accrued interest expense and the write-off of debt discount for a portion of 2024, and for ten months of the year in 2025. Additionally, average borrowings outstanding were higher during 2025 compared to 2024.

Current report

Interest and Dividend Income

Current report

Interest and dividend income increased by $1.2 million for the year ended December 31, 2025 compared to the same period in 2024 as a result of higher short-term investment balances.

Current report

Foreign exchange gain (loss)

Current report

Foreign exchange gain (loss) decreased by $0.7 million for the year ended December 31, 2025 compared to the same period in 2024 due to the volatility of the US dollar to Canadian dollar exchange rate.

Current report

Historically, the Company’s primary sources of liquidity have been cash flows from private fundraising offerings from related parties or other investors and other financing activities to fund operations. For the years ended December 31, 2025 and 2024, the Company reported operating losses of $25.2 million and $10.4 million, respectively, and negative cash flows from operations of $16.5 million and $8.2 million, respectively. As of December 31, 2025, the Company had $97.2 million in cash and cash equivalents and $200.6 million in short-term investments. The Company had net working capital of $293.6 million and an accumulated deficit of $124.6 million. Management expects that significant on-going expenditures will be necessary to successfully implement our business plan.

Current report

The Company commenced trading on Nasdaq under the symbol “IMSR” on October 29, 2025, after completing its business combination with HCM II on October 28, 2025. Pursuant to the closing of the business combination, the Company received in excess of $292 million in gross proceeds before expenses, which included gross proceeds of $50.0 million from the sale of common stock in a private placement (the “PIPE”) and approximately $242.0 million from HCM II’s trust account following redemptions of less than 1%.

Current report

The Company’s future capital requirements will depend on many factors, including the timing and extent of spending to support further sales and marketing, research and development efforts, the Company’s commercial development and deployment of its IMSR Plant, and future revenues. The Company may seek to obtain additional financing to commercialize the IMSR Plant technology through possible public or private equity offerings, debt financings, corporate collaborations, and other means. We believe that we have sufficient cash and cash equivalents and investments, along with continued access to capital markets, to satisfy our cash requirements for the next 12 months and beyond based on current operating plans.

Current report

Cash flows for the years ended December 31, 2025 and 2024

Current report

The following table summarizes the Company’s cash flows from operating, investing and financing activities for the years ended December 31, 2025 and 2024:

Current report

Net cash used in operating activities for the year ended December 31, 2025 and 2024 was $16.5 million and $8.2 million, an increase of $8.3 million. The increase was primarily due to an increase in the Company’s operating loss after non-cash items. The cause of the increase in the Company’s operating loss was an increase in engineering costs and general and administrative costs as discussed above.

Previous report

We are a blank check company incorporated in the Cayman Islands on April 4, 2024 formed for the purpose of effecting a merger, amalgamation, share exchange, asset acquisition, share purchase, reorganization or other similar business combination with one or more businesses. We intend to effectuate our business combination using cash derived from the proceeds of the Initial Public Offering and the sale of the Private Placement Warrants, our shares, debt or a combination of cash, shares and debt.

Previous report

We expect to continue to incur significant costs in the pursuit of our acquisition plans. We cannot assure you that our plans to complete a business combination will be successful.

Previous report

On March 26, 2025, the Company entered into a Business Combination Agreement (as it may be amended, supplemented or otherwise modified from time to time in accordance with its terms, the “Business Combination Agreement”) by and among the Company, Terrestrial Energy Inc., a Delaware corporation (“Terrestrial Energy”), and HCM II Merger Sub Inc., a Delaware corporation and a direct wholly owned subsidiary of Company (“Merger Sub”), pursuant to which, among other things and subject to the terms and conditions contained therein, Merger Sub will merge with and into Terrestrial Energy (the “Merger”), with Terrestrial Energy continuing as the surviving entity (the “Surviving Company”). The transactions contemplated by the Business Combination Agreement are referred to herein as the “Business Combination.” The combined company’s business will continue to operate through Terrestrial Energy and its subsidiaries.

Previous report

The Business Combination Agreement and the Business Combination were unanimously approved by the board of directors of the Company and the board of directors of Terrestrial Energy.

Previous report

The Business Combination is expected to close in the fourth quarter of 2025, subject to the receipt of the required approvals by Company’s shareholders and the fulfilment of other customary closing conditions.

Previous report

In addition to the Merger, the Company will, subject to obtaining the required shareholder approvals and at least one (1) day prior to the date of the closing of the Business Combination (the “Closing”), change its jurisdiction of incorporation by deregistering as a Cayman Islands exempted company and continuing and domesticating as a corporation incorporated under the laws of the State of Delaware (the “Domestication”). The Company will provide its public shareholders the opportunity to elect, at least two (2) business days prior to the Company shareholder’s meeting, to redeem their shares on the terms and conditions set forth in the Business Combination Agreement and the Company’s governing documents (the “Redemption”). Subject to the receipt of approval from shareholders of the Company, and at least one (1) day prior to the Domestication, the Company will carry out the Redemption.

Previous report

By virtue of the Domestication and subject to the satisfaction or waiver of the conditions of the Business Combination Agreement, including approval of the Company’s shareholders: (i) immediately prior to the Domestication, each of the then issued and outstanding Class B Ordinary Shares of the Company will convert automatically, on a one-for-one basis, into one (1) Class A Ordinary Share, par value of $0.0001 per share, of the Company (the “Sponsor Share Conversion”); and (ii) immediately following the Sponsor Share Conversion, in connection with the Domestication, (x) each then issued and outstanding Class A Ordinary Share (other than any Class A Ordinary Share included in the Cayman Purchaser Units (as defined in the Business Combination Agreement)) will convert automatically, on a one-for-one basis, into one (1) share of common stock, par value $0.0001 per share, of the Company (after the Domestication) (the “Domesticated Common Stock”); (y) each of the then issued and outstanding warrants (other than any Cayman Purchaser Public Warrants (as defined in the Business Combination Agreement) included in the Cayman Purchaser Units) representing the right to purchase one (1) Class A Ordinary Share will convert automatically into a warrant to acquire one (1) share of Domesticated Common Stock (each a “Domesticated Warrant”); and (z) each of the then issued and outstanding Cayman Purchaser Units will be cancelled and each holder thereof will be entitled to one (1) share of Domesticated Common Stock and one-half (1/2) of one (1) Domesticated Warrant.

Previous report

The Company has also entered into subscription agreements (collectively, the “PIPE Subscription Agreements”), each dated as of March 26, 2025, with certain investors (collectively, the “PIPE Investors”), pursuant to which, among other things, the Company has agreed to issue and sell, in private placements to close immediately prior to or substantially concurrently with the Closing, an aggregate of 5,000,000 shares of Domesticated Common Stock for a purchase price of $10.00 per share (the “PIPE Financing”). The PIPE Investors are permitted, under the PIPE Subscription Agreements, to satisfy their commitments thereunder if they hold shares of Domesticated Common Stock that qualify as Non-Redeemed Shares (as defined in the PIPE Subscription Agreements), subject to certain conditions and restrictions set forth in the PIPE Subscription Agreements.

Previous report

We have neither engaged in any operations nor generated any revenues to date. Our only activities from April 4, 2024 (inception) through December 31, 2024 were organizational activities, those necessary to prepare for the Initial Public Offering, described below, and, after our Initial Public Offering, identifying a target company for a business combination. We do not expect to generate any operating revenues until after the completion of our business combination. We generate non-operating income in the form of interest income on marketable securities held in the trust account. We incur expenses as a result of being a public company (for legal, financial reporting, accounting and auditing compliance), as well as for due diligence expenses.

Previous report

Factors That May Adversely Affect our Results of Operations

Previous report

Our results of operations and our ability to complete an initial business combination may be adversely affected by various factors that could cause economic uncertainty and volatility in the financial markets, many of which are beyond our control. Our business could be impacted by, among other things, downturns in the financial markets or in economic conditions, increases in oil prices, inflation, increases in interest rates, supply chain disruptions, declines in consumer confidence and spending, public health considerations, and geopolitical instability, such as the military conflicts in Ukraine and the Middle East. We cannot at this time predict the likelihood of one or more of the above events, their duration or magnitude or the extent to which they may negatively impact our business and our ability to complete an initial business combination.

Previous report

Until the consummation of the Initial Public Offering, our only source of liquidity was an initial purchase of shares of Class B Ordinary Shares, par value $0.0001 per share, by the Sponsor and loans from the Sponsor.

Previous report

On August 19, 2024, we consummated the Initial Public Offering of 23,000,000 Units, which includes the full exercise by the underwriters of their over-allotment option in the amount of 3,000,000 Units generating gross proceeds of $230,000,000. Simultaneously with the closing of the Initial Public Offering, we consummated the sale of an aggregate of 6,850,000 Private Placement Warrants at a price of $1.00 per Private Placement Warrant, in a private placement to the Sponsor and Cantor Fitzgerald & Co., generating gross proceeds of $6,850,000.

Previous report

We intend to use substantially all of the funds held in the Trust Account, including any amounts representing interest earned on the Trust Account (less income taxes payable), to complete our Business Combination. To the extent that our share capital or debt is used, in whole or in part, as consideration to complete our Business Combination, the remaining proceeds held in the Trust Account will be used as working capital to finance the operations of the target business or businesses, make other acquisitions and pursue our growth strategies.

Previous report

We intend to use the funds held outside the Trust Account primarily to identify and evaluate target businesses, perform business due diligence on prospective target businesses, travel to and from the offices, plants or similar locations of prospective target businesses or their representatives or owners, review corporate documents and material agreements of prospective target businesses, and structure, negotiate and complete a Business Combination.

Previous report

For the period from April 4, 2024 (inception) through December 31, 2024, cash used in operating activities was $323,234. Net income of $3,408,788 was affected by operating costs paid by Sponsor in exchange for issuance of Class B founder shares of $12,463, payment of operation costs through promissory note of $45,200 and interest earned on marketable securities held in the trust account of $4,043,585. Changes in operating assets and liabilities was affected by $253,900 of cash provided for operating activities.

Previous report

As of December 31,2024, we had marketable securities held in the trust account of $235,193,585. We intend to use substantially all of the funds held in the Trust Account, including any amounts representing interest earned on the Trust Account (less income taxes payable), to complete our Business Combination. To the extent that our share capital or debt is used, in whole or in part, as consideration to complete our Business Combination, the remaining proceeds held in the Trust Account will be used as working capital to finance the operations of the target business or businesses, make other acquisitions and pursue our growth strategies.** **

Previous report

As of December 31,2024, we had cash held outside of the trust account of $672,555 available for working capital needs. We intend to use the funds held outside the Trust Account primarily to identify and evaluate target businesses, perform business due diligence on prospective target businesses, travel to and from the offices, plants or similar locations of prospective target businesses or their representatives or owners, review corporate documents and material agreements of prospective target businesses, and structure, negotiate and complete a Business Combination.

Previous report

We have until August 19, 2026 to consummate the initial Business Combination (assume no extensions). If we do not complete a Business Combination, we will trigger an automatic winding up, dissolution and liquidation pursuant to the terms of the Amended and Restated Memorandum and Articles of Association. Notwithstanding management’s belief that we would have sufficient funds to execute its business strategy, there is a possibility that business combination might not happen within the 24-month period from the date of the auditors’ report.

Previous report

In connection with our assessment of going concern considerations in accordance with ASC 205-40, Going Concern, as of December 31, 2024, we may need to raise additional capital through loans or additional investments from Sponsor, stockholders, officers, directors, or third parties. Our officers, directors and Sponsor may, but are not obligated to, loan us funds, from time to time or at any time, in whatever amount they deem reasonable in their sole discretion, to meet our working capital needs. Accordingly, we may not be able to obtain additional financing. If we are unable to raise additional capital, it may be required to take additional measures to conserve liquidity, which could include, but not necessarily be limited to, curtailing operations, suspending the pursuit of a potential transaction, and reducing overhead expenses. We cannot provide any assurance that new financing will be available to it on commercially acceptable terms, if at all.

Previous report

Management plans to address this uncertainty through a Business Combination. If a Business Combination is not consummated by the end of the Combination Period, currently August 19, 2026, there will be mandatory liquidation and subsequent dissolution of the Company. Management has determined that the liquidity condition raises substantial doubt about our ability to continue as a going concern. No adjustments have been made to the carrying amounts of assets or liabilities should be required to liquidate after the Combination Period. We intend to complete the initial Business Combination before the end of the Combination Period. However, there can be no assurance that we will be able to consummate any Business Combination by the end of the Combination Period.

Previous report

Off-Balance Sheet Financing Arrangements

Previous report

We have no obligations, assets or liabilities, which would be considered off-balance sheet arrangements as of December 31, 2024. We do not participate in transactions that create relationships with unconsolidated entities or financial partnerships, often referred to as variable interest entities, which would have been established for the purpose of facilitating off-balance sheet arrangements. We have not entered into any off-balance sheet financing arrangements, established any special purpose entities, guaranteed any debt or commitments of other entities, or purchased any non-financial assets.

Previous report

Contractual Obligations

Previous report

We do not have any long-term debt, capital lease obligations, operating lease obligations or long-term liabilities, other than an agreement to pay the Sponsor a total of $15,000 per month for office space, utilities and secretarial and administrative support services.

Previous report

The underwriter will be entitled to a deferred underwriting discount of 4.40% of the gross proceeds of the Initial Public Offering held in the Trust Account other than those sold pursuant to the underwriters’ over-allotment option and 6.40% of the gross proceeds sold pursuant to the underwriter’s over-allotment option, $10,720,000 in the aggregate, payable upon the completion of the Company’s initial Business Combination subject to the terms of the underwriting agreement

Previous report

Critical Accounting Estimates

Previous report

The preparation of financial statement and related disclosures in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statement, and income and expenses during the periods reported. Making estimates requires management to exercise significant judgement. It is at least reasonably possible that the estimate of the effect of a condition, situation or set of circumstances that existed at the date of the financial statement, which management considered in formulating its estimate, could change in the near term due to one or more future confirming events. Accordingly, the actual results could materially differ from those estimates. As of December 31, 2024, we did not have any critical accounting estimates to be disclosed.

Previous report

Recent Accounting Pronouncements

Previous report

In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. The amendments in this ASU require disclosures, on an annual and interim basis, of significant segment expenses that are regularly provided to the chief operating officer decision maker (“CODM”), as well as the aggregate amount of other segment items included in the reported measure of segment profit or loss. The ASU requires that a public entity disclose the title and position of the CODM and an explanation of how the CODM uses the reported measure(s) of segment profit or loss in assessing segment performance and deciding how to allocate resources. Public entities will be required to provide all annual disclosures currently required by Topic 280 in interim periods, and entities with a single reportable segment are required to provide all the disclosures required by the amendments in this ASU and existing segment disclosures in Topic 280. This ASU is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted.

Previous report

Management does not believe that any recently issued, but not effective, accounting standards, if currently adopted, would have a material effect on the Company’s financial statement.

Current report — wording carried from elsewhere

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF TERRESTRIAL ENERGY