Business Context and Reporting Period
This Form 8-K is a current report filed by Terrestrial Energy Inc. (formerly HCM II Acquisition Corp.) on November 21, 2025. The company is an emerging growth company incorporated in Delaware. The filing primarily addresses a change in the company's independent registered public accounting firm following the consummation of a business combination with Legacy Terrestrial Energy in March 2025.
Key Financial Metrics
This filing is a current report regarding corporate governance and does not contain financial statements, revenue, profit, cash flow, margin, debt, or liquidity data for the reporting period. The text notes that the prior auditor's report for the year ended December 31, 2024, included an explanatory paragraph regarding uncertainty about the predecessor entity's ability to continue as a going concern and an emphasis of matter regarding a restatement of financial statements.
Material Changes
- Dismissal of Auditor: The Audit Committee approved the dismissal of WithumSmith+Brown, PC as the independent registered public accounting firm, effective November 21, 2025.
- Engagement of New Auditor: The Audit Committee approved the engagement of UHY LLP to audit the consolidated financial statements for the year ended December 31, 2025. UHY previously served as the auditor for Legacy Terrestrial Energy.
- No Disagreements: The company reported no disagreements with the former auditor regarding accounting principles, practices, or audit scope during the period from inception through the dismissal date.
Guidance, Outlook, and Risks
The filing does not provide financial guidance, management outlook, or specific risk factors beyond the standard disclosures related to the auditor change. The text confirms that no reportable events or disagreements occurred that would have required reference in the former auditor's report. The dismissal and engagement were approved by the Audit Committee without noted conflict.
Investor Verification Checklist
- Verify the letter from WithumSmith+Brown, PC (Exhibit 16.1) to confirm their agreement with the company's statements regarding the dismissal.
- Review the upcoming 2025 annual report to assess the impact of the auditor change on the audit opinion.
- Monitor future filings for details on the "going concern" uncertainty noted in the 2024 financial statements of the predecessor entity.
- Confirm the transition timeline for UHY LLP's audit of the 2025 fiscal year.