---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-25-064264"
form_type: "8-K"
ticker: "IMSR"
cik: "0002019804"
company_name: "Terrestrial Energy Inc. /DE/"
filed_at: "2025-07-15T23:59:59+00:00"
generated_at: "2026-05-18T06:33:29.751333+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# HCM II Acquisition Corp. non-reliance on FY2024, Q1 2025 financials due to related party disclosure error

## Summary
- Audit committee on July 15, 2025 determined previously issued financial statements should no longer be relied upon.
- Error in Footnote 5 incorrectly stated that the IPO underwriter was a related party of the company.
- Company will restate Annual Report on Form 10-K for FY2024 and Quarterly Report on Form 10-Q for Q1 2025.
- No estimate provided for when the restated filings (2024 Form 10-K/A and 2025 Form 10-Q/A) will be completed.

## SEC filing metadata
- accession: 0001213900-25-064264
- form_type: 8-K
- ticker: IMSR
- cik: 0002019804
- company_name: Terrestrial Energy Inc. /DE/
- filed_at: 2025-07-15T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 4.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2019804/000121390025064264/0001213900-25-064264-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2019804/000121390025064264/ea0249036-8k_hcm2acq.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-25-064264
- JSON: https://secwatch.observer/filing/0001213900-25-064264.json
- Plain text: https://secwatch.observer/filing/0001213900-25-064264.txt

## Key facts
- Auditor Changes
  Terrestrial Energy Inc. /DE/ reported that prior financial statements should not be relied upon.
  - Action: non reliance
  source text: On July 15, 2024, the audit committee of the board of directors of HCM II Acquisition Corp. (the “Company”) concluded that the Company’s previously issued (i) consolidated financial statements as of and for the year ended December 31, 2024 included in its Annual Report on Form 10-K for the year ended December 31, 2024 (“ Annual Period ”), and (ii) unaudited condensed consolidated financial statements for the quarter ended March 31, 2025 included in its Quarterly Report on Form 10-Q for the period ended March 31, 2025 (“ Current Interim Period ”) should no longer be relied upon due to an error in the related party transaction disclosure in Footnote 5 incorrectly stating that the underwriter in the Company’s initial public offering was a related party of the Company.
  evidence_url: https://www.sec.gov/Archives/edgar/data/2019804/000121390025064264/0001213900-25-064264-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.