secwatch.observer — SEC 8-K summary ====================================== Issuer: Terrestrial Energy Inc. /DE/ (IMSR) CIK: 0002019804 Form: 8-K Filed at: 2025-11-24T23:59:59+00:00 Accession: 0001104659-25-115406 Event type: other_material Sentiment: neutral Materiality: 0.60 Item codes: 4.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Terrestrial Energy replaces Withum with UHY as independent auditor ------------------------------------------------------------------ - Audit committee dismissed WithumSmith+Brown on Nov 21, 2025, effective upon notice Nov 24. - Withum's 2024 report on HCM II (pre-merger SPAC) had going-concern and restatement emphasis paragraphs. - No disagreements or reportable events occurred during Withum's tenure through dismissal. - UHY LLP engaged as new auditor for FY2025; UHY previously audited Legacy Terrestrial Energy. - HCM II did not consult UHY on any accounting matters before engagement. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/2019804/000110465925115406/0001104659-25-115406-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/2019804/000110465925115406/tm2531980d1_8k.htm HTML page: https://secwatch.observer/filing/0001104659-25-115406 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer