HCM II and Terrestrial Energy: SEC declares S-4 effective, shareholder meeting set for Oct 20

Terrestrial Energy Inc. /DE/

SEC declared effective the Registration Statement on Form S-4 on September 26, 2025 for the business combination.
HCM II shareholders to vote at Extraordinary General Meeting on October 20, 2025; record date September 24, 2025.
Post-combination company plans to list on Nasdaq under symbols IMSR and IMSRW upon closing.
Terrestrial Energy develops IMSR small modular nuclear plants with Generation IV technology.
Definitive proxy statement/prospectus began mailing to shareholders on September 26, 2025.

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