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Terrestrial Energy Inc. /DE/

For the period ended Aug 11, 2026. Filed Aug 11, 2026.

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A notice of a major event between regular reports, such as results, a deal or a change of executives. It is often the first formal record of the news.

Aug 11, 2026 · Filed Aug 11, 2026

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IMSR$2.84+10.7%Stored close · as of Nov 6, 2026
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EX-99.1 · Supply Chain Developments:

Supply Chain Developments:

●Continued Westinghouse engagement for the supply of uranium tetrafluoride (UF4) at standard enrichment, a key component in IMSR Fuel Salt supply.
●Signed an engineering service agreement with Zachry Nuclear to support site characterization and data-collection at the Texas A&M-RELLIS site.
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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.