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Nuclear energy

Terrestrial Energy Begins Trading on Nasdaq with Over $292 Million in Gross Proceeds

Strategic Insights

— 1 min read

Terrestrial Energy, a developer of small modular nuclear plants using advanced reactor technology, has begun trading on the Nasdaq Stock Market LLC under the new ticker symbol "IMSR" after completing its business combination with HCM II Acquisition Corp. The company has received over $292 million in gross proceeds, including $50 million from a common stock PIPE from new non-affiliated fundamental institutional investors and approximately $242 million of cash from HCM II's trust account before expenses. This funding will support Terrestrial Energy's business plan and accelerate technology commercialization.

Key Takeaways:

  • Terrestrial Energy has received over $292 million in gross proceeds from its business combination with HCM II Acquisition Corp., which will be used to support its business plan and accelerate technology commercialization.
  • The company's Integral Molten Salt Reactor (IMSR) nuclear plants are designed to supply low-cost high-temperature, clean, firm, and flexible heat and electricity, delivering sector-leading economics and time-to-market at fleet scale.
  • Terrestrial Energy's IMSR plant design, consisting of two operating IMSRs, has an 822 MWth / 390 MWe capacity and uses Standard-Assay Low Enriched Uranium (SALEU) fuel enriched to contain less than 5% of uranium-235.
  • The company has a track record of regulatory engagements, participation in the U.S. Department of Energy (DOE) Office of Nuclear Energy's Advanced Reactor and Fuel Line Pilot programs, and extensive commercial partnerships with leading national laboratories and industrial strategic partners.
  • Terrestrial Energy's long-established design process is now informed by multiple regulatory engagements, supplier capabilities, and industrial energy consumers, providing a transparent pathway to deliver IMSR plants at fleet scale.

Statistics:

  • Over $292 million in gross proceeds received by Terrestrial Energy from its business combination with HCM II Acquisition Corp.
  • $50 million from a common stock PIPE from new non-affiliated fundamental institutional investors
  • Approximately $242 million of cash from HCM II's trust account before expenses
  • 822 MWth / 390 MWe capacity for the company's IMSR plant design
  • Less than 5% of uranium-235 in the Standard-Assay Low Enriched Uranium (SALEU) fuel used by the company's IMSR plants

Sources:

  • News Release, Terrestrial Energy, "Terrestrial Energy Begins Trading on Nasdaq" (no date)
  • Business Wire, "Terrestrial Energy, Inc. Announces Completion of Business Combination with HCM II Acquisition Corp. and Expected Listing on Nasdaq" (October 28, 2025)

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