Terrestrial Energy (NASDAQ:IMSR), a developer of Generation IV advanced nuclear technology, today announced its financial results and program milestones for the fourth quarter and full year ended December 31, 2025.
The company’s performance over the past twelve months was marked by significant regulatory de-risking and a substantial strengthening of its liquidity position following the completion of a strategic business combination.
The company concluded 2025 with $298 million in cash and equivalents, a position primarily driven by a business combination that raised approximately $292 million in gross proceeds.
For the full year, Terrestrial Energy reported a net loss of $28 million, reflecting the ongoing transition from design engineering toward site-specific deployment and supply chain industrialization.
A primary highlight of the 2025 program was the selection of the Texas A&M University RELLIS Campus as a site for an Integral Molten Salt Reactor (IMSR) plant.
This partnership is expected to serve as a commercial-scale demonstration of the IMSR’s ability to provide high-temperature heat and power for industrial and research applications.
On the regulatory front, the U.S. Nuclear Regulatory Commission (NRC) formally accepted the IMSR Principal Design Criteria, a critical step that establishes the framework for future construction permit applications.
The company also secured two Other Transaction Authority (OTA) awards from the U.S. Department of Energy (DOE) to support pilot programs for reactor components and fuel-line development.
To further solidify its fuel strategy, Terrestrial Energy entered into a supply contract with Westinghouse Electric Company, ensuring a reliable path for the production of the specialized molten salt fuel required for its proprietary reactor design.