Terrestrial Energy Selected For DOE Fuel Line Pilot Program

Fuel Line Pilot Program selection builds on Terrestrial Energy's Advanced Reactor Pilot Program participation, underscoring DOE's confidence in the Company's IMSR technology and its fuel cycle strategy for commercialization

Fuel Line Pilot Program selection strengthens domestic nuclear fuel supply chain capabilities while supporting accelerated pathway to commercial deployment

CHARLOTTE, N.C., Sept. 30, 2025 (GLOBE NEWSWIRE) -- Terrestrial Energy Inc., a developer of small modular nuclear power plants using Generation IV reactor technology, today announced its selection for the U.S. Department of Energy (DOE) Office of Nuclear Energy's Fuel Line Pilot Program. This selection represents a significant validation of Terrestrial Energy's comprehensive Western supply chain strategy and marks another critical milestone in the company's accelerated Integral Molten Salt Reactor (IMSR) commercialization pathway, further underscoring the Company's leadership in advanced fuel cycle innovation, strengthening its ability to deliver near-term deployment, and reinforcing its role as a cornerstone in U.S. energy security and industrial competitiveness.

The Fuel Line Pilot Program, established in May under President Trump's Executive Order 14301, addresses the nation's shortage of domestic nuclear fuel resources. Through this program, Terrestrial Energy will establish an IMSR fuel line within a DOE-authorized facility, linking early research and demonstration of IMSR fuel salt production directly to commercial licensing and the deployment of its IMSR plant. Through this fuel line project, Terrestrial Energy will strengthen U.S. industrial capability by engaging Western suppliers and partners to advance the molten salt reactor fuel cycle within a secure domestic nuclear fuel supply chain anchored in the United States.

Terrestrial Energy's selection for the Fuel Line Pilot Program directly complements the company's recent selection for DOE's Advanced Reactor Pilot Program announced in August 2025, creating a comprehensive framework that spans both reactor development and fuel supply chain capabilities. Together, these selections position Terrestrial Energy's IMSR technology at the forefront of America's nuclear renaissance while validating the company's integrated approach to commercialization.

Terrestrial Energy's Western supply chain assurance is anchored by its use of Standard Assay Low-Enriched Uranium (SALEU) fuel, enriched to less than 5% uranium-235. Unlike reactor developers dependent on High-Assay Low-Enriched Uranium (HALEU)—the supply of which faces significant supply challenges worsened by geopolitical tensions—Terrestrial Energy avoids these vulnerabilities, enabling rapid scaling to meet growing market demand for clean, reliable energy across data center, industrial heat, and grid applications. With an established SALEU fuel supply supported by domestic U.S. production, decades of regulatory acceptance, and now by the DOE's Nuclear Energy Fuel Line Pilot Program, Terrestrial Energy is uniquely positioned to leverage its fuel line project into an accelerated and practical pathway to early IMSR plant deployment.