Report Highlights

U.S. Position in the Global Micro Reactor Supply Chain

The United States occupies a dominant upstream and design-led position in the global micro reactor supply chain, holding more active NRC design certification applications than any other nation. Domestic developers including Oklo Inc., Ultra Safe Nuclear Corporation, and X-energy control proprietary reactor architectures that foreign manufacturers cannot replicate without licensing. The U.S. exports intellectual property and engineering expertise rather than fabricated units at this stage, positioning American firms as the global standard-setters for licensing frameworks that allied nations including Canada, the UK, and Japan are actively mirroring in their own regulatory structures.

On the import side, the U.S. retains a critical dependency on high-assay low-enriched uranium (HALEU), with domestic enrichment capacity currently insufficient to fuel projected micro reactor deployment at scale. Centrus Energy operates the only NRC-licensed HALEU production facility in the U.S., located in Piketon, Ohio, producing fewer than 900 kilograms annually — a fraction of projected demand. Component-level supply chains for specialized heat pipes and advanced materials also remain partially import-dependent, with South Korea and Japan supplying precision-fabricated metallic components used in heat pipe reactor assemblies sourced by multiple U.S. developers.

Growth Drivers for U.S. Micro Reactor Trade and Production

The most consequential near-term growth driver is sustained Department of Defense funding for mobile and deployable nuclear power. The Strategic Capabilities Office has allocated over USD 300 million toward micro reactor development since 2019, and follow-on procurement contracts for forward operating base power systems are expected through 2028. This defense pull-through funds manufacturing readiness at domestic facilities, enabling cost reductions that will eventually make commercial deployments economically viable without government subsidy — a transition trajectory similar to what GPS and satellite communications technology followed from military to civilian markets.

A second major driver is the rapid expansion of U.S. data center power demand, particularly in markets where grid capacity constraints and decarbonization mandates make nuclear the only dispatchable zero-carbon solution at the required scale. Virginia's data center corridor alone requires an estimated 35 GW of new capacity by 2035, creating a structural demand signal that utilities cannot meet through conventional generation alone. A third driver is the Inflation Reduction Act's nuclear production tax credit, which applies to advanced reactor technologies including micro reactors, improving project-level economics by an estimated 15–20% and catalyzing private investment rounds across multiple developers simultaneously.

Supply Chain Risks and Trade Barriers

The single greatest supply chain risk for the U.S. micro reactor market is HALEU fuel availability. Russia's TENEX has historically been the dominant global supplier of HALEU, and the 2024 Prohibiting Russian Uranium Imports Act, while strategically necessary, removed a major near-term supply source without a credible domestic replacement at comparable volumes. Centrus Energy's Piketon facility requires substantial additional capital investment and regulatory approvals to scale output meaningfully before 2030, creating a supply gap that threatens to delay the first commercial micro reactor deployments by two to three years if not addressed through emergency procurement frameworks or allied-nation enrichment agreements.

A secondary risk is NRC licensing throughput. The NRC has never licensed a micro reactor design, and its existing review frameworks were built for gigawatt-scale light water reactors. Processing timelines for novel reactor architectures currently run six to ten years, which is structurally incompatible with the three-to-five-year deployment timelines that defense and commercial customers require. Trade barrier risks include export control complexities under the Nuclear Non-Proliferation Treaty framework, which constrain the ability of U.S. developers to rapidly commercialize export sales to allied nations seeking to adopt American micro reactor designs, slowing the international revenue streams that would otherwise support domestic manufacturing scale economies.

Trade and Investment Opportunities in the U.S. Micro Reactor Market

The clearest near-term investment opportunity lies in HALEU fuel cycle infrastructure. Any entity that establishes domestic enrichment or fuel fabrication capacity before 2028 will command a captive customer base across all U.S. micro reactor developers simultaneously, as fuel supply is the binding constraint on the entire sector. Centrus Energy has indicated it can expand Piketon output with additional Department of Energy cost-share agreements, and strategic investors who co-fund this expansion gain preferential fuel supply agreements — a structural moat in a market where reactor developers are otherwise competing directly against each other.

On the manufacturing side, there is a significant opportunity for precision industrial manufacturers to establish dedicated micro reactor component production lines. Companies with existing nuclear-grade Quality Assurance Level 1 manufacturing certifications — including BWX Technologies and Curtiss-Wright — are positioned to win long-term supply contracts from multiple reactor developers simultaneously. International inbound investment from Canadian and UK entities seeking to access NRC-licensed designs for cross-border deployment represents a further revenue stream, particularly as the U.S.-Canada Agreement for Peaceful Nuclear Cooperation enables streamlined technology transfers that reduce the regulatory burden of deploying American-designed micro reactors in allied markets.

Market at a Glance

Leading Market Participants

• Oklo Inc.
• X-energy
• Ultra Safe Nuclear Corporation
• Westinghouse Electric Company
• NuScale Power
• BWX Technologies
• Centrus Energy Corp.
• Terrestrial Energy USA
• Kairos Power
• Radiant Nuclear

Regulatory and Trade Policy Environment

The NRC's advanced reactor pre-application review process governs all micro reactor development in the U.S., with the ADVANCE Act of 2024 mandating NRC fee reductions for advanced reactor applicants and setting statutory timelines for design certification reviews. The Department of Energy's Advanced Reactor Demonstration Program has issued USD 3.2 billion in cooperative agreements that require domestic manufacturing content, effectively functioning as a buy-American requirement for federally funded deployments. Export licenses for U.S. micro reactor technology are governed by the Atomic Energy Act's 10 CFR Part 110 regulations, with 123 Agreements for Peaceful Nuclear Cooperation determining which allied nations can receive U.S. reactor technology transfers without individual congressional approval.

The Nuclear Energy Innovation and Modernization Act, fully implemented by 2025, established a risk-informed, technology-neutral licensing framework that is specifically designed to accommodate non-light-water reactor designs — the category that encompasses virtually all U.S. micro reactor architectures. The Prohibiting Russian Uranium Imports Act of 2024 creates direct trade policy pressure to accelerate domestic HALEU production and has prompted DOE to issue emergency procurement solicitations for HALEU from allied enrichers including Orano in France and Urenco in the UK, establishing new import channels that reduce but do not eliminate supply concentration risk from the former primary source.

U.S. Micro Reactor Supply Chain Outlook to 2032

By 2032, the U.S. micro reactor supply chain will have undergone a structural shift from design-phase concentration to early manufacturing-phase competition. Oklo's Aurora plant in Idaho, targeting first power by 2027, and Kairos Power's Hermes demonstration reactor in Tennessee, scheduled for 2026, will generate the first real-world operational data sets that underwrite commercial insurance frameworks, utility procurement decisions, and export licensing approvals simultaneously. These two projects function as the entire sector's proof-of-concept nodes, and their operational performance will determine whether the 2028–2032 period sees accelerated commercial rollout or a reset of investor timelines across the board.

HALEU domestic supply chain development will define the sector's capacity ceiling through 2032 more than any other single variable. If the DOE-Centrus partnership scales Piketon output to 6,000 kilograms per year by 2029 as planned, the fuel constraint eases sufficiently to support ten to fifteen commercial micro reactor deployments by 2032. Concurrently, the emergence of advanced manufacturing techniques including additive manufacturing for reactor pressure boundary components will reduce per-unit fabrication costs by an estimated 30–40%, shifting the U.S. from a pure intellectual-property exporter to a competitive fabricated-component exporter in allied-nation markets, particularly for military and remote community applications in Canada, Australia, and Eastern Europe.