The United States and China are both accelerating uranium enrichment programmes in the name of energy security, with Washington's push centred on high-assay low-enriched uranium — material enriched to between 10% and 20% U-235 that is indispensable for many advanced reactor designs promising longer operating cycles.

Private capital moves first

General Matter Inc. and American Centrifuge Operating, LLC have emerged as central figures scaling operations to produce HALEU. General Matter recently secured leases for federal land in Kentucky, where it plans to operate a multi-billion dollar commercial facility. Even as the Nuclear Regulatory Commission reviews various licensing applications, preliminary site work has already commenced, demonstrating the aggressive timeline adopted by the private sector and government agencies alike.

The Russian import deadline as a forcing function

The 2024 ban on Russian uranium imports highlighted domestic supply chain fragility, and the upcoming 2028 deadline for total cessation of these imports has forced rapid acceleration of domestic enrichment projects. Federal investments totalling billions of dollars have been channelled into what is being called the "American nuclear renaissance," focusing not only on traditional fuel but also on the specialised materials required for next-generation modular reactors.

The 12% question

The Carnegie Endowment for International Peace warns that uranium enriched to 12% poses specific technical hurdles while moving closer to weapons-grade levels. That observation cuts to the heart of the policy debate: the 10–20% HALEU band is deliberately defined by its distance from 20%, and each increment of enrichment assay raises questions about safeguards, physical protection and verification that regulators must answer alongside reactor developers.

What to watch

Three variables will determine whether the U.S. timeline holds: the pace of NRC licensing decisions for enrichment and fuel facilities, the conversion of federal land and funding commitments into installed centrifuge capacity, and the willingness of advanced reactor customers to sign binding offtake for fuel that does not yet exist at commercial scale. China's parallel buildout adds a competitive dimension that is likely to keep HALEU on the policy agenda regardless of individual project outcomes.

This article was assisted by AI analysis. Please refer to the original source for official information.