# Centrus–Radiant HALEU Contract: Fuel Supply Progress, Not Microreactor Deployment Yet — source note

Date checked: 2026-09-11 PDT  
Article slug: `centrus-radiant-haleu-contract-microreactor-source-card`

## Bottom line
Centrus Energy announced on September 9, 2026 that it signed a definitive multi-year contract to supply high-assay low-enriched uranium (HALEU) fuel for multiple Radiant Kaleidos microreactors, with deliveries to begin before the end of the decade. This is publishable because it moves the story from conditional fuel allocation / fuel-chain intent toward an offtake-style fuel supply contract. It is still not fuel delivery, NRC operating approval, criticality, commercial deployment, or delivered electricity.

## Facts safely used
- Centrus' official release says Centrus and Radiant announced a definitive multi-year HALEU fuel supply contract for multiple Kaleidos microreactors.
- The release says Centrus will begin delivering HALEU before the end of the decade.
- The release says the agreement includes Radiant prepayments to support Centrus' domestic commercial enrichment-capacity program.
- The release says the HALEU supplied by Centrus will be U.S.-origin / unobligated, meaning available for national-security applications.
- NucNet and Nuclear Engineering International reported the same fuel-contract development and frame it as a HALEU/enrichment bottleneck item for microreactors.
- Prior DOE and Federal Register context remains relevant: DOE's HALEU program and NRC/Radiant material-possession licensing are separate gates from the fuel-supply contract.

## Evidence labels and cautions
- **Company-controlled official source:** Centrus release and PRNewswire distribution establish the contract announcement and company-stated terms.
- **Trade reporting:** NucNet and Nuclear Engineering International corroborate and add context, including HALEU enriched above 5% and below 20% U-235 and the wider microreactor deployment lane.
- **Regulatory context:** DOE HALEU program and Federal Register/NRC materials remain process context, not proof that a Radiant commercial unit is licensed or operating.
- **Do not overclaim:** This is not delivered fuel, an operating Kaleidos reactor, a data-center power purchase agreement, a mining electrification project, or proof that Radiant/Centrus schedules will be met.

Not investment advice: Centrus, uranium, enrichment, HALEU, SMR developers and data-center firm-power narratives are volatile. This source card is infrastructure evidence research only, not a recommendation to buy, sell or hold any security or commodity exposure.