Oklo and Centrus Sign Definitive HALEU Supply Agreements for Ohio Nuclear Campus

Oklo Inc. (NYSE: OKLO) and Centrus Energy Corp. (NYSE: LEU) announced on November 12 that they have signed multiple definitive, multi-year contracts covering high-assay low-enriched uranium (HALEU), the specialized fuel that will power Oklo's Aurora powerhouses. The agreements formalize a letter of intent the two companies signed in June 2026 and set the fuel-supply foundation for Oklo's planned nuclear campus in Ohio, according to Oklo's announcement and a matching release from Centrus Energy.

What the Agreements Cover

Under the contracts, Oklo will make prepayments to Centrus for future HALEU deliveries, with those funds intended to support construction of new U.S. uranium enrichment capacity. The companies say the volumes committed are enough to supply up to five of Oklo's Aurora powerhouses for multiple years. Fuel deliveries are scheduled to begin in 2029 from Centrus' American Centrifuge Plant in Pike County, Ohio.

The HALEU purchase is tied to an existing commercial relationship: Meta's prepayment for future Oklo power production underpins the fuel purchase and secures supply for the first phase of Oklo's planned 1.2 gigawatt power campus in Ohio. Oklo's announcement notes that Meta's earlier agreement linked its prepayment for power to advancement of the project's development, connecting the fuel contracts to a broader financing chain that starts with a power customer and flows through to the enrichment supplier.

Financial Scale and What Remains Undisclosed

Neither company's release specifies the dollar value of Oklo's prepayments or what percentage of Centrus' Ohio enrichment capacity the agreements secure. What Centrus did disclose is a cumulative figure: the company says it has now secured $5.4 billion in total customer contracts and commitments to purchase low-enriched uranium and HALEU from its new enrichment capacity, a figure that includes Oklo's new commitments alongside prior agreements from other customers. Centrus separately noted it recently completed and began shipping its first new centrifuge as part of its domestic enrichment expansion, a manufacturing milestone the company frames as supporting the broader buildout these contracts are meant to help fund.

Centrus CEO Amir Vexler said in the companies' joint announcement that "Oklo's prepayments, which add to the others we have previously received, will help fund our buildout as we scale Centrus' proven American Centrifuge technology and qualified manufacturing processes for commercial production." Oklo CEO and co-founder Jacob DeWitte said "securing fuel is essential to scaling our power business beyond our first reactor in Idaho," adding that the agreements "support our initial Ohio deployments and provide fuel for future Aurora powerhouses." Oklo's release also said the effort is expected to support thousands of direct and indirect jobs at full buildout and to strengthen the fuel supply chain for advanced nuclear deployment across the United States.

Bottom line: the releases establish scope and timing — enough HALEU for up to five Aurora powerhouses, with deliveries from Pike County, Ohio, beginning in 2029 — while leaving contract values undisclosed. Interpreting only what the two companies disclosed, the structure links a power customer's prepayment to a fuel prepayment and then to enrichment construction financing; neither release quantifies Oklo's share of that financing or of Centrus' planned capacity.