Phase II of the contract called for Centrus to produce an additional 900 kilograms of HALEU by June 30, 2025, for the Department's use. Phase III of the contract included three optional extension periods of three years each, for up to nine additional production years at an annual rate of 900 kilograms of HALEU UF6. On June 17, 2025, the Department of Energy executed a contract amendment to split the first three-year extension period into a one-year extension option followed by a two-year extension option. The Department has exercised the first of these options, kicking off Phase III with additional HALEU production through June 30, 2026. The remaining options in the contract – at the Department's sole discretion and subject to appropriations – would, if exercised, provide for up to eight additional years of production beyond the current extension.