On September 9, 2021, United States Enrichment Corporation, a Delaware corporation (“Enrichment”), a wholly owned subsidiary of Centrus Energy Corp. (“Centrus”), entered into an Amendment to the Lease Agreement between Enrichment and the United States Department of Energy for the lease of the gas centrifuge enrichment plant facilities in Piketon, Ohio for the American Centrifuge plant and related personal property (the “GCEP Lease”). American Centrifuge Operating, LLC, a Delaware Limited Liability company, a wholly owned subsidiary of Centrus, is a sub-lessee of the GCEP Lease.

to the amendment, the GCEP Lease, which was scheduled to expire by its terms on May 31, 2022, was renewed and extended until December 31, 2025. Except for the extension of the GCEP Lease term, all other terms of the GCEP Lease, as amended, remain unchanged.

The foregoing description of the amendment does not purport to be complete and is qualified in its entirety by the text of the amendment, a copy of which is expected to be filed as an exhibit to Centrus’ quarterly report on Form 10-Q for the third quarter ending September 30, 2021.

Centrus, or its subsidiaries, are also a party to a number of other agreements or arrangements with the United States government, as described in Centrus’ annual report on Form 10-K and other filings with the Securities and Exchange Commission.