Note 3. Prepaid Expenses - Current and Long-term Assets

In 2022, the Company entered into agreements with Idaho National Laboratory (INL), in collaboration with the DOE, to support the development of Lightbridge Fuel™. At the time of signing, the Company made advanced payments for future project work totaling $0.4 million to Battelle Energy Alliance, LLC (BEA), DOE’s operating contractor for INL. In May 2023, the Company and INL modified the agreements to extend the contract term to May 2029, aligning it with the duration of the irradiation testing and increasing the advanced payments by $0.1 million. The prepaid project costs and other long-term assets were $0.5 million as of September 30, 2023 and $0.4 million as of December 31, 2022.