LIS Technologies has kicked off initial technical feasibility and environmental characterization activities at the 206-acre site known as LIST Island, acquired for $8 million within the former K-25 plant area in Oak Ridge, Tennessee. The total projected investment stands at $1.38 billion, with the creation of 203 direct jobs. This will be the largest project ever announced by a private company in the laser uranium enrichment sector on American soil.
The site was no coincidence. K-25 was the largest gaseous diffusion plant ever built, a cornerstone of the Manhattan Project. After the war, it continued producing enriched uranium for both civilian and military purposes until its closure in 1987. Today, through the U.S. Department of Energy’s cleanup and redevelopment programs, that same area is once again becoming a focal point of the nuclear fuel cycle. LIST Island — formerly known as Duct Island — is a peninsula bounded by the Clinch River and Poplar Creek, whose geographic features make it well suited for sensitive nuclear operations. Its proximity to Oak Ridge National Laboratory and the Y-12 National Security Complex provides access to a talent pool that would be hard to replicate anywhere else.
The technology LIST intends to commercialize is laser isotope separation — known in its Australian form as SILEX, but here developed as a proprietary, patented process. Compared to gaseous diffusion and centrifugation, the laser-based process is more energy-efficient and potentially cheaper in terms of both capital expenditure and operating costs. LIST is currently the only American company holding an active patent on this technology as applied to uranium. In December 2025, it received a radioactive materials license from the State of Tennessee, allowing it to handle uranium hexafluoride — UF₆ — at its K-1330 demonstration facility, marking the start of testing with real nuclear material.
The LIST Island project addresses a pressing strategic need: the United States still relies heavily on foreign sources for uranium enrichment, with Russia and Western Europe supplying significant shares of American utility demand. That demand is set to grow as next-generation reactors proliferate, requiring both standard LEU and HALEU — high-assay low-enriched uranium — needed for small modular reactors and advanced reactor designs. In 2024, LIST was already selected as one of six awardees under the Department of Energy’s $3.4 billion IDIQ contract for the LEU Acquisition Program — a recognition that lends the project considerable industrial credibility even before construction begins.
The primary commercial partner is Nasdaq-listed NANO Nuclear Energy, which has signed a collaboration agreement with LIST to integrate enriched UF₆ into a fuel fabrication process. NANO Nuclear will develop the upstream capabilities needed to supply the feedstock to LIST as the facility approaches operational readiness. Commercial site construction is expected to begin during 2026, with first commercial operations targeted by 2030.
If that timeline holds, Oak Ridge would once again become the nerve center of American uranium enrichment — this time powered by a technology radically different from the one that made K-25 famous. A cycle closes, and a new chapter opens for U.S. energy security and the entire global nuclear fuel supply chain.
