Laser Uranium Enrichment Milestone at Historic Oak Ridge Site Signals U.S. Nuclear Fuel Chain Revival

LIS Technologies Inc. (LIST), in partnership with NANO Nuclear Energy Inc. (NASDAQ: NNE), has taken a tangible step toward domestic laser-based uranium enrichment by accepting its first shipment of uranium hexafluoride (UF6) at a demonstration test loop facility in Oak Ridge, Tennessee, on the footprint of the former K-25 gaseous diffusion plant. The October 8, 2026 announcement marks the first physical feedstock arrival following a Tennessee Radioactive Material License granted in December 2025, enabling proof-of-concept testing and optimization of the company's patented CRISLA-4G (Chemical Reaction by Isotope Selective Laser Activation) process, which uses infrared lasers for isotope separation.[1][1]

This development builds on NANO Nuclear's strategic investment and collaboration agreement with LIST, under which NANO supports fuel-cycle integration from enrichment through deconversion and fabrication for its microreactors and broader industry use. LIST, positioned as the only U.S.-origin patented laser enrichment technology developer, was also selected in late 2024 as one of six participants in the U.S. Department of Energy's $3.4 billion LEU Enrichment Acquisition IDIQ program, with NANO as a key subcontractor.[2][3]

Broader context includes LIST's acquisition of additional Oak Ridge facilities for isotope work and deconversion, alongside NANO's recent asset purchases to secure deconversion capabilities. The shipment required custom handling due to its small scale, highlighting gaps in a supply chain historically built for large-scale operators. Plans call for a $1.38 billion commercial plant on 'LIST Island' with operations targeted before 2030, aligning with projected uranium deficits.[4][5]

The milestone advances TRL 5 validation in a relevant environment but remains pre-commercial, with economic viability dependent on pilot-scale results. It underscores efforts to restore U.S. enrichment independence using domestic technology, distinct from Australian-origin SILEX processes.