Oak Ridge, Tennessee, and uranium enrichment have a decades-long history. World War II may have ended very differently without the uranium enriched at the K-25, S-50, and Y-12 plants. Thanks to LIS Technologies , uranium enrichment is making a comeback — this time, for peaceful use.  LIS Technologies is currently establishing itself in Tennessee to support the future development of its Chemical Reaction by Isotope Selective Activation (CRISLA) process, a laser-catalyzed uranium-enrichment