USEC Inc. (NYSE: USU), a global energy company, is a leading supplier of enriched uranium fuel for commercial nuclear power plants. Revenues in 2006 were $1.85 billion. USEC headquarters are in Bethesda, Maryland.

Through its subsidiary, the United States Enrichment Corporation, USEC operates the only uranium enrichment facility in the United States: a gaseous diffusion plant in Paducah, Kentucky.

Production of enriched uranium is a key step in producing nuclear fuel used by nuclear power ...