Construction and Industry Project Management Veteran to Join USEC Board

USEC Inc.′s board of directors (NYSE: USU) recently elected energy
industry veteran M. Richard Smith to the board, effective January 1,
2011. Smith brings to USEC nearly 40 years of power industry
engineering, construction, project management and M&A experience.

'Rick Smith is a true leader in the energy industry in every sense of
the word,? said Chairman James R. Mellor. 'Rick has a successful history
of overseeing the construction and operation of large energy projects
and possesses a global view of the industry. We are honored to have
someone of his stature join us, and we will look to him for strategic
guidance and advice as the company moves forward in deploying the
American Centrifuge Plant.?

'I am excited to join a company on the cutting edge of an important and
growing market,? said Smith. 'USEC is well positioned to benefit from
the worldwide growth of nuclear power, and I look forward to helping the
company succeed, grow and create shareholder value.?

Smith, 63, retired as president of Bechtel Fossil Power in 2007. During
his tenure, he managed Bechtel's global fossil power engineering and
construction business and more than $5 billion in new construction work.
Before that, he was CEO of Intergen, a Bechtel-Shell joint venture that
operated and eventually sold 17 power plants in Europe, Asia and the
Americas through four transactions valued in excess of $2 billion.

Smith served in various senior management roles during his 30 years with
Bechtel. Over the course of his career, he managed multiple power and
energy projects and transactions totaling more than $10 billion.

USEC Inc., a global energy company, is a leading supplier of enriched
uranium fuel for commercial nuclear power plants.

USEC Inc.

Media:

Paul Jacobson, 301-564-3399

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Investor:

Steve
Wingfield, 301-564-3354