USEC Reports on Recent Loan Guarantee Progress at Shareholders′ Meeting

USEC Inc. (NYSE:USU) today hosted its annual shareholders meeting and
reported to its shareholders on the accomplishments of the past year and
the recent progress made in the Company′s application for a $2 billion
loan guarantee from the Department of Energy (DOE).

John K. Welch, USEC president and chief executive officer, said work
done over the past year to address DOE′s concerns had provided a strong
foundation for the comprehensive update to the loan guarantee
application submitted in July 2010. As announced earlier this week,
DOE′s Loan Guarantee Program Office has substantially completed its due
diligence and negotiation stage of the application process and has
advanced the American
Centrifuge Project application to the next phase, which includes
credit review within DOE and the Office of Management and Budget.

'We know this has been a long road for our shareholders, but I believe
we have made significant progress toward obtaining a conditional
commitment for a loan guarantee,? Welch said.

Welch also discussed the nuclear emergency in Japan following the
massive earthquake and tsunami in March, noting that although the recent
events would have a near-term impact on the nuclear power industry, the
world will need nuclear power in the long term to meet a growing demand
for electricity.

To read a copy of Welch′s complete remarks to shareholders, please go to
Speeches in the Newsroom section of the Company′s website, www.usec.com.

During the meeting, shareholders voted to elect all eleven director
nominees for a one-year term. Shareholders also approved the Company′s
advisory resolution on executive compensation and indicated their
preferred frequency for the Company to hold future advisory votes on
executive compensation. The shareholders also approved an amendment to
the Company′s equity incentive plan and ratified the appointment of the
Company′s independent auditors, PricewaterhouseCoopers LLP. The specific
voting results will be provided in a current report on Form 8-K.

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

Forward-Looking Statements

This news release contains 'forward-looking statements? ? that is,
statements related to future events. In this context, forward-looking
statements may address our expected future business and financial
performance, and often contain words such as 'expects,? 'anticipates,?
'intends,? 'plans,? 'believes,? 'will? and other words of similar
meaning. Forward-looking statements by their nature address matters that
are, to different degrees, uncertain. For USEC, particular risks and
uncertainties that could cause our actual future results to differ
materially from those expressed in our forward-looking statements
include, but are not limited to: risks related to the deployment of the
American Centrifuge technology, including risks related to performance,
cost, schedule and financing; our success in obtaining a loan guarantee
from DOE for the American Centrifuge Plant, including our ability to
address the technical and financial concerns raised by DOE and the
timing of any loan guarantee; timing and the outcome of the reviews of
the terms and conditions for a conditional commitment negotiated,
including the determination of a preliminary credit subsidy cost range,
and our ability to meet any required conditions to funding; our ability
to obtain additional financing beyond the $2 billion of DOE loan
guarantee funding for which we have applied, including our success in
obtaining Japanese export credit agency financing of up to $1 billion;
the impact of the demobilization of the American Centrifuge project and
uncertainty regarding our ability to remobilize the project and the
potential for termination of the project; our ability to meet the
November 2011 financing milestone and other milestones under the June
2002 DOE-USEC Agreement; restrictions in our credit facility that may
impact our operating and financial flexibility and spending on the
American Centrifuge project; risks related to the completion of the
remaining two phases of the three-phased strategic investment by Toshiba
Corporation and the The Babcock & Wilcox Investment Company, including
our ability to satisfy the significant closing conditions in the
securities purchase agreement governing the transactions and our ability
to close on the second phase of the transactions prior to the outside
date of June 30, 2011, and the impact of a failure to consummate the
transactions on our business and prospects; changes in U.S. government
priorities and the availability of government funding, including loan
guarantees; the competitive environment for our products and services;
changes in the nuclear energy industry; the impact of the recent natural
disaster in Japan on the nuclear industry and on our business, results
of operations and prospects; and other risks and uncertainties discussed
in our filings with the Securities and Exchange Commission, including
our Annual Report on Form 10-K and quarterly reports on Form 10-Q, which
are available on our website www.usec.com.
We do not undertake to update our forward-looking statements except as
required by law.

USEC Inc.

Investors:

Steven Wingfield, 301-564-3354

or

Media:

Paul
Jacobson, 301-564-3399