Centrifuge technology.

      "We have a great team of
scientists, engineers and technicians on
this project," said Ron Green, USEC
senior vice president. "Their talent and
dedication will be even more valuable as
the program enters this critical and
challenging phase of machine testing."

      Most of the machine's components
were manufactured in USEC facilities in
Oak Ridge, Tennessee. The centrifuge is
currently being tested in the K-1600
facility, which was used until 1985 to
develop and evaluate the original U.S.
Department of Energy machines on which
the American Centrifuge is based. It
contains special test stands with
diagnostic instrumentation for assessing
the performance of an individual
centrifuge.

      USEC expects to begin operating
the American Centrifuge Demonstration
Facility in Piketon, Ohio later this
year. The facility will yield cost,
schedule and performance data before
USEC begins construction of the
full-scale American Centrifuge Plant,
which is scheduled to be operable by the
end of the decade. The plant is expected
to provide a reliable, competitive fuel
source for the world's nuclear power
plants, while supporting U.S. energy
security and national security
interests.

      This news release contains
forward-looking information (within the
meaning of the Private Securities
Litigation Reform Act of 1995) that
involves risks and uncertainty,
including certain assumptions regarding
the future performance of USEC. Actual
results and trends may differ materially
depending upon a variety of factors,
which are described in USEC's periodic
filings with the Securities and Exchange
Commission. These SEC filings are
available on USEC's website,
www.usec.com.

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

      CONTACT:
      USEC Inc.
      Elizabeth Stuckle, 301-564-3399
      or
      Charles Yulish, 301-564-3391

      SOURCE: USEC Inc.