BWXT Brings Nuclear Manufacturing Expertise to USEC's American Centrifuge Uranium Enrichment Program.

HOUSTON -- McDermott International, Inc. (NYSE:MDR) ("McDermott") announced today that its subsidiary, BWX Technologies, Inc. ("BWXT"), has been selected to manufacture components to be used in USEC Inc.'s (NYSE:USU) American Centrifuge Plant in Piketon, Ohio.

BWXT was selected for this work because of its extensive experience with the design and cost-effective manufacturing of nuclear components and classified machinery. Boeing was previously performing this work; the transition from Boeing to BWXT will occur in late 2007, and the contract is expected to continue through 2012.

"BWXT is pleased to offer its years of manufacturing expertise to the uranium enrichment program, and we are looking forward to working on this initiative," said John A. Fees, chief executive officer of The Babcock & Wilcox Companies. "The work being performed by USEC is helping to create a solution for the country's emerging energy needs, and we are excited to be a part of it."

Working with the customer, BWXT will manufacture components and machinery for centrifuge machines that will be used in support of USEC's Lead Cascade and commercial plant. This includes tight-tolerance, high-consequence components essential for the operation of the centrifuge machines. BWXT, a wholly-owned subsidiary The Babcock & Wilcox Companies, will also be responsible for providing the facility modifications necessary to support production ramp-up and certain rotor balancing tasks. BWXT will work to incorporate cost reduction initiatives and lean manufacturing processes into the commercial plant design.

McDermott is an engineering and construction company, with specialty manufacturing and service capabilities, focused on energy infrastructure. McDermott's customers are predominantly utilities and other power generators, major and national oil companies, and the United States Government. With its global operations, McDermott operates in over 20 countries with more than 20,000 employees, and can be found on the internet at www.mcdermott.com.

In accordance with the Safe Harbor provisions of the Private Securities Litigation Reform Act of 1995, statements in this press release which are forward-looking and provide other than historical information involve risks and uncertainties that may adversely impact the expectations expressed in these forward-looking statements. The forward-looking statements in this press release include the scope of the work to be performed for USEC. Those statements are made based on various underlying assumptions and are subject to numerous uncertainties and risks, including without limitation, USEC's ability to secure required private or government funding of its uranium enrichment programming. If this or other risks materialize, or if underlying assumptions prove incorrect, actual results may vary materially from those expected. For a more complete discussion of these and other risk factors, please see McDermott's annual report for the year ended December 31, 2006 filed with the Securities and Exchange Commission.