EXHIBIT 32
CERTIFICATION OF CEO AND CFO PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
In connection with the quarterly report on Form 10-Q of USEC Inc. for the quarter ended September 30, 2010, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), pursuant to 18 U.S.C. § 1350, John K. Welch, President and Chief Executive Officer, and John C. Barpoulis, Senior Vice President and Chief Financial Officer, each hereby certifies, that, to his knowledge:
(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of USEC Inc.
| November 3, 2010 | /s/ John K. Welch |
| John K. Welch | |
| President and Chief Executive Officer |
| November 3, 2010 | /s/ John C. Barpoulis |
| John C. Barpoulis | |
| Senior Vice President and Chief Financial Officer |