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Segment Information
9 Months Ended
Sep. 30, 2011
Segment Information 
Segment Information
13. SEGMENT INFORMATION

USEC has two reportable segments:  the LEU segment with two components, SWU and uranium, and the contract services segment.  The LEU segment is USEC's primary business focus and includes sales of the SWU component of LEU, sales of both the SWU and uranium components of LEU, and sales of uranium. The contract services segment includes work performed for DOE and DOE contractors at the Portsmouth site and the Paducah GDP as well as nuclear energy services and technologies provided by NAC International Inc. Gross profit is USEC's measure for segment reporting. Intersegment sales between the reportable segments were less than $0.1 million in each period presented below and have been eliminated in consolidation.

   
Three Months Ended
 September 30,
    
Nine Months Ended
 September 30,
  
   
2011
    
2010
    
2011
    
2010
  
   
(millions)
  
Revenue
                        
LEU segment:
                        
Separative work units
  $ 297.9     $ 404.2     $ 936.7     $ 1,001.8  
Uranium
    21.3       79.3       103.1       164.5  
      319.2       483.5       1,039.8       1,166.3  
Contract services segment
    55.3       81.1       169.6       202.7  
    $ 374.5     $ 564.6     $ 1,209.4     $ 1,369.0  
                                 
Segment Gross Profit
                                
LEU segment
  $ 20.7     $ 32.1     $ 65.5     $ 89.1  
Contract services segment
    6.2       5.9       8.5       19.7  
Gross profit
    26.9       38.0       74.0       108.8  
Advanced technology costs
    26.0       28.6       86.2       80.3  
Selling, general and administrative
    15.6       14.0       47.8       43.4  
Other (income)
    -       (12.4 )     (3.7 )     (32.4 )
Operating income (loss)
    (14.7 )     7.8       (56.3 )     17.5  
Interest expense (income) and issuance costs, net
    0.1       4.9       (0.1 )     4.8  
Income (loss) before income taxes
  $ (14.8 )   $ 2.9     $ (56.2 )   $ 12.7