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                                                        EXHIBIT 1
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<S>                 <C>

                     IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARIES WHICH ACQUIRED SECURITIES
                     --------------------------------------------------------------------------------

                    Citigroup Financial Products Inc. is chartered in Delaware and headquartered
                    in New York, NY.

                    Each of the undersigned hereby affirms the identification and Item 3
                    classification of the subsidiary which acquired the security holdings
                    reported in this Schedule 13G.



                    Date: October 15, 2007



                                         CITIGROUP GLOBAL MARKETS HOLDINGS INC.


                                         By: /s/ Riqueza V. Feaster
                                         -------------------------------------
                                         Name:  Riqueza V. Feaster
                                         Title: Assistant Secretary



                                         CITIGROUP INC.


                                         By: /s/ Riqueza V. Feaster
                                         -------------------------------------
                                         Name:  Riqueza V. Feaster
                                         Title: Assistant Secretary


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