EX-99 2 y47315ex991.txt ADDITIONAL EXHIBITS EXHIBIT 99.1 SIGNATURES OF REPORTING PERSONS After reasonable inquiry and to the best of our knowledge and belief, the undersigned certify that the information set forth in this Form 3 is true, complete and correct. February 1, 2008 WARBURG PINCUS PRIVATE EQUITY X, L.P. By: Warburg Pincus X, L.P., its general partner By: Warburg Pincus X LLC, its general partner By: Warburg Pincus Partners, LLC, its sole member By: Warburg Pincus & Co., its managing member By: /s/ Scott A. Arenare --------------------------------- Name: Scott A. Arenare Title: Partner WARBURG PINCUS X, L.P. By: Warburg Pincus X LLC, its general partner By: Warburg Pincus Partners, LLC, its sole member By: Warburg Pincus & Co., its managing member By: /s/ Scott A. Arenare --------------------------------- Name: Scott A. Arenare Title: Partner WARBURG PINCUS X LLC By: Warburg Pincus Partners, LLC, its sole member By: Warburg Pincus & Co., its managing member By: /s/ Scott A. Arenare --------------------------------- Name: Scott A. Arenare Title: Partner WARBURG PINCUS PARTNERS, LLC By: Warburg Pincus & Co., its managing member By: /s/ Scott A. Arenare --------------------------------- Name: Scott A. Arenare Title: Partner WARBURG PINCUS & CO. By: /s/ Scott A. Arenare --------------------------------- Name: Scott A. Arenare Title: Partner WARBURG PINCUS LLC By: /s/ Scott A. Arenare --------------------------------- Name: Scott A. Arenare Title: Managing Director CHARLES R. KAYE By: /s/ Scott A. Arenare --------------------------------- Scott A. Arenare, Attorney-in-fact* JOSEPH P. LANDY By: /s/ Scott A. Arenare --------------------------------- Scott A. Arenare, Attorney-in-fact** * Power of Attorney given by Mr. Kaye was previously filed with the SEC on March 2, 2006, as an exhibit to a Schedule 13D filed by Building Products, LLC with respect to Builders FirstSource, Inc. ** Power of Attorney given by Mr. Landy was previously filed with the SEC on March 2, 2006, as an exhibit to a Schedule 13D filed by Building Products, LLC with respect to Builders FirstSource, Inc.