EX-99.1 3 w082207c.txt JOINT FILING AGREEMENT Exhibit 99.1 ------------ JOINT FILING AGREEMENT PURSUANT TO RULE 13d-1(k)(1) ---------------------------- The undersigned acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning it contained therein, but shall not be responsible for the completeness and accuracy of the information concerning the others, except to the extent that it knows or has reason to believe that such information is inaccurate. This Agreement may be executed in any number of counterparts and all of such counterparts taken together shall constitute one and the same instrument. Dated: August 27, 2007 WARBURG PINCUS PRIVATE EQUITY VIII, L.P. By: Warburg Pincus Partners LLC, its General Partner By: Warburg Pincus & Co., its Managing Member By: /s/ Scott A. Arenare ------------------------------------------ Name: Scott A. Arenare Title: Partner Dated: August 27, 2007 WARBURG PINCUS INTERNATIONAL PARTNERS, L.P. By: Warburg Pincus Partners LLC, its General Partner By: Warburg Pincus & Co., its Managing Member By: /s/ Scott A. Arenare ------------------------------------------ Name: Scott A. Arenare Title: Partner Dated: August 27, 2007 PP HOLDING, LLC By: Warburg Pincus Private Equity VIII, L.P. and Warburg Pincus International Partners, L.P., its Managing Members By: Warburg Pincus Partners LLC, its General Partner By: Warburg Pincus & Co., its Managing Member By: /s/ Scott A. Arenare ------------------------------------------ Name: Scott A. Arenare Title: Partner Dated: August 27, 2007 WARBURG PINCUS PARTNERS LLC By: Warburg Pincus & Co., its Managing Member By: /s/ Scott A. Arenare ------------------------------------------ Name: Scott A. Arenare Title: Partner Dated: August 27, 2007 WARBURG PINCUS & CO. By: /s/ Scott A. Arenare ------------------------------------------ Name: Scott A. Arenare Title: Partner Dated: August 27, 2007 WARBURG PINCUS LLC By: /s/ Scott A. Arenare ------------------------------------------ Name: Scott A. Arenare Title: Manaaging Director Dated: August 27, 2007 /s/ Scott A. Arenare ----------------------------------------------- Charles R. Kaye By: Scott A. Arenare as Attorney-in-Fact Dated: August 27, 2007 /s/ Scott A. Arenare ----------------------------------------------- Joseph P. Landy By: Scott A. Arenare as Attorney-in-Fact