from SC 13G/A
1 page
<page> Exhibit 1 Agreement as to Joint Filing of Schedule 13g Each of the Undersigned Hereby Affirms That It Is Individually Eligible to Use Schedule 13g, and Agrees That This Schedule 13g Is Filed on Its Behalf. Dated: October 10, 2006 Citigroup Global Markets Limited By: /S/ Andrew M. Gaulter Name: Andrew M. Gaulter Title: Secretary Citigroup Global Markets Europe Limited By: /S/ Andrew M. Gaulter Name: Andrew M. Gaulter Title: Secretary Citigroup Global Markets International LLC By: /S/ Andrew M. Gaulter Name: Andrew M. Gaulter Title: Secretary Citigroup Financial Products Inc. By: /S/ Ali L. Karshan Name: Ali L. Karshan Title: Assistant Secretary Citigroup Global Markets Holdings Inc. By: /S/ Ali L. Karshan Name: Ali L. Karshan Title: Assistant Secretary Citigroup Inc. By: /S/ Ali L. Karshan Name: Ali L. Karshan Title: Assistant Secretary
