Schedule

Event Date Brasil Round 8 offered blocks announcement August 07, 2006 Publication of Initial Tender Protocol and Draft Concession Agreement August 25, 2006 Roadshow - public hearings (Rio de Janeiro) August 28, 2006 Data Package available August 30, 2006 Legal-Tax Seminar / Technical Workshop September 15, 2006 Publication of Final Tender Protocol and Concession Agreement October 13, 2006 Deadline for presentation of qualification documents October 27, 2006 Presentation in Salvador (Portuguese) November 01, 2006 Presentation in São Paulo (Portuguese) November 06, 2006 Deadline for payment of participation fees November 13, 2006 Deadline for presentation of garantees November 21, 2006 Bidding Conference November 28 and 29, 2006* Signature of the Concession Agreements Until March 14, 2007

* Day 27: Registration

This schedule is indicative. It can be modified or cancelled at ANP´s sole discretion.