Reference Form

03/23/2012 - Annex 9-1-II and Item 10 of Reference Form, Meeting of the Board 25/april/2012

ITR - Quarterly Financial Information

04/26/2012 - 1st Quarter of 2012 - IFRS

DFP - Standard Financial Statements BR GAAP

02/17/2012 - 4Q11 Management Report