Financial Report Date 4th Quarter 2010 Feb 21, 2011 3rd Quarter 2010 Oct 22, 2010 2nd Quarter 2010 Jul 27, 2010 20-F 2009 Jun 10, 2010 Annual Report 2009 May 5, 2010 1st Quarter 2010 Apr 23, 2010 4th Quarter 2009 Feb 18, 2010 3rd Quarter 2009 Oct 22, 2009 2nd Quarter 2009 Jul 27, 2009 20-F 2008 Jun 10, 2009 Annual Report 2008 May 5, 2009 1st Quarter 2009 Apr 23, 2009 4th Quarter 2008 Feb 19, 2009

Note: The dates mentioned above are probable publication dates for financial reports, according to ASUR’s estimates. They should not be considered official dates, as they may be subject to change.