Starting this coming April 18, 2011, ISA shareholders will receive the first dividend payment of COP 43
per share declared by the Shareholders’ Meeting held on March 31, 2011, where dividends of COP 172 per share, payable in four quarterly installments of COP 43 each, on April 18, July 18 and October 18 of 2011 and January 27of 2012, were approved.