Starting this Monday July 18, 2011, ISA shareholders will receive the second dividend payment of COP 43 per share, declared by the Shareholders’ Meeting held

ISA informs to the market that the Viability Studies of Autopistas de la Montaña will be delivered to INCO on August 10, 2011 in accordance

Engineer Germán Ortiz Plata, who was formerly acting as General Manager of ISA Bolivia since January 18, 2008, will now hold the position of Infrastructure

ISA announces second quarter results 2011

On August 10, 2011, a meeting was held for the incorporation of company Sistemas Inteligentes en Red S.A.S, an affiliate of XM Compañía de Expertos

ISA informs about the creation of the Corporate Audit Committee

ISA reports that on Friday, August 26, 2011, it conducted a domestic public debt management operation, which was approved by the Ministry of Finance by

Three substations and four transmission lines are part of the lots.

ISA submitted to the National Institute of Concessions (Instituto Nacional de Concesiones -INCO-) a full report on the scope of studies of the Autopistas de

Regarding the information published today in newspapers Portafolio and El Tiempo stating that ISA would be interested in investing in Portugal

ISA informs that Mr. Mauricio Cárdenas Santa María, as new Minister of Mines and Energy, is now becoming principal member of ISA´s Board of Directors.

The company will pay over COP 47,000 million this time.

The Board of Directors of Interconexión Eléctrica S.A. E.S.P. in meeting No. 711 of September 30, 2011, through Decision 84 of same date, has authorized

ISA’s Board of Directors, at meeting 713, unanimously approved March 30th 2012

ISA announces second third results 2011