EEB Appeared in Dow Jones Sustainability Index

PRESS RELEASE

EEB appeared in Dow Jones Sustainability Index in the Emerging Markets category

4 March 2013. Empresa de Energía de Bogotá, EEB, was notified by RobecoSAM - Sustainability Investing, on its official entry as a selected company to be part of Dow Jones Sustainability Index in the Emerging Markets category. EEB has been invited to participate as a model company for international sustainability index since 2010.

The aforementioned certification further evidences EEB’s commitment with sustainable management across the entire corporation, adopting and reporting best practices within the framework of corporate governance, human rights, HR management, sustainable supply chain, ethical and anti-corruption practices; and at the same time engaging with stakeholders on a comprehensive management of risk, biodiversity and eco-efficiency programs, among others, as pointed out by Sam Sustainability Index.

As part of its operations and strategies, EEB establishes a series of sustainability measures aimed at identifying, managing, monitoring and reporting significant and relevant aspects of its Global Responsibility Model. This Model seeks to strengthen its relations with stakeholders and make the organization a sustainable corporation under international standards in subjects such as social, economics and environment, thus fulfilling the guidelines set in its Development Plan, “Bogotá Humana”.

According to Sam, becoming part of the emerging market index demands an even greater commitment in terms of identifying, adhering to, monitoring and reporting best practices as part of its sustainable management model and is the result of the efforts made by all areas of the corporation.

About Grupo Energía de Bogotá Grupo Energía de Bogotá is a leading corporation in the Colombian energy sector. Through EEB it transports electricity to a market enjoying one of the largest demands in the country and greatest in size. In addition, it controls one of major natural gas carriers in the country, TGI S.A. In Perú, its company CONTUGAS has a 30 year concession for the transportation and distribution of natural gas in the Ica Department, while CALIDDA is in charge of distributing natural gas in Lima and Callao. In that same country, ISA participates in REP S.A. and TRANSMANTARO S.A., which operate 63% of the electricity transmission system in the country. In 2010, it incorporated TRECSA - Transportadora de Centroamérica S.A.- that will build the most important energy infrastructure project in Guatemala and will render electricity transmission services as of 2013. Furthermore, it holds a portfolio of significant investments in large companies in the energy sector, amongst which the following stand out CODENSA S.A., EMGESA S.A., GAS NATURAL S.A., Empresa de Energía de Cundinamarca - EEC and Electrificadora del Meta, EMSA and in a lesser scale ISA and ISAGEN.

More information Elízabeth Melo External Affairs Director Tel. 57 2 3268000; Mobile. 57 3 3203337187 [email protected]

Cra. 9 Nº. 73-44 – PBX: 326 8000 – Fax: 326 8010 Bogotá – Colombia