Events

Fourth Quarter

Dividends Payment - 27 November 2013

EEB - Investor report 3Q 13 release - 19 November 2013

Annexes
EEB - Investor report 3Q 13

EEB Conference Call 3Q 13 - 19 November 2013

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Annexes
Conference call Third Quarter 2013 results Q3 2013 Earnings Presentation EEB Transcripción Conferencia EEB 3T 13 Q3 2013 Earnings Presentation EEB Transcripción

TGI - Investor report 3Q 13 release - 08 November 2013

Annexes
TGI - Investor report 3Q 13

Cálidda - Investor report 3Q 13 release - 08 November 2013

Annexes
Cálidda - Investor report 3Q 13 release

TGI and Cálidda invite you to its Investor Conference Call: 3Q 13 Results and Key Developments, - 07 November 2013

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Annexes
Conference Call 3Q 13 TGI + Calidda vf Transcripción Cálidda - TGI Conference Call 3Q 13 TGI + Calidda vf Transcripción Cálidda - TGI

Conference Call: CTM 1H 13 Results and Key Developments 1st Semester 2013 - 11 October 2013

Annexes
Transcripción Conferencia CTM 1H 13 Presentación Transcripción CTM Resultados 1H13

Third Quarter

TGI - Investor report 2Q 13 release - 03 September 2013

Annexes
TGI - Investor report 2Q 13

Conference call Grupo de Energia de Bogotá 1H 13 - 9:00 a.m (CST) - 03 September 2013, Bogota, Colombia

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Annexes
Conferencia de Resultados 1S 2013 vf Transcripción CONFERENCE CALL 1S 13 Transcription First Semester 2013 Results and Key Developments Confence Call 1S 2013 vf en

EEB - Investor report 2Q 13 release - 16 August 2013

Annexes
EEB - Investor report 2Q 13

TGI - Conference call 2Q 13 results - 14 August 2013

Annexes
Transcripción TGI 1H 2013 14 08 13 Transcription TGI Results and Key Developments 1H 2013

Cálidda Conference Call 2Q 13 - 14 August 2013

Annexes
14 08 13 Investor Conference Call 1H 2013 vf Cálidda Transcripción Conferencia 1S 2013 14 08 13 Transcripción Cálidda vf

Second Quarter

Dividends Payment - 22 May 2013

Contugas Special report - Conference call Grupo Energía de Bogotá 1Q 13 - 21 May 2013

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Annexes
11 06 13 Transcrpcion - EEB 1Q13 ConferenceCall - Special Report Contugas EEB Conference Call 1T13 -Special Report ConTugas vf 11 06 13 Contugas Special report - Conference call Grupo Energía de Bogotá 1Q 13 transcription Contugas Special report - Conference call Grupo Energía de Bogotá 1Q 13 presentation

EEB - Investor report 1Q 13 release - 20 May 2013

Annexes
EEB - Investor report 1Q 13

TGI - Conference about 1Q 13 results - 14 May 2013

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Annexes
TGI Results 1Q 13 - May 14_2013 Transcripción TGI 1T 2013 Transcripcion Conference Call TGI 1Q13 TGI Results 1Q 13 - May 14_2013

TGI - Investor report 1Q 13 - 30 April 2013

Annexes
TGI - Investor report 1Q 13

Cálidda special report - Conference call Grupo Energía de Bogotá 2012 results - 09 April 2013

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Annexes
Conference Call Text 2012 Results and Significant developments Cálidda – Special Report 2012 Results and Significant developments Cálidda – Special Report Traducción EEB Conferencia de Resultados 2012 - Informe Especial Cálidda_Inglés vf EEB Conferencia de Resultados 2012 - Informe Especial Cálidda vf en

First Quarter

EEB - Investor report 4Q 12 - 22 March 2013

Annexes
EEB Informe Inversionistas 4T 12

TGI - Conference Call 2012 results - 14 March 2013

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Annexes
Corporate Presentation 14 03 13 vf Transcripción Conferencia TGI 2012 Transcripcion Corporate Presentation 14 03 13 Ingles vf Corporate Presentation 14 03 13 vf

TGI - Investor report 4Q 12 - 28 February 2013

Annexes
TGI - Informe Inversionistas 4T 12 TGI - Investor Report 4Q 12