Listing on the Buenos Aires Stock Exchange

20 May 2010

Andes Energia plc

("Andes" or the "Company")

Admission to trading on the Buenos Aires Stock Exchange

Further to the announcement on 6 January 2010, the Board of Andes (AIM: AEN), the Latin American energy group, is pleased to announce the admission to trading of the Company's ordinary shares on the Buenos Aires Stock Exchange ("BASE").

Andes is the first AIM company to have its shares admitted to trading on both AIM and the BASE. The trading symbol on both exchanges will be AEN.

An English translation of the Comisión Nacional de Valores ("CNV") prospectus will made be available, in accordance with CNV regulations, on the Company's website at www.andesenergiaplc.com.ar in due course. Announcements made by Andes to the BASE can be found at www.cnv.gov.ar

Luis Alvarez Poli, Chief Executive Officer of Andes, commented, "We are excited about the commencement of trading of our stock on the Buenos Aires Stock Exchange in Argentina. This is an important step in providing a broader base of investors with the opportunity to actively invest in Andes and we expect the admission to create additional demand for and liquidity in our shares."

For further information please contact:

Note to Editors:

About Andes

Andes is a Latin American energy group, with electricity distribution, hydro-electric power and oil and gas interests in Argentina. The Company's focus is on the Argentinean energy sector, which it believes offers premium assets at undervalued prices.