Pampa Energia Updates Information Regarding Loma de la Lata's Expansion Project

Mar 31, 2011, 18:13 ET from Pampa Energia S.A.

BUENOS AIRES, Argentina, March 31, 2011 /PRNewswire/ -- Pampa Energia S.A. (NYSE: PAM; Buenos Aires Stock Exchange: PAMP) ("Pampa" or the "Company") informs that yesterday Central Termica Loma de la Lata S.A. ("CTLL") accepted an agreement offer by Isolux Corsan Argentina S.A. and Tecna Estudios y Proyectos de Ingenieria S.A. (the "UTE") by which the mechanisms to solve the technical problems that were previously informed to the CNV and BCBA on February 18 and March 2, 2011 are established, as well as the procedures to be followed for the start of commercial operation of CTLL's generation installed capacity expansion.

Additionally, Pampa informs that, under the terms and conditions of the referred offer, the UTE in its role of contractor grants CTLL an exceptional discount equivalent to the amounts related to the last payment milestone under the Contracts (Provisional Acceptance), including the adjustments provided under the Construction Contract, which is valued at US$18,000,000.

Pampa Energia is the largest integrated electricity company in Argentina that, through its subsidiaries, participates in the generation, transmission and distribution of electricity.

For further information, contact: Ricardo Torres - Chief Executive Officer Mariano Batistella – Strategic Planning and Investor Relations 3302 Ortiz de Ocampo, Building #4 (C1425DSR) Ciudad Autonoma de Buenos Aires, Argentina Phone: 5411 4809 9500 http://www.pampaenergia.com/ir investor@pampaenergia.com

SOURCE Pampa Energia S.A.



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