NEW YORK, October 9, 2009 — BNY Mellon, the global leader in asset management and securities servicing, has been selected by Pampa Energia S.A. (Pampa Energia) as the depositary bank for its listed American depositary receipt (ADR) program. Each Pampa Energia ADR represents 25 common shares and trades on the New York Stock Exchange (NYSE) under the ticker symbol "PAM," while the common shares trade on the Buenos Aires Stock Exchange under the symbol "PAMP."

Pampa Energia is a fully integrated electricity company in Argentina. Through its subsidiaries, the company is engaged in the generation, transmission and distribution of electricity in Argentina.

"This is an exciting time for our company as we list on the New York Stock Exchange," said Marcelo Mindlin, chairman of Pampa Energia. "Gaining exposure for our ADRs in the U.S. market is a key goal for us, and we believe BNY Mellon is well positioned to help us achieve it."

"As they list their ADRs on the NYSE, we look forward to working with Pampa Energia on specialized promotional and outreach programs designed to heighten the company's visibility with the U.S. investment community," said Michael Cole-Fontayn, chief executive officer of BNY Mellon's Depositary Receipts business.

BNY Mellon acts as depositary for more than 2,100 American and global depositary receipt programs, acting in partnership with leading companies from 67 countries. With an unrivalled commitment to helping securities issuers succeed in the world's rapidly evolving financial markets, the Company delivers the industry's most comprehensive suite of integrated depositary receipt, corporate trust and stock transfer services. Additional information is available at www.bnymellon.com/dr.

BNY Mellon is the corporate brand of The Bank of New York Mellon Corporation (NYSE: BK). BNY Mellon is a global financial services company focused on helping clients manage and service their financial assets, operating in 34 countries and serving more than 100 markets. The company is a leading provider of financial services for institutions, corporations and high-net-worth individuals, providing superior asset management and wealth management, asset servicing, issuer services, clearing services and treasury services through a worldwide client-focused team. It has $20.7 trillion in assets under custody and administration, $926 billion in assets under management, services $11.8 trillion in outstanding debt, and processes global payments averaging $1.8 trillion per day. Additional information is available at bnymellon.com.

This release is for informational purposes only. BNY Mellon provides no advice nor recommendation or endorsement with respect to any company or securities. Nothing herein shall be deemed to constitute an offer to sell or a solicitation of an offer to buy securities. Depositary Receipts: Not FDIC, State or Federal Agency Insured; May Lose Value; No Bank, State or Federal Agency Guarantee.