Rigrodsky & Long, P.A. announces that it is investigating potential claims against the board of directors of Mirant Corporation (“Mirant” or the “Company”) (NYSE: MIR) concerning possible breaches of fiduciary duty and other violations of law related to the Company’s entry into a definitive agreement to be acquired by RRI Energy, Inc. (“RRI Energy”) (NYSE: RRI) in an all-stock transaction valued at approximately $1.61 billion.

Are you affected?

• Do you own Mirant Corporation common stock?
• Did you purchase yoru shares before April 10, 2010?
• Do you feel the merger is unfair?
• Do you want to discuss your rights?

Rigrodsky & Long, P.A. announces that it is investigating potential claims against the board of directors of Mirant Corporation (“Mirant” or the “Company”) (NYSE: MIR) concerning possible breaches of fiduciary duty and other violations of law related to the Company’s entry into a definitive agreement to be acquired by RRI Energy, Inc. (“RRI Energy”) (NYSE: RRI) in an all-stock transaction valued at approximately $1.61 billion.

Under the proposed agreement, Mirant shareholders will receive a fixed ratio of 2.835 shares of RRI Energy common stock for each share of Mirant common stock they own or approximately $11.20 per share based on RRI Energy’s closing share price on April 9, 2010.  The investigation concerns whether Mirant’s board of directors failed to adequately shop the Company and obtain the best price possible for its shareholders.  As recent as March 11, 2010, Mirant’s stock price closed at $13.19 per share, Mirant’s stock traded as high as $17.02 on January 7, 2010, and at least one analyst has set a price target of $19.00 per share.

If you own the common stock of Mirant and purchased your shares before April 10, 2010, if you have information or would like to learn more about these claims, or if you wish to discuss these matters or have any questions concerning this announcement or your rights or interests with respect to these matters, please contact Brian D. Long, Esquire or Noah R. Wortman, Case Development Director, of Rigrodsky & Long, P.A., 919 North Market Street, Suite 980, Wilmington, Delaware, by telephone at (888) 969-4242, or by e-mail to info@rigrodskylong.com.

Rigrodsky & Long, P.A., with offices in Wilmington, Delaware and Garden City, New York, regularly litigates securities class, derivative and direct actions, shareholder rights litigation and corporate governance litigation, including claims for breach of fiduciary duty and proxy violations in the Delaware Court of Chancery and in state and federal courts throughout the United States.

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