Notice to the Market - Confirmation of CEMAR´s Rating

Equatorial Energia S.A.
Public-held Company
CNPJ/MF nº 03.220.438/0001-73
Cia. Energética do Maranhão – CEMAR
Public-held Company
CNPJ/MF nº 06.272.793/0001-84
NOTICE TO THE MARKET
Equatorial Energia S.A. and Cia. Energética do Maranhão – CEMAR announce that, yesterday, June 14,
2011, Fitch Ratings confirmed CEMAR’s National Long Term Rating AA-(bra), with stable outlook.
Simultaneously, the agency ratified the National Long Term Rating A+(bra) of CEMAR’s 3rd Debenture
Offering, amounting to BRL267.3 million and due in 2013.
In its Press Release, Fitch affirmed that the Company’s corporate rating reflects its continuous solid
operational performance and the maintenance of its robust financial profile.
To view the full report, access Fitch’s website, at www.fitchratings.com.
Rio de Janeiro, June 15, 2011
Eduardo Haiama
Investor Relations Officer
Cia. Energética do Maranhão – CEMAR and Equatorial Energia S.A.