OIBR3 Oi

RIO DE JANEIRO, Aug. 16, 2013 /PRNewswire/ -- Oi S.A. (BOVESPA: OIBR3, OIBR4; NYSE: OIBR.C, OIBR) (the "Company") discloses to its shareholders and the market in general that Fitch announced today its review of the credit rating attributed to the Company, downgrading the long-term rating from BBB to BBB-. The outlook remains negative.

Bayard De Paoli Gontijo
Investor Relations Officer
Oi S.A.

SOURCE Oi S.A.