OI S.A. - MATERIAL FACT: Exercise of Over-Allotment Option Closing of Public Offering of Shares

 OI S.A. - MATERIAL FACT: Exercise of Over-Allotment Option Closing of Public
                              Offering of Shares

PR Newswire

RIO DE JANEIRO, May 5, 2014

RIO DE JANEIRO, May 5, 2014 /PRNewswire/ -- Oi S.A. ("Oi" or the "Company",
BOVESPA: OIBR3, OIBR4; NYSE: OIBR and OIBR.C), pursuant to article 157,
paragraph 4 of Law No. 6,404/76 (the "Brazilian Corporations Law") and
Instruction No. 358/02 of the Brazilian Securities and Exchange Commission
(Comissao de Valores Mobiliarios) ("CVM") notifies its shareholders and the
market in general that, in connection with its primary public offering of
common and preferred shares, including shares in the form of American
Depositary Shares, represented by American Depositary Receipts, conducted
simultaneously in Brazil (the "Brazilian Offering") and outside Brazil (the
"International Offering" and, together with the Brazilian Offering, the
"Public Offering"):

On May 5, 2014, Banco BTG Pactual S.A., in its role as Stabilizing Agent for
the Public Offering, partially exercised, pursuant to article 24 of CVM
Instruction No. 400, its option to place an additional 120,265,046 common
shares and 240,530,092 preferred shares issued by Oi (the "Option Shares"),
which represents an increase of 6.27% in the total number of shares
distributed by Oi in the Public Offering.

Taking into account the shares initially offered, as disclosed in the Material
Fact dated April 29, 2014, and the Option Shares, a total of 1,865,954,588
common shares and 3,696,207,346 preferred shares were distributed pursuant to
the Brazilian Offering and 396,589,982 common shares and 828,881,795 preferred
shares were distributed pursuant to the International Offering, in exchange
for which Oi received gross proceeds in the amount of R$13.96 billion,
composed of R$8.25 billion in cash and R$5.71 billion in assets contributed by
Portugal Telecom SGPS S.A. ("Portugal Telecom").

Given the success of the Public Offering in raising funds, the price behavior
of Oi's shares in recent trading sessions and the closing of the Public
Offering with the exercise by Banco BTG Pactual S.A. of its option to place
the Option Shares, Oi will publish on May 6, 2014, in accordance with article
29 of CVM Instruction No. 400, the closing announcement of the Public Offering
in a Brazilian newspaper of wide circulation used by Oi, which announcement
will contain the final information about the Public Offering.

OI S.A.
Bayard De Paoli Gontijo
Chief Financial Officer and Investor Relations Officer

SOURCE Oi S.A.

Contact: IR Contact: Patricia Frajhof, +55-11-3131-1315,
patricia.frajhof@oi.net.br
 
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