Oi : Notice to the Market - Information related to the suspension of payments proceedings of Oi Brasil Holdings Coöperatief UA and Portugal Telecom International Finance B.V.

Oi S.A. - In Judicial Reorganization

Corporate Taxpayers' Registry (CNPJ/MF) No. 76.535.764/0001-43

Board of Trade (NIRE) No. 33.300.29520-8

Publicly-Held Company

NOTICE TO THE MARKET

Oi S.A. - In Judicial Reorganization ('Company'), in continuance of and in addition to the Notice to the Market disclosed by the Company on February 10, 2017, hereby informs its shareholders and the market that, on this date, it became aware that the Court of Appeal of Amsterdam, The Netherlands, has ordered that a hearing in relation to the appeals filed by certain creditors against the judgements rendered by the District Court of Amsterdam on February 2, 2017, whereby the requests for conversion of the suspension of payments proceedings into Dutch bankruptcy proceedings for each of Oi Brasil Holdings Cooperatief U.A. - Em Recuperação Judicial e Portugal Telecom International Finance B.V. - Em Recuperação Judicial were denied, will be held on March 29, 2017.

The Company will keep its shareholders and the market informed of the development of the subject matter of this Notice to the Market, whenever appropriate.

Rio de Janeiro, February 20, 2017.

Oi S.A. - In Judicial Reorganization

Ricardo Malavazi Martins

Chief Financial Officer and Investor Relations Officer

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(¹) This translation is still subject to the auditors review