Exhibit 1 Oi S.A. - In Judicial Reorganization Corporate Taxpayers' Registry (CNPJ/MF) No. 76.535.764/0001-43 Board of Trade (NIRE) No. 33.30029520-8 Publicly Held Company NOTICE TO THE MARKET Oi S.A. - In Judicial Reorganization ("Oi" or the "Company") , pursuant to Article 12 of CVM Instruction No. 358/02, hereby informs that on this date received a mail from Bratel B.V. and Bratel S. R.L, including the following information: "To Oi S.A. - Under Judicial Reorganization Att.: RICARDO MALAVAZI MARTINS - Investor Relations Officer Rua Humberto de Campos, 425, 8 andar, Leblon Rio de Janeiro, RJ Re.: Disclosure of Material Equity Interest Dear Sir Madam, 1.