RIO DE JANEIRO, March 31, 2014 /PRNewswire/ -- Oi S.A. ("Oi") – BM&FBOVESPA: OIBR3 and OIBR4 / NYSE: OIBR – in accordance with the Material Fact dated December 3, 2013, hereby discloses to its shareholders and the market in general that on March 31, 2014, it...
Source : http://www.prnewswire.com/news-releases/oi-sa---no...
Source : http://www.prnewswire.com/news-releases/oi-sa---no...