On November 24, 2017, Oi S.A. announced that on this date Mr. Marco Norci Schroeder presented his resignation as Chief Executive Officer of the company. The Board of Executive Officers, at a meeting held on this date, appointed Mr. Eurico de Jesus Teles Neto to act as interim Chief Executive Officer, concurrently with his present position as Chief Legal Officer, until such time as the Board of Directors deliberates on this matter.