...+ On June 20, 2016, Brazil-based telecommunications company Oi S.A. announced that it has filed a request for judicial reorganization. + We're lowering our corporate credit and issue-level ratings on Oi to 'D' from '###-' on global scale and from 'brCCC-' on national scale. SAO PAULO (S&P Global Ratings) June 21, 2016--S&P Global Ratings lowered its corporate credit and issue-level global scale ratings on Oi S.A. (Oi) to 'D' from '###-' and its national scale ratings to 'D' from 'brCCC-'. The recovery ratings on the company's rated debt remain unchanged at '4', indicating our expectation for average recovery (30%-50%; in the lower half of the range) following a default. The downgrade follows Oi's announcement that it had filed a request for judicial reorganization in an effort to restructure its debt obligations. Once the judicial reorganization process is finalized, we will evaluate the company under its updated capital structure and strategic plan. RELATED CRITERIA AND RESEARCH Related...