RIO DE JANEIRO--(BUSINESS WIRE)--Fitch Ratings has affirmed Suzano Papel e Celulose S.A.'s (Suzano) foreign currency and local currency Issuer Default Ratings (IDR) at 'BB'. At the same time, Fitch has upgraded its national scale long-term rating to 'AA-(bra)' from 'A+(bra)'. The Rating Outlook for the corporate ratings is revised to Positive from Stable. A full list of rating actions follows at the end of this release. The upgrade of the company's national scale rating was due to the marked im