Sao Paulo, July 02, 2015 -- Moody's América Latina (Moody's) upgraded the issuer ratings of Concessão Metroviária do Rio de Janeiro S.A. (METRORIO) to Ba2 from Ba3 on the global scale, and to Aa2.br from A3.br on the Brazilian National Scale Rating ("NSR"). At the same time, Moody's changed the outlook to positive from stable.

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