KYIV, Aug 1 - Fitch Ratings has downgraded three Ukrainian corporate issuers, National Joint Stock Company Naftogaz Ukrainy, Private Joint Stock Company National Power Company Ukrenergo and Ferrexpo Plc.

"The downgrade reflects uncured payment default, announcement of a distressed debt exchange and deterioration of operational conditions, respectively. The rating action also follows Ukraine's sovereign rating downgrade on 22 July 2022," Fitch said.