Bulgaria was built at Slovak shipyard in Komárno, Czechoslovakia, in 1955 as Ukraina, and was renamed in February 2010 to Bulgaria after the Volga Bulgaria [REF].
At the time of the sinking, Bulgaria was owned by Kamskoye Rechnoye Parokhodstvo, which leased the ship to OOO Briz, which in turn subleased it to OOO Argorechtur, which operated it, according to media reports, on a bareboat charter.