Bulgarian construction company Valirion is seeking approval to acquire local peer Patna Signalizatsia - Bulgaria, the Commission for Protection of Competition said on Tuesday.Patna Signalizatsia - Bulgaria is majority owner of road construction companies Patstroy-97 and AB. Interested parties have until February 4 to submit their statements regarding the transaction, the competition authority said in a notice published on its website.Patna Signalizatsia - Bulgaria is fully owned by private individual Dimitar Petkov, according to commercial register data. Valirion is also fully owned by a private individual - Tsvetan Cholakov.(1 euro = 1.95583 levs)