SOFIA (Bulgaria), August 15 (SeeNews) – A consortium led by Bulgarian construction company Trace Group Hold [BUL:T57] has won a 10.4 million levs ($6.2 million/5.3 million euro) contract for the overhaul of a 12.9-kilometre long railway section between the towns of Stara Zagora and Zmeyovo, Trace Group Hold said.