Bulgarian state network operator, Bulgartransgaz yesterday said that a tender for building the natural gas pipeline across Bulgaria was awarded to a consortium led by Saudi’s Arkad Engineering. The consortium, which includes the joint venture between Arkad and ABB, offered to construct the 474-km pipeline by the end of 2020 for $1.24 billion. The offer also included another option of completing the pipeline in 8 months for 1.29 billion euros.