Abu Dhabi: Abu Dhabi Gas Industries Limited (GASCO) has awarded the Engineering, Procurement and Construction (EPC) contract for approximately $450 million (Dh1.65 billion) to lay a 52-inch sour service gas pipeline (Habshan-Maqta-Taweelah Gas Pipelines Project) in Abu Dhabi to UAE-based engineering and construction conglomerate, Dodsal. The company has announce that it has completed 70 per cent of detailed engineering works, manufacturing and shipment of first lot 52-inch line pipes.