Jan 21, 2018 · Construction work is set to begin in earnest on Oman's first bitumen refinery - an ambitious venture that will, for the first time, help offset imports of bitumen for road building and other applications. The greenfield project is backed by Sohar Asphalt LLC, an Oman-registered company owned 90 per cent by prominent Bahraini businessman Shaikh Mohamed bin Salman bin Abdulla al Khalifa