As Saudi Aramco prepares for test-runs at its newbuild 400,000 b/d Jazan refinery on the Red Sea coast near Yemen it is becoming increasingly clear than many secondary units will be offline at first. After last week issuing tenders for the sale of off spec fuel oil and vacuum gas oil (VGO) for February loading (MEES, 15 January), Aramco has since issued a tender for High Sulfur diesel. This is a clear indication that the refinery’s gasoil desulfurization hydrotreater will be brought on at a later date.