Two Cummins QSK60-powered 4400 HP Z-drive tugs are nearly complete at the South China Shipyard in Guangdong province China. They are destined for harbor operation, standby (towing, pushing, berthing, anti-pollution, salvage, pilotage & fire-fighting) to Offshore Oil drilling platform & FPSO/Large LPG CARRIER, ocean-going towage, etc.