Drydocks World has won a $100.4m contract to build four platform supply vessels (PSV) for Tidewater Marine, a wholly-owned subsidiary of Tidewater. Under the terms of the contract, Tidewater Marine has the option to place orders for four more PSV units to be built by DDW-Nanindah on the successful completion of the first four vessels. The vessels are to be built at DDW- Nanindah shipyard at Batam in Indonesia, with the first unit set for delivery in 18 months time, followed by the rest every two months.