Norwegian shipbuilder and designer Ulstein has delivered two Platform Supply Vessels (PSVs) of the Ulstein PX121 design to China Oilfield Services Limited (COSL). Ulstein said that the two PSVs – the Guo Hai Min Xing and Guo Hai Min Sheng – were built at Shanghai Waigaoqiao Shipbuilding (SWS). Two more vessels of the same design, also built at SWS, com- pleted their sea trials and will also be delivered to COSL.
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