An unnamed European owner has declared options for a pair ofplatform supply vessels (PSV) and signed on for two more of the PX121 designs,the Chinese shipbuilder announced today.

Its Guangdong Shipyard will deliver the two firm vessels inthe first and second quarters of 2016 while the two optional vessels must beexercised within the next six months.

Cosco did not reveal the name of the owner behind the ordersbut they are consistent with Netherlands-based Vroon which has six of thevessels under construction at the yard, according to its website and shippingdatabases

Vroon ordered its first pair of the 4,200-dwt vessels inJanuary 2013 at a total cost of $54m.

The