Mitsubishi Heavy Industries, Ltd. (MHI) gets additional order to build 2 seismic vessels for Norway's Petroleum Geo-Services ASA (PGS). The order for the two vessels was placed upon exercise by PGS of the option right that was provided when two same type vessels were ordered to MHI in April 2011. The two newly ordered vessels are scheduled for delivery in the first and second half, respectively, of 2015. With this latest order, MHI will build a total of four vessels to support PGS's deep water energy prospecting services.