The Singaporean shipowner will build a pair of Ulsteindesign PX121 units at its own yard in Batam, Indonesia, it said on Thursday.
The two units to be built at PT Britoil Offshore Indonesiawill each come with the distinctive Ulstein X-Bow design.
No price was given for each unit.
They will each have one extra accommodation deck and will beable to accommodate 50 people.
