Japanese shipbuilder Kitanihon Zosen has added to its orderbook with a new deal for tankers.

Clarksons said two vessels, hull numbers 661 and 663, were contracted last month.

The 12,500-dwt chemical and product tankers will be delivered in August and November 2019.

The owner is an unnamed Japanese company. No price was given.

The yard is building 15 tankers for MOL and Doun Kisen among others.