US-listed Navios Maritime Partners has added to its tanker orderbook with an agreement for two more MR2 product carriers against a background of higher prices.

The Angeliki Frangou-led company revealed in a securities filing that a deal was struck in August to acquire two more vessels from an unrelated third party that will be built in Japan.

The yard has not been named, but the Greek shipowner said the carriers will join the fleet on bareboat charters for 10 years.