South Korea's Daehan Shipbuilding has bagged its first ever dual-fuel newbuildings contract with a deal worth $450m.

Tsakos Energy Navigation (TEN) has booked orders for up to six aframaxes — four firm 115,000-dwt units and two options — the shipbuilder confirmed.

A shipyard executive said TEN has the option to upgrade the optional newbuildings to LR2 tankers.

Daehan did not disclose the price of the newbuildings, but shipbuilding players believe TEN is paying about $75m per ship.