Piraeus-based Sun Enterprises is close to doubling its first aframax newbuilding order in a decade by inking two more sisterships at Daehan Shipbuilding in South Korea.

Greek brokers said Sun Enterprises has declared two options it held at Daehan, doubling the number of ships the South Korean yard will build for the Greek owner.

The yard said no contract has been signed and managers at the Greek company did not respond to a request for comment.