Greek shipowner Unisea Shipping is making a break into the suezmax tanker sector by signing up for a pair of 156,000-dwt newbuildings at a South Korean shipyard.

Industry sources said Unisea has commissioned Samsung Heavy Industries to build the crude carriers. It is not known whether the deal includes options for additional vessels.

An SHI executive declined to comment for this story, and Unisea did not immediately respond to a request for comment.