HD Korea Shipbuilding and Offshore Engineering Co., a major South Korean shipyard, said Wednesday it has secured a combined 881.4 billion won (US$669 million) in orders to build five vessels.HD Hyundai Samho Heavy Industries Co., one of HD Korea Shipbuilding's three shipbuilding units, will construct two ultra-large ethane carriers, scheduled to be delivered to an undisclosed shipping company in Asia by September 2027, the shipbuilder said in a filing.Two liquefied petroleum gas carriers will be built at a dockyard of HD Hyundai Mipo Co. and delivered to an Oceanian shipper by July 2027.HD Hyundai Mipo will also construct a liquefied natural gas bunkering vessel for delivery to an Asian shipper by May 2027.So far this year, HD Korea Shipbuilding has obtained orders to construct 165 vessels worth $18.6 billion, exceeding its yearly target of $13.5 billion.HD Korea Shipbuilding, a subholding company of shipbuilding, oil refining and machinery conglomerate HD Hyundai, has three domestic units under its wing -- HD Hyundai Heavy Industries Co., HD Hyundai Mipo and HD Hyundai Samho Heavy Industries.Source: Yonhap News Agency