The deal with a European shipping company calls on STX Shipbuilding to deliver the very large crude carriers by November 2011, the company said in a regulatory filing.
With the deal, STX Shipbuilding has won $1.9 billion worth of deals so far this year, up 36 percent from a year earlier.
Shipyards in Korea, the world’s top shipbuilding nation, have won record orders in recent years as demand has surged for vessels to transport raw materials to China and goods to the rest of the world.
Shares of STX Shipbuilding closed down 0.47 percent at 333,850 won on the Seoul bourse.
In a separate filing, the shipyard said it is targeting $11 billion worth of shipbuilding orders this year, 3 trillion won in sales and 200 billion won in operating income.
In 2009, STX Shipbuilding expects 4.2 trillion won in sales and 340 billion won in operating income.