JOHANNESBURG--May 21, 2013--Written by Richard Finlayson, Senior International Editor for Industrial Info Resources (Sugar Land, Texas)--After winning the contract to build South Korea's $681 million Boryeong LNG terminal in South Chugcheong province, GS Engineering & Construct (GSEC) (KSX:006360) (Seoul) said that it will seek to expand its market for liquefied natural gas (LNG) terminals by pursuing opportunities overseas.