Seoul shares trade higher on tech gains GMT 03:32 2014 Tuesday, 11 February Last Updated: 05:17:37 GMT Seoul - Yonhap South Korea stocks traded slightly higher late Tuesday morning as foreign investors scooped up tech shares. The benchmark Korea Composite Stock Price Index (KOSPI) rose 0.26 percent, or 5.02 points, to 1928.32 as of 11:20 a.m.