The benchmark Korea Composite Stock Price Index dropped 24-point-38 points, or zero-point-59 percent, on Thursday to close at four-thousand-110-point-62.

The tech-heavy KOSDAQ edged down zero-point-36 points, or zero-point-04 percent, to close at 934-point-64.

The South Korean won weakened against the U.S. dollar by two-point-six won, trading at one-thousand-473 won as of 3:30 p.m.