South Korea's main stock market index managed to secure the one-thousand-900 threshold on Thursday.

The benchmark Korea Composite Stock Price Index(KOSPI) fell to as low as the one-thousand-880 level during the day on foreign investors' selling. It managed to climb before the day's close, losing 16-point-27 points or zero-point-85 percent from the previous day to finish at one-thousand-900-point-01. 

The tech-heavy KOSDAQ also fell to close at 683-point-19, down two-point-84 points or zero-point-41 percent.  

On the foreign exchange market, the value of the local currency weakened nine-point-four won against the U.S. dollar to close at one-thousand-213-point-four won. It marked another five-and-a-half-year low against the greenback.