The South Korean won strengthened to around 1,540 per dollar, rebounding sharply after nearing its weakest level since 2009, as weaker-than-expected US June jobs data weighed on the dollar.
The report reinforced expectations that the Federal Reserve could ease monetary policy in the coming months.
At the same time, the won drew additional support after South Korea's foreign exchange reserves unexpectedly increased to $427.4 billion in June despite market stabilization operations, signaling resilient external buffers and boosting confidence in the country's ability to manage currency volatility.
Investors also monitored the government's efforts to stabilize the foreign exchange market after authorities unveiled a KRW 14.9 trillion package of loans and guarantees for small and medium-sized enterprises affected by recent currency swings.