Overnight, U.S. stocks ended mixed, with the Dow Jones Industrial Average down 0.03 percent to 41,989.96 and the tech-heavy Nasdaq composite up 0.87 percent to 17,449.89.
U.S. President Donald Trump is set to launch so-called reciprocal tariffs on April 2, which will affect all U.S. trading partners.
In Seoul, large-cap stocks were mixed.
Samsung Electronics fell 0.51 percent, and Hyundai Motor declined 1.11 percent.
Posco Holdings dropped 1.43 percent, and HD Hyundai Heavy Industries shed 0.52 percent.
Among gainers, chip giant SK hynix rose 0.72 percent, and leading cosmetics firm Amorepacific was up 1.04 percent.
The local currency was trading at 1,472.65 won against the U.S. dollar at 9:15 a.m., up 0.75 won from the previous session.