Seoul shares fell Monday on technology losses as US tariff concerns weighed on investors. Shares of market bigwigs Samsung Electronics (KRX:005930) and SK Hynix (KRX:000660) dropped 2% each at market close.

The Korea Composite Stock Price Index, or Kospi, was down by 9.31 points, or 0.4%, to close at 2,645.27. The Kosdaq also fell 1.32 points, or 0.2%, to 773.33.

In economic news, South Korea's exports jumped 16% to $35.3 billion in the first 20 days of February from a year earlier, data from the Korea Customs Service indicated Friday.

The increase in outbound shipments was due to more working days of 15.5 during the period as compared to 13 a year ago.

Imports rose 7.7% to $34.5 billion, leading to an $800 million trade surplus.

In corporate news, LG Display (KRX:034220) started mass production of the 40-inch Pillar to Pillar (P2P) automotive display, reinforcing its push into software-defined vehicles (SDV), the South Korean display maker said Monday.

The ultra-large display, spanning the driver and passenger seats, integrates infotainment without screen transitions. The display, with switchable privacy mode and local dimming for efficiency, will be installed in Sony Honda Mobility's Afeela sedan.

Sony Honda Mobility is a Sony Group (TYO:6758) and Honda Motor (TYO:7267) electric vehicle joint venture.

Shares of LG Display fell nearly 1% at market close on Monday, Feb. 24, while those of Sony Group rose more than 2%. Shares of Honda Motor increased nearly 1%.