South Korean Won Eases on Escalating US Tariff Risks

The South Korean won weakened on Tuesday, drifting toward the 1,446 level against the US dollar as fresh concerns over Washington's trade stance weighed on sentiment. The retreat marked a slight pullback from the previous session and underscored how quickly the currency can react to shifts in American trade policy.

Traders grew more cautious after the United States signaled it may broaden its trade enforcement toolkit, with officials reportedly weighing a Section 301 investigation that could open the door to fresh tariffs. Such a probe would give Washington legal grounds to target specific trade practices it deems unfair, and markets are treating the possibility as a real threat to Seoul's export machine.

Automobiles and semiconductors, two pillars of the Korean economy, are seen as especially exposed if the investigation moves forward. Both sectors rely heavily on the American market, and any additional tariffs or scrutiny could squeeze margins for exporters already navigating a complex global trade environment. The uncertainty alone was enough to dent confidence in the won on Tuesday.

The currency move comes just ahead of a closely watched Bank of Korea policy meeting this week, where the central bank is widely expected to leave its benchmark rate unchanged at 2.50 percent for a sixth straight time. Economists say the decision reflects a desire to balance support for growth against the need to avoid stoking additional currency volatility.

Beyond the rate decision, analysts anticipate the central bank could revise up its 2026 growth and inflation projections, pointing to resilient chip exports and steadier domestic demand as supportive factors. Some economists now argue the next move in Korean monetary policy is more likely to be a hike than a cut, a view that has helped cap deeper losses in the won even as tariff worries persist.

For now, the won remains caught between two competing forces: external pressure from an increasingly unpredictable US trade agenda, and domestic fundamentals that continue to look comparatively solid. How that tension resolves is likely to shape currency trading in Seoul well beyond this week's central bank decision.