President Trump has promised to retaliate against South Korea with 25% tariffs on major exports, accusing Seoul’s legislature of refusing to enact a trade agreement both countries negotiated in 2024. The announcement encompasses automobiles, lumber, and pharmaceuticals among targeted product categories.
The trade and security agreement was finalized in October 2024 after direct negotiations between Trump and South Korean President Lee Jae Myung, including provisions for reduced American tariffs in exchange for Korean investment commitments. However, disputes about the legal status and ratification requirements have prevented full implementation.
Korean officials expressed frustration at receiving no diplomatic advance notice of the tariff threat, learning about it through Trump’s social media announcements. The government is mobilizing responses on multiple fronts, including emergency consultations in Washington and expedited legislative action.
South Korea’s export-dependent economy is particularly vulnerable to tariff changes, with the automotive sector representing the greatest exposure at 27% of total exports to America. Market reaction was immediate and significant, with Korean carmaker stocks experiencing sharp declines before partial recovery.
Trump’s willingness to threaten major tariffs against a key ally demonstrates his continued emphasis on trade policy as a diplomatic weapon. Economists warn that even threats that aren’t ultimately implemented create business uncertainty and market volatility with real economic consequences.