US Imposes Highest Ever Tariffs on South Korea Hitting Automotive Semiconductor and Steel Sectors Hard

Welcome to South Korea Tariff News and Tracker. Today’s focus: the latest headline developments in U.S.-South Korea trade, tariff rates, and the reverberations through South Korean industry as the Trump administration’s new measures take hold. South Korea and the United States, once champion partners of free trade under their 2007 FTA, are now navigating what Source of Asia calls a “major shake-up.” On April 9th, President Trump’s administration imposed an unprecedented 25 percent tariff on South Korean exports. This new rate stands out—it’s now the highest the U.S. has ever levied on a fellow FTA partner, surpassing even the 24 percent set for Japan and 20 percent for the European Union. The impact of this sudden spike is rippling far beyond trade statistics. Yonhap News Agency reports that Trump initially announced a 26 percent “reciprocal” tariff for South Korea, but after late-night outreach from South Korean officials, the rate was dialed back to 25 percent. Seoul’s diplomats argued that even a one percent difference would result in billions of dollars in extra cost given Korea’s substantial export volume to the United States. The tariff rollout is two-pronged. On April 5th, all imports to the U.S. became subject to a new 10 percent baseline tariff, according to an official White House fact sheet. Then, starting April 9th, certain countries—including South Korea—faced higher, country-specific tariffs as part of the Trump administration’s push for what it calls “reciprocal” treatment. The White House says these measures will stay until the administration determines America’s trade deficit and nonreciprocal treatment have been addressed. Which industries in South Korea feel the burn most? Source of Asia singles out the automotive, semiconductor, steel, and aluminum sectors as especially vulnerable. Take the car industry: last year, $34.7 billion in Korean vehicles crossed the Pacific, nearly half of all Korea’s automotive exports. Now, companies like Hyundai and Kia face tariffs as high as 200 percent on certain vehicle imports, compounding uncertainty and financial risk. The Trump administration’s tariff on auto parts also drives up costs for Korean manufacturing in the U.S.—a serious blow, given recent investments like Hyundai’s $7.6 billion EV plant in Georgia. The trade shockwaves are visible in the economy at large. The Korea Development Institute recently cut its 2025 growth outlook to below one percent, with CSIS noting that South Korea was among the first nations to feel the negative economic effects of the new U.S. trade policy. All this tariff drama unfolds as South Korea prepares for a pivotal presidential election on June 3rd, with trade policy looming over an economy already challenged by an aging population and stagnant growth. Listeners, these new tariffs could redefine U.S.-Korea economic dynamics and industry competitiveness for years to come. That’s it for this edition of South Korea Tariff News and Tracker. Thank you f This content was created in partnership and with the help of Artificial Intelligence AI.