US and South Korea Reach Trade Deal Cutting Tariffs to 15 Percent Across Key Sectors Including Autos and Aerospace

Listeners, the big story in South Korea tariff news right now is a sweeping reset of U.S.–Korea trade under President Donald Trump, centering on a 15 percent benchmark tariff rate for many Korean goods entering the United States, and reciprocal moves from Seoul that aim to lock in stability after months of uncertainty in autos, aircraft, and lumber trade. According to the Office of the U.S. Trade Representative, the new U.S.–South Korea Strategic Trade and Investment Deal rewrites parts of the U.S. tariff schedule so that many Korean-origin products entering the U.S. now face a total duty of 15 percent if their previous rate was below that level, while goods already at 15 percent or higher keep their existing rate. This structure is being written directly into the Harmonized Tariff Schedule and applies retroactively to Korean autos, auto parts, timber, lumber, and certain aircraft and aircraft components that entered the U.S. from early to mid‑November, giving companies a chance to reclaim overpaid duties through adjustments and refunds. Trade law firms and customs advisors are already warning importers to review their November entries closely, because the difference between the earlier 25 percent duties and the new 15 percent level can mean major cash back for U.S. buyers of Korean goods if they file the right paperwork in time. The headline sector is autos. The Chosun Ilbo and other Korean outlets report that Washington has officially cut U.S. tariffs on South Korean automobiles and parts from 25 percent down to 15 percent, again retroactive to early November, in exchange for a long‑term South Korean strategic investment package of roughly 350 billion dollars in the United States. Korean automakers, according to the Hankyoreh and Asia-focused business media, describe this as a “sigh of relief” moment after months of emergency planning around the 25 percent rate, which had abruptly replaced the long‑standing zero‑tariff treatment under the Korea–U.S. Free Trade Agreement earlier this year. Industry groups in Seoul say the shift to 15 percent does not fully restore the old FTA advantage, but it does remove the threat of even higher U.S. tariffs that had been floated during the tense negotiation phase. Beyond cars, Asia News Network and several U.S. trade bulletins note that U.S. tariffs on key South Korean exports such as timber, lumber derivatives, and some civil aircraft and parts are now also being standardized at 15 percent, with a few sensitive aircraft products moving to tariff‑free status under the revised deal. U.S. customs guidance emphasizes that if a Korean product already faces at least a 15 percent “most‑favored‑nation” rate or qualifies for lower FTA treatment, no extra add‑on duty will be charged, which matters for complex manufactured goods that mix Korean inputs with materials like steel, aluminum, and copper. At the same time, Seoul has adjusted its own reciprocal tariff regime, capping many retaliatory duties on U.S. p This content was created in partnership and with the help of Artificial Intelligence AI.