US Commerce chief confirms South Korea’s 15% tariff rate retroactive to November 1

US Commerce Secretary Howard Lutnick on Monday confirmed that the general tariff rate on imports from South Korea, including on autos, would drop to 15% retroactive to November 1 because South Korea has introduced legislation in parliament to implement the country’s strategic US investment commitments.

In a statement posted on X, Lutnick said that the move unlocks the “full benefit” of South Korea’s trade deal with President Donald Trump.

“In response, the US will lower certain tariffs under the deal — including auto tariffs — to 15%, effective November 1. We are also removing tariffs on airplane parts and will ‘un-stack’ Korea’s reciprocal rate to match Japan and the EU.”

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The bilateral trade deal also caps any future national security tariffs on semiconductors and pharmaceuticals at 15%, putting South Korea on an equal footing with key Asian rivals Japan and Taiwan.

The US previously levied a 25% tariff on imports from South Korea, including national security-related autos duties invoked under Section 232 of the Trade Expansion Act of 1962 and “reciprocal” tariffs invoked under the International Emergency Economic Powers Act of 1977.

The U.S. Supreme Court could overturn the IEEPA-based tariffs in the coming weeks after casting doubt on their legal basis of during oral arguments in early November.

The South Korean ruling party’s legislation aims to make good on Seoul’s agreement to invest $350 billion into strategic industries in the U.S., including shipbuilding.

“Korea’s commitment to American investment strengthens our economic partnership and domestic jobs and industry,” Lutnick said, adding that he was “grateful for the deep trust between our two nations.”