South Korea has formally challenged the U.S. Trade Representative’s proposal to impose tariffs on imports linked to forced labor, labeling the measure "unwarranted" and calling for a revision.

The diplomatic pushback marks a significant escalation in trade tensions between Washington and Seoul, two key allies in the Indo-Pacific region.

The proposed tariffs, which could reach 12.5%, target imports from 60 economies that the U.S. argues have failed to adequately ban goods produced using forced labor.

South Korea’s objection highlights the growing friction between U.S. trade enforcement priorities and the economic interests of its trading partners.

The move comes after a South Korean trade association previously urged USTR Jamieson Greer to defer implementation of the tariffs, signaling deep concern within the business community.

For investors, the development underscores the expanding scope of U.S. trade policy beyond traditional tariff disputes.