The United States has imposed a 12.5% [1] forced-labor tariff on most South Korean exports as part of a broader trade enforcement effort.

This move threatens the stability of South Korean trade relations with its primary ally. Because the U.S. is expected to add a further tariff targeting over-production, Seoul is fighting to limit the total financial burden on its industries.

The U.S. government is utilizing Section 301 of the Trade Act to address concerns regarding forced labor and perceived industrial over-production [1], [2]. Before the implementation of the forced-labor measure, the previous global tariff under Section 301 stood at 10% [1].

South Korea's Ministry of Trade, Industry and Energy is now advocating for a combined tariff ceiling of 15% [2]. Officials said this request is based on existing trade precedents, noting that the European Union and Taiwan have tariff ceilings of 10% [3] for Korean goods.

The ministry said the current situation has allowed some tariff uncertainty to be mitigated. However, the potential for an additional over-production tariff remains a critical point of contention in ongoing negotiations.

South Korean officials said the 15% cap is necessary to ensure that Korean products remain competitive in the U.S. market. Without a predictable limit, exporters face volatile costs that could disrupt supply chains across multiple sectors.

The U.S. has imposed a 12.5% forced-labor tariff on most South Korean exports.

The shift toward Section 301 tariffs based on labor practices and production volume signals a move away from traditional trade disputes toward values-based and capacity-based economic warfare. By pushing for a 15% cap, South Korea is attempting to establish a predictable cost of business in the U.S. to prevent a cascading loss of market share to regional competitors.