US Tariffs on Copper from South Korea — 10% (2026)

Copper from South Korea represent an important segment of bilateral trade, with approximately $169B in total bilateral trade.

Following the Supreme Court's landmark February 20, 2026 decision striking down IEEPA tariffs, imports of copper from South Korea are now subject to a 10% tariff under Section 122 of the Trade Act of 1974, effective February 24, 2026.

This 10% rate has a built-in expiration: Section 122 limits presidential tariff authority to 150 days, meaning the tariff expires approximately July 24, 2026 without congressional renewal.

Copper (HTS Chapter 74) carry an average MFN duty rate of 2% in addition to the Section 122 tariff. No additional Section 232 or Section 301 surcharges apply to most products in this category from South Korea.

South Korea is party to the KORUS, which may provide preferential or duty-free access for qualifying copper. Importers should verify rules of origin requirements to take advantage of preferential rates.

Key products in HTS Chapter 74 imported from South Korea include Copper wire, Copper cathodes, Brass fittings, Copper pipes and tubes, Copper foil, and Bronze alloys.