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US Tariffs on Articles of Stone, Plaster, Cement from South Korea — 10% (2026)

Tariff Rate Breakdown

10%

Section 122 Base

10%

Total Effective Rate

KORUS — qualifying goods may enter duty-free

Among US trading partners for articles of stone, plaster, cement, South Korea plays a notable role, with approximately $169B in total bilateral trade.

Following the Supreme Court's landmark February 20, 2026 decision striking down IEEPA tariffs, imports of articles of stone, plaster, cement 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.

Articles of Stone, Plaster, Cement (HTS Chapter 68) carry an average MFN duty rate of 3.5% 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 articles of stone, plaster, cement. Importers should verify rules of origin requirements to take advantage of preferential rates.

Key products in HTS Chapter 68 imported from South Korea include Granite countertops, Marble tiles, Cement blocks, Asbestos-free brake pads, Grinding stones, and Slate roofing.

Common Products in Chapter 68

Granite countertopsMarble tilesCement blocksAsbestos-free brake padsGrinding stonesSlate roofingPlasterboardMica sheets

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Frequently Asked Questions

What is the current tariff rate on articles of stone, plaster, cement from South Korea?

As of March 2026, articles of stone, plaster, cement from South Korea face a base tariff of 10% under Section 122. The effective rate can be up to 10%.

Will the tariff on articles of stone, plaster, cement from South Korea change?

The Section 122 tariff of 10% expires approximately July 24, 2026, unless Congress extends it. Monitor legislative developments for updates.

How did the Supreme Court ruling affect articles of stone, plaster, cement imports from South Korea?

The Supreme Court's February 20, 2026 ruling struck down IEEPA reciprocal tariffs as exceeding presidential authority. The president signed a replacement 10% tariff under Section 122 the same day, effective February 24. Qualifying goods under KORUS may still enter duty-free.