China Section 301 Modifications to the Actions Resulting from the 2024 Four-Year Review (50% additional duty)

This is a U.S. trade measure under Section 301, a law that allows the United States to respond to certain unfair or discriminatory trade practices. The measure modifies earlier Section 301 actions involving products of China following a four-year review. The displayed duty description indicates an additional duty may apply, separate from the product’s ordinary customs duty.

It typically affects U.S. imports of covered products that are classified under specified Harmonized Tariff Schedule of the United States (HTSUS) subheadings and meet the measure’s country-of-origin rules. The importer of record is generally responsible for declaring the correct classification, origin, and applicable additional tariff at entry. It matters because the measure can increase landed cost, affect pricing and supply-chain decisions, and require careful entry documentation.

What to check

• Confirm the product’s HTSUS classification using its material, function, and condition—not merely its commercial name.
• Check the official Section 301 product list and the measure’s legal notes to see whether the exact HTSUS subheading and any stated product description are covered.
• Verify country of origin under U.S. origin rules; shipping through another country does not necessarily change Chinese origin.
• Review whether an exclusion, exemption, quota treatment, or other listed exception applies, and confirm its scope and validity in official sources.
• Have a customs broker or trade specialist review uncertain classification, origin, and additional-duty treatment before entry.