China Section 301 Modifications to the Actions Resulting from the 2024 Four-Year Review (100% additional duty)

A Section 301 measure is a U.S. trade action addressing certain practices, policies, or conduct of a foreign government. This measure concerns modifications arising from the four-year review of actions involving China. The title’s “additional duty” means a charge imposed on top of any ordinary customs duty and other applicable import charges; the exact scope depends on the official measure and tariff provisions.

It typically affects products that are classified under specified Harmonized Tariff Schedule of the United States (HTSUS) subheadings and are products of China. The importer of record is generally responsible for entry accuracy and payment, so the measure can affect landed cost, product pricing, sourcing decisions, and customs compliance. Whether it applies cannot be determined from a product description alone: classification, country of origin, exclusions, and the entry date must be checked against official sources.

What to check

• Confirm the product’s correct HTSUS classification using its material, function, construction, and other relevant facts; do not rely only on a supplier’s code.
• Verify the product’s country of origin under U.S. customs rules. Shipping from another country does not necessarily change Chinese origin.
• Compare the classification and origin with the official Section 301 tariff provisions, product lists, exclusions, and any stated entry-date or filing requirements.
• Check whether a valid exclusion, modification, or other exception applies, and retain the supporting documentation.
• Ask a customs broker or trade attorney to review uncertain classifications, origin analyses, exclusions, or treatment of mixed-product shipments.