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

This is a U.S. Section 301 trade measure involving products of China. Section 301 is a trade-law authority used to impose additional import duties or other restrictions in response to a foreign country’s policies or practices. A measure described as a modification to the actions resulting from a four-year review means the government has revised an existing Section 301 action after reviewing it; the official measure determines which tariff provisions and products are covered.

It typically affects U.S. importers bringing covered Chinese-origin merchandise into the United States, as well as businesses that price, source, or sell those goods. The additional duty is separate from the ordinary “column 1” customs duty, and possibly from other trade remedies such as antidumping or countervailing duties. An importer must therefore determine the product’s classification, country of origin, and whether the applicable tariff provision is listed in the measure. Customs-broker or trade-counsel review may be appropriate when coverage is unclear.

What to check

• Confirm the product’s tariff classification, usually its Harmonized Tariff Schedule of the United States (HTSUS) subheading, using the product’s material, function, and construction—not its marketing name alone.
• Verify country of origin under U.S. origin rules; the country where the goods were manufactured or substantially transformed may matter, not merely the shipping country.
• Check the official Section 301 product list and any listed exclusions, notes, amendments, or effective-date instructions for the applicable HTSUS provision.
• Separate this measure from ordinary customs duty and other possible measures, including antidumping, countervailing, safeguard, or quota requirements.
• Ask a customs broker or qualified trade professional to review ambiguous classification, origin, exclusions, or entry-filing treatment before importation.