Polychloroprene Rubber — Japan — A-588-046

“Polychloroprene Rubber” generally refers to a synthetic rubber material also known as chloroprene rubber or neoprene. A trade measure labeled AD/CVD may involve antidumping (AD) duties, which address imports sold at less than normal value, countervailing (CVD) duties, which address certain foreign government subsidies, or both. The measure applies according to the official product scope, not simply the product’s marketing name.

This can affect manufacturers, distributors, and other importers bringing covered rubber materials into the United States. If a product falls within the scope, the importer may need to declare the applicable measure at entry and could face additional duty liability beyond ordinary customs duty. Classification under the Harmonized Tariff Schedule (HTSUS), the product’s physical characteristics, country of origin, producer or exporter, and the scope language all matter. A customs broker or trade professional may be needed when the scope is unclear.

What to check

• Read the official scope carefully and compare it with the product’s composition, form, grade, specifications, and intended use; do not rely on the product name alone.
• Confirm the HTSUS classification, country of origin, manufacturer, exporter, and entry documentation used for the shipment.
• Check whether the measure distinguishes among producers, exporters, countries, or particular product exclusions, and verify the current instructions in official government sources.
• Ask your customs broker or trade counsel to review close cases, scope questions, and potential duty-security or reporting requirements before importation.
• Keep technical datasheets, purchase records, origin documents, and classification rationale so you can support the entry if Customs or the relevant agency asks questions.