Tris(hydroxymethyl)aminomethane — China — C-570-231

This is an antidumping and countervailing duty measure, commonly abbreviated AD/CVD, concerning the chemical Tris(hydroxymethyl)aminomethane. Antidumping duties address imports that are sold in the United States at less than fair value, while countervailing duties address benefits a foreign government provides to producers or exporters. These duties are separate from ordinary customs duty and may apply in addition to it.

The measure typically affects U.S. importers of the covered chemical from the specified countries and producers or exporters connected with those imports. Coverage depends on the legal product description and the applicable Harmonized Tariff Schedule (HTS) classification—not simply on a product name or tariff code. An importer may need to pay cash deposits at entry and later face a final duty assessment based on the official proceeding. Confirming scope, country of origin, producer or exporter identity, and entry documentation is important; a customs broker or trade counsel may be needed for difficult scope questions.

What to check

• Read the official scope language and compare the product’s chemical identity, form, composition, and intended use; do not rely on the product name alone.
• Verify the HTS classification and country of origin, and check whether the measure lists separate treatment for particular producers or exporters.
• Determine whether the shipment requires AD/CVD cash deposits in addition to ordinary customs duties, using current official instructions.
• Keep invoices, origin records, supplier statements, technical specifications, and entry data that support the classification and scope analysis.
• Ask a customs broker or trade counsel to review borderline products, mixtures, exemptions, scope rulings, and any producer or exporter-specific requirements.