Official-source tariff data · 2026 HTS Rev 19 · synced · Operational
SkuWatch tariff intelligence
AD/CVD measure

Coumarin — China — A-570-830

ITA AD/CVD · Expired · CN

Plain-language explainer

Written to help non-specialists understand this page. Rates, dates, and legal facts come from the official records above and on the linked source.

“Coumarin” is the product covered by a trade-remedy measure identified as AD/CVD. AD means antidumping duty, which addresses imports allegedly sold in the United States at less than normal value. CVD means countervailing duty, which addresses imports that allegedly benefit from government subsidies. These duties are separate from ordinary customs duty and may apply in addition to it.

The measure typically affects importers bringing covered coumarin products from the countries and producers or exporters identified in the official measure. Coverage depends on the legal product description, country of origin, producer or exporter, and sometimes the product’s physical characteristics—not just the product name or an HTS classification. An importer may need to provide additional cash deposits at entry and later face a final duty assessment, so confirming coverage before importation is important.

What to check

Basis AD/CVD
Origin China
Current legal effect Expired
Lifecycle Expired
Effective date
Expired on 2003-02-01

Legal basis

ADCVD

Open official source

Identity & verification

This record is identified by official case A-570-830 and origin China. Collected 2026-09-22. Last confirmed in the official ITA data on 2026-09-22.

Affected HTS entries

No explicit linked HTS code list is available in this snapshot record.

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