Stilbenic Optical Brightening Agents — China — A-570-972

“Stilbenic Optical Brightening Agents” refers to certain chemical products used to make paper, textiles, detergents, and other materials appear whiter or brighter. A US AD/CVD measure may apply when these goods are imported from specified countries and fall within the legal product description, called the scope. The product’s chemical composition, form, use, and packaging can matter; the product name or tariff classification alone may not decide coverage.

AD means antidumping, addressing imports sold in the United States at less than normal value. CVD means countervailing duty, addressing imports that benefit from government subsidies. These measures typically affect foreign producers and exporters, US importers of record, and sometimes related parties. An importer may owe additional duties beyond ordinary customs duty, and can face later liability if Customs and Border Protection determines that entries were covered or that required information was incomplete.

What to check

• Read the official scope language and compare the product’s ingredients, concentration, physical form, and packaging—not just its commercial name.
• Check the applicable Harmonized Tariff Schedule classification, but treat it as a screening tool; scope language controls when there is a conflict.
• Confirm the exporting country, producer, exporter, and supplier chain, because AD/CVD coverage and duty treatment can depend on these details.
• Ask a customs broker or trade counsel to review borderline products, scope questions, and the correct entry and deposit requirements.
• Keep technical specifications, safety data sheets, invoices, origin records, and producer information that support the product’s identity and supply chain.