Sodium Thiosulfate — Germany — A-428-807

A trade measure labeled “Sodium Thiosulfate” with type “AD/CVD” concerns a product category identified by the U.S. government. “AD” means antidumping: it addresses imports sold at less than fair value. “CVD” means countervailing duty: it addresses imports that benefited from certain government subsidies. These are additional import charges that can apply separately from ordinary customs duty.

The measure typically affects U.S. importers bringing covered sodium thiosulfate products from specified countries or exporters, not necessarily every product with a similar name. Coverage depends on the legal product description, country of origin, producer or exporter, and any listed exclusions. The importer of record is generally responsible for declaring the goods correctly, paying applicable deposits or duties, and keeping supporting records. AD/CVD treatment can also involve customs entries, liquidation, reviews, and possible changes to the final amount owed.

What to check

• Read the measure’s scope description, including chemical specifications, forms, packaging, and exclusions; do not rely on the product name alone.
• Confirm the product’s country of origin and identify the actual producer and exporter, since AD/CVD coverage can vary by country or company.
• Check the applicable HTS classification as a customs starting point, but remember that the written scope—not the HTS number alone—controls coverage.
• Verify current instructions and deposit requirements in official U.S. government sources, and ask a customs broker or trade counsel to resolve uncertain scope or classification questions.
• Keep invoices, bills of lading, origin records, production details, and supplier certifications that support the entry and any claimed exclusion.