Methionine, Synthetic — Japan — A-588-041

An AD/CVD measure on synthetic methionine is a trade-remedy measure. “AD” means antidumping: the government may find that imported merchandise is sold in the United States at unfairly low prices. “CVD” means countervailing duty: the government may find that foreign producers or exporters receive government subsidies. These are separate concepts, even when listed together.

The measure typically affects importers bringing covered synthetic methionine from specified countries, as well as the foreign manufacturers and exporters involved. It matters because an importer may owe additional duties beyond ordinary customs duty. The exact result depends on the product’s scope, country of origin, manufacturer, exporter, entry details, and the applicable official instructions. Professional terms to know include “scope,” “cash deposit,” “liquidation,” and “assessment.”

What to check

• Read the official scope language carefully; do not rely only on the product name or an HTS classification.
• Confirm whether the product is synthetic methionine and compare its ingredients, form, packaging, and intended use with the scope description.
• Verify the country of origin, manufacturer, and exporter for every shipment; AD/CVD treatment can differ by these parties and by country.
• Use the listed HTS number as a screening tool, not as the final decision; scope language generally controls whether merchandise is covered.
• Ask a customs broker or trade lawyer to confirm cash-deposit, entry, and recordkeeping requirements before importing if coverage is uncertain.