Polytetramethylene Ether Glycol — South Korea — A-580-922

An AD/CVD measure is a trade remedy that can apply when the U.S. finds that imported merchandise is sold at less than fair value (antidumping, or AD) or benefits from government financial assistance (countervailing duty, or CVD). A measure titled or based on Polytetramethylene Ether Glycol (PTMEG) generally concerns this chemical product, but the legal product scope—not the title alone—controls whether a shipment is covered.

The measure typically affects U.S. importers, foreign producers and exporters, and sometimes related parties or downstream manufacturers handling covered PTMEG. It matters because covered entries may require special entry reporting, cash deposits, additional duties, and supporting records. The applicable treatment can depend on the product’s technical characteristics, country of origin, producer or exporter, and the proceeding’s current instructions. HTS classification can help identify a possible issue, but it does not by itself determine scope.

What to check

• Read the official scope language carefully and compare the product’s composition, specifications, form, and intended use; ask a customs broker or trade counsel about close cases.
• Confirm the product’s country of origin and identify the actual manufacturer, exporter, and any related parties, because AD/CVD treatment may vary by these facts.
• Check the applicable HTS classification as a screening tool, then verify current AD/CVD instructions and any cash-deposit requirements with official sources or your broker.
• Keep technical data sheets, invoices, contracts, origin records, manufacturer information, and classification reasoning that support the entry’s treatment.
• Review whether exclusions, scope rulings, certifications, or special entry documentation may apply before importing; do not rely only on a supplier’s statement or a product name.