Polyurethane Foam Sheet / Block — HS Code
Other plates, sheets, film, foil and strip, of plastics — of polyurethanes, rigid
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HS Code
3921 — Other plates, sheets, film, foil and strip, of plastics
Classification Context
Chapter
Chapter 39 — Plastics
Heading
3921 — Other plates, sheets, film, foil and strip, of plastics
Applicable Rule
GRI 1 — polyurethane foam sheets are classified under 3921 as plates/sheets of polyurethane
Prior Rulings
EU — EBTI (Binding Tariff Information)
Search EU EBTI databaseUS — CBP CROSS Ruling Database
Search US CBP CROSS rulingsUK — HMRC Trade Tariff
View UK Trade Tariff commodityClassification Notes
Polyurethane (PU) foam in sheets or blocks (rigid and flexible) is classified under 3921.13. Flexible PU foam for furniture and mattress padding is also 3921.13. Memory foam is a viscoelastic polyurethane and falls under 3921.13. Expanded polystyrene (EPS) foam is 3921.11. Foam-filled pillows and cushions are classified as the finished article (bedding, furniture), not as foam. Spray polyurethane foam in aerosol cans for insulation/sealing is 3214.10 (mastics), not 3921. Raw polyol and isocyanate components for making polyurethane are classified under separate organic chemistry headings.
MFN Duty Rates by Market
European Union
3921.13.10
EU Combined Nomenclature (CN) rate — applies to all 27 EU member states
United States
3921.13.10
US Harmonized Tariff Schedule (HTS) MFN rate — Section 301 tariffs may add to China-origin goods
United Kingdom
3921.13.10
UK Global Tariff (UKGT) — post-Brexit tariff schedule, independent of EU CN
Official Sources & References
WCO HS Nomenclature
World Customs Organisation — the international standard behind all HS codes
wcoomd.org
EU TARIC Database
European Commission integrated tariff — EU Combined Nomenclature (CN) rates
ec.europa.eu
US HTS Schedule (USITC)
United States International Trade Commission — official US Harmonized Tariff Schedule
hts.usitc.gov
UK Global Tariff (HMRC)
His Majesty's Revenue and Customs — UK Trade Tariff post-Brexit
trade-tariff.service.gov.uk
Disclaimer: Duty rates shown are MFN (Most-Favoured-Nation) base rates sourced from live tariff database and verified April 2026. Actual duties may differ based on country of origin, applicable trade agreements (e.g. GSP, CETA, UK-EU TCA), anti-dumping measures, or changes to tariff schedules. Always verify with the official tariff database of the importing country before making customs declarations.
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