</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Polyurethane Foam Insulation Board from China

Rigid cellular polyurethane foam boards used for thermal insulation in building construction. Classified under HTS 3921.13.5000 as other cellular plates and sheets of polyurethanes, where the polymer meets the 95% monomer content requirement per subheading notes.

Duty Rate — China → United States

41.7%

Rate breakdown

9903.88.0225%Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China

Import Tips

Verify polymer composition meets 95% polyurethane monomer content per Chapter 39 subheading notes to avoid reclassification

Provide technical data sheets confirming cellular structure and density for customs valuation