Desmodur H Diisocyanate from China
Desmodur H is the commercial trade name for high-purity 1,6-hexamethylene diisocyanate (HDI) produced by Covestro, stabilized with <0.1% benzoyl chloride for transport. Classed under HTS 2929.10.3500 as the specifically named isocyanate per Chapter 29 notes (f) allowing stabilizers. Used in two-component polyurethane paints for automotive clearcoats.
Duty Rate — China → United States
44%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Declare stabilizer content explicitly; Chapter 29 note (f) permits but requires documentation to avoid reclassification
• Ensure DOT/UN-approved drums (typically 200-250kg net) with proper PGII labeling for toxic inhalation hazard