Products described in additional U.S. note 3 to section VI
Compounds with other nitrogen function: > Isocyanates: > Other: > Products described in additional U.S. note 3 to section VI
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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)
Products classified under HTS 2929.10.55.00
Methylene Diphenyl Diisocyanate (MDI)
MDI is a chemically defined aromatic diisocyanate used primarily in polyurethane production for foams and coatings. It falls under HTS 2929.10.55.00 as an isocyanate specifically listed in additional U.S. note 3 to section VI, distinguishing it from other isocyanates.
Polymeric Methylene Diphenyl Diisocyanate (PMDI)
PMDI is a mixture of MDI oligomers, a chemically defined isocyanate for rigid polyurethane foams in insulation. Classified under HTS 2929.10.55.00 per additional U.S. note 3 to section VI for specific isocyanates.
Carbodiimide Stabilized MDI
This MDI variant includes carbodiimide stabilizer for extended shelf life, remaining a chemically defined isocyanate. It qualifies for HTS 2929.10.55.00 under U.S. note 3 as a listed product with necessary preservative.
Prepolymeric MDI Isocyanate
Prepolymeric MDI is a low-viscosity isocyanate prepolymer for flexible foam production, chemically defined under chapter scope. HTS 2929.10.55.00 applies due to its inclusion in additional U.S. note 3.
Modified Diphenylmethane Diisocyanate (Modified MDI)
Modified MDI features altered functionality for coatings and adhesives, still a core isocyanate per chapter notes. It is classified in HTS 2929.10.55.00 as a product described in U.S. note 3 to section VI.
Crude MDI
Crude MDI contains oligomeric impurities but remains a chemically defined diisocyanate for industrial use. Falls under HTS 2929.10.55.00 per additional U.S. note 3, allowing impurities as per chapter note 1(a).
Toluene Diisocyanate (TDI) 80/20
TDI 80/20 is an 80% 2,4-TDI and 20% 2,6-TDI isomer mix, a chemically defined isocyanate for flexible foams. HTS 2929.10.55.00 covers it as listed in U.S. note 3 to section VI.
Hexamethylene Diisocyanate (HDI)
HDI is an aliphatic diisocyanate for lightfast polyurethane coatings, chemically defined under chapter scope. Classified in HTS 2929.10.55.00 due to inclusion in additional U.S. note 3.
Isophorone Diisocyanate (IPDI)
IPDI is a cycloaliphatic diisocyanate for durable coatings, fitting chapter's organic compound definition. HTS 2929.10.55.00 applies as a product in U.S. note 3 to section VI.