1,5-Naphthalene Diisocyanate (NDI) from China
NDI features two isocyanate groups on a naphthalene ring system, falling under HTS 2929.10.80 as other isocyanates. Primarily employed in spandex fiber production and high-strength polyurethane elastomers.
Duty Rate — China → United States
19%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include fiber-grade purity specifications (≥99.5%) in commercial invoice
• Declare sublimation point data for proper storage condition declarations
• Comply with textile chemical precursor import notifications