p-Phenylene Diisocyanate (PPDI) from China
PPDI is a para-substituted benzene ring with two isocyanate groups, classified in HTS 2929.10.80 as other isocyanates with nitrogen function. Utilized in advanced polyurea coatings and composite materials.
Duty Rate — China → United States
19%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Specify crystal form vs liquid dispersion in product specifications
• Include explosion risk assessment for dust handling precautions
• Verify absence of heavy metal catalysts in production documentation