4,4'-Methylenebis(phenyl isocyanate) from Mexico
This aromatic diisocyanate, also known as pure MDI, contains two isocyanate groups linked by methylenebis(phenyl), qualifying under HTS 2929.10.80 for other isocyanates. Essential raw material for rigid polyurethane foams in insulation panels.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Specify polymeric vs monomeric MDI ratio in import documentation
• Include flash point and vapor pressure data for proper hazmat classification
• Verify TSCA registration for US chemical import compliance