Toluene Diisocyanate (TDI) 80/20 from Mexico
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.
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
• Isomer ratio certification required; highly reactive—avoid moisture exposure
• Watch for TSCA registration needs