Toluene Diisocyanate (TDI) 80/20 Mixture from China
TDI 80/20 is an 80:20 mixture of 2,4- and 2,6-toluene diisocyanate isomers, qualifying as 'other' isocyanates under HTS 2929.10.80.90 per Chapter 29 note (b) for isomer mixtures. Widely used for flexible slabstock polyurethane foams.
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
• UN 2078 Hazard Class 6.1; require secondary containment and spill response plans
• GC-MS analysis required to verify 80/20 isomer ratio for proper 'other' subheading
• Avoid declaring as crude TDI; specify stabilized grade with <0.1% hydrolysis