Stabilized Isoprene for Synthetic Rubber from Canada
Polymerization-grade isoprene containing TBHP stabilizer to prevent premature polymerization during storage and transport. Classified under HTS 2901.24.50.00 per Chapter 29 note (f) allowing stabilizers necessary for preservation. Remains chemically defined isoprene despite added stabilizer.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Document stabilizer type/concentration (typically <0.1% TBHP); exceeds limits may trigger Chapter 38 mixed preparations
• Include Material Safety Data Sheet (MSDS) specifying stabilizer doesn't render product for specific use per Chapter note (g)