</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Di-tert-Butyl Peroxide (Aromatic Grade) from Mexico

Di-tert-butyl peroxide is an aromatic ether peroxide used as a crosslinking agent in rubber and polymer production. Classified under HTS 2909.60.10.00 for aromatic ether peroxides meeting additional U.S. note 3 criteria for chemically defined peroxides in section VI.

Duty Rate — Mexico → United States

15.5%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Classify as UN3105 hazardous material requiring specific IBC or drum packaging with self-accelerating decomposition temperature documentation

Provide certificate of analysis confirming aromatic content and peroxide value to match note 3 specifications

Avoid common pitfall of improper stabilization leading to classification under mixtures heading 3824