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

2-Methylmercaptobenzimidazole from China

A specific benzimidazole derivative with organo-sulfur functionality, explicitly listed in HTS 2933.99.1200. Used as rubber vulcanization accelerator and corrosion inhibitor. Classified here rather than organo-sulfur heading 2930 per chapter notes.

Duty Rate — China → United States

100%

Rate breakdown

9903.04.6094.2%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)

Import Tips

TSCA inventory status must be certified

Rubber industry end-use declaration prevents misclassification

Odor documentation required for proper transport