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