N-Cyclohexyl-2-benzothiazole sulfenamide (CBS) from Japan
CBS is an organo-sulfur compound used as a delayed-action accelerator in rubber vulcanization, providing optimal processing safety and fast curing properties. It falls under HTS 2930.90.92.31 because it is a benzothiazole sulfenamide specifically designed for rubber processing, matching the chapter's classification for organo-sulfur compounds used principally in this application.
Duty Rate — Japan → United States
15%
Rate breakdown
9903.04.6211.3%Pharmaceuticals: patented pharma from JP/EU/KR/CH/LI — 15% 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
• Provide Safety Data Sheets (SDS) and confirm 99%+ purity to avoid reclassification as mixtures under Chapter 38
• Include end-use statements verifying rubber processing application to qualify for this specific subheading
• Check REACH compliance documentation if sourced from EU, as it affects import labeling requirements