2934.20.05.00/N-tert-Butyl-2-benzothiazolesulfenamide (TBBS)/Japan

N-tert-Butyl-2-benzothiazolesulfenamide (TBBS) from Japan

N-tert-Butyl-2-benzothiazolesulfenamide (TBBS) is a specific sulfenamide accelerator containing a benzothiazole ring-system, classified under HTS 2934.20.0500 as a heterocyclic compound not further fused. It is primarily used in the rubber industry to control vulcanization speed and improve processed rubber properties.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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Import Tips

• Provide chemical analysis certificates confirming TBBS purity (>97%) and benzothiazole structure to avoid misclassification as mixtures under Chapter 38

• Ensure packaging complies with UN regulations for hazardous materials (toxic dust risk) with proper labeling for industrial chemical import

• Verify REACH compliance for EU markets and TSCA registration for US; common pitfall is missing safety data sheets leading to customs delays