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

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

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 — Mexico → United States

16.5%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter

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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