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CBS Rubber Accelerator (N-Cyclohexyl-2-benzothiazole sulfenamide) from Japan

CBS is a delayed-action rubber accelerator used primarily in tire manufacturing and other rubber products to control vulcanization speed. It falls under HTS 3812.10.5050 as a prepared rubber accelerator not elsewhere specified, containing sulfenamide compounds for optimal processing properties. This product ensures uniform curing and improved mechanical properties in natural and synthetic rubber.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter

Import Tips

• Provide Safety Data Sheets (SDS) and technical specifications confirming accelerator purity and CAS number for customs verification

• Ensure proper Hazard Class labeling (often UN3077 Environmentally Hazardous Substance) and comply with TSCA pre-notification if applicable

• Verify REACH compliance for EU-origin products and avoid misclassification as basic organic chemicals under Chapter 29