N-tert-Butyl-2-benzothiazolesulfenamide (TBBS) from China
TBBS is a fast-curing rubber accelerator with benzothiazole structure, ideal for tire treads and mechanical goods. Classified in HTS 2934.20.4000 under additional U.S. note 3 for pure benzothiazole compounds.
Duty Rate — China → United States
31.5%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Specify batch purity (>96%) to avoid reclassification as mixture
• Include vulcanization test data if requested for end-use verification
• Confirm no azo-dye diluents per Chapter 29 exclusion note 2(h)