Dipenta methylene thiuram tetrasulfide from Mexico
A thiuram tetrasulfide derivative containing piperidine rings, specifically enumerated in HTS 2933.39.08.00. Functions as an ultra-accelerator in rubber vulcanization processes for tire manufacturing.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.60100%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide end-use statement confirming rubber accelerator application to avoid chemical weapon precursor scrutiny
• TSCA certification required for US manufacture/import; include inventory status documentation
• Not classifiable as organo-sulfur under 2930.90 due to nitrogen heterocyclic principal character