Dipenta methylene thiuram tetrasulfide from Japan
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 — Japan → United States
15%
Rate breakdown
9903.04.6215%Pharmaceuticals: patented pharma from JP/EU/KR/CH/LI — 15% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
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