Thiuram E (Tetramethylthiuram Tetrasulfide) from Germany
Thiuram E, or tetramethylthiuram tetrasulfide, functions as an ultra-accelerator in natural rubber vulcanization. Classified under HTS 2930.30.60.00 as other thiuram sulfides, it meets Chapter 29 criteria for organo-sulfur compounds with direct C-S bonds. This is supplied in pure form for chemical processing applications.
Duty Rate — Germany → United States
15%
Rate breakdown
9903.04.6211.3%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
• Certify as >98% purity to maintain Chapter 29 classification; provide end-use statement for rubber industry; watch for misclassification as pesticide disulfiram analog