Zinc Dibenzyl Dithiocarbamate (ZBEC) from Japan
ZBEC serves as a super-accelerator for low-sulfur vulcanization systems in rubber compounds, offering rapid curing at low temperatures. Classified under HTS 2930.90.92.31 as an organo-sulfur dithiocarbamate derivative principally used in rubber processing per Chapter 29 organo-sulfur provisions.
Duty Rate — Japan → 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
• Verify TSCA registration and provide certificate of analysis showing metal-organic sulfur structure
• Label as 'rubber accelerator' with CAS number 55310-56-0 to prevent misclassification
• Avoid bulk packaging over 25kg drums which may trigger additional hazmat shipping declarations