Zinc Dibenzyl Dithiocarbamate (ZBEC) from China
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 — China → United States
16.2%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
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