Tellurium Diethyldithiocarbamate (TDEC) from Japan
TDEC functions as a specialty ultra-accelerator providing rapid vulcanization in butyl rubber compounds for tire inner liners. As an organo-sulfur dithiocarbamate principally for rubber processing, it classifies under 2930.20.90.20 per Chapter 29 heading structure. Its tellurium content enhances curing efficiency.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Provide comparative technical data vs zinc analogs to establish rubber processing principal use
• Include REACH/ TSCA compliance documentation for tellurium compounds
• Label clearly to distinguish from general organo-metallic compounds under heading 2931