Zinc 2-Mercaptobenzothiazole (ZMBT) from China
ZMBT acts as a medium-speed rubber accelerator with excellent dispersion properties, used in tire and mechanical goods production. Classified in HTS 2930.90.92.31 as its organo-sulfur metal coordination compound principal use is rubber vulcanization per chapter coordination compound rules.
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
• Metal content analysis required; declare zinc percentage accurately for duty computation
• Use UN-approved packaging for this combustible solid (UN 3077)
• Distinguish from rubber protective agents which classify under 3812.10