2-Mercaptobenzothiazole (MBT) from Germany
MBT is a primary rubber accelerator used in acidic and neutral compounding systems, providing good aging properties. As a benzothiazolethiol organo-sulfur compound principally for rubber processing, it falls under HTS 2930.90.92.31 per Chapter 29 definitions.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Provide comparative rheometer curves demonstrating rubber curing performance
• Declare exact mercapto content as impurities affect duty calculation basis
• Confirm not for copper fungicide use to avoid Chapter 38 reclassification