2930.90.92.31/2-Mercaptobenzothiazole (MBT)/Japan

2-Mercaptobenzothiazole (MBT) from Japan

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 — 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%

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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