2-(Morpholinothio)benzothiazole (MBS) from Mexico
MBS is a sulfenamide-type benzothiazole accelerator providing scorch safety in rubber compounding, particularly for automotive applications. Falls under HTS 2934.20.4000 as specified in additional U.S. note 3 for pure heterocyclic compounds.
Duty Rate — Mexico → United States
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Confirm 98%+ purity to maintain Chapter 29 classification vs mixtures
• Provide end-use statement if customs questions industrial vs retail application
• Check for REACH compliance documentation if transshipping from Europe