MBTS Dibenzothiazole Disulfide from Canada
MBTS, derived from 2-Mercaptobenzothiazole, contains two benzothiazole rings linked by disulfide bond, qualifying under HTS 2934.20.1500 provisions. Slow-curing accelerator used in EPDM rubber formulations.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Molecular structure diagrams confirming benzothiazole ring systems required for classification
• Batch purity certificates (>97%) essential to distinguish from technical grade mixtures
• End-use statements specifying rubber vulcanization prevents pesticide misclassification