Benzothiazyl Disulfide (MBTS) from China
MBTS serves as a retarder, secondary accelerator, and sulfur donor in rubber vulcanization systems. This organo-sulfur disulfide's predominant rubber processing role qualifies it for HTS 2930.90.92.31 classification.
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
• CAS 120-78-5 must appear on all documentation
• Distinguish from pure disulfides used in pharma (2930.90.91)
• Thermal stability data recommended for customs verification