Tetramethylthiuram Monosulfide (TMTM) from Japan
TMTM serves as a rubber accelerator and vulcanizing agent with aromatic dithiocarbamate structure. HTS 2930.20.20.50 covers this as an 'other' aromatic thiocarbamate per Chapter 29 organo-sulfur provisions. Technical grade distinguishes from formulated rubber chemicals.
Duty Rate — Japan → United States
21%
Rate breakdown
9903.04.628.5%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide vulcanization test data confirming chemical accelerator function
• Ensure dust-free packaging with anti-caking agents per Chapter 29 note (f) allowances
• Cross-check against AD/CVD orders for Indian and Chinese producers