Prothioconazole from Japan
Prothioconazole features a triazolemethylthio ring system as a broad-spectrum triazole fungicide for cereals and soybeans. It falls under HTS 2934.99.18.00 as an 'other' aromatic heterocyclic pesticide, containing organo-sulfur directly linked to carbon per Chapter 29 note on heading 2930 exclusions. Imported as off-white technical solid.
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
• Sulfur content verification prevents misclassification to organo-sulfur 2930
• Chiral purity (>95% S-isomer) specification required for efficacy claims
• Temperature-controlled shipping (<40°C) prevents triazole decomposition