Monopotassium Terephthalate from Japan
Monopotassium terephthalate is a partially neutralized salt of terephthalic acid, employed in niche chemical syntheses and polymer modifiers. Covered by HTS 2917.36.00.00 as a salt of the specified aromatic polycarboxylic acid, aligning with Chapter 29 definitions.
Duty Rate — Japan → United States
12.5%
Rate breakdown
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
• Include stoichiometric analysis proving salt formation; ensure packaging prevents moisture absorption affecting purity; declare exact counterion to avoid salt misclassification