Dibutyl Maleate from Japan
Dibutyl maleate, an ester of maleic acid with butanol, used as reactive diluent in unsaturated polyester resins and copolymer production. Falls under HTS 2917.19.20.00 per chapter note on ester classification with parent acid.
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
• Molecular structure verification confirming maleic acid parent essential
• VOC content documentation for resin applications and environmental compliance
• Distinguish from fumarate esters which follow similar but separate classification