Toluene-Derived Trans-Butenedioic Acid from Japan
High-purity trans-butenedioic acid (fumaric acid) from toluene oxidation processes, used in beverage acidulation and bioplastics. Derived from aromatic hydrocarbons qualifying for 2917.19.1500. Meets chemical purity standards of chapter 29 note (a).
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 FDA prior notice for food-grade shipments with lot purity certificates
• Verify trans isomer >98% via NMR to distinguish from cis-maleic acid
• Use NA1993 proper shipping name for non-regulated solid organic acid