Cumene Oxidation Fumaric Byproduct from Japan
Fumaric acid recovered from cumene (isopropylbenzene) oxidation process streams, repurposed for polymer applications. Aromatic derivation via cumene qualifies for 2917.19.1500. Separated from primary acetone/phenol products.
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
• Document separation from phenol/acetone streams with distillation curves
• Test for cumene residue <10 ppm to meet purity specs
• Use 49 CFR 172.101 Table 2 packaging for organic solid acids