Maleic Anhydride with Stabilizer Additive from Japan
Maleic anhydride containing <0.05% polymerization inhibitor (hydroquinone) for transport stability, classified HTS 2917.14.5000 per Chapter 29 note (f). Remains chemically defined acyclic anhydride for resin production.
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 stabilizer concentration (<1%) to qualify under Chapter 29 note (f) exception
• Provide quantitative HPLC analysis showing maleic anhydride as principal component (>98%)
• Separate from polyester prepolymers which classify under Chapter 39