Phthalic Anhydride Flakes from China
Phthalic anhydride in flake form is a key aromatic polycarboxylic anhydride used primarily in the production of plasticizers for PVC and polyester resins. It falls under HTS 2917.39.04.00 as it is specifically listed as 'Phthalic acid' (understood to include its anhydride form per tariff convention). This chemically defined organic compound meets Chapter 29 note (a) for separate compounds.
Duty Rate — China → United States
44%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Provide Certificate of Analysis (COA) confirming purity >99% as phthalic anhydride to avoid reclassification as mixtures
• Ensure DOT/UN proper shipping name 'Phthalic anhydride' documentation for hazardous material transport (UN 2214)
• Verify no added stabilizers beyond Chapter 29 note (f) limits to prevent exclusion from pure compound classification