Phthalic Anhydride 99.5% Technical Grade from Mexico
High-purity technical grade phthalic anhydride with 99.5% minimum assay, containing trace maleic anhydride impurities allowable under Chapter 29 note (a). Used in unsaturated polyester resin manufacturing and classified specifically under HTS 2917.35.00.00.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Provide Certificate of Analysis (COA) confirming purity meets Chapter 29 'separate chemically defined' criteria
• Ensure packaging prevents moisture absorption which could hydrolyze to phthalic acid