Phthalic Anhydride 99.5% Technical Grade from Canada
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 — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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