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2917.35.00.00/Phthalic Anhydride 99.5% Technical Grade/Mexico

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

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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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