HTS 2809
Diphosphorus pentaoxide; phosphoric acid;polyphosphoric acids, whether or not chemically defined:
This is a heading-level category. Duty rates are set at the subheading level.
See the subheadings below for specific rates.
Related HS Codes
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This information is for general reference only and does not constitute customs business, tariff classification, or legal advice. Verify current rates with the official USITC HTS or a licensed customs broker.