2809.20.00/Water Treatment Phosphoric Acid 81%/Canada

Water Treatment Phosphoric Acid 81% from Canada

81% phosphoric acid for corrosion control and scale prevention in cooling water systems. Classified under HTS 2809.20.00 as pure polyphosphoric acid for industrial water treatment.

Duty Rate — Canada → United States

10%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada

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Import Tips

• Include EPA registration if claiming specific water treatment formulations

• Document pH adjustment capabilities for system compatibility