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Polyphosphoric Acid 105% for Flame Retardant Synthesis from Canada

Polyphosphoric acid at 105% H3PO4 strength, employed in manufacturing ammonium polyphosphate flame retardants. Classified under HTS 2809.20.00.40 for its polymeric phosphoric acid structure.

Duty Rate — Canada → United States

10%

Rate breakdown

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

Import Tips

Certify P2O5 content >80% to avoid downgrade to orthophosphoric acid

Include end-use statement for flame retardant production to aid classification

Monitor REACH-like compliance for phosphorus chemicals in supply chain

Polyphosphoric Acid 105% for Flame Retardant Synthesis from Canada — Import Duty Rate | HTS 2809.20.00.40