3103.19.00.00/Triple Superphosphate Fertilizer (TSP)/Canada

Triple Superphosphate Fertilizer (TSP) from Canada

Triple superphosphate (TSP) is a highly concentrated phosphatic fertilizer containing 44-48% P2O5, produced by reacting phosphate rock with phosphoric acid. It falls under HTS 3103.19.00.00 as 'other superphosphates' distinct from single superphosphate, used primarily for crops needing high phosphorus like grains and fruits. This granular product dissolves readily in soil to promote root development.

Duty Rate — Canada → United States

0%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
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Import Tips

• Verify P2O5 content via lab analysis to confirm classification under superphosphates, avoiding misclassification as basic slag

• Include certificate of analysis showing fluorine content under 0.2% if claiming specific duty rates; ensure bulk packaging complies with heading 3103 exclusions

• Check for pesticide residues as phosphatic fertilizers may trigger EPA import alerts; common pitfall is inadequate soil nutrient labeling