3103.19.00.00/Triple Superphosphate Fertilizer (TSP)/China

Triple Superphosphate Fertilizer (TSP) from China

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 — China → United States

25%

Rate breakdown

9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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

Triple Superphosphate Fertilizer (TSP) from China — Import Duty Rate | HTS 3103.19.00.00