Potassium Phosphite from Canada
Potassium phosphite (KH2PO3) serves as a fungicide and plant nutrient in agriculture, promoting plant health. Under HTS 2835.10.00.00 as a phosphonate (phosphite) of potassium, an inorganic base. It is typically supplied as a liquid fertilizer concentrate.
Duty Rate — Canada → United States
13.1%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• EPA pesticide registration required; provide formulation analysis showing >90% phosphite; distinguish from phosphate fertilizers