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%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• EPA pesticide registration required; provide formulation analysis showing >90% phosphite; distinguish from phosphate fertilizers