High-Purity Potassium Sulfate for Greenhouse Use from United States
Ultra-pure potassium sulfate crystals for greenhouse use, minimizing impurities for sensitive ornamentals. This is pure potassium sulphate, a potassic mineral fertilizer, and is not put up in the forms or packages described in heading 31.05.
Duty Rate — United States → Canada
0%
Import Tips
• Ensure the product is not packaged for retail sale, as that may trigger classification under heading 31.05
• Provide purity documentation to support the tariff classification
• Verify that the product is not a separate chemically defined compound excluded by Chapter 31 Note 1(b) — potassium sulfate is explicitly included in Note 4(a)(iii)