Rock Phosphate Heat-Treated Fertilizer from United States
Rock phosphate that has been heat-treated beyond simple impurity removal, such as calcination, is a phosphatic fertilizer covered by chapter note 3(a)(ii). This product is used to supply phosphorus to agricultural soils and falls under tariff item 3103.90.00 as a phosphatic fertilizer not elsewhere specified.
Duty Rate — United States → Canada
0%
Import Tips
• Document the heat-treatment process to show it goes beyond simple impurity removal, as this is essential for classification
• Keep records of the source rock phosphate's heading 25.10 origin
• Verify that the product is not mixed with other substances that could change its classification