Gypsum Lumps from Canada
Crushed gypsum in irregular lump form, minimally processed after mining but not ground or calcined. Classified under HTS 2520.10.00.00 as crude gypsum suitable for grinding into powder or direct use in agriculture. Ideal for soil amendment due to its sulfur content.
Duty Rate — Canada → United States
10%
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
• Include particle size analysis to distinguish from powdered forms that might classify elsewhere
• Ensure phytosanitary certificates if used for soil conditioning to comply with agricultural import rules
• Watch for contamination with silica; test for free silica under 1% to prevent health hazard declarations