Natural Sulfur Prills from Mexico
Small spherical prills of native sulfur formed during natural cooling from molten extraction, minimally processed. Properly classified under 2503.00.00, distinct from artificially precipitated sulfur.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Differentiate prill formation method in technical specs to avoid colloidal confusion
• Particle size distribution tests confirm natural vs manufactured morphology