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
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Differentiate prill formation method in technical specs to avoid colloidal confusion
• Particle size distribution tests confirm natural vs manufactured morphology