Recovered Sulfur from Sour Gas from Canada
Elemental sulfur recovered as a byproduct from natural gas desulfurization plants via Claus process, in flake or prill form. Falls under 2503.00.00 as it remains unprocessed natural sulfur, not sublimed or colloidal.
Duty Rate — Canada → 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
• Provide gas processing recovery certificates to affirm natural sulfur status
• Ensure flake size specs match unrefined criteria to avoid advanced processing claims