Recovered Frasch Process Sulfur from Canada
Yellow solid sulfur blocks recovered via the Frasch hot-water mining method from underground Gulf Coast salt domes. Falls under HTS 2503.00.00.90 as crude sulfur not further refined, distinct from precipitated forms.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Include process extraction certificates proving non-precipitated origin to prevent reclassification
• Declare block dimensions and weight; molten sulfur shipments risk categorization as refined
• Check for contamination thresholds that could trigger heading 2530 earth color mixtures