Bulk Crushed Sulfur Rock from Mexico
Crushed rock containing native sulfur from mining operations, used directly in sulfuric acid production. Meets 2503.00.00 criteria as unrefined sulfur not in excluded chemical forms.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Assay reports must show <70% purity to stay in crude category vs refined chemicals
• Bulk packaging requires proper ventilation declarations for sulfur dust hazards