Raw Sulfur Blocks from Mexico
Large cast blocks of molten natural sulfur cooled in molds from Frasch recovery, unrefined. Classified in 2503.00.00 as crude sulfur form not meeting exclusion criteria.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Weight certificates accounting for block uniformity and impurities
• Melting point tests confirm natural vs synthetic sulfur characteristics