Crude Pumice Stone Blocks from Canada
Large, unprocessed blocks of natural pumice stone extracted directly from volcanic deposits, remaining in their crude form without further shaping or sizing. This falls under HTS 2513.10.00.10 as crude pumice in irregular pieces, suitable for industrial grinding or further processing into abrasives. It has not been cut, powdered, or refined beyond initial mining.
Duty Rate — Canada → United States
Rate breakdown
Import Tips
• Verify the pumice is in crude or irregular pieces under 0.508 mm thickness exclusion for split materials; provide geological origin certificates to confirm natural status
• Ensure no heat-treatment beyond mining to avoid reclassification; common pitfall is contamination with processed abrasives triggering higher duties
• Declare exact weight and volume accurately as pumice is low-density; use ISPM-15 compliant packaging for bulk shipments to prevent quarantine issues