Heat-Treated Pumice Gravel from Japan
Pumice stone gravel thermally processed to enhance durability for use in concrete aggregates and water filtration systems. Classified under HTS 2513.10.00 as heat-treated pumice stone, retaining its natural abrasive properties. The treatment improves density without altering its fundamental pumice composition.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Provide lab analysis proving heat-treatment doesn't constitute manufacturing; declare particle size distribution for customs valuation; avoid packaging that suggests retail spa use to prevent reclassification