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%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
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