Lightweight Pumice Aggregate for Concrete from Japan
Crushed pumice aggregate producing lightweight structural concrete with good insulation. Classified HTS 2513.10.0080 as pumice stone natural abrasive material sized for concrete mix. Reduces dead load while maintaining strength.
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
• ASTM C331 testing for lightweight aggregates exposure to sulfates
• Gradation analysis per ASTM C136 for concrete mix design
• Soundness testing prevents alkali-silica reactivity issues