Solid Concrete Masonry Units (CMU) from Japan
Solid CMUs are dense concrete blocks without voids, molded from cement mixtures for high-strength foundation and retaining walls. Classified under HTS 6810.11.00 for their role as standard building bricks and blocks in construction.
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 test reports for minimum density (over 75% solid) to confirm classification as solid units
• Label shipments clearly as 'concrete building blocks' to prevent confusion with decorative tiles