6810.11.00/Solid Concrete Masonry Units (CMU)/Japan

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%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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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