Lightweight Concrete Breeze Blocks from Japan
Breeze blocks are lightweight concrete building blocks with voids for ventilation and reduced weight, commonly used in non-load-bearing walls. Classified under HTS 6810.11.00.70 as unreinforced concrete building blocks, distinct from solid bricks. They qualify as 'other' blocks for construction purposes.
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
• Document density and void percentage to confirm lightweight status; avoid claiming as insulated if not certified
• Provide invoices specifying non-reinforced nature; test for compliance with local building codes like IBC standards