Cement Sandwich Building Blocks from Japan
Cement sandwich building blocks consist of a concrete core with insulating foam layers bonded by cement, used for energy-efficient wall construction. They are composite concrete blocks, not reinforced, and are classifiable as building blocks under tariff item 6810.11.00.
Duty Rate — Japan → Canada
3%
Import Tips
• Ensure the foam layers are not considered separate materials that could change classification
• Provide a breakdown of components to confirm the concrete matrix is primary
• Check for any insulation standards compliance