Insulated Concrete Form (ICF) Blocks from Japan
ICF blocks combine expanded polystyrene cores with concrete-receiving shells, poured on-site for walls. HTS 6810.11.00 if imported as preformed concrete building blocks.
Duty Rate — Japan → United States
13.2%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Declare as 'concrete blocks with foam inserts' and specify pourable design
• Ensure structural integrity tests for customs acceptance