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Insulated Concrete Form (ICF) Blocks from Mexico

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 — Mexico → United States

13.2%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Declare as 'concrete blocks with foam inserts' and specify pourable design

Ensure structural integrity tests for customs acceptance