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Perforated Concrete Partition Blocks from Japan

These concrete blocks feature holes for wiring or piping, ideal for interior partition walls in commercial buildings. Under HTS 6810.11.00.70 as other unreinforced concrete building blocks for construction. Perforations aid installation without altering classification.

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

Detail perforation specs and load ratings in entry docs to justify building block status

Test for uniformity; non-compliant blocks risk rejection under construction material regs