6810.11.00.70/Sound-Absorbing Concrete Blocks/Japan

Sound-Absorbing Concrete Blocks from Japan

Concrete blocks engineered with internal textures or materials to reduce noise in urban barriers or studios. HTS 6810.11.00.70 applies as unreinforced building blocks of artificial stone for construction. Acoustic properties don't change core 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%

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Import Tips

• Include acoustic test reports (e.g

• NRC ratings) but tie to building use

• Avoid claiming specialty finishes; declare as plain concrete

• Watch for fiber additives pushing to reinforced category