Multi-Void Hollow Clay Bricks 4-Core Design from Japan
Four-core multi-void hollow clay bricks providing superior insulation, fired after clay shaping for cavity wall construction. HTS 6904.10.00.40 applies to these other hollow building bricks meeting non-refractory criteria.
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
• Provide cross-sectional diagrams showing void structure to prove hollow classification
• Test and declare density under 120 lb/cu ft for lightweight hollow brick status
• Separate from support tiles which might classify under 6904.90 if not bricks