Artificial Stone Window Sills from Japan
Engineered stone sills for window frames, providing weatherproof exterior ledges. HTS 6810.99.00.80 covers these as other artificial stone building articles, beyond basic trim.
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
• Freeze-thaw cycle testing certificates essential
• Measure water absorption rates for customs
• Distinguish from Chapter 68 natural stone sills