Ceramic Mullite Boat for Technical Furnaces from Japan
A mullite ceramic boat shaped and fired for holding samples in high-temperature technical furnaces during material testing and sintering. It qualifies for HTS 6909.19.50.95 as 'other technical uses' ceramic ware, made from siliceous clays and oxides. The design ensures stability under thermal cycling.
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
• Submit firing process documentation proving temperatures over 800°C to meet Chapter 69 requirements
• Avoid common pitfalls by specifying 'technical use' on invoices, distinguishing from refractory bricks
• Bundle with end-use declarations from importers to support classification away from Chapter 69 exclusions