Float Zone Crystal Grower Quartz Crucible from Japan
High-purity quartz crucible used in float zone crystal growers to contain molten silicon during the zone refining process for semiconductor material production. This non-electrical part maintains material purity at extreme temperatures. Falls under 8487.90.00 as an unspecified machinery part for semiconductor equipment.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Require material certificates proving high-purity quartz suitable only for semiconductor processing
• Confirm no electrical connectors or features present
• Common pitfall: incorrect classification as glassware under Chapter 70