Fused Quartz Glass Lumps from Japan
High-purity fused quartz glass in irregular lump form, created by fusing silica at high temperatures into a massive, unworked state. Falls under HTS 7001.00.20.00 per Chapter 70 note including fused quartz as 'glass in the mass, other', ideal for remelting in optics production.
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
• Include lab analysis proving silica content >99% to confirm fused quartz status under Chapter 70 definitions
• Avoid packaging that suggests worked glass; ship in bulk to prevent reclassification as articles