Fused Silica Glass Block from Germany
Solid block of fused silica glass cast in rectangular form for machining into precision components like telescope mirrors. Classified under HTS 7001.00.10.00 for glass in the mass of fused quartz, retaining mass character post-annealing.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Document annealing only; any grinding/polishing disqualifies from 'in the mass' status
• Specify transmission spectrum (UV to IR); affects end-use declarations for optics vs refractories
• Insure against thermal shock; recommend heated containers for transoceanic shipping