UV-Grade Fused Silica Chunk from Japan
Chunks of premium fused silica optimized for ultraviolet transmission, supplied in bulk for optical fabrication. HTS 7001.00.10.00 covers this as unworked glass in the mass of fused silica.
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
• Test UV transmission (>90% at 200nm); declare grade to justify premium pricing
• Avoid moisture exposure; fused silica is hygroscopic in hydroxyl-rich forms
• Use ISPM-15 compliant pallets; declare weight precisely for volumetric duties