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%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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