UV-Grade Fused Silica Chunk from Mexico
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 — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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