High-Purity Fused Silica Lump from Canada
Irregular lumps of high-purity fused silica obtained directly from the melting furnace, used in refractory linings or remelting. HTS 7001.00.10.00 applies as glass in the mass specifically of fused quartz/silica, excluding waste or cullet.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Distinguish from cullet (7001.00.20); provide production records showing direct fusion, not recycling
• Declare OH content levels; low-hydroxyl lumps for specific optics may need additional testing
• Avoid bulk packaging pitfalls; use vermiculite for thermal protection during sea freight