Silica Glass Microspheres (Fused Quartz) from Canada
Synthetic fused silica glass microspheres (1-20 microns) for semiconductor polishing slurries. HTS 7018.20.00.00 includes fused quartz microspheres ≤1 mm per chapter note defining 'glass' inclusively.
Duty Rate — Canada → United States
15%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Certify SiO2 purity level; use anti-static packaging for cleanroom compatibility; segregate from leaded glass types