Precipitated Silica Powder from Canada
Precipitated silica is a form of synthetic amorphous silicon dioxide produced by precipitation from a solution containing silicate salts. It falls under HTS 2811.22.5000 as 'other' silicon dioxide, distinct from natural diatomaceous earth or fused quartz, used primarily as a reinforcing filler in rubber and tire manufacturing.
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
• Verify purity and amorphous structure via lab analysis to confirm classification as synthetic silicon dioxide under 2811, not mineral products
• Include Certificate of Analysis (COA) showing SiO2 content >99% and production method to prevent reclassification as commodity chemicals