Silicon Dioxide (Amorphous Silica) from United States
Amorphous silicon dioxide, also known as synthetic silica, is a chemically defined inorganic oxygen compound of the non-metal silicon, used as a desiccant, filler, or in cosmetics. It is classified under tariff item 2811.29.00 as an 'other inorganic oxygen compound of non-metals.' Chapter 28 notes do not exclude it, provided it is not in a form covered by other headings like glass or optical elements.
Duty Rate — United States → Canada
0%
Import Tips
• Ensure the silicon dioxide is not in the form of glass frit or optical elements, which fall under other headings
• If the product is synthetic and used as a filler, confirm it is not mixed with other substances that could change classification
• Declare the exact particle size and purity to the CBSA to support the tariff item