Natural Kieselguhr Powder from Mexico
Uncalcined kieselguhr powder from fossil deposits, used as an insecticide carrier due to its porous structure and low specific gravity. This raw siliceous earth fits the tariff item as a crude or mechanically processed product.
Duty Rate — Mexico → Canada
0%
Import Tips
• Verify the product is not treated with chemical additives for specific carrier functions
• Keep the product uncalcined and unmixed to stay in Chapter 25
• If used as a carrier for pesticides, ensure the final formulated product is classified separately