Attapulgite Drilling Grade Clay from United States
Fibrous attapulgite clay optimized for oil well drilling fluids, providing suspension properties. It is classified under tariff item 2508.40.00 as an 'other clay' in powdered or granular form for industrial use, not calcined or expanded.
Duty Rate — United States → Canada
0%
Import Tips
• Ensure the clay is not mixed with drilling fluid additives, which would change classification
• Document the product's use in drilling fluids to support the tariff item
• Verify that the clay is not calcined, as that would exclude it from Chapter 25