Dinas Fire-Clay Earth from Mexico
Dinas fire-clay earth is a siliceous fire-clay used in high-temperature silica bricks for coke ovens. It is classified under tariff item 2508.30.00 as fire-clay, given its siliceous nature and low flux content. The product is not subjected to processing beyond crushing or grinding, aligning with Chapter 25 Note 1.
Duty Rate — Mexico → Canada
0%
Import Tips
• Verify that the dinas earth is not mixed with other clays or additives, as Chapter 25 Note 1 prohibits mixed products
• Provide a chemical analysis showing silica content to support classification as fire-clay
• Ensure the product is in a crude or mechanically processed state, not calcined beyond what is typical for this material