Calcined Fire-Clay Powder from United States
Calcined fire-clay powder is a high-alumina clay processed at elevated temperatures to enhance its heat resistance, making it suitable for refractory brick manufacturing. It falls under tariff item 2508.30.00 as fire-clay, a clay product not subjected to processing beyond calcination, which is permitted under Chapter 25 Note 1. The product is in a powdered form, consistent with the mechanical processes allowed for classification in this chapter.
Duty Rate — United States → Canada
Import Tips
• Ensure the calcined fire-clay powder is not mixed with other substances, as Chapter 25 Note 1 excludes products obtained by mixing
• Declare the product's alumina content and processing details to support classification under 2508.30.00
• Verify that no anti-dusting agents render it specifically suitable for a particular use, which could affect classification