Fire-Clay Grogs from Germany
Fire-clay grogs are crushed and screened particles of fired clay used as aggregate in refractory mixes. They are classified under tariff item 2508.30.00 as fire-clay, as grogs are a form of chamotte or dinas earths. The product is valued for thermal stability in castables and is processed only by crushing and screening.
Duty Rate — Germany → Canada
0%
Import Tips
• Confirm that the grogs are not mixed with binders or other additives, as Chapter 25 Note 1 excludes mixed products
• Provide particle size distribution data to show the product is only crushed and screened
• Ensure the grogs are not expanded, as expanded clays fall under heading 68.06