Sillimanite Grain for Refractories from China
Sillimanite grains, crushed and sized for use in refractory castables and ramming mixes. This unprocessed sillimanite, valued for high alumina content, falls under tariff item 2508.50.00 as sillimanite in a crushed or ground state, which is permitted under Chapter 25.
Duty Rate — China → Canada
0%
Import Tips
• Confirm that the crushing and sizing are purely mechanical processes without chemical additives
• Provide a grain size distribution report to support the classification
• If the grains are pre-mixed with binders for castables, the product may fall under a different heading