Bauxite-Derived Calcined Mullite from Canada
Bauxite-derived calcined mullite is produced by calcining bauxite to form the mullite phase, used in abrasive refractories. HTS 2508.60.00.00 covers this as calcined mullite distinct from raw bauxite ores.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Include phase analysis showing predominant mullite crystallinity vs. remaining corundum
• Distinguish from raw bauxite via calcination certificates to avoid 2606 classification