Alumina Crucible from Mexico
High-purity alumina ceramic crucible used for melting and holding metals or chemicals at high temperatures in laboratories and foundries. Classified under HTS 6903.90.00 as a refractory ceramic good designed to withstand extreme heat without deforming, distinct from building materials in 6901-6902. Fired after shaping from inorganic nonmetallic materials like alumina oxide.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify material composition certification showing >99% alumina to confirm refractory status; ensure firing temperature documentation exceeds 800°C per Chapter 69 notes
• Common pitfall: misclassification as lab glassware under Chapter 70 if not certified fired ceramic