Alumina Crucible from China
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 — China → United States
37.5%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
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