Alumina Ceramic Support for Catalyst Bed from Mexico
High-alumina ceramic support structures (>65% Al2O3) for industrial catalyst beds in petrochemical processing. Fired refractory goods providing structural integrity at elevated temperatures, HTS 6903.20.00.00.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Supply catalyst manufacturer specifications confirming refractory requirements
• Distinguish from adsorbent alumina via thermal properties documentation
• Declare structural ceramic function over chemical reaction role