Alpha Alumina Catalyst Support from Canada
Alpha-phase aluminum oxide spheres used as inert support for petroleum refining catalysts. HTS 2818.20.00.00 applies to this chemically defined compound other than artificial corundum.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Include XRD analysis confirming alpha-phase crystal structure
• Document porosity and crush strength for catalyst-grade verification
• Ensure no active catalytic metals present to avoid heading 3815 classification