AF Sodalite Nepheline Syenite from Canada
AF-grade nepheline syenite containing sodalite inclusions, used in low-expansion glass-ceramics. Natural mineral product under HTS 2529.30.0010, distinguished by inclusion analysis.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Inclusion microscopy reports essential to document sodalite content
• Thermal expansion certificates support glass end-use claims
• Segregate from standard grades to prevent averaging duties