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AF Sodalite Nepheline Syenite from Mexico

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 — Mexico → United States

10%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

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