Ground Nepheline Syenite Powder from China
Finely ground nepheline syenite powder derived from igneous rock deposits, primarily composed of nepheline, albite, and microcline feldspar. Classified under HTS 2529.30.0010 as nepheline syenite, used as a functional filler in paints, coatings, and plastics for improving opacity and durability.
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 mineral composition via lab analysis to confirm nepheline syenite content and avoid reclassification as generic feldspar
• Provide geological origin certificates as documentation to distinguish from leucite or other silicates
• Ensure particle size specs match statistical note tolerances to prevent customs disputes on processing level