Glass Grade Feldspar Powder from Mexico
Feldspar finely milled to uniform particle size for soda-lime glass production, providing network formers without further refinement. Falls under HTS 2529.10.00.00 as it's crude feldspar, not chemically synthesized.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Test for alkali content variability which affects glass batch chemistry and classification proofs
• Label containers with flash point warnings if fines pose dust explosion risk during handling
• File entry with silica (SiO2) percentages to preempt challenges from overly fine grinding claims