Indian Sillimanite Sand from Mexico
Beach sand deposit sillimanite from Indian coastal mines, washed and dried to -100+200 mesh. HTS 2508.50.00.00 covers this naturally concentrated sillimanite used in investment casting shells.
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
• Heavy mineral sand separation certificates required; verify monazite removal
• Radioactivity screening mandatory for beach sands (thorium content)
• Dredging method documentation may affect origin claims