Alumina for Sapphire Crystal Growth from China
High-purity powder for Verneuil process sapphire (artificial corundum) growth, supplied as raw material. HTS 2818.20.00.00 before crystal formation.
Duty Rate — China → United States
0%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Classify powder form only; grown crystals become 7104
• 99.999% purity certificates essential
• Declare non-jewel end-uses like optics if applicable