Ruby Reactive Alumina Powder 99% Al2O3 from China
Reactive-grade ruby alumina powder with 99% Al2O3, fine-ground for sintering into advanced ceramics. Classified under HTS 2818.10.20.10 for ruby color and exceptional purity in pulverized artificial corundum form. Used in electronic substrates and wear-resistant parts.
Duty Rate — China → United States
8.8%
Rate breakdown
9903.88.157.5%Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 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(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Include BET surface area measurements (>10m²/g) verifying reactive grade
• Certify absence of alpha-phase for reactive classification support