Calcined Zirconia from Zircon from China
Thermal plasma dissociated ZrO2 from zircon feedstock. Chemically defined zirconium dioxide qualifies for HTS 2825.60.00 post-calcination.
Duty Rate — China → United States
28.7%
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)
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• XRF confirming >99% ZrO2 post-plasma treatment differentiates from zircon
• Calcination temperature records (2200°C+) prove complete ZrSiO4 dissociation
• Free silica content <0.1% analysis prevents mineral classification