Cobaltous Carbonate from China
Though primarily under 2836, basic or commercial cobalt carbonates not fitting pure forms classify here as cobalt oxide equivalents. Used in porcelain glazes; chemically defined per Chapter notes.
Duty Rate — China → United States
25.1%
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
• Cross-check against 2836.50 for pure carbonates; use chemical analysis
• Label as 'not for human consumption' to avoid food additive scrutiny
• Declare CAS number (10048-94-3) accurately for customs matching