Carbonado Diamond Powder Precursor from China
Large carbonado fragments awaiting crushing into industrial diamond powder for wire sawing applications. HTS 7102.29.00.10 specifies these miners' carbonados before powder form (90% through 0.5mm sieve per subheading note). Essential precursor for semiconductor and geological sawing.
Duty Rate — China → United States
37.5%
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)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Pre-crush sieve testing documentation prevents reclassification to 7102.10 powder subheadings
• Specify 'not suitable for gem working' in commercial invoice to reinforce industrial classification
• Watch for CBP challenges on carbonado vs. synthetic cubic boron nitride misidentification