Natural Diamond Lapping Powder from China
Ultra-fine natural diamond powder (0-10 micron) for lapping optical and semiconductor surfaces, meeting 90% through 0.5mm sieve requirement. Falls under HTS 7105.10.0015 as other natural diamond powder, distinct from diamond jewelry or stones.
Duty Rate — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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)
Import Tips
• Include particle size analysis report; importers often fail sieve compliance leading to duty disputes
• Differentiate from synthetic via gemological certification to prevent Chapter 71 misclassification
• Avoid packaging as 'abrasive paste' which could shift to heading 6805; declare as pure powder