Bort Miners' Diamonds for Saw Blades from China
Crushed and irregular bort diamonds classified as miners' diamonds for embedding in industrial saw blades used in stone cutting. Falls under HTS 7102.29.0020 as other unmounted, unworked industrial diamonds specifically for mining tools. Their low clarity makes them ideal for high-wear abrasive applications.
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
• Provide lab assays confirming bort quality and industrial grade to prevent misclassification as gem material
• Use proper packing to avoid damage; declare as 'industrial miners' diamonds' explicitly on commercial invoice
• Watch for pitfalls in alloy mixtures; if clad or sintered beyond 2% precious metal rules, classification may change