Bort Miners' Diamonds for Saw Blades
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.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | +35.0% | 35% |
| 🇲🇽Mexico | Free | +10.0% | 10% |
| 🇨🇦Canada | Free | +10.0% | 10% |
| 🇩🇪Germany | Free | +10.0% | 10% |
| 🇯🇵Japan | Free | +10.0% | 10% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If in powder form (90% through 0.5mm sieve)
Powdered miners' diamonds are excluded and classified under 7102.10 for unsorted industrial diamond powder.
If alloyed with platinum group metals predominating
Alloys where platinum (broadly defined) predominates by weight fall under heading 7110, per chapter note 5.
If for non-industrial rough diamonds
Diamonds not intended for industrial use, even if rough, go to 7102.39 as other unworked non-industrial.
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Import Tips & Compliance
• 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
Related Products under HTS 7102.29.00.20
Rough Miners' Diamonds for Drilling Bits
Unworked natural diamonds specifically sourced for industrial use in manufacturing drill bits and cutting tools. Classified under HTS 7102.29.0020 as 'other miners' diamonds' due to their role in mining and drilling operations, not suitable for gem purposes. These diamonds are valued for their hardness in abrasive applications.
Rough Octahedral Miners' Diamonds
Natural rough octahedral crystals designated as miners' diamonds for high-pressure drilling in oil and gas exploration. HTS 7102.29.0020 covers these other industrial diamonds due to their unmounted, unworked state and mining-specific application. Ideal for polycrystalline diamond compact production.
Industrial Cleavage Miners' Diamonds
Rough cleavage fragments of miners' diamonds used in geological drilling and core sampling equipment. HTS 7102.29.0020 applies to these other unmounted industrial diamonds optimized for mining exploration. They provide superior cutting performance in harsh subsurface conditions.
Crushed Miners' Diamonds for Abrasive Mining Tools
Coarsely crushed natural miners' diamonds for use in manufacturing abrasive tools for coal and mineral mining. These are unworked, unmounted, and classified under HTS 7102.29.0020 as other industrial miners' diamonds. Their durability supports heavy-duty excavation tasks.
Boart Miners' Diamonds for Tunneling Equipment
Irregular boart diamonds for tunnel boring machine cutters in underground mining operations. These unworked miners' diamonds fall under HTS 7102.29.0020 as other industrial variants. Their toughness excels in rock penetration tasks.