Vein Natural Graphite Crystals
Large crystalline vein graphite chunks, a high-purity form from Sri Lankan deposits. HTS 2504.90.00.00 covers this 'other' natural graphite variety not powdered or in lumps.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If cut and polished as gem material
Highly crystalline graphite resembling gemstones may classify under Chapter 71 as natural graphite dust or powder, but polished forms shift.
If shaped into grinding wheels
Worked graphite into abrasive forms falls under Chapter 68.
If chemically purified beyond natural state
Purified graphite powders meeting chemical prep criteria go to 3824.
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Import Tips & Compliance
• Include spectrographic analysis showing >95% carbon for vein graphite verification
• Sri Lankan exports require CITES-like documentation; prepare Form 3229 if applicable
• Avoid mixing with flake types in shipments to prevent average classification issues
Related Products under HTS 2504.90.00.00
Natural Flake Graphite Powder
Fine powder derived from natural flake graphite, used in lubricants, pencils, and refractories. Classified under HTS 2504.90.00.00 as 'other' natural graphite, distinct from powdered (2504.10) or lumps (2504.90 but specified as other forms).
Amorphous Natural Graphite Lumps
Irregular lumps of amorphous (microcrystalline) natural graphite mined from metamorphic deposits. Falls under HTS 2504.90.00.00 as 'other' natural graphite not in powder or flake form.
Natural Graphite Ore Concentrate
Flotation-concentrated natural graphite ore at 85-90% carbon content, unsintered. Classified in HTS 2504.90.00.00 as 'other' processed natural graphite.
Micronized Natural Graphite Flakes
Delicately milled natural graphite flakes reduced to 5-10 micron size, retaining flake morphology. HTS 2504.90.00.00 as 'other' not meeting powder definition.
High-Purity Lump Natural Graphite
Purified natural graphite lumps >99% carbon for semiconductor applications. Remains under HTS 2504.90.00.00 as unworked 'other' natural graphite.
Natural Graphite Block Scrap
Recovered scrap blocks from natural graphite machining, clean and unsintered. HTS 2504.90.00.00 for 'other' natural graphite forms.