Chapter 2504 — Customs Tariff Headings
Products classified under Tariff item 25.04
Battery Anode Graphite Flakes -80+100 Mesh
Natural flake graphite sized -80+100 mesh purified for lithium battery anode precursor. This product is in flake form and has been only mechanically processed, such as crushing and screening, which is allowed under Chapter 25 Note 1.
2504.10.00Coated Graphite Flakes for Conductive Plastics
Natural graphite flakes coated with resin for conductive plastic compounds. The base natural graphite flake remains the primary classification, and the coating does not change the essential character, so it falls under this tariff item for natural graphite in powder or flakes.
2504.10.00Crystalline Graphite Flakes 100 Mesh
High-purity crystalline graphite flakes ground to 100 mesh particle size, used primarily in lubricants and refractories. This product is in flake form, not dust, and is a natural graphite product that has only been crushed and ground, which is permitted under Chapter 25 Note 1.
2504.10.00Crystalline Graphite Flakes +50 Mesh Industrial
Large crystalline graphite flakes +50 mesh for foundry applications and steelmaking. This natural graphite is in flake form and has been only mechanically processed, fitting the tariff item for natural graphite in powder or flakes.
2504.10.00Crystalline Graphite Flakes for Lubricants 20-50 Mesh
Coarse 20-50 mesh crystalline flakes designed for dry lubricant formulations in industrial applications. This natural graphite product is in flake form and has been only crushed and screened, which is consistent with the processing allowed under Chapter 25 Note 1.
2504.10.00Expandabond Graphite Flakes for Gaskets
Acid-intercalated expandable graphite flakes that expand when heated, used in gasket production. The intercalation does not constitute a chemical transformation that changes the product's classification, so it remains natural graphite in flake form under this tariff item.
2504.10.00Flake Graphite Powder -100 Mesh for Batteries
Spherical-processed flake graphite powder -100 mesh optimized for lithium-ion battery anodes. Despite the processing, it retains natural flake morphology and is classified as natural graphite powder under this tariff item.
2504.10.00Foundry Graphite Additive Flakes 30-50 Mesh
Coarse natural graphite flakes 30-50 mesh used as carbon additive in iron foundries. This natural graphite is in flake form and has been only mechanically processed, fitting the tariff item for natural graphite in powder or flakes.
2504.10.00High-Purity Crystalline Flake Graphite +50 Mesh
Premium +50 mesh crystalline graphite flakes with >99% fixed carbon, sourced from Madagascar deposits for electronics and friction materials. This natural graphite is in flake form and has been only mechanically processed, fitting the tariff item for natural graphite in powder or flakes.
2504.10.00High Purity Natural Graphite -500 Mesh
99%+ carbon natural graphite powder -500 mesh for electronics and nuclear applications. This is a natural graphite product in powder form that has been only mechanically processed, fitting the tariff item for natural graphite in powder or flakes.
2504.10.00Lubricant Grade Graphite Powder 200 Mesh
Natural graphite powder 200 mesh with low ash content for grease and oil lubricant formulations. This product is in powder form and has been only mechanically processed, fitting the tariff item for natural graphite in powder or flakes.
2504.10.00Metallurgical Graphite Flakes -10+40 Mesh
Natural crystalline graphite flakes -10+40 mesh for steel desulfurization. This natural graphite is in flake form and has been only mechanically processed, fitting the tariff item for natural graphite in powder or flakes.
2504.10.00Micronized Natural Graphite Powder -10 Micron
Ultra-fine micronized natural graphite powder averaging 10 microns for powder metallurgy and coatings. This product is in powder form and has been only mechanically processed, fitting the tariff item for natural graphite in powder or flakes.
2504.10.00Natural Crystalline Graphite Flakes 50-80 Mesh
Medium-coarse crystalline flake graphite in 50-80 mesh range, ideal for battery anodes and metallurgical additions. This natural graphite is in flake form and has been only crushed and screened, which is allowed under Chapter 25 Note 1.
2504.10.00Natural Graphite Flakes 100-200 Mesh
Natural graphite flakes ground to a particle size between 100 and 200 mesh, used as a lubricant additive and in battery production. This product is in powder or flake form, which is covered by tariff item 2504.10.00, and has not undergone any processing beyond mechanical grinding.
2504.10.00Purified Expandable Graphite Powder 300 Mesh
Purified expandable graphite powder at 300 mesh, used in fire retardant intumescent coatings. The product is a natural graphite powder that has been purified and processed to expand upon heating, but remains in powder form, fitting tariff item 2504.10.00.
2504.10.00Synthetic Graphite Powder -325 Mesh
High-purity natural graphite powder at -325 mesh, used for refractories and metallurgy. This fine powder form of natural crystalline graphite is classified under tariff item 2504.10.00 as it is in powder form and has not been subjected to processing beyond grinding or screening.
2504.10.00Thermal Management Graphite Powder 15 Micron
High thermal conductivity natural graphite powder at 15 microns, used in thermal interface materials (TIMs) and heat sinks. This powdered natural graphite is classified under tariff item 2504.10.00, as it is in powder form and has only undergone mechanical processing.
2504.10.00Vein Crystalline Flake Graphite -100 Mesh
Vein-type crystalline graphite flakes at -100 mesh from Sri Lankan mines, valued for thermal conductivity in composites. This natural graphite is in flake form and has been only mechanically processed, fitting the tariff item for natural graphite in powder or flakes.
2504.10.00Vein Graphite Flakes 80 Mesh Madagascar Origin
Premium vein graphite flakes from Madagascar, sized to 80 mesh for high-end lubricant applications. This natural graphite in flake form is classified under tariff item 2504.10.00, distinguished by its high crystallinity and thermal conductivity, and has not been processed beyond sizing.
2504.90.00Amorphous Natural Graphite Lumps
Irregular lumps of amorphous (microcrystalline) natural graphite mined from metamorphic deposits. These lumps are in a crude or crushed state, not processed beyond washing, crushing, or grinding, and are not in flake or powder form, thus falling under 'other' natural graphite.
2504.90.00High-Purity Lump Natural Graphite
Purified natural graphite lumps with over 99% carbon content, intended for semiconductor applications. The lumps are unworked and not processed beyond washing or crushing, so they remain classified as 'other' natural graphite, even with high purity.
2504.90.00Micronized Natural Graphite Flakes
Micronized natural graphite flakes are finely milled particles (5-10 microns) that retain their flake structure. They fall under tariff item 2504.90.00 as 'other' natural graphite, since they are not classified as powder or crystalline powder under other headings.
2504.90.00Natural Flake Graphite Powder
Natural flake graphite powder is a fine powder derived from natural flake graphite, used in lubricants, pencils, and refractories. It is classified under tariff item 2504.90.00 as 'other' natural graphite, distinct from powdered (2504.10) or lump forms.
2504.90.00Natural Graphite Block Scrap
Recovered scrap blocks from natural graphite machining, clean and unsintered. These blocks are in a crude or waste state, not processed beyond crushing or grinding, and are not powder or flake, so they fall under 'other' natural graphite.
2504.90.00Natural Graphite Ore Concentrate
Flotation-concentrated natural graphite ore at 85-90% carbon content, unsintered. The ore has been concentrated by flotation, a mechanical or physical process allowed by Chapter 25 notes, and is not in powder or flake form, so it falls under 'other' natural graphite.
2504.90.00Vein Natural Graphite Crystals
Large crystalline vein graphite chunks, a high-purity form from Sri Lankan deposits. These chunks are in a crude state, not powdered or flaked, and are not processed beyond washing or crushing, so they fall under 'other' natural graphite.