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HSN 28184-Digit Heading

HSN 2818: Artificial corundum – GST Rate

HSN 2818 covers artificial corundum, whether or not chemically defined. GST on HSN 2818 is 5% or 18% depending on the conditions listed below (rates effective 22 September 2025). This heading has 6 tariff items, for example 2818 10 00, 2818 20 10 and 2818 20 11.

Chapter 28: Inorganic chemicals, organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes

GST rates as per CBIC Notifications 09/2025 and 10/2025 (Central Tax - Rate), effective 22 September 2025. Last updated: October 2026. Always verify on the official GST portal before filing.

GST Rates for Heading 2818

5%CGST 2.5% + SGST 2.5% / IGST 5%

Thorium oxalate, Enriched KBF4 (enriched potassium fluroborate), Enriched elemental boron, Nuclear fuel

Reference: Schedule I, S. No. 210 (Spec: 28)

5%CGST 2.5% + SGST 2.5% / IGST 5%

Anaesthetics, Potassium Iodate, Iodine, Steam

Reference: Schedule I, S. No. 211 (Spec: 28)

18%CGST 9% + SGST 9% / IGST 18%

All inorganic chemicals [other than those specified in notification No.10/2025- Central Tax (Rate) dated 17th September 2025 or other Schedules of this notification]

Reference: Schedule II, S. No. 35 (Spec: 28)

If none of these descriptions fit your goods, the residual rate is 18% (Schedule II, S. No. 639).

Sub-Headings & Tariff Items Under 2818

Showing 9 sub-classification codes with complete hierarchy descriptions.

2818106-Digit Sub-heading

281810008-Digit Tariff Item

Chain: Inorganic Chemicals, Organic Or Inorganic Compounds Of Precious Metals, Of Rare-Earth Metals, Of Radioactive Elements Or Of Isotopes > Artificial Corundum, Whether Or Not Chemically Defined; Aluminium Oxide; Aluminium Hydroxide > Artificial Corundum, Whether Or Not Chemically Defined > Artificial Corundum, Whether Or Not Chemically Defined

2818206-Digit Sub-heading

281820108-Digit Tariff Item

Chain: Inorganic Chemicals, Organic Or Inorganic Compounds Of Precious Metals, Of Rare-Earth Metals, Of Radioactive Elements Or Of Isotopes > Artificial Corundum, Whether Or Not Chemically Defined; Aluminium Oxide; Aluminium Hydroxide > Aluminium oxide, other than artificial corundum : > Artificial Corundum, Whether Or Not Chemically Defined; Aluminium Oxide; Aluminium Hydroxide - Aluminium Oxide, Other Than Artificial Corundum : Alumina, Calcined

281820118-Digit Tariff Item

Chain: Inorganic Chemicals, Organic Or Inorganic Compounds Of Precious Metals, Of Rare-Earth Metals, Of Radioactive Elements Or Of Isotopes > Artificial Corundum, Whether Or Not Chemically Defined; Aluminium Oxide; Aluminium Hydroxide > Aluminium oxide, other than artificial corundum : > Metallurgical grade, conforming to IS 17441

281820198-Digit Tariff Item

Chain: Inorganic Chemicals, Organic Or Inorganic Compounds Of Precious Metals, Of Rare-Earth Metals, Of Radioactive Elements Or Of Isotopes > Artificial Corundum, Whether Or Not Chemically Defined; Aluminium Oxide; Aluminium Hydroxide > Aluminium oxide, other than artificial corundum : > Non- metallurgical grade, conforming to IS 17441

281820908-Digit Tariff Item

2818306-Digit Sub-heading

281830008-Digit Tariff Item

Other Headings in Chapter 28

HSN 2801

Fluorine, Chlorine, Bromine And Iodine

HSN 2802

Sulphur, Sublimed Or Precipitated; Colloidal Sulphur

HSN 2803

Carbon (Carbon Blacks And Other Forms Of Carbon Not Elsewhere Specified Or Included)

HSN 2804

Hydrogen, Rare Gases And Other Non-Metals

HSN 2805

Alkali Or Alkaline-Earth Metals, Rare-Earth Metals,Scandium And Yttrium, Whether Or Not Intermixed Or Interalloyed, Mercury

HSN 2806

Hhydrogen Chloride (Hydrochloric Acid), Chlorosulphuric Acid

HSN 2807

Sulphuric Acid; Oleum

HSN 2808

Nitric Acid; Sulphonitric Acids

HSN 2809

Diphosphorus Pentaoxide; Phosphoric Acid; Polyphosphoric Acids, Whether Or Not Chemically Defined

HSN 2810

Oxides Of Boron, Boric Acids

HSN 2811

Other Inorganic Acids And Other Inorganic Oxygen Compounds Of Non-Metals

HSN 2812

Halides And Halide Oxides Of Non-Metals

HSN 2813

Sulphides Of Non-Metals; Commercial Phosphorus Trisulphide

HSN 2814

Ammonia, Anhydrous Or In Aqueous Solution

HSN 2815

Sodium Hydroxide (Caustic Soda), Potassium Hydroxide (Caustic Potash), Peroxides Of Sodium Or Potassium

HSN 2816

Hydroxide And Peroxide Of Magnesium; Oxides, Hydroxides And Peroxides, Of Strontium Or Barium

HSN 2817

Zinc Oxide; Zinc Peroxide

HSN 2819

Chromium Oxides And Hydroxides

HSN 2820

Manganese Oxides

HSN 2821

IRON OXIDES AND HYDROXIDES; EARTH COLOURS CONTAINING 70% OR MORE BY WEIGHT OF COMBINED IRON EVALUATED AS Fe2O3

HSN 2822

Cobalt Oxides And Hydroxides; Commercial Cobalt Oxides

HSN 2823

Titanium Oxides

HSN 2824

Lead Oxides; Red Lead And Orange Lead

HSN 2825

Hydrazine And Hydroxylamine And Their Inorganic Salts; Other Inorganic Bases; Other Metal Oxides, Hydroxides And Peroxides

HSN 2826

Fluorides, Fluorosilicates, Fluoroaluminates And Other Complex Fluorine Salts

HSN 2827

Chlorides, Chloride Oxides And Chloride Hydroxides, Bromides And Bromide Oxides, Iodides And Iodide Oxides

HSN 2828

Hypochlorites ; Commercial Calcium Hypochlorites; Chlorites; Hypobromites

HSN 2829

Chlorates And Perchlorates, Bromates And Perbromates, Iodates And Periodates

HSN 2830

Sulphides; Polysulphides, Whether Or Not Chemically Defined

HSN 2831

Dithionites And Sulphoxylates

HSN 2832

Sulphites; Thiosulphates

HSN 2833

Sulphates; Alums; Peroxosulphates (Persulphates)

HSN 2834

Nitrites; Nitrates

HSN 2835

Phosphinates (Hypophosphites), Phosphonates (Phosphites) And Phosphates, Polyphosphates Whether Or Not Chemically Defined

HSN 2836

Carbonates; Peroxocarbonates (Percarbonates); Commercial Ammonium Carbonate Containing Ammonium Carbamate

HSN 2837

Cyanides, Cyanide Oxides And Complex Cyanides

HSN 2838

Fulminates, Cyanates And Thiocyanates - Fulminates, Cyanates And Thiocyanates : Fulminates

HSN 2839

Silicates, Commercial Alkali Metal Silicates

HSN 2840

Borates, Peroxoborates (Perborates)

HSN 2841

Salts Of Oxometallic Or Peroxometallic Acids

HSN 2842

Other Salts Of Inorganic Acids Or Peroxoacids, (Including Aluminosilicates, Whether Or Not Chemically Defined), Other Than Azides

HSN 2843

Colloidal Precious Metals; Inorganic Or Organic Compounds Of Precious Metals, Whether Or Not Chemically Defined; Amalgams Of Precious Metals

HSN 2844

Radioactive Chemical Elements And Radioactive Isotopes (Including The Fissile Or Fertile Chemical Elements And Isotopes) And Their Compounds; Mixtures And Residues Containing These Products

HSN 2845

Isotopes Other Than Those Of Heading 2844; Compounds, Inorganic Or Organic, Of Such Isotopes, Whether Or Not Chemically Defined

HSN 2846

Compounds, Inorganic Or Organic, Of Rare-Earth Metals, Of Yttrium Or Of Scandium Or Of Mixtures Of These Metals

HSN 2847

Hydrogen Peroxide, Whether Or Not Solidified With Urea

HSN 2848

Phosphides, Whether Or Not Chemically Defined, Excluding Ferrophosphorus

HSN 2849

Carbides, Whether Or Not Chemically Defined

HSN 2850

Hydrides, Nitrides, Azides, Silicides And Borides, Whether Or Not Chemically Defined, Other Than Compounds Which Are Also Carbides Of Heading 2849

HSN 2851

HSN 2852

Inorganic Or Organic Compounds Of Mercury, Whether Or Not Chemically Defined, Excluding Amalgams

HSN 2853

Phosphides, Whether Or Not Chemically Defined,Excluding Ferrophosphorus, Other Inorganic Compounds (Including Distilled Or Conductivity Water And Water Of Similar Purity), Liquid Air (Whether Or Not Rare Gases Have Been Removed), Compressed Air, Amalgams, Other Than Amalgams Of Precious Metals

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