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HSN Codes and GST Rates of Chapter 28

INORGANIC CHEMICALS; ORGANIC OR INORGANIC COMPOUNDS OF PRECIOUS METALS, OF RARE-EARTH METALS, OF RADIOACTIVE ELEMENTS OR OF ISOTOPES


(HSN Codes as per First Schedule To Customs Tariff Act, 1975)

HSN Code HSN Description GST Rate

Chapter 28

INORGANIC CHEMICALS; ORGANIC OR INORGANIC COMPOUNDS OF PRECIOUS METALS, OF RARE-EARTH METALS, OF RADIOACTIVE ELEMENTS OR OF ISOTOPES

I. CHEMICAL ELEMENTS

2801

Fluorine, chlorine, bromine and iodine

28011000

- Chlorine

28012000

- Iodine

280130

- Fluorine; bromine:

28013010

--- Fluorine

28013020

--- Bromine

2802

Sulphur, sublimed or precipitated; colloidal sulphur

280200

- Sulphur, sublimed or precipitated; colloidal sulphur:

28020010

--- Sublimed sulphur

28020020

--- Precipitated sulphur

28020030

--- Colloidal sulphur

2803

Carbon (carbon blacks and other forms of carbon not elsewhere specified or included)

280300

- Carbon (carbon blacks and other forms of carbon not elsewhere specified or included) :

28030010

--- Carbon blacks

28030020

--- Acetylene black

28030090

--- Other

2804

Hydrogen, rare gases and other non-metals

28041000

- Hydrogen

- Rare gases:

28042100

-- Argon

280429

-- Other:

28042910

--- Helium

28042990

--- Other

28043000

- Nitrogen

280440

- Oxygen:

28044010

--- Medicinal grade

28044090

--- Other

280450

- Boron; tellurium:

28045010

--- Boron 1

28045020

--- Tellurium

- Silicon :

28046100

-- Containing by weight not less than 99.99% of silicon

28046900

-- Other

280470

- Phosphorus :

28047010

--- Phosphorus, black

28047020

--- Phosphorus, red

28047030

--- Phosphorus, white or yellow

28048000

- Arsenic

28049000

- Selenium

2805

Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury

- Alkali or alkaline-earth metals :

28051100

-- Sodium

28051200

-- Calcium

28051900

-- Other

28053000

- Rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed

28054000

- Mercury

II. INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS OF NON-METALS

2806

Hydrogen chloride (Hydrochloric Acid); Chlorosulphuric Acid

28061000

- Hydrogen chloride (hydrochloric acid)

28062000

- Chlorosulphuric acid

2807

- Sulphuric acid; oleum

280700

Sulphuric acid; oleum :

28070010

--- Sulphuric acid

28070020

--- Oleum

2808

Nitric acid; sulphonitric acids

280800

- Nitric acid; sulphonitric acids :

28080010

--- Nitric acid

28080020

--- Sulphonitric acids

2809

Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined

28091000

- Diphosphorus pentaoxide

280920

- Phosphoric acid and polyphosphoric acids;

28092010

--- Phosphoric acid

28092020

--- Polyphosphoric acids

2810

Oxides of boron; boric acids

- Oxides of boron; boric acids :

28100010

--- Oxides of boron

28100020

--- Boric acids

2811

Other inorganic acids and other inorganic oxygen compounds of non-metals

- Other inorganic acids :

28111100

- Hydrogen fluoride (hydrofluoric acid)

28111200

-- Hydrogen cyanide (hydrocyanic acid)

281119

-- Other:

28111920

--- Hypophosphorus acid (phosphinic acid)

28111930

--- Acids of arsenic

28111940

--- Sulphonic acid

28111990

--- Other

- Other inorganic oxygen compounds of non-metals :

281121

-- Carbon dioxide:

28112110

--- Dry ice

28112190

--- Other

28112200

-- Silicon dioxide

281129

-- Other:

28112910

--- Arsenic pentaoxide

28112920

--- Arsenic trioxide

28112930

--- Nitrous oxide

28112940

--- Carbon monoxide

28112950

--- Sulphur trioxide (sulphuric anhydride)

28112990

--- Other

III. HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS

2812

Halides and halide oxides of non-metals

- Chlorides and chloride oxides :

28121100

-- Carbonyl dichloride (phosgene)

28121200

-- Phosphorous oxychloride

28121300

-- Phosphorous trichloride

28121400

-- Phosphorous pentachloride

28121500

-- Sulphur monochloride

28121600

-- Sulphur dichloride

28121700

-- Thionyl chloride

281219

-- Other:

28121910

--- Sulpur oxychloride

28121920

--- Silicon tetrachloride

28121930

--- Arsenous trichloride

28121990

--- Other

28129000

- Other

2813

Sulphides of non-metals; commercial phosphorus trisulphide

28131000

- Carbon disulphide

281390

- Other:

28139010

--- Arsenic disulphide (artificial)

28139020

--- Commercial phosphorus trisulphide

28139090

--- Other

IV. INORGANIC BASES AND OXIDES, HYDROXIDES AND PEROXIDES OF METALS

2814

Ammonia, anhydrous or in aqueous solution

28141000

- Anhydrous ammonia

28142000

- Ammonia in aqueous solution

2815

Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium

- Sodium hydroxide (caustic soda):

281511

-- Solid:

28151110

--- Flakes

28151190

--- Other

28151200

-- In aqueous solution (soda lye or liquid soda)

28152000

- Potassium hydroxide (caustic potash)

28153000

- Peroxides of sodium or potassium

2816

Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium

281610

- Hydroxide and peroxide of magnesium :

28161010

--- Hydroxide of magnesium

28161020

--- Peroxide of magnesium

28164000

- Oxides, hydroxides and peroxides, of strontium or barium

2817

Zinc oxide; zinc peroxide

281700

- Zinc oxide; zinc peroxide:

28170010

--- Zinc oxide

28170020

--- Zinc peroxide

2818

Artificial corundum, whether or not chemically defined; aluminium oxide; aluminium hydroxide

28181000

- Artificial corundum, whether or not chemically defined

281820

- Aluminium oxide, other than artificial corundum :

--- Alumina, calcined:

28182011

---- Metallurgical grade, conforming to IS 17441

28182019

---- Non-metallurgical grade, conforming to IS 17441

28182090

--- Other

28183000

- Aluminium hydroxide

2819

Chromium oxides and hydroxides

28191000

- Chromium trioxide

28199000

- Other

2820

Manganese oxides

28201000

- Manganese dioxide

28209000

- Other

2821

Iron oxides and hydroxides; earth colours containing 70% or more by weight of combined iron evaluated as Fe2O3

282110

- Iron oxides and hydroxides :

28211010

--- Iron oxides

28211020

--- Iron hydroxides

28212000

- Earth colours

2822

Cobalt oxides and hydroxides; commercial cobalt oxides

282200

- Cobalt oxides and hydroxides; commercial cobalt oxides :

28220010

--- Cobalt oxides

28220020

--- Cobalt hydroxides

28220030

--- Commercial cobalt oxides

2823

Titanium oxides

282300

- Titanium oxides:

28230010

--- Titanium dioxide

28230090

--- Other

2824

Lead oxides; red lead and orange lead

282410

- Lead monoxide (litharge, massicot):

28241010

--- Litharge

28241020

--- Massicot

28249000

- Other

2825

Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides

282510

- Hydrazine and hydroxylamine and their inorganic salts :

28251010

--- Hydrazine anhydrous

28251020

--- Hydrazine hydrate

28251030

--- Hydrazine sulphate

28251040

--- Hydroxylamine sulphate

28251090

--- Other

28252000

- Lithium oxide and hydroxide

282530

- Vanadium oxides and hydroxides :

28253010

--- Vanadium pentaoxide flakes

28253090

--- Other

28254000

- Nickel oxides and hydroxides

28255000

- Copper oxides and hydroxides

282560

- Germanium oxides and zirconium dioxide:

28256010

--- Germanium oxides

28256020

--- Zirconium dioxide

282570

- Molybdenum oxides and hydroxides:

28257010

--- Molybdenum trioxide

28257020

--- Molybdic acid

28257090

--- Other

28258000

- Antimony oxides

282590

- Other:

28259010

--- Tin oxide

28259020

--- Cadmium oxide

28259030

[***]

28259040

--- Calcium hydroxide

28259050

--- Ammonium hydroxide

28259090

--- Other

V. SALTS AND PEROXYSALTS, OF INORGANIC ACIDS AND METALS

2826

Fluorides; fluorosilicates, fluoroalu-minates and other complex fluorine salts

- Fluorides:

28261200

-- Of aluminium

282619

-- Other:

28261910

--- Magnesium fluoride

28261990

--- Other

28263000

- Sodium hexafluoroaluminate (synthetic cryolite)

28269000

- Other

2827

Chlorides, chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides

28271000

- Ammonium chloride

28272000

- Calcium chloride

- Other chlorides:

28273100

-- Of magnesium

28273200

-- Of aluminium

28273500

-- Of nickel

282739

-- Other:

28273910

[***]

28273920

--- Mercurous chloride

28273930

--- Strontium chloride

28273940

--- Curprous chloride

28273990

--- Other

- Chloride oxides and chloride hydroxides:

282741

-- Of copper:

28274110

--- Copper oxychloride

28274190

--- Other

28274900

-- Other

- Bromides and bromide oxides:

282751

-- Bromides of sodium or of potassium :

28275110

--- Bromides of sodium

28275120

--- Bromides of potassium

282759

-- Other:

28275910

--- Magnesium bromide

28275990

--- Other

282760

- Iodides and iodide oxides:

28276010

--- Potassium iodide

28276020

--- Sodium iodide

28276090

--- Other

2828

Hypochlorites; commercial calcium hypochlorites; chlorites; hypobromites

282810

- Commercial calcium hypochlorite and other calcium hypochlorites:

28281010

--- Commercial calcium hypochlorite (bleaching paste or powder)

28281090

--- Other

282890

- Other:

--- Sodium hypochlorites:

28289011

---- Bleaching paste or powder

28289019

---- Other

28289020

--- Potassium hypochlorites

28289030

--- Sodium chlorite

28289040

--- Aluminium chlorite

28289050

--- Hypobromites

28289060

--- Bleaching paste or powder of other hypochlorites

28289090

--- Other

2829

Chlorates and perchlorates; bromates and perbromates; iodates and periodates

- Chlorates:

28291100

-- Of sodium

282919

-- Other:

28291910

--- Barium chlorate

28291920

--- Potassium chlorate

28291930

--- Magnesium chlorate

28291990

--- Other

282990

- Other:

28299010

--- Perchlorates

28299020

--- Bromates and perbromates

28299030

--- Iodates 1 and periodates

2830

Sulphides; polysulphides, whether or not chemically defined

28301000

- Sodium sulphides

283090

- Other :

28309010

--- Sulphides

28309020

--- Polysulphides

2831

Dithionites and sulphoxylates

283110

- Of sodium:

28311010

--- Sodium dithionites (sodium hydrosulphite)

28311020

--- Sodium sulphoxylates (including sodium formaldehyde sulphoxylate)

283190

- Other:

28319010

--- Dithionites

28319020

--- Sulphoxylates

2832

Sulphites; thiosulphates

283210

- Sodium sulphites:

28321010

--- Sodium bisulphite

28321020

--- Sodium hydrosulphite

28321090

--- Other

283220

- Other sulphites:

28322010

--- Potassium metabisulphite

28322020

--- Magnesium sulphite

28322090

--- Other

283230

- Thiosulphates:

28323010

--- Sodium thiosulphate (hypo)

28323020

--- Magnesium thiosulphate

28323090

--- Other

2833

Sulphates; alums; peroxosulphates (persulphates)

- Sodium sulphates:

28331100

-- Disodium sulphate

283319

-- Other:

28331910

--- Sodium hydrogen sulphate (acid sulphate)

28331920

--- Sodium pyrosulphate

28331990

--- Other

- Other sulphates:

28332100

-- Of magnesium

283322

-- Of aluminium:

28332210

--- Aluminium sulphate (iron free)

28332290

--- Other

28332400

-- Of nickel

28332500

-- Of copper

28332700

-- Of barium

283329

-- Other:

28332910

--- Ferrous sulphate

28332920

[***]

28332930

--- Quinidine sulphate

28332940

--- Manganese sulphate

28332950

--- Strontium sulphate

28332990

--- Other

283330

- Alums:

28333010

--- Ammonium alum

28333020

--- Ferric ammonium alum

28333030

--- Potash alum

28333090

--- Other

28334000

- Peroxosulphates (persulphates)

2834

Nitrites; nitrates

283410

- Nitrites:

28341010

--- Sodium nitrite

28341090

--- Other

- Nitrates:

28342100

-- Of potassium

283429

-- Other:

28342910

--- Strontium nitrate

28342920

--- Magnesium nitrate

28342930

--- Barium nitrate

28342990

--- Other

2835

Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined

283510

- Phosphinates (hypophosphites) and phosphonates (phosphites):

28351010

--- Calcium hypophosphite

28351020

--- Magnesium hypophosphite

28351090

--- Other

- Phosphates:

28352200

-- Of mono-or disodium

28352400

-- Of potassium

28352500

-- Calcium hydrogenorthophosphate ("dicalcium phosphate")

283526

-- Other phosphates of calcium :

28352610

--- Calcium monobasic phosphate

28352620

--- Calcium tribasic phosphate

28352690

--- Other

283529

-- Other:

28352910

--- Magnesium phosphate, monobasic

28352920

--- Magnesium phosphate, dibasic

28352930

--- Magnesium phosphate, tribasic

28352940

--- Sodium hexametaphosphate

28352990

--- Other

- Polyphosphates:

28353100

-- Sodium triphosphate (sodium tripolyphosphate)

28353900

-- Other

2836

Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate

283620

- Disodium carbonate:

28362010

--- Disodium carbonate, dense

28362020

--- Disodium carbonate, light

28362090

--- Other

28363000

- Sodium hydrogencarbonate (sodium bicarbonate)

28364000

- Potassium carbonates

28365000

- Calcium carbonate

28366000

- Barium carbonate

- Other:

28369100

-- Lithium carbonates

28369200

-- Strontium carbonate

283699

-- Other:

28369910

--- Percarbonates

28369920

--- Magnesium carbonate

28369930

--- Aluminium bicarbonate

28369990

--- Other

2837

Cyanides, cyanide oxides and complex cyanides

- Cyanides and cyanide oxides :

28371100

-- Of sodium

283719

-- Other:

28371910

--- Potassium cyanide

28371920

--- Double cyanide of potassium and sodium

28371990

--- Other

283720

- Complex cyanides:

28372010

--- Ammonium sulphocyanide

28372020

--- Potassium ferricyanide

28372030

--- Potassium ferrocyanide

28372040

--- Sodium ferrocyanide

28372050

--- Sodium nitroprusside (sodium nitroferricyanide)

28372090

--- Other

2838

[***]

2839

Silicates; commercial alkali metal silicates

- Of sodium:

28391100

-- Sodium metasilicates

28391900

-- Other

283990

- Other:

28399010

--- Magnesium trisilicate

28399090

--- Other

2840

Borates; peroxoborates (perborates)

- Disodium tetraborate (refined borax):

28401100

-- Anhydrous

28401900

-- Other

284020

- Other borates:

28402010

--- Magnesium borate

28402090

--- Other

28403000

- Peroxoborates (perborates)

2841

Salts of oxometallic or peroxometallic acids

28413000

- Sodium dichromate

284150

- Other chromates and dichromates; peroxochromates :

28415010

--- Sodium chromate

28415090

--- Other

- Manganites, manganates and permanganates :

28416100

-- Potassium permanganate

28416900

-- Other

284170

- Molybdates:

28417010

--- Aluminium molybdate

28417020

--- Sodium molybdate

28417090

--- Other

284180

- Tungstates (wolframates):

28418010

--- Sodium tungstate

28418020

--- Magnesium tungstate

28418090

--- Other

28419000

- Other

2842

Other salts of inorganic acids or peroxoacids, (including alumino-silicates, whether or not chemically defined), other than azides

28421000

- Double or complex silicates, including aluminosilicates, whether or not chemically defined

284290

- Other:

28429010

--- Arsenites and arsenates

28429020

--- Bichromates and dichromates

28429090

--- Other

VI. MISCELLANEOUS

2843

Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals

284310

- Colloidal precious metals:

28431010

--- Of gold

28431020

--- Of silver

28431090

--- Other

- Silver compounds:

28432100

-- Silver nitrate

28432900

-- Other

28433000

- Gold compounds

284390

- Other compounds; amalgams:

--- Other compounds:

28439011

---- Sodium aurous thiosulphate

28439012

---- Noble metal solutions of platinum, rhodium and palladium

28439019

---- Other

28439020

--- Amalgams

2844 1

Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes) and their compounds; mixtures and residues containing these products

28441000

- Natural uranium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing natural uranium or natural uranium compounds

28442000

- Uranium enriched in U 235 and its compounds; plutonium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing uranium enriched in U 235 , plutonium or compounds of these products

284430

- Uranium depleted in U235 and its compounds; thorium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing uranium depleted in U235, thorium or compounds of these products :

28443010

--- Uranium depleted in U 235 and thorium and their alloys, unwrought or wrought and compounds thereof

--- Compounds of thorium or of uranium depleted in U 235 :

28443021

---- Thorium oxide 1

28443022

---- Thorium hydroxide

28443023

---- Thorium nitrate

28443029

---- Other

28443030

--- Waste and scrap of uranium depleted in U 235 or of thorium

28443090

--- Other

- Radioactive elements and isotopes and compounds other than those of sub-heading 284410, 284420 or 284430; alloys, dispersions (including cermets), ceramic products and mixtures

containing these elements, isotopes or compounds; radioactive residues:

28444100

-- Tritium and its compounds; alloys, dispersions (including cermets), ceramic

products and mixtures containing tritium or its compounds

28444200

-- Actinium-225, actinium-227, califor-nium-253, curium-240, curium-241, curium-242, curium-243, curium-244, einsteinium-253, einsteinium-254, gadolinium-148, polonium-208, polo-nium-209, polonium-210, radium-223, uranium-230 or uranium-232, and their compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing these elements or compounds

28444300

-- Other radioactive elements and iso-topes and compounds; other alloys, dispersions (including cermets), ceramic products and mixtures containing these elements, isotopes or compounds

28444400

-- Radioactive residues

28445000

- Spent (irradiated) fuel elements (cartridges) of nuclear reactors

2845

Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined

28451000

- Heavy water (deuterium oxide)

28452000

- Boron enriched in boron-10 and its compounds

28453000

- Lithium enriched in lithium-6 and its compounds

28454000

- Helium-3

284590

- Other:

28459010

--- Nuclear fuels not elsewhere included or specified

28459090

--- Other

2846

Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium or of mixtures of these metals

284610

- Cerium compounds:

28461010

--- Cerium oxides

28461090

--- Other

284690

- Other:

28469010

--- Rare-earth oxides not elsewhere included or specified

28469020

--- Rare-earth fluorides not elsewhere included or specified

28469030

--- Rare-earth chlorides not elsewhere included or specified

28469090

--- Other

28470000

Hydrogen peroxide, whether or not solidified with urea

2848

[***]

2849

Carbides, whether or not chemically defined

28491000

- Of calcium

284920

- Of silicon :

28492010

--- Carborundum

28492090

--- Other

284990

- Other:

28499010

--- Boron carbide

28499020

--- Tungsten carbide

28499090

--- Other

2850

Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849

285000

- Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849:

28500010

--- Hydrides

28500020

--- Nitrides

28500030

--- Azides

--- Silicides:

28500041

---- Of calcium

28500049

---- Other

28500050

--- Borides

2851

[***]

2852

Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams

28521000

- Chemically defined

28529000

- Other

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

28531000

- Cyanogen chloride (chlorcyan)

285390

- Other:

28539010

--- Distilled or conductivity water and water of similar purity

28539020

--- Liquid air, whether or not rare gases have been removed 1

28539030

--- Compressed air

28539040

--- Amalgams, other than of precious metals

28539090

--- Other

24
Apr
S
M
T
W
T
F
S
24 Apr

☑ Quarterly | GSTR-3B

GSTR-3B for the Quarter Jan - Mar 2025 (QRMP Taxpayers < 5 Cr - Rule 61) - Category II States.  

* State Category II - Himachal Pradesh, Punjab, Uttarakhand, Haryana, Rajasthan, Uttar Pradesh, Bihar, Sikkim, Arunachal Pradesh, Nagaland, Manipur, Mizoram, Tripura, Meghalaya, Assam, West Bengal, Jharkhand or Odisha or the Union territories of Jammu and Kashmir, Ladakh, Chandigarh and Delhi.

25 Apr

☑ Half-Yearly | ITC-04

ITC-04 for the half year (Oct - Mar 2025) (For taxpayers > 5 Cr. Turnover) - Rule 45.

☑ Annual | ITC-04

ITC-04 for complete FY 2024-25 (For taxpayers <= 5 Cr. Turnover) - Rule 45.

28 Apr

☑ Monthly | GSTR-11

GSTR-11 for the m/o Mar 2025 (Statement of inward supplies by persons having Unique Identification Number (UIN)).

30 Apr

☑ Quarterly | QRMP

Last date for opt-in / opt-out QRMP Scheme for quarter Apr - June 2025 (Rule 61A)