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HSN codes in Chapter 28: Inorganic chemicals, organic or inorganic compounds of…

53 headings · 394 tariff items · GST rate of every code

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Chapter 28 of the HSN tariff covers Inorganic chemicals, organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes. It has 53 headings (4-digit codes) and 394 tariff items (8-digit codes), each with its GST rate today. Tap a code to open it in the BooksOn HSN app with its conditions and the CBIC notification entry.

GST rate column: the rates in force on 26 October 2026 (IGST; CGST and SGST are half each). Where a code shows two or more rates, the rate depends on the goods (price, packing, buyer or use): open the code in the app or the GST Rate Finder to see which one fits. Reference only: confirm the rate in the CBIC notification.

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Headings in this chapter

2801 Fluorine, chlorine, bromine and iodine

GST: 5% or 18%

HSN codeDescriptionGST rate
280110Chlorine5% or 18%
28011000Chlorine18%
280120Iodine5% or 18%
28012000Iodine5%
280130Fluorine, bromine5% or 18%
28013010Fluorine18%
28013020Bromine18%

2802 Sulphur, sublimed or precipitated; colloidal sulphur

GST: 5% or 18%

HSN codeDescriptionGST rate
280200Sulphur, sublimed or precipitated, colloidal sulphur5% or 18%
28020010Sublimed sulphur18%
28020020Precipitated sulphur18%
28020030Colloidal sulphur18%

2803 Carbon (carbon blacks and other forms of carbon not elsewhere specified or included)

GST: 5% or 18%

HSN codeDescriptionGST rate
280300Carbon (carbon blacks and other forms of carbon not elsewhere specified or included)5% or 18%
28030010Carbon blacks18%
28030020Acetylene black18%
28030090Other18%

2804 Hydrogen, rare gases and other non-metals

GST: 5% or 18%

HSN codeDescriptionGST rate
280410Hydrogen5% or 18%
28041000Hydrogen18%
280421ARGON5% or 18%
28042100ARGON18%
280429Other5% or 18%
28042910Helium18%
28042990Other18%
280430Nitrogen5% or 18%
28043000Nitrogen18%
280440Oxygen5% or 18%
28044010Medicinal grade5%
28044090Other18%
280450Boron; tellurium5% or 18%
28045010BORON18%
28045020Tellurium18%
280461Containing by weight not less than 99.99% of silicon5% or 18%
28046100Containing by weight not less than 99.99% of silicon18%
280469Other5% or 18%
28046900Other18%
280470Phosphorus5% or 18%
28047010Phosphorus, black18%
28047020Phosphorus, red18%
28047030Phosphorus, white or yellow18%
280480Arsenic5% or 18%
28048000Arsenic18%
280490Selenium5% or 18%
28049000Selenium18%

2805 Alkali or alkaline-earth metals, rare-earth metals,scandium and yttrium, whether or not intermixed or interalloyed, mercury

GST: 5% or 18%

HSN codeDescriptionGST rate
280511Sodium5% or 18%
28051100Sodium18%
280512Calcium5% or 18%
28051200Calcium18%
280519Other5% or 18%
28051900Other18%
280530Rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed5% or 18%
28053000Rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed18%
280540Mercury5% or 18%
28054000Mercury18%

2806 Hhydrogen chloride (hydrochloric acid), chlorosulphuric acid

GST: 5% or 18%

HSN codeDescriptionGST rate
280610Hydrogen chloride (hydrochloric acid)5% or 18%
28061000Hydrogen chloride (hydrochloric acid)18%
280620Chlorosulphuric acid5% or 18%
28062000Chlorosulphuric acid18%

2807 Sulphuric acid; oleum

GST: 5%

HSN codeDescriptionGST rate
280700Sulphuric acid, oleum5%
28070010Sulphuric acid5%
28070020OLEUM5%

2808 Nitric acid; sulphonitric acids

GST: 5%

HSN codeDescriptionGST rate
280800Nitric acid, sulphonitric acids5%
28080010Nitric acid5%
28080020Sulphonitric acids5%

2809 Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined

GST: 5%

HSN codeDescriptionGST rate
280910Diphosphorus pentaoxide5%
28091000Diphosphorus pentaoxide5%
280920Phosphoric acid and polyphosphoric acids5%
28092010Phosporic acid5%
28092020Polyphosphoric acids5%

2810 Oxides of boron, boric acids

GST: 5% or 18%

HSN codeDescriptionGST rate
281000Oxides of boron5% or 18%
28100010Oxides of boron18%
28100020Boric acids18%

2811 Other inorganic acids and other inorganic oxygen compounds of non-metals

GST: 5% or 18%

HSN codeDescriptionGST rate
281111Hydrogen fluoride (hydrofluoric acid)5% or 18%
28111100Hydrogen fluoride (hydrofluoric acid)18%
281112Hydrogen cyanide (hydrocyanic acid )5% or 18%
28111200Hydrogen cyanide (hydrocyanic acid)18%
281119Other5% or 18%
28111910Other inorganic acids and other inorganic oxygen compounds of non-metals - other inorganic acids : - other : hydrocyanic acid (hydrogen cyanide, prussic acid)18%
28111920Hypophosphorus acid (phosphinic acid)18%
28111930Acids of arsenic18%
28111940Sulphonic acid18%
28111990Other18%
281121Carbon dioxide5% or 18%
28112110Dry ice18%
28112190Other18%
281122Silicon dioxide5% or 18%
28112200Silicon dioxide18%
28112300Other inorganic acids and other inorganic oxygen compounds of non-metals - other inorganic oxygen compounds of non-metals : sulphur dioxide18%
281129Other5% or 18%
28112910Arsenic pentaoxide18%
28112920Arsenic trioxide18%
28112930Nitrous oxide18%
28112940Carbon monoxide18%
28112950Sulphur trioxide (sulphuric anhydride)18%
28112990Other18%

2812 Halides and halide oxides of non-metals

GST: 5% or 18%

HSN codeDescriptionGST rate
281210Chlorides and chloride oxides5% or 18%
28121010Halides and halide oxides of non-metals - chlorides and chloride oxides : phosgene (carbonyl chloride, carbon oxy-chloride, chloroformyl chloride)18%
28121020Halides and halide oxides of non-metals - chlorides and chloride oxides : phosphorus trichloride18%
28121021Phosphorus trichloride18%
28121022Phosphorus pentachloride18%
28121030Halides and halide oxides of non-metals - chlorides and chloride oxides : phosphorus oxychloride18%
28121040Halides and halide oxides of non-metals - chlorides and chloride oxides : sulphur oxychloride, thionyl chloride18%
28121041Sulphur oxychloride18%
28121042Sulphur monochloride18%
28121043Sulphur dichloride18%
28121047Thionyl chloride18%
28121050Halides and halide oxides of non-metals - chlorides and chloride oxides : silicon tetrachloride18%
28121060Arsenous trichloride18%
28121090Halides and halide oxides of non-metals - chlorides and chloride oxides : other18%
281211Carbonyl dichloride (phosgene)5% or 18%
28121100Carbonyl dichloride (phosgene)18%
281212Phosphorous oxychloride5% or 18%
28121200Phosphorous oxychloride18%
281213Phosphorous trichloride5% or 18%
28121300Phosphorous trichloride18%
281214Phosphorous pentachloride5% or 18%
28121400Phosphorous pentachloride18%
281215Sulphur monochloride5% or 18%
28121500Sulphur monochloride18%
281216Sulphur dichloride5% or 18%
28121600Sulphur dichloride18%
281217Thionyl chloride5% or 18%
28121700Thionyl chloride18%
281219Other5% or 18%
28121910Sulpur oxychloride18%
28121920Silicon tetrachloride18%
28121930Arsenic trichloride18%
28121990Other18%
281290Other5% or 18%
28129000Other18%

2813 Sulphides of non-metals; commercial phosphorus trisulphide

GST: 5% or 18%

HSN codeDescriptionGST rate
281310Carbon disulphide5% or 18%
28131000Carbon disulphide18%
281390Other5% or 18%
28139010Arsenic disulphide (artificial)18%
28139020Commercial phosphorus trisulphide18%
28139030Lime sulphur18%
28139090Other18%

2814 Ammonia, anhydrous or in aqueous solution

GST: 5%

HSN codeDescriptionGST rate
281410Anhydrous ammonia5%
28141000Anhydrous ammonia5%
281420Ammonia in aqueous solution5%
28142000Ammonia in aqueous solution5%

2815 Sodium hydroxide (caustic soda), potassium hydroxide (caustic potash), peroxides of sodium or potassium

GST: 5% or 18%

HSN codeDescriptionGST rate
281511SOLID5% or 18%
28151110Flakes18%
28151190Other18%
281512In aqueous solution (soda lye or liquid soda)5% or 18%
28151200In aqueous solution (soda lye or liquid soda)18%
281520Potassium hydroxide (caustic potash)5% or 18%
28152000Potassium hydroxide (caustic potash)18%
281530Peroxides of sodium or potassium5% or 18%
28153000Peroxides of sodium or potassium18%

2816 Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium

GST: 5% or 18%

HSN codeDescriptionGST rate
281610Hydroxide and peroxide of magnesium5% or 18%
28161010Hydroxide of magnesium18%
28161020Peroxide of magnesium18%
281640Oxides, hydroxides and peroxides, of strontium or barium5% or 18%
28164000Oxides, hydroxides and peroxides, of strontium or barium18%

2817 Zinc oxide; zinc peroxide

GST: 5% or 18%

HSN codeDescriptionGST rate
281700Zinc oxide, zinc peroxide5% or 18%
28170010Zinc oxide18%
28170020Zinc peroxide18%

2818 Artificial corundum, whether or not chemically defined; aluminium oxide; aluminium hydroxide

GST: 5% or 18%

HSN codeDescriptionGST rate
281810Artificial corundum, whether or not chemically defined5% or 18%
28181000Artificial corundum, whether or not chemically defined18%
281820Aluminium oxide, other than artificial corundum5% or 18%
28182010Artificial corundum, whether or not chemically defined; aluminium oxide; aluminium hydroxide - aluminium oxide, other than artificial corundum : alumina, calcined18%
28182011Metallurgical grade, conforming to IS 1744118%
28182019Non- metallurgical grade, conforming to IS 1744118%
28182090Other18%
281830Aluminium hydroxide5% or 18%
28183000Aluminium hydroxide18%

2819 Chromium oxides and hydroxides

GST: 5% or 18%

HSN codeDescriptionGST rate
281910Chromium trioxide5% or 18%
28191000Chromium trioxide18%
281990Other5% or 18%
28199000Other18%

2820 Manganese oxides

GST: 5% or 18%

HSN codeDescriptionGST rate
282010Manganese dioxide5% or 18%
28201000Manganese dioxide18%
282090Other5% or 18%
28209000Other18%

2821 IRON OXIDES AND HYDROXIDES; EARTH COLOURS CONTAINING 70% OR MORE BY WEIGHT OF COMBINED IRON EVALUATED AS Fe2O3

GST: 5% or 18%

HSN codeDescriptionGST rate
282110Iron oxides and hydroxides5% or 18%
28211010Iron oxides18%
28211020Iron hydroxides18%
282120Earth colours5% or 18%
28212000Earth colours18%

2822 Cobalt oxides and hydroxides; commercial cobalt oxides

GST: 5% or 18%

HSN codeDescriptionGST rate
282200Cobalt oxides and hydroxides, commercial cobalt oxides5% or 18%
28220010Cobalt oxides18%
28220020Cobalt hydroxides18%
28220030Commercial cobalt oxides18%

2823 Titanium oxides

GST: 5% or 18%

HSN codeDescriptionGST rate
282300Titanium oxides5% or 18%
28230010Titanium dioxide18%
28230090Other18%

2824 Lead oxides; red lead and orange lead

GST: 5% or 18%

HSN codeDescriptionGST rate
282410Lead monoxide (litharge, massicot)5% or 18%
28241010Litharge18%
28241020Massicot18%
28242000Lead oxides; red lead and orange lead -red lead and orange lead18%
282490Other5% or 18%
28249000Other18%

2825 Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides

GST: 5% or 18%

HSN codeDescriptionGST rate
282510Hydrazine and hydroxylamine and their inorganic salts5% or 18%
28251010Hydrazine anhydrous18%
28251020Hydrazine hydrate18%
28251030Hydrazine sulphate18%
28251040Hydroxylamine sulphate18%
28251090Other18%
282520Lithium oxide and hydroxide5% or 18%
28252000Lithium oxide and hydroxide18%
282530Vanadium oxides and hydroxides5% or 18%
28253010Vanadium pentaoxide flakes18%
28253090Other18%
282540Nickel oxides and hydroxides5% or 18%
28254000Nickel oxides and hydroxides18%
282550Copper oxides and hydroxides5% or 18%
28255000Copper oxides and hydroxides18%
282560Germanium oxides and zirconium dioxide5% or 18%
28256010Germanium oxides18%
28256020Zirconium dioxide18%
282570Molybdenum oxides and hydroxides5% or 18%
28257010Molybdenum trioxide18%
28257020Molybdic acid18%
28257090Other18%
282580Antimony oxides5% or 18%
28258000Antimony oxides18%
282590Other5% or 18%
28259010Tin oxide18%
28259020Cadmium oxide18%
28259030Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides - other : mercury oxides (mercuric oxide)18%
28259040Calcium hydroxide18%
28259050Ammonium hydroxide18%
28259090Other18%

2826 Fluorides, fluorosilicates, fluoroaluminates and other complex fluorine salts

GST: 5% or 18%

HSN codeDescriptionGST rate
28261110Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts - fluorides : - of ammonium or of sodium : ammonium fluorides18%
28261120Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts - fluorides : - of ammonium or of sodium : sodium fluorides18%
282612Of aluminium5% or 18%
28261200Of aluminium18%
282619Other5% or 18%
28261910Magnesium fluoride18%
28261990Other18%
28262010Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts - fluorosilicates of sodium or of potassium : fluorosilicates of sodium18%
28262020Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts - fluorosilicates of sodium or of potassium : fluorosilicates of potassium18%
282630Sodium hexafluoroaluminate (synthetic cryolite)5% or 18%
28263000Sodium hexafluoroaluminate (synthetic cryolite)18%
282690Other5% or 18%
28269000Other18%

2827 Chlorides, chloride oxides and chloride hydroxides, bromides and bromide oxides, iodides and iodide oxides

GST: 5% or 18%

HSN codeDescriptionGST rate
282710Ammonium chloride5% or 18%
28271000Ammonium chloride18%
282720Calcium chloride5% or 18%
28272000Calcium chloride18%
282731Of magnesium5% or 18%
28273100Of magnesium18%
282732Of aluminium5% or 18%
28273200Of aluminium18%
28273300Chlorides, chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides - other chlorides : of iron18%
28273400Chlorides, chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides - other chlorides : of cobalt18%
282735Of nickel5% or 18%
28273500Of nickel18%
28273600Chlorides, chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides - other chlorides : of zinc18%
282739Other5% or 18%
28273910Chlorides, chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides - other chlorides : - other : mercuric chloride18%
28273920Mercurous chloride18%
28273930Strontium chloride18%
28273940Cuprous chloride18%
28273990Other18%
282741Of copper5% or 18%
28274110Copper oxychloride18%
28274190Other18%
282749Other5% or 18%
28274900Other18%
282751Bromides of sodium or of potassium5% or 18%
28275110Bromides of sodium18%
28275120Bromides of potassium18%
282759Other5% or 18%
28275910Magnesium bromide18%
28275990Other18%
282760Iodides and iodide oxides5% or 18%
28276010Potassium iodide18%
28276020Sodium iodide18%
28276090Other18%

2828 Hypochlorites ; commercial calcium hypochlorites; chlorites; hypobromites

GST: 5% or 18%

HSN codeDescriptionGST rate
282810Commercial calcium hypochlorite and other calcium hypochlorites5% or 18%
28281010Commercial calcium hypochlorite (bleaching paste or powder)18%
28281090Other18%
282890Other5% or 18%
28289011Bleaching paste or powder18%
28289019Other18%
28289020Potassium hypochlorites18%
28289030Sodium chlorite18%
28289040Aluminium chlorite18%
28289050Hypobromites18%
28289060Bleaching paste or powder of other hypochlorites18%
28289090Other18%

2829 Chlorates and perchlorates, bromates and perbromates, iodates and periodates

GST: 5% or 18%

HSN codeDescriptionGST rate
282911Of sodium5% or 18%
28291100Of sodium18%
282919Other5% or 18%
28291910Barium chlorate18%
28291920Potassium chlorate18%
28291930Magnesium chlorate18%
28291990Other18%
282990Other5% or 18%
28299010Perchlorates18%
28299020Bromates and perbromates18%
28299030Iodates and periodates5% or 18%

2830 Sulphides; polysulphides, whether or not chemically defined

GST: 5% or 18%

HSN codeDescriptionGST rate
283010Sodium sulphides5% or 18%
28301000Sodium sulphides18%
28302000Sulphides; polysulphides, whether or not chemically defined - zinc sulphide18%
28303000Sulphides; polysulphides, whether or not chemically defined - cadmium sulphide18%
283090Other5% or 18%
28309010Sulphides18%
28309020Polysulphides18%

2831 Dithionites and sulphoxylates

GST: 5% or 18%

HSN codeDescriptionGST rate
283110Of sodium5% or 18%
28311010Sodium dithionites (sodium hydrosulphite)18%
28311020Sodium sulphoxylates (including sodium formaldehyde sulphoxylate)18%
283190Other5% or 18%
28319010Dithionites18%
28319020Sulphoxylates18%

2832 Sulphites; thiosulphates

GST: 5% or 18%

HSN codeDescriptionGST rate
283210Sodium sulphites5% or 18%
28321010Sodium bisulphite18%
28321020Sodium hydrosulphite18%
28321090Other18%
283220Other sulphites5% or 18%
28322010Potassium metabisulphite18%
28322020Magnesium sulphite18%
28322090Other18%
283230Thiosulphates5% or 18%
28323010Sodium thiosulphate (hypo)18%
28323020Magnesium thiosulphate18%
28323090Other18%

2833 Sulphates; alums; peroxosulphates (persulphates)

GST: 5% or 18%

HSN codeDescriptionGST rate
283311Disodium sulphate5% or 18%
28331100Disodium sulphate18%
283319Other5% or 18%
28331910Sodium hydrogen sulphate (acid sulphate)18%
28331920Sodium pyrosulphate18%
28331990Other18%
283321Of magnesium5% or 18%
28332100Of magnesium18%
283322Of aluminium5% or 18%
28332210Aluminium sulphate (iron free)18%
28332290Other18%
28332300Sulphates; alums; peroxosulphates (persulphates) - other sulphates : of chromium18%
283324Of nickel5% or 18%
28332400Of nickel18%
283325Of copper5% or 18%
28332500Of copper18%
28332610Sulphates; alums; peroxosulphates (persulphates) - other sulphates : - of zinc : agricultural grade zinc sulphate ordinarily used as micronutrient5%
28332690Sulphates; alums; peroxosulphates (persulphates) - other sulphates : - of zinc : other18%
283327Of barium5% or 18%
28332700Of barium18%
283329Other5% or 18%
28332910Ferrous sulphate18%
28332920Sulphates; alums; peroxosulphates (persulphates) - other sulphates : - other : mercuric sulphate18%
28332930Quinidine sulphate18%
28332940Manganese sulphate18%
28332950Strontium sulphate18%
28332990Other18%
283330ALUMS5% or 18%
28333010Ammonium alum18%
28333020Ferric ammonium alum18%
28333030Potash alum18%
28333090Other18%
283340Peroxosulphates (persulphates)5% or 18%
28334000Peroxosulphates (persulphates)18%

2834 Nitrites; nitrates

GST: 5% or 18%

HSN codeDescriptionGST rate
283410Nitrites5% or 18%
28341010Sodium nitrite18%
28341090Other18%
283421Of potassium5% or 18%
28342100Of potassium18%
283429Other5% or 18%
28342910Strontium nitrate18%
28342920Magnesium nitrate18%
28342930Barium nitrate18%
28342990Other18%

2835 Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates, polyphosphates whether or not chemically defined

GST: Nil or 18%

HSN codeDescriptionGST rate
283510Phosphinates (hypophosphites) and phosphonates (phosphites)Nil or 18%
28351010Calcium hypophosphite18%
28351020Magnesium hypophosphite18%
28351090Other18%
283522Of mono-or disodiumNil or 18%
28352200Of mono-or disodium18%
28352300Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined - phosphates : of trisodium18%
283524Of potassiumNil or 18%
28352400Of potassium18%
283525Calcium hydrogenorthophosphate (dicalcium phosphate)Nil or 18%
28352500Calcium hydrogenorthophosphate (dicalcium phosphate)Nil or 18%
283526Other phosphates of calciumNil or 18%
28352610Calcium monobasic phosphate18%
28352620Calcium tribasic phosphate18%
28352690Other18%
283529OtherNil or 18%
28352910Magnesium phosphate, monobasic18%
28352920Magnesium phosphate, dibasic18%
28352930Magnesium phosphate, tribasic18%
28352940Sodium hexametaphosphate18%
28352990Other18%
283531Sodium triphosphate (sodium tripoly-phosphate)Nil or 18%
28353100Sodium triphosphate (sodium tripoly-phosphate)18%
283539OtherNil or 18%
28353900Other18%

2836 Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate

GST: 5% or 18%

HSN codeDescriptionGST rate
28361000Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate commercial ammonium carbonate and other ammonium carbonates18%
283620Disodium carbonate5% or 18%
28362010Disodium carbonate, dense18%
28362020Disodium carbonate, light18%
28362090Other18%
283630Sodium hydrogencarbonate (sodium bicarbonate)5% or 18%
28363000Sodium hydrogencarbonate (sodium bicarbonate)18%
283640Potassium carbonates5% or 18%
28364000Potassium carbonates18%
283650Calcium carbonate5% or 18%
28365000Calcium carbonate18%
283660Barium carbonate5% or 18%
28366000Barium carbonate18%
28367000Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate lead carbonate18%
283691Lithium carbonates5% or 18%
28369100Lithium carbonates18%
283692Strontium carbonate5% or 18%
28369200Strontium carbonate18%
283699Other5% or 18%
28369910Percarbonates18%
28369920Magnesium carbonate18%
28369930Aluminium bicarbonate18%
28369990Other18%

2837 Cyanides, cyanide oxides and complex cyanides

GST: 5% or 18%

HSN codeDescriptionGST rate
283711Of sodium5% or 18%
28371100Of sodium18%
283719Other5% or 18%
28371910Potassium cyanide18%
28371920Double cyanide of potassium and sodium18%
28371990Other18%
283720Complex cyanides5% or 18%
28372010Ammonium sulphocyanide18%
28372020Potassium ferricyanide18%
28372030Potassium ferrocyanide18%
28372040Sodium ferrocyanide18%
28372050Sodium nitroprusside (sodium nitroferricyanide)18%
28372090Other18%

2838 Fulminates, cyanates and thiocyanates - fulminates, cyanates and thiocyanates : fulminates

GST: 5% or 18%

HSN codeDescriptionGST rate
28380010Fulminates, cyanates and thiocyanates - fulminates, cyanates and thiocyanates : fulminates18%
28380020Fulminates, cyanates and thiocyanates - fulminates, cyanates and thiocyanates : cyanates18%
28380030Fulminates, cyanates and thiocyanates - fulminates, cyanates and thiocyanates : thiocyanates18%

2839 Silicates, commercial alkali metal silicates

GST: 5% or 18%

HSN codeDescriptionGST rate
283911Sodium metasilicates5% or 18%
28391100Sodium metasilicates18%
283919Other5% or 18%
28391900Other18%
28392000Silicates; commercial alkali metal silicates - of potassium18%
283990Other5% or 18%
28399010Magnesium trisilicate18%
28399090Other18%

2840 Borates, peroxoborates (perborates)

GST: 5% or 18%

HSN codeDescriptionGST rate
284011Anhydrous5% or 18%
28401100Anhydrous18%
284019Other5% or 18%
28401900Other18%
284020Other borates5% or 18%
28402010Magnesium borate18%
28402090Other18%
284030Peroxoborates (perborates)5% or 18%
28403000Peroxoborates (perborates)18%

2841 Salts of oxometallic or peroxometallic acids

GST: 5% or 18%

HSN codeDescriptionGST rate
28411010Salts of oxometallic or peroxometallic acids - aluminates : sodium aluminate18%
28411090Salts of oxometallic or peroxometallic acids - aluminates : other18%
28412010Salts of oxometallic or peroxometallic acids - chromates of zinc or of lead : chromates of zinc18%
28412020Salts of oxometallic or peroxometallic acids - chromates of zinc or of lead : chromates of lead18%
284130Sodium dichromate5% or 18%
28413000Sodium dichromate18%
284150Other chromates and dichromates, peroxochromates5% or 18%
28415010Sodium chromate18%
28415090Other18%
284161Potassium permanganate5% or 18%
28416100Potassium permanganate18%
284169Other5% or 18%
28416900Other18%
284170Molybdates5% or 18%
28417010Aluminium molybdate18%
28417020Sodium molybdate18%
28417090Other18%
284180Tungstates (wolframates)5% or 18%
28418010Sodium tungstate18%
28418020Magnesium tungstate18%
28418090Other18%
284190Other5% or 18%
28419000Other18%

2842 Other salts of inorganic acids or peroxoacids, (including aluminosilicates, whether or not chemically defined), other than azides

GST: 5% or 18%

HSN codeDescriptionGST rate
284210Double or complex silicates, including aluminosilicates, whether or not chemically defined5% or 18%
28421000Double or complex silicates, including aluminosilicates, whether or not chemically defined18%
284290Other5% or 18%
28429010Arsenites and arsenates18%
28429020Bichromates and dichromates18%
28429090Other18%

2843 Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals

GST: 5% or 18%

HSN codeDescriptionGST rate
284310Colloidal precious metals5% or 18%
28431010Of gold18%
28431020Of silver18%
28431090Other18%
284321Silver nitrate5% or 18%
28432100Silver nitrate18%
284329Other5% or 18%
28432900Other18%
284330Gold compounds5% or 18%
28433000Gold compounds18%
284390Other compounds, amalgams5% or 18%
28439011Sodium aurous thiosulphate18%
28439012Noble metal solutions of platinum, rhodium and palladium18%
28439019Other18%
28439020Amalgams18%

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

GST: 5% or 18%

HSN codeDescriptionGST rate
284410Natural uranium and its compounds, alloys, dispersions (including cermets), ceramic products and mixtures containing natural uranium or natural uranium compounds5% or 18%
28441000Natural uranium and its compounds, alloys,dispersions (including cermets), ceramicproducts and mixtures containing naturaluranium or natural uranium compounds18%
284420Uranium enriched in u235 and its compounds, plutonium and its compounds, alloys, dispersions (including cermets), ceramic products and mixtures containing uranium enriched in u235, plutonium or compounds of these products5% or 18%
28442000Uranium enriched in u235 and its compounds,plutonium and its compounds, alloys, dispersions (including cermets), ceramic products and mixturescontaining uranium enriched in u235, plutoniumor compounds of these products18%
284430Uranium 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 products5% or 18%
28443010Uranium depleted in u235 and thorium and their alloys, unwrought or wrought and compounds thereof18%
28443021Thorium oxide18%
28443022Thorium hydroxide18%
28443023Thorium nitrate18%
28443029Other18%
28443030Waste and scrap of uranium depleted in u235 or of thorium18%
28443090Other18%
28444000Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes) and their compounds; mixtures and residues containing these products - radioactive elements and isotopes and compounds other than those of subheadings 2844 10, 2844 20 or 2844 30; alloys, dispersions (including cermets), ceramic products and mixtures containing these elements, isotopes or compounds; radioactive residues18%
284441Tritium and its compounds, alloys, dispersions (including cermets), ceramic products and mixtures containing tritium or its compounds5% or 18%
28444100Tritium and its compounds, alloys, dispersions (including cermets), ceramic products and mixtures containing tritium or its compounds18%
284442Actinium-225, actinium-227, californium-253, curium-240, curium-241, curium-242, curium-243, curium-244, einsteinium-253, einsteinium-254, gadolinium-148, polonium-208, polonium-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 compounds5% or 18%
28444200Actinium-225, actinium-227, californium-253, curium-240, curium-241, curium-242, curium-243, curium-244, einsteinium-253, einsteinium-254, gadolinium-148, polonium-208, polonium-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 compounds18%
284443Other radioactive elements and isotopes and compounds, other alloys, dispersions (including cermets), ceramic products and mixtures containing these elements, isotopes or compounds5% or 18%
28444300Other radioactive elements and isotopes and compounds, other alloys, dispersions (including cermets), ceramic products and mixtures containing these elements, isotopes or compounds18%
284444Radioactive residues5% or 18%
28444400Radioactive residues18%
284450Spent (irradiated) fuel elements (cartridges) of nuclear reactors5% or 18%
28445000Spent (irradiated) fuel elements (cartridges) of nuclear reactors5%

2845 Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined

GST: 5% or 18%

HSN codeDescriptionGST rate
284510Heavy water (deuterium oxide)5% or 18%
28451000Heavy water (deuterium oxide)5%
284520Boron enriched in boron-10 and its compounds5% or 18%
28452000Boron enriched in boron-10 and its compounds18%
284530Lithium enriched in lithium-6 and its compounds5% or 18%
28453000Lithium enriched in lithium-6 and its compounds18%
284540Helium-25% or 18%
28454000Helium-218%
284590Other5% or 18%
28459010Nuclear fuels not elsewhere included or specified5%
28459090Other18%

2846 Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium or of mixtures of these metals

GST: 5% or 18%

HSN codeDescriptionGST rate
284610Cerium compounds5% or 18%
28461010Cerium oxides18%
28461090Other18%
284690Other5% or 18%
28469010Rare-earth oxides not elsewhere included or specified18%
28469020Rare-earth fluorides not elsewhere included or specified18%
28469030Rare-earth chlorides not elsewhere included or specified18%
28469090Other18%

2847 Hydrogen peroxide, whether or not solidified with urea

GST: 5%

HSN codeDescriptionGST rate
284700Hydrogen peroxide, whether or not solidified with urea5%
28470000Hydrogen peroxide, whether or not solidified with urea5%

2848 Phosphides, whether or not chemically defined, excluding ferrophosphorus

GST: 5% or 18%

HSN codeDescriptionGST rate
284800Phosphides, whether or not chemically defined, excluding ferrophosphorus5% or 18%
28480010Phosphides, whether or not chemically defined, excluding ferrophosphorus - phosphides, whether or not chemically defined, excluding ferrophosphorus : of copper (phosphor copper), containing more than 15% by weight of phosphorus18%
28480020Phosphides, whether or not chemically defined, excluding ferrophosphorus - phosphides, whether or not chemically defined, excluding ferrophosphorus : of zinc18%
28480090Phosphides, whether or not chemically defined, excluding ferrophosphorus - phosphides, whether or not chemically defined, excluding ferrophosphorus : other18%

2849 Carbides, whether or not chemically defined

GST: 5% or 18%

HSN codeDescriptionGST rate
284910Of calcium5% or 18%
28491000Of calcium18%
284920Of silicon5% or 18%
28492010Carborundum18%
28492090Other18%
284990Other5% or 18%
28499010Boron carbide18%
28499020Tungsten carbide18%
28499090Other18%

2850 Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849

GST: 5% or 18%

HSN codeDescriptionGST rate
285000Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 28495% or 18%
28500010Hydrides18%
28500020Nitrides18%
28500030Azides18%
28500041Of calcium18%
28500049Other18%
28500050Borides18%

2851

GST: 5% or 18%

HSN codeDescriptionGST rate
28510010Other 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 - 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 : distilled or conductivity water and water of similar purity18%
28510020Other 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 - 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 : liquid air, whether or not any fraction of rare gases has been removed18%
28510030Other 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 - 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 : compressed air18%
28510040Other 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 - 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 : amalgams, other than of precious metals18%
28510090Other 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 - 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 : other18%
28510091Cynogen chloride18%
28510099Other 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: other18%

2852 Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams

GST: 5% or 18%

HSN codeDescriptionGST rate
285210Chemically defined5% or 18%
28521000Chemically defined18%
285290Other5% or 18%
28529000Other18%

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

GST: 5%

HSN codeDescriptionGST rate
285300Other 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 metals5%
28530010Other 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: - 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 : amalgams, other than of precious metals --- distilled or conductivity water and water of similar purity5%
28530020Other 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: - 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 : amalgams, other than of precious metals --- liquid air, whether or not any fraction of rare gases has been removed5%
28530030Other 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: - 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 : amalgams, other than of precious metals --- compressed air5%
28530040Other 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: - 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 : amalgams, other than of precious metals --- amalgams, other than of precious metals5%
28530091Other 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: - 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 : amalgams, other than of precious metals --- other ---- cyanogen chloride [(cn) cl]5%
28530099Other 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: - 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 : amalgams, other than of precious metals --- other ---- other5%
285310Cyanogen chloride (chlorcyan)5%
28531000Cyanogen chloride (Chlorcyan)5%
285390Other5%
28539010Distilled or conductivity water and water of similar purity5%
28539020Liquid air, whether or not rare gases have been removed5%
28539030Compressed air5%
28539040Amalgams, other than of precious metals5%
28539050Magnesium phosphide plates, zinc phosphide5%
28539090Other5%

← Chapter 27 · Chapter 29 →

Codes and descriptions from the BooksOn HSN dataset (version 7, 2026-10-19), compiled from the Customs Tariff and CBIC notifications. Reference only; see Sources & disclaimer.

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