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HS chapter 38: Miscellaneous chemical products

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Key facts

Chapter
38
Description
Miscellaneous chemical products
Headings
27
Subheadings
108
Edition
HS2022

Summary

HS chapter 38 covers miscellaneous chemical products. It has 27 headings, 38.01 to 38.27, and 108 six-digit subheadings in HS2022. National tariff lines under chapter 38 are live on border.bot for the United States (217 lines, also used by 1 other country).

What this chapter covers

HS chapter 38 covers miscellaneous chemical products.

It has 27 headings, 38.01 to 38.27, and 108 six-digit subheadings in HS2022.

Subheadings 1 to 100 of 108, page 1 of 2.

38.03 Tall oil, whether or not refined

  • 3803.00Tall oil, whether or not refined

38.04 Residual lyes from the manufacture of wood pulp, whether or not concentrated, desugared or chemically treated, including lignin sulphonates, but excluding tall oil of heading 38.03

  • 3804.00Residual lyes from the manufacture of wood pulp, whether or not concentrated, desugared or chemically treated, including lignin sulphonates, but excluding tall oil of heading 38.03

38.06 Rosin and resin acids, and derivatives thereof; rosin spirit and rosin oils; run gums

  • 3806.10Rosin and resin acids
  • 3806.20Salts of rosin, of resin acids or of derivatives of rosin or resin acids, other than salts of rosin adducts
  • 3806.30Ester gums
  • 3806.90Other

38.07 Wood tar; wood tar oils; wood creosote; wood naphtha; vegetable pitch; brewers' pitch and similar preparations based on rosin, resin acids or on vegetable pitch

  • 3807.00Wood tar; wood tar oils; wood creosote; wood naphtha; vegetable pitch; brewers' pitch and similar preparations based on rosin, resin acids or on vegetable pitch

38.08 Insecticides, rodenticides, fungicides, herbicides, anti-sprouting products and plant-growth regulators, disinfectants and similar products, put up in forms or packings for retail sale or as preparations or articles (for example, sulphur-treated bands, wicks and candles, and fly-papers)

  • 3808.52Goods specified in subheading note 1 to this chapter: DDT (ISO) (clofenotane (INN)), in packings of a net weight content not exceeding 300g
  • 3808.59Goods specified in subheading note 1 to this chapter: Other
  • 3808.61Goods specified in subheading note 2 to this chapter: In packings of a net weight content not exceeding 300g
  • 3808.62Goods specified in subheading note 2 to this chapter: In packings of a net weight content exceeding 300g but not exceeding 7.5kg
  • 3808.69Goods specified in subheading note 2 to this chapter: Other
  • 3808.91Other: Insecticides
  • 3808.92Other: Fungicides
  • 3808.93Other: Herbicides, anti-sprouting products and plant-growth regulators
  • 3808.94Other: Disinfectants
  • 3808.99Other: Other

38.09 Finishing agents, dye carriers to accelerate the dyeing or fixing of dyestuffs and other products and preparations (for example, dressings and mordants), of a kind used in the textile, paper, leather or like industries, not elsewhere specified or included

  • 3809.10With a basis of amylaceous substances
  • 3809.91Other: Of a kind used in the textile or like industries
  • 3809.92Other: Of a kind used in the paper or like industries
  • 3809.93Other: Of a kind used in the leather or like industries

38.11 Anti-knock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils

  • 3811.11Anti-knock preparations: Based on lead compounds
  • 3811.19Anti-knock preparations: Other
  • 3811.21Additives for lubricating oils: Containing petroleum oils or oils obtained from bituminous minerals
  • 3811.29Additives for lubricating oils: Other
  • 3811.90Other

38.12 Prepared rubber accelerators; compound plasticisers for rubber or plastics, not elsewhere specified or included; anti-oxidising preparations and other compound stabilisers for rubber or plastics

  • 3812.10Prepared rubber accelerators
  • 3812.20Compound plasticisers for rubber or plastics
  • 3812.31Anti-oxidising preparations and other compound stabilisers for rubber or plastics: Mixtures of oligomers of 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ)
  • 3812.39Anti-oxidising preparations and other compound stabilisers for rubber or plastics: Other

38.13 Preparations and charges for fire-extinguishers; charged fire- extinguishing grenades

  • 3813.00Preparations and charges for fire-extinguishers; charged fire- extinguishing grenades

38.14 Organic composite solvents and thinners, not elsewhere specified or included; prepared paint or varnish removers

  • 3814.00Organic composite solvents and thinners, not elsewhere specified or included; prepared paint or varnish removers

38.15 Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included

  • 3815.11Supported catalysts: With nickel or nickel compounds as the active substance
  • 3815.12Supported catalysts: With precious metal or precious metal compounds as the active substance
  • 3815.19Supported catalysts: Other
  • 3815.90Other

38.16 Refractory cements, mortars, concretes and similar compositions, including dolomite ramming mix, other than products of heading 38.01

  • 3816.00Refractory cements, mortars, concretes and similar compositions, including dolomite ramming mix, other than products of heading 38.01

38.17 Mixed alkylbenzenes and mixed alkylnaphthalenes, other than those of heading 27.07 or 29.02

  • 3817.00Mixed alkylbenzenes and mixed alkylnaphthalenes, other than those of heading 27.07 or 29.02

38.18 Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics

  • 3818.00Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics

38.19 Hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing or containing less than 70 % by weight of petroleum oils or oils obtained from bituminous minerals

  • 3819.00Hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing or containing less than 70 % by weight of petroleum oils or oils obtained from bituminous minerals

38.20 Anti-freezing preparations and prepared de-icing fluids

  • 3820.00Anti-freezing preparations and prepared de-icing fluids

38.21 Prepared culture media for the development or maintenance of micro-organisms (including viruses and the like) or of plant, human or animal cells

  • 3821.00Prepared culture media for the development or maintenance of micro-organisms (including viruses and the like) or of plant, human or animal cells

38.22 Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits, other than those of heading 30.06; certified reference materials

  • 3822.11Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits: For malaria
  • 3822.12Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits: For Zika and other diseases transmitted by mosquitoes of the genus Aedes
  • 3822.13Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits: For blood-grouping
  • 3822.19Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put up in the form of kits: Other
  • 3822.90Other

38.23 Industrial monocarboxylic fatty acids; acid oils from refining; industrial fatty alcohols

  • 3823.11Industrial monocarboxylic fatty acids; acid oils from refining: Stearic acid
  • 3823.12Industrial monocarboxylic fatty acids; acid oils from refining: Oleic acid
  • 3823.13Industrial monocarboxylic fatty acids; acid oils from refining: Tall oil fatty acids
  • 3823.19Industrial monocarboxylic fatty acids; acid oils from refining: Other
  • 3823.70Industrial fatty alcohols

38.24 Prepared binders for foundry moulds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included

  • 3824.10Prepared binders for foundry moulds or cores
  • 3824.30Non-agglomerated metal carbides mixed together or with metallic binders
  • 3824.40Prepared additives for cements, mortars or concretes
  • 3824.50Non-refractory mortars and concretes
  • 3824.60Sorbitol other than that of subheading 2905.44
  • 3824.81Goods specified in subheading note 3 to this chapter: Containing oxirane (ethylene oxide)
  • 3824.82Goods specified in subheading note 3 to this chapter: Containing polychlorinated biphenyls (PCBs), polychlorinated terphenyls (PCTs) or polybrominated biphenyls (PBBs)
  • 3824.83Goods specified in subheading note 3 to this chapter: Containing tris(2,3-dibromopropyl) phosphate
  • 3824.84Goods specified in subheading note 3 to this chapter: Containing aldrin (ISO), camphechlor (ISO) (toxaphene), chlordane (ISO), chlordecone (ISO), DDT (ISO) (clofenotane (INN), 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane), dieldrin (ISO, INN), endosulfan (ISO), endrin (ISO), heptachlor (ISO) or mirex (ISO)
  • 3824.85Goods specified in subheading note 3 to this chapter: Containing 1,2,3,4,5,6-hexachlorocyclohexane (HCH (ISO)), including lindane (ISO, INN)
  • 3824.86Goods specified in subheading note 3 to this chapter: Containing pentachlorobenzene (ISO) or hexachlorobenzene (ISO)
  • 3824.87Goods specified in subheading note 3 to this chapter: Containing perfluorooctane sulphonic acid, its salts, perfluorooctane sulphonamides, or perfluorooctane sulphonyl fluoride
  • 3824.88Goods specified in subheading note 3 to this chapter: Containing tetra-, penta-, hexa-, hepta- or octabromodiphenyl ethers
  • 3824.89Goods specified in subheading note 3 to this chapter: Containing short-chain chlorinated paraffins
  • 3824.91Other: Mixtures and preparations consisting mainly of (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl methyl methylphosphonate and bis[(5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl)methyl] methylphosphonate
  • 3824.92Other: Polyglycol esters of methylphosphonic acid
  • 3824.99Other: Other

38.25 Residual products of the chemical or allied industries, not elsewhere specified or included; municipal waste; sewage sludge; other wastes specified in Note 6 to this Chapter

  • 3825.10Municipal waste
  • 3825.20Sewage sludge
  • 3825.30Clinical waste
  • 3825.41Waste organic solvents: Halogenated
  • 3825.49Waste organic solvents: Other
  • 3825.50Wastes of metal pickling liquors, hydraulic fluids, brake fluids and anti-freeze fluids
  • 3825.61Other wastes from chemical or allied industries: Mainly containing organic constituents
  • 3825.69Other wastes from chemical or allied industries: Other
  • 3825.90Other

38.26 Biodiesel and mixtures thereof, not containing or containing less than 70 % by weight of petroleum oils or oils obtained from bituminous minerals

  • 3826.00Biodiesel and mixtures thereof, not containing or containing less than 70 % by weight of petroleum oils or oils obtained from bituminous minerals

38.27 Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included

  • 3827.11Containing chlorofluorocarbons (CFCs), whether or not containing hydrochlorofluorocarbons (HCFCs), perfluorocarbons (PFCs) or hydrofluorocarbons (HFCs); containing hydrobromofluorocarbons (HBFCs); containing carbon tetrachloride; containing 1,1,1-trichloroethane (methyl chloroform): Containing chlorofluorocarbons (CFCs), whether or not containing hydrochlorofluorocarbons (HCFCs), perfluorocarbons (PFCs) or hydrofluorocarbons (HFCs)
  • 3827.12Containing chlorofluorocarbons (CFCs), whether or not containing hydrochlorofluorocarbons (HCFCs), perfluorocarbons (PFCs) or hydrofluorocarbons (HFCs); containing hydrobromofluorocarbons (HBFCs); containing carbon tetrachloride; containing 1,1,1-trichloroethane (methyl chloroform): Containing hydrobromofluorocarbons (HBFCs)
  • 3827.13Containing chlorofluorocarbons (CFCs), whether or not containing hydrochlorofluorocarbons (HCFCs), perfluorocarbons (PFCs) or hydrofluorocarbons (HFCs); containing hydrobromofluorocarbons (HBFCs); containing carbon tetrachloride; containing 1,1,1-trichloroethane (methyl chloroform): Containing carbon tetrachloride
  • 3827.14Containing chlorofluorocarbons (CFCs), whether or not containing hydrochlorofluorocarbons (HCFCs), perfluorocarbons (PFCs) or hydrofluorocarbons (HFCs); containing hydrobromofluorocarbons (HBFCs); containing carbon tetrachloride; containing 1,1,1-trichloroethane (methyl chloroform): Containing 1,1,1-trichloroethane (methyl chloroform)
  • 3827.20Containing bromochlorodifluoromethane (Halon-1211), bromotrifluoromethane (Halon-1301) or dibromotetrafluoroethanes (Halon-2402)
  • 3827.31Containing hydrochlorofluorocarbons (HCFCs), whether or not containing perfluorocarbons (PFCs) or hydrofluorocarbons (HFCs), but not containing chlorofluorocarbons (CFCs): Containing substances of subheadings 2903.41 to 2903.48
  • 3827.32Containing hydrochlorofluorocarbons (HCFCs), whether or not containing perfluorocarbons (PFCs) or hydrofluorocarbons (HFCs), but not containing chlorofluorocarbons (CFCs): Other, containing substances of subheadings 2903.71 to 2903.75
  • 3827.39Containing hydrochlorofluorocarbons (HCFCs), whether or not containing perfluorocarbons (PFCs) or hydrofluorocarbons (HFCs), but not containing chlorofluorocarbons (CFCs): Other
  • 3827.40Containing methyl bromide (bromomethane) or bromochloromethane
  • 3827.51Containing trifluoromethane (HFC-23) or perfluorocarbons (PFCs) but not containing chlorofluorocarbons (CFCs) or hydrochlorofluorocarbons (HCFCs): Containing trifluoromethane (HFC-23)
  • 3827.59Containing trifluoromethane (HFC-23) or perfluorocarbons (PFCs) but not containing chlorofluorocarbons (CFCs) or hydrochlorofluorocarbons (HCFCs): Other

What it doesn’t cover

Chapter 37, before it, covers photographic or cinematographic goods; chapter 39, after it, covers plastics and articles thereof.

How it is structured

Chapter 38 is the first level of the Harmonized System. Its headings add two digits to the chapter number (38.01), and each heading's subheadings add two more.

In other countries

National tariff lines under chapter 38 are live on border.bot for the United States (217 lines, also used by 1 other country).

Frequently asked questions

What does HS chapter 38 cover?

HS chapter 38 covers miscellaneous chemical products.

How many headings and subheadings are in HS chapter 38?

HS chapter 38 has 27 headings and 108 six-digit subheadings in HS2022.

Which countries’ tariffs list national lines in HS chapter 38?

National tariff lines under chapter 38 are live on border.bot for the United States (217 lines, also used by 1 other country).

Sources and updates

The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.

This page was last updated on 11 October 2026.

Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.

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