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HTS chapter 38: duty rates for all 182 tariff lines

Artificial graphite; colloidal or semi-colloidal graphite; preparations based on graphite or other carbon in the form of pastes, blocks, plates or other semimanufactures. 44 lines are duty-free at the general rate; 174 are on a Section 301 China list.

Official USITC HTS, 2026HTSRev20

3801: Artificial graphite; colloidal or semi-colloidal graphite; preparations based on graphite or other carbon in the form of pastes, blocks, pla…

LineDescriptionGeneralSection 301 (China)
3801.10.10Plates, rods, powder and other forms, wholly or partly manufactured, for manufacturing into br…3.7%List 3 +25%
3801.10.50Artificial graphite: OtherFreeList 3 +25%
3801.20.00Colloidal or semi-colloidal graphiteFreeList 3 +25%
3801.30.00Carbonaceous pastes for electrodes and similar pastes for furnace linings4.9%List 3 +25%
3801.90.00Artificial graphite; colloidal or semi-colloidal graphite; preparations based on…: Other4.9%List 3 +25%

3802: Activated carbon; activated natural mineral products; animal black, including spent animal black

LineDescriptionGeneralSection 301 (China)
3802.10.00Activated carbon; activated natural mineral products; animal black, including sp…: Activated c…4.8%List 3 +25%
3802.90.10Other: Bone black5.8%List 3 +25%
3802.90.20Activated clays and activated earths2.5%List 3 +25%
3802.90.50Other: Other4.8%List 3 +25%

3803: Tall oil, whether or not refined

LineDescriptionGeneralSection 301 (China)
3803.00.00Tall oil, whether or not refinedFreeList 3 +25%

3804: Residual lyes from the manufacture of wood pulp, whether or not concentrated, desugared or chemically treated, including lignin sulfonates, …

LineDescriptionGeneralSection 301 (China)
3804.00.10Lignin sulfonic acid and its saltsFreeList 3 +25%
3804.00.50Residual lyes from the manufacture of wood pulp, whether or not concentrated, de…: Other3.7%List 3 +25%

3805: Gum, wood or sulfate turpentine and other terpenic oils produced by the distillation or other treatment of coniferous woods; crude dipentene…

LineDescriptionGeneralSection 301 (China)
3805.10.00Gum, wood or sulfate turpentine oils5%List 3 +25%
3805.90.10Other: Pine oilFreeList 3 +25%
3805.90.50Other: Other3.7%List 3 +25%

3806: Rosin and resin acids, and derivatives thereof; rosin spirit and rosin oils; run gums

LineDescriptionGeneralSection 301 (China)
3806.10.00Rosin and resin acids, and derivatives thereof; rosin spirit and rosin oils; run…: Rosin and r…5%List 3 +25%
3806.20.00Salts of rosin, of resin acids or of derivatives of rosin or resin acids, other than salts of …3.7%List 3 +25%
3806.30.00Rosin and resin acids, and derivatives thereof; rosin spirit and rosin oils; run…: Ester gums6.5%List 3 +25%
3806.90.00Rosin and resin acids, and derivatives thereof; rosin spirit and rosin oils; run…: Other4.2%List 3 +25%

3807: Wood tar; wood tar oils; wood creosote; wood naphtha; vegetable pitch; brewers' pitch and similar preparations based on rosin, resin acids o…

LineDescriptionGeneralSection 301 (China)
3807.00.00Wood tar; wood tar oils; wood creosote; wood naphtha; vegetable pitch; brewers' pitch and simi…0.1%List 3 +25%

3808: Insecticides, rodenticides, fungicides, herbicides, antisprouting products and plant-growth regulators, disinfectants and similar products, …

LineDescriptionGeneralSection 301 (China)
3808.52.00DDT (ISO) (clofenatone (INN)), in packings of a net weight content not exceeding 300 g6.5%List 4A +7.5%
3808.59.10Containing any aromatic or modified aromatic pesticide6.5%List 4B (suspended, no extra duty)
3808.59.40Other: Disinfectants5%List 3 +25%
3808.59.50Other: Other5%List 4B (suspended, no extra duty)
3808.61.10Containing any aromatic or modified aromatic pesticide6.5%List 3 +25%
3808.61.50In packings of a net weight content not exceeding 300 g: Other5%List 4A +7.5%
3808.62.10Containing any aromatic or modified aromatic pesticide6.5%List 3 +25%
3808.62.50In packings of a net weight content exceeding 300 g but not exceeding 7.5 kg: Other5%List 3 +25%
3808.69.10Containing any aromatic or modified aromatic pesticide6.5%List 3 +25%
3808.69.50Other: Other5%List 3 +25%
3808.91.10Fly ribbons (ribbon fly catchers)2.8%List 3 +25%
3808.91.15Mixtures of N-[[(4-chlorophenyl)amino]- carbonyl]-2,6-difluorobenzamide and inert substancesFreeList 3 +25%
3808.91.25Containing any aromatic or modified aromatic insecticide: Other6.5%List 3 +25%
3808.91.30Containing an inorganic substance5%List 3 +25%
3808.91.50Other: Other5%List 3 +25%
3808.92.05Mixtures of dinocap and application adjuvantsFreeList 3 +25%
3808.92.15Containing any aromatic or modified aromatic fungicide: Other6.5%List 3 +25%
3808.92.24Maneb; Zineb; Mancozeb; and MetiramFreeList 3 +25%
3808.92.28Containing any fungicide which is a thioamide, thiocarbamate, dithiocarbamate, t…: Other3.7%List 3 +25%
3808.92.30Containing an inorganic substance5%List 3 +25%
3808.92.50Other: Other5%List 3 +25%
3808.93.05Mixtures of 2,6-dichlorobenzonitrile and inerts; Mixtures of 3,5-dichloro-N-(1,1-dimethyl-2- p…FreeList 3 +25%
3808.93.15Containing any aromatic or modified aromatic herbicide, anti-sprouting agent or …: Other6.5%List 3 +25%
3808.93.20Containing an inorganic substance5%List 3 +25%
3808.93.50Other: Other5%List 3 +25%
3808.94.10Containing any aromatic or modified aromatic disinfectant6.5%List 3 +25%
3808.94.50Disinfectants: Other5%List 3 +25% (1 product exclusion may apply)
3808.99.04Mixtures of 1,1-bis(4-chlorophenyl)-2,2,2- trichloroethanol (Dicofol) and application adjuvantsFreeList 3 +25%
3808.99.08Containing any aromatic or modified aromatic pesticide: Other6.5%List 3 +25%
3808.99.30Formulated biocides based on 2-methyl-4-isothiazolin-3-one, or 2-n-octyl-4-isothiazolin-3-one,…FreeList 3 +25%
3808.99.70Containing an inorganic substance5%List 3 +25%
3808.99.95Other: Other5%List 3 +25%

3809: Finishing agents, dye carriers to accelerate the dyeing or fixing of dyestuffs and other products and preparations (for example, dressings a…

LineDescriptionGeneralSection 301 (China)
3809.10.00With a basis of amylaceous substances2.2¢/kg + 3%List 4A +7.5%
3809.91.00Of a kind used in the textile or like industries6%List 3 +25%
3809.92.10Containing 5 percent or more by weight of one or more aromatic or modified aromatic substances6.5%List 3 +25%
3809.92.50Of a kind used in the paper or like industries: Other6%List 3 +25%
3809.93.10Containing 5 percent or more by weight of one or more aromatic or modified aromatic substances6.5%List 3 +25%
3809.93.50Of a kind used in the leather or like industries: Other6%List 3 +25%

3810: Pickling preparations for metal surfaces; fluxes and other auxiliary preparations for soldering, brazing or welding; soldering, brazing or w…

LineDescriptionGeneralSection 301 (China)
3810.10.00Pickling preparations for metal surfaces; soldering, brazing or welding powders and pastes con…5%List 3 +25%
3810.90.10Containing 5 percent or more by weight of one or more aromatic or modified aromatic substances6.5%List 3 +25%
3810.90.20Consisting wholly of inorganic substancesFreeList 3 +25%
3810.90.50Other: Other5%List 3 +25%

3811: Antiknock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives,…

LineDescriptionGeneralSection 301 (China)
3811.11.10Based on tetraethyl lead or on a mixture of tetraethyl lead and tetramethyl leadFreeList 3 +25%
3811.11.50Based on lead compounds: OtherFreeList 3 +25%
3811.19.00Antiknock preparations: Other6.5%List 3 +25%
3811.21.00Containing petroleum oils or oils obtained from bituminous minerals6.5%List 2 +25%
3811.29.00Additives for lubricating oils: Other6.5%List 2 +25%
3811.90.00Antiknock preparations, oxidation inhibitors, gum inhibitors, viscosity improver…: Other6.5%List 3 +25%

3812: Prepared rubber accelerators; compound plasticizers for rubber or plastics, not elsewhere specified or included; antioxidizing preparations …

LineDescriptionGeneralSection 301 (China)
3812.10.10Containing any aromatic or modified aromatic rubber accelerator6.5%List 3 +25%
3812.10.50Prepared rubber accelerators: Other5%List 3 +25%
3812.20.10Containing any aromatic or modified aromatic plasticizer6.5%List 3 +25%
3812.20.50Compound plasticizers for rubber or plastics: Other5%List 3 +25%
3812.31.00Mixtures of oligomers of 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ)6.5%List 3 +25%
3812.39.20Mixtures of N,N'-diaryl-p-phenylenediamines6.5%List 3 +25%
3812.39.30Master batches of poly[nitrilomethanetetraaryl- nitrilo[2,4,6- tris(1-methylethyl)-1,3- phenyl…FreeList 3 +25%
3812.39.60Containing any aromatic or modified aromatic antioxidant or other stabilizer: Other6.5%List 3 +25%
3812.39.70Bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacateFreeList 3 +25%
3812.39.90Other: Other5%List 3 +25%

3813: Preparations and charges for fire extinguishers; charged fire-extinguishing grenades

LineDescriptionGeneralSection 301 (China)
3813.00.10Consisting wholly of inorganic substancesFreeList 3 +25%
3813.00.50Preparations and charges for fire extinguishers; charged fire-extinguishing gren…: Other3.7%List 3 +25%

3814: Organic composite solvents and thinners, not elsewhere specified or included; prepared paint or varnish removers

LineDescriptionGeneralSection 301 (China)
3814.00.10Containing 5 percent or more but not more than 25 percent by weight of one or more aromatic or…6.5%List 3 +25%
3814.00.20Containing more than 25 percent by weight of one or more aromatic or modified aromatic substan…6.5%List 3 +25%
3814.00.50Organic composite solvents and thinners, not elsewhere specified or included; pr…: Other6%List 3 +25%

3815: Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included

LineDescriptionGeneralSection 301 (China)
3815.11.00With nickel or nickel compounds as the active substanceFreeList 3 +25% (1 product exclusion may apply)
3815.12.00With precious metal or precious metal compounds as the active substanceFreeList 3 +25%
3815.19.00Supported catalysts: OtherFreeList 3 +25% (6 product exclusions may apply)
3815.90.10Of bismuth, of tungsten or of vanadium6.5%List 3 +25%
3815.90.20Consisting wholly of inorganic substances: Of mercury or of molybdenum2.8%List 3 +25%
3815.90.30Consisting wholly of inorganic substances: OtherFreeList 3 +25%
3815.90.50Other: Other5%List 3 +25%

3816: Refractory cements, mortars, concretes and similar compositions, including dolomite ramming mix, other than products of heading 3801

LineDescriptionGeneralSection 301 (China)
3816.00.10Refractory cements, mortars, concretes and similar compositions, including dolom…: Dolomite ra…FreeList 3 +25%
3816.00.20Refractory cements, mortars, concretes and similar compositions, including dolom…: Other3%List 3 +25%

3817: Mixed alkylbenzenes and mixed alkylnaphthalenes, other than those of heading 2707 or 2902

LineDescriptionGeneralSection 301 (China)
3817.00.10Mixed alkylbenzenes: Mixed linear alkylbenzenes6.5%List 3 +25%
3817.00.15Mixed alkylbenzenes: Other6.5%List 3 +25%
3817.00.20Mixed alkylbenzenes and mixed alkylnaphthalenes, other than those of heading 270…: Mixed alkyl…6.5%List 3 +25%

3818: Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electroni…

LineDescriptionGeneralSection 301 (China)
3818.00.00Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms;…FreeFour-year review +50%

3819: Hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing or containing less than 70 percent by weight of…

LineDescriptionGeneralSection 301 (China)
3819.00.00Hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing o…6.5%List 3 +25%

3820: Antifreezing preparations and prepared deicing fluids

LineDescriptionGeneralSection 301 (China)
3820.00.00Antifreezing preparations and prepared deicing fluids6.5%List 4A +7.5%

3821: Prepared culture media for development or maintenance of micro-organisms (including viruses and the like) or of plant, human or animal cells

LineDescriptionGeneralSection 301 (China)
3821.00.00Prepared culture media for development or maintenance of micro-organisms (including viruses an…5%none

3822: Diagnostic or laboratory reagents on a backing, prepared diagnostic or laboratory reagents whether or not on a backing, whether or not put u…

LineDescriptionGeneralSection 301 (China)
3822.11.00Diagnostic or laboratory reagents on a backing, prepared diagnostic or laborator…: For malariaFreenone
3822.12.00For Zika and other diseases transmitted by mosquitoes of the genus AedesFreenone
3822.13.00Diagnostic or laboratory reagents on a backing, prepared diagnostic or laborator…: For blood-g…Freenone
3822.19.00Diagnostic or laboratory reagents on a backing, prepared diagnostic or laborator…: OtherFreenone
3822.90.00Certified reference materialsFreenone

3823: Industrial monocarboxylic fatty acids; acid oils from refining; industrial fatty alcohols

LineDescriptionGeneralSection 301 (China)
3823.11.00Industrial monocarboxylic fatty acids; acid oils from refining: Stearic acid2.1¢/kg + 3.8%List 4A +7.5%
3823.12.00Industrial monocarboxylic fatty acids; acid oils from refining: Oleic acid2.1¢/kg + 3.2%List 4A +7.5%
3823.13.00Industrial monocarboxylic fatty acids; acid oils from refining: Tall oil fatty acids3.2%List 4A +7.5%
3823.19.20Derived from coconut, palm-kernel or palm oil2.3%List 4A +7.5%
3823.19.40Other: Other3.2%List 4A +7.5%
3823.70.20Derived from fatty substances of animal or vegetable origin: Oleyl5.1%List 4A +7.5%
3823.70.40Derived from fatty substances of animal or vegetable origin: Other2%List 4A +7.5%
3823.70.60Industrial fatty alcohols: Other2.4%List 4A +7.5%

3824: Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consis…

LineDescriptionGeneralSection 301 (China)
3824.10.00Prepared binders for foundry molds or cores6%List 3 +25%
3824.30.00Nonagglomerated metal carbides mixed together or with metallic binders3.6%List 3 +25%
3824.40.10Containing 5 percent or more by weight of one or more aromatic or modified aromatic substances6.5%List 3 +25%
3824.40.20Consisting wholly of inorganic substancesFreeList 3 +25%
3824.40.50Prepared additives for cements, mortars or concretes: Other5%List 3 +25%
3824.50.00Nonrefractory mortars and concretesFreeList 3 +25%
3824.60.00Sorbitol other than that of subheading 2905.444.9%List 4A +7.5%
3824.81.00Containing oxirane (ethylene oxide)5%List 3 +25%
3824.82.10Chlorinated but not otherwise halogenated6.5%List 3 +25%
3824.82.90Containing polychlorinated biphenyls (PCBs), polychlorinated terphenyls ({PCTs) …: Other3.7%List 3 +25%
3824.83.00Containing tris(2,3-dibromopropyl) phospate5%List 3 +25%
3824.84.00Containing aldrin (ISO), camphechlor (ISO) (toxaphene), chlordane (ISO), chlordecone (ISO), DD…6.5%List 3 +25%
3824.85.00Containing 1,2,3,4,5,6-hexachlorocyclohexane (HCH (ISO)), including lindane (ISO,INN)6.5%List 3 +25%
3824.86.00Containing pentachlorobenzene (ISO) or hexachlorobenzene (ISO)6.5%List 3 +25%
3824.87.00Containing perfluorooctane sulfonic acid, its salts, perfluorooctane sulfonamides, or perfluor…3.7%List 3 +25%
3824.88.00Containing tetra-, penta-, hexa-, hepta-, or octabromodiphenyl ethers6.5%List 3 +25%
3824.89.00Containing short-chain chlorinated paraffins6.5%List 3 +25%
3824.91.00Mixtures and preparations consisting mainly of (5-ethyl-2-methyl-2-oxido3,2-dioxaphosphinan-5-…5%List 3 +25%
3824.92.00Polyglycol esters of methylphosphonic acid.5%List 3 +25%
3824.99.11Cultured crystals (other than optical elements of chapter 90), weighing not less…: In the form…FreeList 3 +25%
3824.99.19Cultured crystals (other than optical elements of chapter 90), weighing not less…: Other6.5%List 3 +25%
3824.99.21Consisting wholly of substances found naturally in coal tar, whether obtained from coal tar or…FreeList 3 +25%
3824.99.25Aqueous mixtures of triphenyl sulfonium chloride, diphenyl (4-phenylthio)phenyl sulfonium chlo…6.5%List 3 +25%
3824.99.26Benzene, 2,4-diisocyanate-1,3,5-tris(1- methylethyl) homopolymer; 5-Fluoro-2-methyl-1-[[4-(met…FreeList 3 +25%
3824.99.29Mixtures containing 5 percent or more by weight of one or more aromatic or modif…: Other6.5%List 3 +25%
3824.99.31Mixtures of two or more inorganic compounds: Of bismuth6.5%List 3 +25%
3824.99.32Of hydrosulfite compounds, of sulfoxylate compounds, or of both6.5%List 3 +25%
3824.99.33Mixtures of two or more inorganic compounds: Of mercury4.2%List 3 +25%
3824.99.34Mixtures of two or more inorganic compounds: Of molybdenum2.8%List 3 +25%
3824.99.35Mixtures of two or more inorganic compounds: Of tungsten6.5%List 3 +25%
3824.99.36Mixtures of two or more inorganic compounds: Of vanadium6.5%List 4A +7.5%
3824.99.39Mixtures of two or more inorganic compounds: OtherFreeList 3 +25%
3824.99.41Fatty substances of animal or vegetable origin and mixtures thereof4.6%List 3 +25%
3824.99.49Mixtures that are in whole or in part of hydrocarbons derived in whole or in part from petrole…6.5%List 3 +25%
3824.99.50Chlorinated but not otherwise halogenated6.5%List 3 +25%
3824.99.55Mixtures of halogenated hydrocarbons: Other3.7%List 3 +25%
3824.99.70Mixtures of dibromo neopentyl glycol; Polydibromophenylene oxide; Tetrabromobisphenol-A-carbon…FreeList 3 +25%
3824.99.75Naphthenic acids, their water-insoluble salts and their esters3.7%List 3 +25%
3824.99.93Other: Other5%List 3 +25%

3825: Residual products of the chemical or allied industries, not elsewhere specified or included; municipal waste; sewage sludge; other wastes sp…

LineDescriptionGeneralSection 301 (China)
3825.10.01Residual products of the chemical or allied industries, not elsewhere specified …: Municipal w…FreeList 4A +7.5%
3825.20.00Residual products of the chemical or allied industries, not elsewhere specified …: Sewage slud…FreeList 4A +7.5%
3825.30.00Residual products of the chemical or allied industries, not elsewhere specified …: Clinical wa…FreeList 4A +7.5%
3825.41.00Waste organic solvents: HalogenatedFreeList 3 +25%
3825.49.00Waste organic solvents: OtherFreeList 3 +25%
3825.50.00Wastes of metal-pickling liquors, hydraulic fluids, brake fluids and anti-freeze fluidsFreeList 3 +25%
3825.61.00Mainly containing organic constituentsFreeList 3 +25%
3825.69.00Other wastes from the chemical or allied industries: OtherFreeList 3 +25%
3825.90.01Residual products of the chemical or allied industries, not elsewhere specified …: OtherFreeList 3 +25%

3826: Biodiesel and mixtures thereof, not containing or containing less than 70 percent by weight of petroleum oils or oils obtained from bitumino…

LineDescriptionGeneralSection 301 (China)
3826.00.10Biodiesel not containing petroleum oils or oils obtained from bituminous materials (B100)4.6%List 3 +25%
3826.00.30Biodiesel and mixtures thereof, not containing or containing less than 70 percen…: Other6.5%List 3 +25%

3827: Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included

LineDescriptionGeneralSection 301 (China)
3827.11.00Containing chlorofluorocarbons (CFCs), whether or not containing hydrochlorofluorocarbons (HCF…3.7%List 3 +25%
3827.12.00Containing hydrobromofluorocarbons (HBFCs)3.7%List 3 +25%
3827.13.00Containing carbon tetrachloride6.5%List 3 +25%
3827.14.00Containing 1,1,1-trichloroethane (methyl chloroform)6.5%List 3 +25%
3827.20.00Containing bromochlorodifluoromethane (Halon-1211), bromotrifluoromethane (Halon-1301) or dibr…3.7%List 3 +25%
3827.31.00Containing substances of subheadings 2903.41 to 2903.483.7%List 3 +25%
3827.32.00Containing hydrochlorofluorocarbons (HCFCs), whether or not containing perfluoro…: Other, cont…3.7%List 3 +25%
3827.39.00Containing hydrochlorofluorocarbons (HCFCs), whether or not containing perfluoro…: Other3.7%List 3 +25%
3827.40.00Containing methyl bromide (bromomethane) or bromochloromethane3.7%List 3 +25%
3827.51.00Containing trifluoromethane (HFC-23)3.7%List 3 +25%
3827.59.00Containing trifluoromethane (HFC-23) or perfluorocarbons (PFCs) but not containi…: Other3.7%List 3 +25%
3827.61.00Containing 15 percent or more by mass of 1,1,1-trifluoroethane (HFC-143a)3.7%List 3 +25%
3827.62.00Containing other hydrofluorocarbons (HFCs) but not containing chlorofluorocarbon…: Other, not …3.7%List 3 +25%
3827.63.00Containing other hydrofluorocarbons (HFCs) but not containing chlorofluorocarbon…: Other, not …3.7%List 3 +25%
3827.64.00Containing other hydrofluorocarbons (HFCs) but not containing chlorofluorocarbon…: Other, not …3.7%List 3 +25%
3827.65.00Containing other hydrofluorocarbons (HFCs) but not containing chlorofluorocarbon…: Other, not …3.7%List 3 +25%
3827.68.00Containing other hydrofluorocarbons (HFCs) but not containing chlorofluorocarbon…: Other, not …3.7%List 3 +25%
3827.69.00Containing other hydrofluorocarbons (HFCs) but not containing chlorofluorocarbon…: Other3.7%List 3 +25%
3827.90.10Chlorinated but not otherwise halogenated6.5%List 3 +25%
3827.90.90Other: Other3.7%List 3 +25%