Section VI: Products of the Chemical or Allied Industries
HTS Chapter 38: Miscellaneous chemical products
Chapter 38 of the US Harmonized Tariff Schedule has 27 headings. Open a heading to see every subheading, duty rate and 10-digit statistical line.
- 3801Artificial graphite; colloidal or semi-colloidal graphite; preparations based on graphite or other carbon in the form of pastes, blocks, plates or other semimanufactures:
- 3802Activated carbon; activated natural mineral products; animal black, including spent animal black:
- 3803Tall oil, whether or not refined
- 3804Residual lyes from the manufacture of wood pulp, whether or not concentrated, desugared or chemically treated, including lignin sulfonates, but excluding tall oil of heading 3803:
- 3805Gum, wood or sulfate turpentine and other terpenic oils produced by the distillation or other treatment of coniferous woods; crude dipentene; sulfite turpentine and other crude para-cymene; pine oil containing alpha-terpineol as the main constituent:
- 3806Rosin and resin acids, and derivatives thereof; rosin spirit and rosin oils; run gums:
- 3807Wood tar; wood tar oils; wood creosote; wood naphtha; vegetable pitch; brewers' pitch and similar preparations based on rosin, resin acids or on vegetable pitch
- 3808Insecticides, rodenticides, fungicides, herbicides, antisprouting 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, sulfur-treated bands, wicks and candles, and flypapers):
- 3809Finishing 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:
- 3810Pickling preparations for metal surfaces; fluxes and other auxiliary preparations for soldering, brazing or welding; soldering, brazing or welding powders and pastes consisting of metal and other materials; preparations of a kind used as cores or coatings for welding electrodes or rods:
- 3811Antiknock 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:
- 3812Prepared rubber accelerators; compound plasticizers for rubber or plastics, not elsewhere specified or included; antioxidizing preparations and other compound stabilizers for rubber or plastics:
- 3813Preparations and charges for fire extinguishers; charged fire-extinguishing grenades:
- 3814Organic composite solvents and thinners, not elsewhere specified or included; prepared paint or varnish removers:
- 3815Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included:
- 3816Refractory cements, mortars, concretes and similar compositions, including dolomite ramming mix, other than products of heading 3801:
- 3817Mixed alkylbenzenes and mixed alkylnaphthalenes, other than those of heading 2707 or 2902:
- 3818Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics
- 3819Hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing or containing less than 70 percent by weight of petroleum oils or oils obtained from bituminous minerals
- 3820Antifreezing preparations and prepared deicing fluids
- 3821Prepared culture media for development or maintenance of micro-organisms (including viruses and the like) or of plant, human or animal cells
- 3822Diagnostic 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 3006; certified reference materials:
- 3823Industrial monocarboxylic fatty acids; acid oils from refining; industrial fatty alcohols:
- 3824Prepared binders for foundry molds 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:
- 3825Residual 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:
- 3826Biodiesel and mixtures thereof, not containing or containing less than 70 percent by weight of petroleum oils or oils obtained from bituminous materials:
- 3827Mixtures containing halogenated derivatives of methane, ethane or propane, not elsewhere specified or included:
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Request a free auditSource: Harmonized Tariff Schedule of the United States, 2026 HTS Revision 20 (effective 2026-09-28), U.S. International Trade Commission (hts.usitc.gov), imported 2026-10-07. Reference only; not legal or customs advice or a binding classification. Additional duties under Chapter 99 may apply. ShipWave is not affiliated with the USITC or U.S. Customs and Border Protection.