Section VI: Products of the Chemical or Allied Industries
HTS Chapter 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes
Chapter 28 of the US Harmonized Tariff Schedule has 50 headings. Open a heading to see every subheading, duty rate and 10-digit statistical line.
- 2801Fluorine, chlorine, bromine and iodine:
- 2802Sulfur, sublimed or precipitated; colloidal sulfur
- 2803Carbon (carbon blacks and other forms of carbon not elsewhere specified or included)
- 2804Hydrogen, rare gases and other nonmetals:
- 2805Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury:
- 2806Hydrogen chloride (Hydrochloric acid); chlorosulfuric acid:
- 2807Sulfuric acid; oleum
- 2808Nitric acid; sulfonitric acids
- 2809Diphosphorus pentaoxide; phosphoric acid;polyphosphoric acids, whether or not chemically defined:
- 2810Oxides of boron; boric acids
- 2811Other inorganic acids and other inorganic oxygen compounds of nonmetals:
- 2812Halides and halide oxides of nonmetals:
- 2813Sulfides of nonmetals; commercial phosphorus trisulfide:
- 2814Ammonia, anhydrous or in aqueous solution:
- 2815Sodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium or potassium:
- 2816Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium:
- 2817Zinc oxide; zinc peroxide
- 2818Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide:
- 2819Chromium oxides and hydroxides:
- 2820Manganese oxides:
- 2821Iron oxides and hydroxides; earth colors containing 70 percent or more by weight of combined iron evaluated as Fe2O3:
- 2822Cobalt oxides and hydroxides; commercial cobalt oxides
- 2823Titanium oxides
- 2824Lead oxides; red lead and orange lead:
- 2825Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides:
- 2826Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts:
- 2827Chlorides, chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides:
- 2828Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites:
- 2829Chlorates and perchlorates; bromates and perbromates; iodates and periodates:
- 2830Sulfides; polysulfides, whether or not chemically defined:
- 2831Dithionites and sulfoxylates:
- 2832Sulfites; thiosulfates:
- 2833Sulfates; alums; peroxosulfates (persulfates):
- 2834Nitrites; nitrates:
- 2835Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined:
- 2836Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate:
- 2837Cyanides, cyanide oxides and complex cyanides:
- 2839Silicates; commercial alkali metal silicates:
- 2840Borates; peroxoborates (perborates):
- 2841Salts of oxometallic or peroxometallic acids:
- 2842Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides:
- 2843Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals:
- 2844Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes) and their compounds; mixtures and residues containing these products:
- 2845Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined:
- 2846Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium, or of mixtures of these metals:
- 2847Hydrogen peroxide, whether or not solidified with urea
- 2849Carbides, whether or not chemically defined:
- 2850Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849:
- 2852Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams:
- 2853Phosphides, whether or not chemically defined, excluding ferrophosphorous; 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:
Free tools
Free customs and shipping tools
HTS Code Lookup
Search the full US Harmonized Tariff Schedule by product or code, with duty rates.
De Minimis & Tariff Checker
US de minimis status and the Section 301/232 tariffs that may apply to an import.
Landed Cost & Duty Calculator
Estimate import duties, taxes and fees so you can price DDP.
Commercial Invoice Generator
Make a customs-ready commercial invoice with HS codes, plus CN 22/CN 23-style declarations.
Want us to find the money leaking out of your shipping? Get a free profit-leak audit.
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.