HTS Chapter 28 tariff rates (headings 2801–2853), 2026
Chapter 28 has 274 tariff lines across 50 headings. 80 (29%) enter duty-free at the general (MFN) rate, and 241 are on a Section 301 list, so products of China pay an extra duty on top.
274 tariff lines, USITC 2026HTSRev19. Specific or compound = a rate per unit (e.g. ¢/kg), not a percentage.
Section 301 China lists in chapter 28
| List | Duty for products of China | Lines |
|---|---|---|
| List 1 | Base rate plus 25% | 4 |
| List 3 | Base rate + 25% | 230 |
| List 4A | Base rate + 7.5% | 7 |
| List 4B | Base rate + 15% (suspended, not collected) | 1 |
8 lines also carry a 2024 four-year-review increase (HTS U.S. note 31), several with future effective dates.
Highest general duty rates in chapter 28
| HTS code | Description | General rate | Section 301 |
|---|---|---|---|
2801.30.20.00 | Bromine | 5.5% | List 3 (+25%) |
2804.69.50.00 | Other | 5.5% | none |
2805.19.90 | Other | 5.5% | List 3 (+25%) |
2821.20.00.00 | Earth colors | 5.5% | List 3 (+25%) |
2823.00.00.00 | Titanium oxides | 5.5% | List 3 (+25%) |
2824.90.10.00 | Lead suboxide (leady litharge) | 5.5% | List 3 (+25%) |
All headings in chapter 28
| Heading | Description | Lines | Duty-free | Top rate | On 301 |
|---|---|---|---|---|---|
2801 | Fluorine, chlorine, bromine and iodine: | 4 | 2 | 5.5% | 4 |
2802 | Sulfur, sublimed or precipitated; colloidal sulfur | 1 | 1 | 0% | 1 |
2803 | Carbon (carbon blacks and other forms of carbon not elsewhere specified or included) | 1 | 1 | 0% | 1 |
2804 | Hydrogen, rare gases and other nonmetals: | 12 | 5 | 5.5% | 8 |
2805 | Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury: | 7 | 1 | 5.5% | 6 |
2806 | Hydrogen chloride (Hydrochloric acid); chlorosulfuric acid: | 2 | 1 | 4.2% | 2 |
2807 | Sulfuric acid; oleum | 1 | 1 | 0% | 1 |
2808 | Nitric acid; sulfonitric acids | 1 | 1 | 0% | 1 |
2809 | Diphosphorus pentaoxide; phosphoric acid;polyphosphoric acids, whether or not chemically defined: | 2 | 2 | 0% | 2 |
2810 | Oxides of boron; boric acids | 1 | 0 | 1.5% | 1 |
2811 | Other inorganic acids and other inorganic oxygen compounds of nonmetals: | 12 | 5 | 4.2% | 12 |
2812 | Halides and halide oxides of nonmetals: | 9 | 1 | 3.7% | 9 |
2813 | Sulfides of nonmetals; commercial phosphorus trisulfide: | 4 | 2 | 3.7% | 4 |
2814 | Ammonia, anhydrous or in aqueous solution: | 2 | 2 | 0% | 2 |
2815 | Sodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium or potassium: | 4 | 3 | 3.7% | 4 |
2816 | Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium: | 3 | 0 | 4.2% | 2 |
2817 | Zinc oxide; zinc peroxide | 1 | 1 | 0% | 1 |
2818 | Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide: | 4 | 3 | 1.3% | 3 |
2819 | Chromium oxides and hydroxides: | 2 | 0 | 3.7% | 2 |
2820 | Manganese oxides: | 2 | 0 | 4.7% | 2 |
2821 | Iron oxides and hydroxides; earth colors containing 70 percent or more by weight of combined iron evaluated as Fe2O3: | 2 | 0 | 5.5% | 2 |
2822 | Cobalt oxides and hydroxides; commercial cobalt oxides | 1 | 0 | 0.1% | 1 |
2823 | Titanium oxides | 1 | 0 | 5.5% | 1 |
2824 | Lead oxides; red lead and orange lead: | 4 | 0 | 5.5% | 4 |
2825 | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides: | 16 | 3 | 5.5% | 12 |
2826 | Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts: | 7 | 2 | 4.1% | 6 |
2827 | Chlorides, chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides: | 23 | 5 | 5.5% | 20 |
2828 | Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites: | 2 | 0 | 3.7% | 2 |
2829 | Chlorates and perchlorates; bromates and perbromates; iodates and periodates: | 6 | 3 | 3.7% | 5 |
2830 | Sulfides; polysulfides, whether or not chemically defined: | 5 | 1 | 3.7% | 5 |
2831 | Dithionites and sulfoxylates: | 3 | 1 | 5.5% | 3 |
2832 | Sulfites; thiosulfates: | 4 | 0 | 3.1% | 4 |
2833 | Sulfates; alums; peroxosulfates (persulfates): | 17 | 4 | 5.5% | 17 |
2834 | Nitrites; nitrates: | 7 | 2 | 5.5% | 7 |
2835 | Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined: | 12 | 3 | 4.1% | 12 |
2836 | Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate: | 13 | 2 | 5.5% | 13 |
2837 | Cyanides, cyanide oxides and complex cyanides: | 4 | 2 | 1.7% | 4 |
2839 | Silicates; commercial alkali metal silicates: | 4 | 0 | 3.1% | 4 |
2840 | Borates; peroxoborates (perborates): | 4 | 0 | 3.7% | 4 |
2841 | Salts of oxometallic or peroxometallic acids: | 14 | 0 | 5.5% | 11 |
2842 | Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides: | 3 | 0 | 3.7% | 3 |
2843 | Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals: | 5 | 0 | 5.5% | 5 |
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: | 12 | 8 | 5.5% | 5 |
2845 | Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined: | 5 | 5 | 0% | 5 |
2846 | Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium, or of mixtures of these metals: | 4 | 2 | 5.5% | 0 |
2847 | Hydrogen peroxide, whether or not solidified with urea | 1 | 0 | 3.7% | 1 |
2849 | Carbides, whether or not chemically defined: | 7 | 1 | 5.5% | 4 |
2850 | Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849: | 5 | 1 | 5.5% | 5 |
2852 | Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams: | 4 | 2 | 3% | 4 |
2853 | Phosphides, 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: | 4 | 1 | 2.8% | 4 |
General rates apply to most countries; free-trade partners can qualify for the special rate, and Column 2 applies to a few countries. Other duties (Section 232, antidumping/countervailing, other Chapter 99 measures) can also apply. Always confirm a classification with CBP or a licensed customs broker.
How to check any single code in seconds: How to check any US tariff rate by HTS code. Chapter 27 · Chapter 29 · All chapters