HTS chapter · section VI
Chapter 28
Products of the chemical or allied industries
Chapter 28 of the Harmonized Tariff Schedule sits in section VI (products of the chemical or allied industries). It has 50 headings and 274 eight-digit tariff lines.
80 of its 274 lines with a percentage rate are duty-free at the general rate (29%) and 194 are dutiable, from duty-free up to 5.5%. The median line pays 3.1%.
The spread of 5.5 percentage points between the cheapest and dearest lines makes misclassification expensive here.
The most finely divided heading is 2827 (chlorides, chloride oxides and chloride hydroxides; bromides and bromide…), with 23 lines; fine division usually means the rates or the trade statistics differ enough to be worth separating.
8 of its 50 headings are entirely duty-free at the general rate, including 2802 (sulfur, sublimed or precipitated; colloidal…), 2803 (carbon (carbon blacks and other forms of…) and 2807 (sulfuric acid; oleum).
The heading with the highest median rate is 2831 (dithionites and sulfoxylates) at 5.5%.
Headings
| Heading | Description | Lines | Free | Median rate |
|---|---|---|---|---|
| 2801 | Fluorine, chlorine, bromine and iodine | 4 | 2 | 1.85% |
| 2802 | Sulfur, sublimed or precipitated; colloidal sulfur | 1 | 1 | duty-free |
| 2803 | Carbon (carbon blacks and other forms of carbon not elsewhere specified or included) | 1 | 1 | duty-free |
| 2804 | Hydrogen, rare gases and other nonmetals | 12 | 5 | 3.7% |
| 2805 | Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury | 7 | 1 | 3.7% |
| 2806 | Hydrogen chloride (Hydrochloric acid); chlorosulfuric acid | 2 | 1 | 2.1% |
| 2807 | Sulfuric acid; oleum | 1 | 1 | duty-free |
| 2808 | Nitric acid; sulfonitric acids | 1 | 1 | duty-free |
| 2809 | Diphosphorus pentaoxide; phosphoric acid;polyphosphoric acids, whether or not chemically defined | 2 | 2 | duty-free |
| 2810 | Oxides of boron; boric acids | 1 | 0 | 1.5% |
| 2811 | Other inorganic acids and other inorganic oxygen compounds of nonmetals | 12 | 5 | 3% |
| 2812 | Halides and halide oxides of nonmetals | 9 | 1 | 3.7% |
| 2813 | Sulfides of nonmetals; commercial phosphorus trisulfide | 4 | 2 | 1.85% |
| 2814 | Ammonia, anhydrous or in aqueous solution | 2 | 2 | duty-free |
| 2815 | Sodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium or potassium | 4 | 3 | duty-free |
| 2816 | Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium | 3 | 0 | 3.1% |
| 2817 | Zinc oxide; zinc peroxide | 1 | 1 | duty-free |
| 2818 | Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide | 4 | 3 | duty-free |
| 2819 | Chromium oxides and hydroxides | 2 | 0 | 3.7% |
| 2820 | Manganese oxides | 2 | 0 | 4.7% |
| 2821 | Iron oxides and hydroxides; earth colors containing 70 percent or more by weight of combined iron evaluated as Fe2O3 | 2 | 0 | 4.6% |
| 2822 | Cobalt oxides and hydroxides; commercial cobalt oxides | 1 | 0 | 0.1% |
| 2823 | Titanium oxides | 1 | 0 | 5.5% |
| 2824 | Lead oxides; red lead and orange lead | 4 | 0 | 4.1% |
| 2825 | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides | 16 | 3 | 3.7% |
| 2826 | Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts | 7 | 2 | 3.1% |
| 2827 | Chlorides, chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides | 23 | 5 | 3.7% |
| 2828 | Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites | 2 | 0 | 3.05% |
| 2829 | Chlorates and perchlorates; bromates and perbromates; iodates and periodates | 6 | 3 | 1.55% |
| 2830 | Sulfides; polysulfides, whether or not chemically defined | 5 | 1 | 3% |
| 2831 | Dithionites and sulfoxylates | 3 | 1 | 5.5% |
| 2832 | Sulfites; thiosulfates | 4 | 0 | 2.3% |
| 2833 | Sulfates; alums; peroxosulfates (persulfates) | 17 | 4 | 1.6% |
| 2834 | Nitrites; nitrates | 7 | 2 | 3.5% |
| 2835 | Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined | 12 | 3 | 1.85% |
| 2836 | Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate | 13 | 2 | 1.9% |
| 2837 | Cyanides, cyanide oxides and complex cyanides | 4 | 2 | 0.55% |
| 2839 | Silicates; commercial alkali metal silicates | 4 | 0 | 2.1% |
| 2840 | Borates; peroxoborates (perborates) | 4 | 0 | 2% |
| 2841 | Salts of oxometallic or peroxometallic acids | 14 | 0 | 3.7% |
| 2842 | Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides | 3 | 0 | 3.3% |
| 2843 | Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals | 5 | 0 | 3.7% |
| 2844 | Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes) and their compounds; mixtures and… | 12 | 8 | duty-free |
| 2845 | Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined | 5 | 5 | duty-free |
| 2846 | Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium, or of mixtures of these metals | 4 | 2 | 1.85% |
| 2847 | Hydrogen peroxide, whether or not solidified with urea | 1 | 0 | 3.7% |
| 2849 | Carbides, whether or not chemically defined | 7 | 1 | 3.7% |
| 2850 | Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849 | 5 | 1 | 4.9% |
| 2852 | Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams | 4 | 2 | 1.5% |
| 2853 | Phosphides, whether or not chemically defined, excluding ferrophosphorous; other inorganic compounds (including distilled or conductivity water and water of… | 4 | 1 | 2.7% |