Browse HS Codes
Search or browse the Harmonized System code hierarchy with CUSMA tariff rate comparisons.
Chapter 28 Headings
| HS Code | Description | MFN Rate | CUSMA Rate |
|---|---|---|---|
| 2801 | Fluorine, chlorine, bromine and iodine | Free | -- |
| 2802 | Sulphur; sublimed or precipitated, colloidal sulphur | Free | -- |
| 2803 | Carbon; carbon blacks and other forms of carbon n.e.c. | Free | -- |
| 2804 | Hydrogen, rare gases and other non-metals | 3.7% | Free |
| 2805 | Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury | 5.3% | Free |
| 2806 | Hydrogen chloride (hydrochloric acid); chlorosulphuric acid | Free | -- |
| 2807 | Sulphuric acid; oleum | Free | -- |
| 2808 | Nitric acid; sulphonitric acids | Free | -- |
| 2809 | Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined | Free | -- |
| 2810 | Oxides of boron; boric acids | 1.5% | Free |
| 2811 | Inorganic acids and other inorganic oxygen compounds of non-metals; n.e.c. in heading no. 2806 to 2810 | Free | -- |
| 2812 | Halides and halide oxides of non-metals | 3.7% | Free |
| 2813 | Sulphides of non-metals; commercial phosphorus trisulphide | 3.7% | Free |
| 2814 | Ammonia; anhydrous or in aqueous solution | Free | -- |
| 2815 | Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash) peroxides of sodium or potassium | Free | -- |
| 2816 | Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides of strontium or barium | 3.1% | Free |
| 2817 | Zinc; oxide and peroxide | Free | -- |
| 2818 | Aluminium oxide (including artificial corundum); aluminium hydroxide | Free | -- |
| 2819 | Chromium oxides and hydroxides | 3.7% | Free |
| 2820 | Manganese oxides | 4.7% | Free |
| 2821 | Iron oxides and hydroxides; earth colours containing 70% or more by weight of combined iron evaluated as Fe2o3 | 3.7% | Free |
| 2822 | Cobalt oxides and hydroxides; commercial cobalt oxides | 0.1% | Free |
| 2823 | Titanium oxides | 5.5% | Free |
| 2824 | Lead oxides; red lead and orange lead | 3% | Free |
| 2825 | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides | 3.7% | Free |
| 2826 | Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts | Free | -- |
| 2827 | Chlorides; chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides | 2.9% | Free |
| 2828 | Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites | 2.4% | Free |
| 2829 | Chlorates and perchlorates; bromates and perbromates; iodates and periodates | Free | -- |
| 2830 | Sulphides; polysulphides whether or not chemically defined | 3.7% | Free |
| 2831 | Dithionites and sulphoxylates | Free | -- |
| 2832 | Sulphites; thiosulphates | 1.5% | Free |
| 2833 | Sulphates; alums; peroxosulphates (persulphates) | Free | -- |
| 2834 | Nitrites; nitrates | 5.5% | Free |
| 2835 | Phosphinates (hypophosphites), phosphonates (phosphites), and phosphates; and polyphosphates, whether or not chemically defined | 3.1% | Free |
| 2836 | Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate | 1.2% | Free |
| 2837 | Cyanides, cyanide oxides and complex cyanides | Free | -- |
| 2839 | Silicates; commercial alkali metal silicates | 1.1% | Free |
| 2840 | Borates; peroxoborates (perborates) | 0.3% | Free |
| 2841 | Salts of oxometallic or peroxometallic acids | 2.4% | Free |
| 2842 | Salts of inorganic acids or peroxoacids, n.e.c. including aluminosilicates whether or not chemically defined, but excluding azides | 3.7% | Free |
| 2843 | Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals | 5.5% | Free |
| 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 | Free | -- |
| 2845 | Isotopes other than those of heading no. 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined | Free | -- |
| 2846 | Compounds, inorganic or organic, of rare-earth metals; of yttrium or of scandium or of mixtures of these metals | 5.5% | Free |
| 2847 | Hydrogen peroxide; whether or not solidified with urea | 3.7% | Free |
| 2849 | Carbides, whether or not chemically defined | 1.8% | Free |
| 2850 | Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading no. 2849 | Free | -- |
| 2852 | Inorganic or organic compounds of mercury, excluding amalgams, whether or not chemically defined | Free | -- |
| 2853 | Phosphides, chemically defined or not, not ferrophosphorus; other inorganic compounds n.e.c. (including distilled, conductivity water and water of like purity); liquid air, rare gases removed or not; compressed air; amalgams, not precious metal amalgams | 2.8% | Free |