28 | | | HS Code for Inorganic chemicals; inorganic or organic compounds of precious metals, radioactive elements, rare land metals or isotope metals |
| 2806 | | HS Code for Hydrogen chloride (hydrochloric acid); |
| | 28061000 | Hydrogen chloride (hcl) |
| | 28062000 | Chlorosulfonic acid |
| 2807 | | HS Code for Sulphuric acid; oleum |
| | 28070000 | Sulfuric acid, fuming sulfuric |
| 2808 | | HS Code for Nitric acid; sulphonitric acids |
| | 28080000 | Nitric acid, nitrate and sulfonate |
| 2809 | | HS Code for Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids whether or not chemically defined |
| | 28091000 | Phosphorus pentoxide |
| | 28092011 | Food grade phosphoric acid |
| | 28092019 | Phosphoric acid and other metaphosphoric acid, pyrophosphoric acid |
| | 28092090 | Other multi-acid |
| 2810 | | HS Code for Oxides of boron; boric acids |
| | 28100010 | Boron oxide |
| | 28100020 | Boric acid |
| 2811 | | HS Code for Other inorganic acids and other in-organic oxygen compounds of non-metals |
| | 28111100 | Hydrofluoric acid |
| | 28111200 | Hydrocyanic acid |
| | 28111920 | Hydrogen selenide |
| | 28111990 | Other inorganic acids |
| | 28112100 | Carbon dioxide |
| | 28112210 | Silica silicone |
| | 28112290 | Other silica |
| | 28112900 | Other non-metallic inorganic oxide |
| 2812 | | HS Code for Halides and halide oxides of non- metals |
| | 28121100 | Carbonyl dichloride (phosgene) |
| | 28121200 | Phosphorus oxychloride |
| | 28121300 | Phosphorus trichloride |
| | 28121400 | Phosphorus pentachloride |
| | 28121500 | Sulfur monochloride (sulfur monochloride) |