| 28 | | | HS Code for Inorganic chemicals; inorganic or organic compounds of precious metals, radioactive elements, rare land metals or isotope metals |
| 2837 | | HS Code for Cyanides cyanide oxides and complex cyanides |
| | 28371110 | Sodium cyanide |
| | 28371120 | Oxygen sodium cyanide |
| | 28371910 | Potassium cyanide |
| | 28371990 | Other oxygen cyanide and cyanide |
| | 28372000 | Cyanide complexes |
| 2839 | | HS Code for Silicates; commercial alkali metal silicates |
| | 28391100 | Metasilicate |
| | 28391910 | Sodium silicate |
| | 28391990 | Other salt |
| | 28399000 | Other silicates; commercial alkali metal silicate |
| 2840 | | HS Code for Borates; peroxoborates (perborates) |
| | 28401100 | Anhydrous sodium tetraborate |
| | 28401900 | Other sodium tetraborate |
| | 28402000 | Other borates |
| | 28403000 | Perborate |
| 2841 | | HS Code for Salts of oxometallic or peroxometallic acids |
| | 28413000 | Sodium dichromate |
| | 28415000 | Other chromate and dichromate, too chromate |
| | 28416100 | Potassium permanganate |
| | 28416910 | Lithium manganese oxide |
| | 28416990 | Manganite, other manganese salts and other permanganate |
| | 28417010 | Ammonium |
| | 28417090 | Other molybdate |
| | 28418010 | Ammonium paratungstate |
| | 28418020 | Sodium tungstate |
| | 28418030 | Calcium tungstate |
Harmonized Tariff Schedule of China inquiry: textile
