| 28 | | | HS Code for Inorganic chemicals; inorganic or organic compounds of precious metals, radioactive elements, rare land metals or isotope metals |
| 2833 | | HS Code for Sulphates; alums; peroxosulphates (persulphates) |
| | 28332500 | Copper sulfate |
| | 28332700 | Barium sulfate |
| | 28332910 | Ferrous sulfate |
| | 28332920 | Chromium sulfate |
| | 28332930 | Zinc sulfate |
| | 28332990 | Other sulphates |
| | 28333010 | Potassium alum |
| | 28333090 | Other alum |
| | 28334000 | Persulfate |
| 2834 | | HS Code for Nitrites; nitrates |
| | 28341000 | Nitrite |
| | 28342110 | Fertilizer with potassium nitrate |
| | 28342190 | Non-fertilizer with potassium nitrate |
| | 28342910 | Cobalt nitrate |
| | 28342990 | Other nitrate |
| 2835 | | HS Code for Phosphinates (hypophosphites) phosphonates (phosphites) and phosphates; polyphosphates whether or not chemically |
| | 28351000 | Hypophosphite and phosphite |
| | 28352200 | Monosodium phosphate and disodium phosphate |
| | 28352400 | Potassium phosphate |
| | 28352510 | The positive feed grade dicalcium phosphate (dicalcium phosphate) |
| | 28352520 | Positive food grade calcium hydrogen phosphate (dicalcium phosphate) |
| | 28352590 | Other positive calcium hydrogen phosphate (dicalcium phosphate) |
| | 28352600 | Other calcium phosphate |
| | 28352910 | Trisodium phosphate |
| | 28352990 | Other phosphates |
Harmonized Tariff Schedule of China inquiry: textile
