| 1/00 | Fertilisers containing potassium (C05D 7/00 takes precedence) |
| 1/02 | Fertilisers containing potassium (C05D 7/00 takes precedence) Manufacture from potassium chloride or sulfate or double or mixed salts thereof |
| 1/04 | Fertilisers containing potassium (C05D 7/00 takes precedence) from minerals or volcanic rocks |
| 3/00 | Calcareous fertilisers (C05D 7/00 takes precedence) |
| 3/02 | Calcareous fertilisers (C05D 7/00 takes precedence) from limestone, calcium carbonate, calcium hydrate, slaked lime, calcium oxide, waste calcium compounds |
| 3/04 | Calcareous fertilisers (C05D 7/00 takes precedence) from blast-furnace slag or other slags containing lime or calcium silicates |
| 5/00 | Fertilisers containing magnesium (C05D 7/00 takes precedence) |
| 7/00 | Fertilisers producing carbon dioxide |
| 9/00 | Other inorganic fertilisers |
| 9/02 | Other inorganic fertilisers containing trace elements |
| 11/00 | Mixtures of fertilisers covered by more than one of main groups C05D 1/00-C05D 9/00 |