| Nace | Description | Number of Company |
|---|---|---|
| 23.49.01 | Manufacture of ceramic products for agricultural purposes and used for transportation or packaging of goods (ceramic pots, jars, etc. and troughs, boats, etc.) | 5 |
| 23.49.02 | Manufacture of other ceramic goods not elsewhere classified not used in construction works (including non-decorative ceramic pots) | 14 |
| 23.51.01 | Manufacture of cement (cement clinker, portland cement, aluminous cement (bauxite cement), slag cement, super phosphate cements and similar water-resistant cements) | 50 |
| 23.52.01 | Manufacture of quicklime, slaked lime and water resistant lime | 17 |
| 23.52.02 | Manufacture of gypsum from hydrated or slaked sulfate | 26 |
| 23.52.03 | Manufacture of burnt (calcined) or agglomerated dolomite | 5 |
| 23.61.01 | Manufacture of prefabricated structural elements from cement, concrete or artificial stones (including those from aerated concrete and limestone) | 112 |
| 23.61.02 | Manufacture of construction products such as tiles, slabs, bricks, pipes, etc. from cement, concrete or artificial stones | 158 |
| 23.61.03 | Manufacture of prefabricated buildings made of concrete | 16 |
| 23.62.01 | Manufacture of plaster products for construction purposes (papier mache, sheets, boards, panels, etc.) | 119 |
