in PLN millions, unless otherwise stated
| from 1 January 2020 to 31 December 2020 |
from 1 January 2019 to 31 December 2019 |
|
|---|---|---|
| Purchases | (1 643) | (1 590) |
| Self-constructed fixed assets | (980) | (909) |
| Stripping costs of surface mines | (224) | (376) |
| Costs of external financing | (152) | (141) |
| Change in liabilities due to purchases | (134) | 76 |
| Other | 73 | 68 |
| Total* | (3 060) | (2 872) |