in PLN millions, unless otherwise stated
Other property, plant and equipment are recognised at cost less accumulated depreciation and accumulated impairment losses. Depreciation is done using the straight-line method.
For individual groups of fixed assets, the following useful lives have been adopted:
| The Group | Total useful lives | 
|---|---|
| Buildings | 25-60 years | 
| Technical equipment and machines | 4-15 years | 
| Motor vehicles | 3-14 years | 
| Other fixed assets | 5-10 years | 
Intangible assets presented as “other intangible assets” include in particular: acquired property rights not related to mining operations and software. These assets are measured at cost less any accumulated amortisation and impairment losses.
Intangible assets are amortised using the straight-line method over their anticipated useful lives. The useful lives of the main groups of intangible assets are as follows:
| The Group | Total useful lives | 
|---|---|
| Acquired property rights not related to mining activities | 5-50 years | 
| Software | 2-5 years | 
| Other intangible assets | 40-50 years | 
| Property, plant and equipment | |||||
|---|---|---|---|---|---|
| Buildings and land | Technical equipment, machines, motor vehicles and other fixed assets | Fixed assets under construction | Intangible assets | Total | |
| As at 31 December 2018 | |||||
| Gross carrying amount | 2 440 | 2 331 | 194 | 555 | 5 520 | 
| Accumulated depreciation/amortisation | (696) | (1 301) | – | (207) | (2 204) | 
| Impairment losses | (161) | (19) | 1 | (124) | (303) | 
| Net carrying amount | 1 583 | 1 011 | 195 | 224 | 3 013 | 
| Change in accounting policies – application of IFRS 16 | |||||
| Gross carrying amount | 187 | 24 | – | (117) | 94 | 
| Accumulated depreciation/amortisation | – | – | – | 35 | 35 | 
| Impairment losses | – | – | – | 4 | 4 | 
| As at 1 January 2019 | |||||
| Gross carrying amount | 2 627 | 2 355 | 194 | 438 | 5 614 | 
| Accumulated depreciation/amortisation | (696) | (1 301) | – | (172) | (2 169) | 
| Impairment losses | (161) | (19) | 1 | (120) | (299) | 
| Net carrying amount | 1 770 | 1 035 | 195 | 146 | 3 146 | 
| Changes in 2019 net | |||||
| Settlement of fixed assets under construction | 103 | 281 | (384) | 5 | 5 | 
| Purchases | – | – | 281 | 30 | 311 | 
| Self-constructed | – | – | 32 | 2 | 34 | 
| Leases – new contracts, modification of existing contracts | 3 | 11 | – | – | 14 | 
| [Note 4.1] Depreciation/amortisation, of which: | (126) | (213) | – | (25) | (364) | 
| own fixed assets | (125) | (200) | – | (25) | (350) | 
| right-to-use (leased fixed assets) | (1) | (13) | – | – | (14) | 
| [Note 4.4] (Recognition)/reversal of impairment losses | (84) | (117) | (1) | (9) | (211) | 
| Other changes | (33) | 26 | 50 | 6 | 49 | 
| As at 31 December 2019 | |||||
| Gross carrying amount | 2 708 | 2 600 | 173 | 479 | 5 960 | 
| Accumulated depreciation/amortisation | (831) | (1 441) | – | (195) | (2 467) | 
| Impairment losses | (244) | (136) | – | (129) | (509) | 
| Net carrying amount, of which: | 1 633 | 1 023 | 173 | 155 | 2 984 | 
| own fixed assets and intangible assets | 1 452 | 972 | 173 | 155 | 2 752 | 
| leased assets (right-to-use assets) | 181 | 51 | – | – | 232 | 
| Changes in 2020 net | |||||
| Settlement of fixed assets under construction | 97 | 240 | (337) | – | – | 
| Purchases | – | – | 299 | 21 | 320 | 
| Self-constructed | – | – | 120 | 1 | 121 | 
| Leases – new contracts, modification of existing contracts | (1) | 18 | – | – | 17 | 
| [Note 4.1] Depreciation/amortisation, of which: | (70) | (203) | – | (21) | (294) | 
| own fixed assets and intangible assets | (69) | (185) | – | (21) | (275) | 
| right-to-use (leased fixed assets) | (1) | (18) | – | – | (19) | 
| [Note 4.4] (Recognition)/reversal of impairment losses | (96) | (45) | (2) | (13) | (156) | 
| Other changes | (20) | (6) | 34 | (2) | 6 | 
| As at 31 December 2020 | |||||
| Gross carrying amount | 2 782 | 2 754 | 288 | 491 | 6 315 | 
| Accumulated depreciation/amortisation | (899) | (1 549) | – | (207) | (2 655) | 
| Impairment losses | (340) | (178) | (1) | (143) | (662) | 
| Net carrying amount, of which: | 1 543 | 1 027 | 287 | 141 | 2 998 | 
| own fixed assets and intangible assets | 1 377 | 976 | 287 | 141 | 2 781 | 
| leased fixed assets (right-to-use) | 166 | 51 | – | – | 217 |