30a. Reconciliation of change in receivables
| in PLN thousand | For the year ended 31 December 2017 | For the year ended 31 December 2016 |
| Change in receivables in the statement of financial position: | 1 582 | 8 341 |
| Long-term receivables | (410) | 1 122 |
| Trade and other receivables | 1 992 | 7 219 |
| Change in receivables due from sale of tangible fixed assets | (632) | (664) |
| Change in receivables in the statement of cash flows | 950 | 7 677 |
30b. Reconciliation of change in liabilities
| in PLN thousand | For the year ended 31 December 2017 | For the year ended 31 December 2016 |
| Change in liabilities in the statement of financial position | 2 031 | 1 014 |
| Trade and other payables (long-term and short-term) | (1 318) | (5 784) |
| Deferred income | (1 115) | (3 194) |
| Provisions (long-term and short-term) | 5 382 | 12 588 |
| Other non-current liabilities | (918) | (2 596) |
| Change in liabilities due to acquisition of tangible fixed assets | 11 311 | 783 |
| Change in liabilities due to grants | (1 941) | - |
| Change in liabilities in the statement of cash flows | 11 401 | 1 797 |
30c. Reconciliation of acquisition of intangible assets and property, plant and equipment
| in PLN thousand | For the year ended 31 December 2017 | For the year ended 31 December 2016 |
| Capital expenditures | (54 292) | (120 620) |
| Additions to intangible assets, property, plant and equipment, and investment property (movement tables) | (54 292) | (120 913) |
| Prepayments for property, plant and equipment | - | 293 |
| Change in liabilities due to acquisition of tangible fixed assets | (11 311) | (783) |
| Interest expense on investment loan capitalised to property, plant and equipment | - | (469) |
| Acquisition of intangible assets and property, plant and equipment in the statement of cash flows | (65 603) | (121 872) |
30d. Reconciliation of Other adjustments
| in PLN thousand | For the year ended 31 December 2017 | For the year ended 31 December 2016 |
| The valuation of contracts to hedge foreign currency exchange rate | (1) | 1 |
| Finance lease | (72) | 118 |
| Carbon-dioxide emission rights acquired for redemption | - | 6 524 |
| Accrued interests | (31) | (31) |
| Other comrehensive income | (124) | (72) |
| Other adjustments in the statement of cash flows | (228) | 6 540 |
