The key accounting rules applied in preparing these consolidated financial statements are presented as an element of specific explanatory notes to these consolidated financial statements. These rules were applied in all of the presented periods continuously, except for the application of the changes to Standards and Interpretations described in note 6.
Preparing consolidated financial statements in accordance with EU IFRS requires the Management Board to make certain assumptions and estimates that have an impact on the adopted accounting rules and the amounts shown in consolidated financial statements and notes to financial statements. Assumptions and estimates are based on the Management Board’s best knowledge regarding current and future events and activities. However, actual results may differ from forecasts. The estimated values presented in previous financial years do not have a material impact on the present interim period. The key areas where the Management Board’s estimates have considerable impact on consolidated financial statements are presented in the following explanatory notes:
| Notes describing significant estimates and assumptions | Note |
|---|---|
| Impairment of non-financial assets | chapter (without a number) |
| Tax | 12 |
| Property, plant and equipment | 14 |
| Intangible assets and goodwill | 15 |
| Right-of-use assets | 16 |
| Investment properties | 17 |
| CO2 emission allowances | 19 |
| Inventories | 20 |
| Energy origin certificates | 21 |
| Trade and other receivables | 22 |
| Assets and liabilities arising from contracts with customers | 24 |
| Cash and cash equivalents | 25 |
| Employee benefit liabilities | 32 |
| Provisions | 33 |
| Financial instruments and fair value | 35 |