13. Revenue and costs

13.1. Geographic and item structure of revenue from contracts with customers

13.2. Revenue from construction contracts as well as assets and liabilities due to the contracts

13.3. Other operating revenue

13.4. Revaluation of financial assets

13.5. Other operating costs

13.6. Financial revenue

13.7. Finance costs

13.8. Impairment of assets with indefinite useful life

13.9. Costs of materials and energy, and the value of goods and materials sold

12.2. Geographic structure of non-current assets

13.1. Geographic and item structure of revenue from contracts with customers