| Operating revenue | 18,682.6a | 21,523.71a |
| Operating costs | -15,787.61a | -16,830.72a |
| Taxes and surcharges | -196.31a | -198.15a |
| Selling expenses | -51.97a | -119.75a |
| General and administrative expenses | -327.56a | -302.2a |
| Research and development expenses | -604.79a | -596.75a |
| Financial expenses | -407.49a | -482.89a |
| Interest expenses | -569.81a | -590.66a |
| Interest income | 126.04a | 102.64a |
| Other income | 121.14a | 166.94a |
| Investment income | 51.8a | 27.72a |
| Gains on investment in associates | 18.63a | 18.16a |
| Gains from changes in fair value | 1.02a | 0.63a |
| Gains (losses) on credit impairment | 71.53a | -77.81a |
| Asset impairment losses | -356.22a | -52.29a |
| Losses on disposal of assets | -65.98a | -7.09a |
| Operating profit | 1,130.16a | 3,051.36a |
| Non-operating income | 4.73a | 4.1a |
| Non-operating expenses | -6.38a | -3.65a |
| Total profit | 1,128.51a | 3,051.81a |
| Income tax expense | -112.38a | -288.78a |
| Net profit | 1,016.13a | 2,763.03a |
| Classification by operating continuity | — | — |
| Net profit from continuing operations | 1,016.13a | 2,763.03a |
| Classification by ownership attribution | — | — |
| Net profit attributable to shareholders of the parent company | 1,006.6a | 2,759.69a |
| Profit or loss attributable to minority interests | 9.53a | 3.34a |