| Year ended December 31, 2021 |
Year ended December 31, 2020 |
|
|---|---|---|
| Cost of production fuel | 4,831 | 4,144 |
| Use of repair and operation materials | 457 | 489 |
| Use of energy | 333 | 252 |
| Other | 355 | 296 |
| TOTAL MATERIALS AND ENERGY | 5,976 | 5,181 |
7.2.2 Materials and energy
| Year ended December 31, 2021 |
Year ended December 31, 2020 |
|
|---|---|---|
| Cost of production fuel | 4,831 | 4,144 |
| Use of repair and operation materials | 457 | 489 |
| Use of energy | 333 | 252 |
| Other | 355 | 296 |
| TOTAL MATERIALS AND ENERGY | 5,976 | 5,181 |