13.2. Costs of materials and energy, and the value of goods and materials sold
| 2023 | 2022 | |
| Materials consumption | (2,543,004) | (3,292,327) |
| Change in write-downs | (2,397) | (1,916) |
| Losses in tangible current assets | (1,374) | (6,898) |
| Energy consumption | (241,514) | (213,593) |
| Value of resold materials and trade goods | (435,068) | (414,764) |
| Result on hedging transactions | (16,253) | (3,521) |
| Total | (3,239,610) | (3,933,019) |