Operational highlights
| (kt) | 1Q 2021 | 4Q 2020 | ∆ kt | ∆ % | 1Q 2021 | 1Q 2020 | ∆ kt | ∆ % |
| Crude steel | 2,129 | 2,118 | 11 | 1% | 2,129 | 2,170 | -41 | -2% |
| Iron ore concentrate (total) | 7,795 | 7,684 | 111 | 1% | 7,795 | 7,606 | 189 | 2% |
| Coking coal concentrate (total) | 990 | 633 | 357 | 56% | 990 | 842 | 148 | 18% |