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| Year | Emissions | Baseline | Gap | ACCUs | SMCs | Compliance |
|---|---|---|---|---|---|---|
| 24–25 | 130 kt | 604 kt | -474 kt | — | — | Under baseline |
Gudai-Darri Mine is a metal ore mining facility operated by Mount Bruce Mining Pty Ltd in WA. Like all covered facilities, iron ore, gold and base metal mining uses significant diesel and electricity. Under Australia's Safeguard Mechanism, Gudai-Darri Mine must keep its annual emissions below a stepping-down baseline — or purchase carbon credits to cover any overage.
In 2023–24, Gudai-Darri Mine came in under its baseline — reporting emissions of 130 kt against an obligation of 604 kt, a surplus of 474 kt. Facilities that come in under baseline can generate Safeguard Mechanism Credits (SMCs), which can be sold to facilities that need to cover an overage. Gudai-Darri Mine generated 474,391 SMCs in 2023–24.
Across the metal ore mining sector, 8 of 8 covered facilities reported emissions above their baseline in 2023–24. The table below compares Gudai-Darri Mine with other metal ore mining facilities covered by the Safeguard Mechanism.
| Facility | Operator | State | Emissions | vs Baseline | Compliance |
|---|---|---|---|---|---|
| Brockman 2 / Nammuldi Mines | Hamersley Iron Pty. Limited | WA | 312 kt | +127 kt | ACCU buyer |
| NMK01 Nickel West Mt Keith Facility | BHP NICKEL WEST PTY LTD | WA | 201 kt | +101 kt | ACCU buyer |
| Brockman 4 Mine | Hamersley Iron Pty. Limited | WA | 236 kt | +94 kt | ACCU buyer |
| Fimiston Operations | KALGOORLIE CONSOLIDATED GOLD MINES PTY LTD | WA | 230 kt | +93 kt | ACCU buyer |
| Mount Isa Mines Copper and Zinc Operations | MOUNT ISA MINES LIMITED | QLD | 410 kt | +82 kt | ACCU buyer |
| Paraburdoo Mine | Hamersley Iron Pty. Limited | WA | 164 kt | +64 kt | ACCU buyer |
| Telfer Gold Mine | Newcrest Mining Limited | WA | 354 kt | +63 kt | ACCU buyer |
| Solomon Mine | FMG SOLOMON PTY LTD | WA | 452 kt | +62 kt | ACCU + SMC |