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| Year | Emissions | Baseline | Gap | ACCUs | SMCs | Compliance |
|---|---|---|---|---|---|---|
| 24–25 | 127 kt | 100 kt | +27 kt | — | — | Pending |
SIMEC Mining - Middleback Range Iron Ore Mine (Whyalla) is a metal ore mining facility operated by ONESTEEL MANUFACTURING PTY LIMITED in SA. Like all covered facilities, iron ore, gold and base metal mining uses significant diesel and electricity. Under Australia's Safeguard Mechanism, SIMEC Mining - Middleback Range Iron Ore Mine (Whyalla) must keep its annual emissions below a stepping-down baseline — or purchase carbon credits to cover any overage.
In 2023–24, SIMEC Mining - Middleback Range Iron Ore Mine (Whyalla) reported emissions of 127 kt against a baseline obligation of 100 kt — an overage of 27 kt. The facility has not yet surrendered credits to cover this overage — this may indicate an excess emissions situation or a multi-year arrangement not yet reflected in the published data.
Across the metal ore mining sector, 8 of 8 covered facilities reported emissions above their baseline in 2023–24. The table below compares SIMEC Mining - Middleback Range Iron Ore Mine (Whyalla) 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 |