Original EA Amendment

Location (MGA94, zone 55)

Maximum Disturbance Area (ha)

Mining Lease

Mine Domain

Mine feature

Latitude (GDA94)

Longitude (GDA94)

ML5660

Non-Potentially Acid Generating (NPAG) stockpile

ML5589 ML5648

-23.64401 150.36947

1.1

Stockpiles

-23.64460 -23.64522

150.37638 150.37407

Slag Stockpiles

ML5659

3.78

ML5589 ML5612 ML5613 ML5621 ML5622 ML5623 ML5648 ML5649 ML5659 ML5660

TBD, to be provided by 30 June 2025

TBD, to be provided by 30 June 2025

Exploration

5

Surface Exploration

Justification for the changes described in Table 7 are as follows:

• Inclusion of the Upper Mundic Gully TSF in Table F1 is required to authorise the mine feature

as an operational activity. The proposed operational activities are intended to match

Sandstone Gully TSF however are updated to reflect better nomenclature in that a “tailings

dam wall” should be called a “tailings dam embankment”.

Table 7. Proposed Table F1 Replacement

Mine Feature

Operational Activities

Process Plant & ROM Pad

Mineral processing

Pipe Corridor

Transport of process water and tailings.

Shape surface to minimise runoff of contaminated water. Install diversions to minimise clean waters entering location Remove overlying waste. Recover tailings for processing. Remove and relocate any waste in the remnant walls that directly impacts the mining of the tailings. Leave stable batters on any remaining waste dumps or remnant walls. Remove overlying waste. Recover tailings for processing. Remove and relocate any waste in the remanent walls that directly impacts the mining of the tailings. Leave stable batters on any remaining waste dumps or remnant walls. Remove overlying waste. Recover tailings for processing. Remove and relocate any waste in the remanent walls that directly impacts the mining of the tailings. Leave stable batters on any remaining waste dumps or remnant walls.

Part of No. 2 Mill Tailings Dam

Mundic Sulphide Tails

Red Oxide Tails

Shape surface to minimise runoff of contaminated water. Install diversions to minimise clean waters entering location. Remove overlying waste.

Part of Shepherds Gully Tails

40

Wulguru Technical Services Pty Ltd – Supporting Information Report

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