The gold and copper deposits on the PGM (Peak Gold Mines) properties in the Cobar Gold Field can be characterized based on their own unique mineralization and alteration signatures. The shear zones which host the mineralization include the Peak-Perseverance Shear, Blue Shear, Lady Greaves Shear, and the GCF (Great Chesney Fault).

The deposit groupings are as follows:
- Group 1 - Peak and Perseverance;
- Group 2 - New Occidental, Chesney, and New Cobar;
- Group 3 - Gladstone and Great Cobar.

THE NEW COBAR
Deposit Setting and Morphology The New Cobar gold deposit is located approximately 2.5 km north of the New Occidental Mine on the GCF. The deposit flanks a pronounced bend in the contact thrust and occurs on the southwestern side of a broad silicified ridge. At its northern end, the New Cobar mineralization is only 20 m from the contact thrust but diverges rapidly to the south and is up to 150 m from the thrust at its southern extent.

Mineralization is characterized by a stockwork of pyrrhotite-chalcopyrite-gold veins, which overprint an older quartz-magnetite vein stockwork. Both stockworks are characterized by gradational margins. The mineralization is developed over a strike length of some 500 m, with a central zone 300 m long by up to 35 m wide that strikes north-south, dips steeply to the east, and plunges steeply to the north, parallel to regional cleavage. Bedding dips steeply to the west.

The New ........

Peak operates two distinct underground mines, each with a number of separate deposits:
- South Mine (Peak Complex) - Peak, Kairos (Peak Deeps), Chronos, S400, Perseverance;
- North Mine (New Cobar Complex) - New Cobar, Jubilee, Chesney, Great Cobar.

Peak has been successfully operating for more than 20 years so the mining methods and parameters are well established. The mining methods are a combination of long hole stope retreat with loose rock fill, modified Avoca mining, and transverse sequential mining with cement and loose rock fill.

The mining method is varied depending on the orebody. Long hole open stoping is predominantly used in the Peak and Perseverance orebodies. Modified Avoca is used in a small area of Perseverance. Mining method applied at New Cobar, Jubilee and Chesney are benching and long hole open stoping with up and down hole combination.

Sub level intervals vary from 25m to 50m for various areas in the North and South Mine. This is based on appropriate method for control of dilution, reduction of pillars and ore loss, ground control, safety and regional stability.

Transition to a mix of owner and contract mining
Peak Mine will transition to a mix of owner and contract mining. Transition to mix of contract and owner mining at Peak to increase development rates for Great Cobar and enable future ore delivery.

Aurelia will directly perform key mining activities at the South Mine, supported ........

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The new sections of the upgraded Peak ore processing circuit were tied into the existing plant during the first week of February 2020.

The Peak process plant now has flexibility to produce gold doré and separate copper, lead and zinc concentrates at throughput rates of up to 800,000 tpa of high-grade gold and/or base metal feed. This capacity is set to be rapidly utilised with the processing of Chronos Pb-Zn oreand in subsequent years with the processing of high-grade Au-Pb-Zn ore from the recently discovered Kairos Zone.

Processing ore through the PGM processing plant involves grinding, cyclone classification, gravity separation, flotation, concentrate filtration, Carbon in Pulp (CIL) leaching, elution, carbon regeneration, electrowinning, and smelting. Feed to the plant is crushed underground; suitable for semi-autogenous grinding (SAG) mill feed.

SAG mill discharge feeds onto a double deck vibrating screen with a 16 mm top deck screen aperture size ........