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Australia
Peak Mine

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 Location:
8 km S from Cobar, New South Wales, Australia
  Address:
Hillston Road, Kidman Way
PO Box 328
Cobar
New South Wales, Australia
2835
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  • Overview
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  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
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  • Filings & News
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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Gold
  • Silver
  • Copper
  • Lead
  • Zinc
Mining Method
  • Longhole open stoping
  • Bench stoping
  • Transverse stoping
  • Avoca
  • Cemented backfill
Production Start...
Mine Life2035
Peak Mine comprises two separate polymetallic underground mines (New Cobar Complex and Peak Complex) and an 800ktpa base metals and gold processing plant.

Expansion: The Great Cobar Project involves the development of a satellite base metals and gold deposit, north of, and accessible from, the New Cobar mining complex at our Peak Mine’s processing facility and is approximately 1.5km north of the New Cobar Mine. A Pre-Feasibility Study (PFS) and maiden Ore Reserve was released in January 2022. Further study works are planned to be completed during FY24.

Owners

Source: p. 56,72
CompanyInterestOwnership
Aurelia Metals Ltd. 100 % Indirect
Peak Gold Mines Pty Ltd. (operator) 100 % Direct
Aurelia Metals through its wholly owned subsidiary Peak Gold Mines Pty Ltd., owns and operates Peak mine.

Contractors

Subscription required - Subscription is required.

Deposit Type

  • Breccia pipe / Stockwork
  • Vein / narrow vein
  • Sediment-hosted
  • Volcanic hosted

Summary:

The gold and copper deposits on the Peak Gold Mines (PGM) 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 ........

Mining Methods

  • Longhole open stoping
  • Bench stoping
  • Transverse stoping
  • Avoca
  • Cemented backfill

Summary:

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

Peak Mining Complex
The Peak Mining Complex consists of the Peak and Perseverance underground mining operations, surface infrastructure, water management structures, stockpiles and the Peak TSF. The Peak and Perseverance ore bodies have two methods for underground access, a shaft and a single surface decline. The Peak decline is 5 m wi ........

Crushing and Grinding
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Processing

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Summary:

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Production:
Aurelia Metals Ltd acquired the Peak Gold Mines from New Gold Inc. in 2018.
2018 full year production numbers have not been reported.

CommodityProductUnits202320222021202020192017
Gold Metal in conc./ doré koz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required104
Copper Metal in concentrate M lbs  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Lead Metal in concentrate M lbs  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Zinc Metal in concentrate M lbs  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Silver Metal in conc./ doré koz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Copper Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Lead Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Zinc Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required
Lead / Zinc Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required
^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics20232022202120202019
Annual processing capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required800 kt
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required578,116 t448,624 t
Tonnes processed  ......  Subscription required  ......  Subscription required  ......  Subscription required568,537 t452,501 t
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Reserves at June 30, 2023:
The Peak copper Ore Reserve Estimate utilises A$80/t NSR cut-off for development and A$175-220/t NSR for stoping depending on mine area. The Peak zinc-lead Ore Reserve Estimate utilises A$80/t NSR cut-off for development and A$185-190/t NSR for stoping depending on mine area.

The Mineral Resource utilises A$135/t NSR cut-off for Perseverance, Peak & Kairos and A$120/t NSR cut-off for all other deposits within mineable shapes that include internal dilution.

CategoryOreTypeTonnage CommodityGrade
Proven & Probable Zinc 710 kt Gold 2.6 g/t
Proven & Probable Copper 2,000 kt Gold 1.7 g/t
Proven & Probable Zinc 710 kt Silver 22 g/t
Proven & Probable Copper 2,000 kt Silver 5 g/t
Proven & Probable Zinc 710 kt Copper 0.4 %
Proven & Probable Copper 2,000 kt Copper 1.8 %
Proven & Probable Zinc 710 kt Lead 5.1 %
Proven & Probable Zinc 710 kt Zinc 6.1 %
Total Resource Zinc 3,000 kt Gold 1.8 g/t
Total Resource Copper 16,000 kt Gold 0.9 g/t
Total Resource Zinc 3,000 kt Silver 23 g/t
Total Resource Copper 16,000 kt Silver 6 g/t
Total Resource Zinc 3,000 kt Copper 0.7 %
Total Resource Copper 16,000 kt Copper 1.8 %
Total Resource Zinc 3,000 kt Lead 3.3 %
Total Resource Zinc 3,000 kt Zinc 4.6 %

Commodity Production Costs:

CommodityUnits20232022202120202019
Credits (by-product) Gold AUD  ......  Subscription required  ......  Subscription required
All-in sustaining costs (AISC) Gold AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All-in costs Gold AUD  ......  Subscription required
^ Guidance / Forecast.
† Net of By-Product.
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Financials:

Units20232022202120202019
Capital expenditures (planned) M AUD
Sustaining costs M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Growth Capital M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Revenue M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
EBITDA M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
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Water Supply
Source: Subscription required

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Heavy Mobile Equipment:
HME TypeQuantityLeased or
Contractor		Ref. Date
Jumbo ....................... Subscription required Jun 30, 2023
Load-Haul-Dump (LHD) ....................... Subscription required Jun 30, 2022
Truck (haul) ....................... Subscription required Leased Jun 30, 2022
Truck (underground) ....................... Subscription required Jun 30, 2023
Subscription required - Subscription is required.

Mine Management:

Job TitleNamePhoneEmailProfileRef. Date
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Nov 14, 2023
....................... Subscription required ....................... Subscription required Subscription required Nov 13, 2023
....................... Subscription required ....................... Subscription required Subscription required Nov 13, 2023
....................... Subscription required ....................... Subscription required Subscription required Nov 13, 2023
....................... Subscription required ....................... Subscription required Subscription required Nov 13, 2023
....................... Subscription required ....................... Subscription required Subscription required Nov 13, 2023
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2023
Subscription required Subscription required Subscription required 2022
Subscription required Subscription required Subscription required 2021
Subscription required 2020
Subscription required 2019
Subscription required 2017
Subscription required 2016
Subscription required Subscription required Subscription required 2015

Corporate Filings & Presentations:

DocumentYear
Annual Report 2023
Corporate Presentation 2023
Quarterly Report 2023
Year-end Mineral Reserves 2023
Annual Report 2022
Mine Closure Plan 2022
Pre-Feasibility Study Report 2022
Quarterly Report 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Press Release 2018
Year-end Mineral Reserves 2018
Annual Information Form 2017
Financial Review 2017
Annual Information Form 2016
Corporate Presentation 2016
Financial Review 2016
Press Release 2016
Press Release 2015
Financial Review 2014
Technical Report 2013
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