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Australia
Carrapateena Mine (Carrapateena Expansion Project)

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 Location:
63 km E from Woomera, South Australia, Australia
  Address:
2 Hamra Drive Adelaide Airport PO Box 248 Adelaide Airport
Adelaide
South Australia, Australia
5950
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  • Overview
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  • Mining
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  • Costs & Financials
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  • Filings & News
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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Copper
  • Gold
  • Silver
Mining Method
  • Block caving
  • Sub-level caving
Production Start...
Mine Life22 years (as of Jan 1, 2022)
Carrapateena is an underground copper, gold and silver mine.

The Carrapateena cave safely breaking through to surface marked a significant milestone for the mine and an important de-risking event for ongoing operations. Now that the cave has broken through to the surface, mine planning can be optimised for production rather than prioritising the development of the cave through to surface, which has been the primary focus over the first two years of the mine’s life. The underground Block Cave decline development has continued to advance with the decline now over 1km vertically below the surface. Crusher 2, which will enable increased operational and cost efficiencies for the Sub Level Cave, is now expected to be commissioned in Q4 2023 as flagged in the Q3 production report.
Latest NewsOZ Minerals: CiDRA Awarded a Services Contract for First of a Kind Grind Circuit Rougher at OZ Minerals’ Carrapateena Mine Site     April 11, 2023

Owners

Source:
CompanyInterestOwnershipInvestor's Info
BHP Group Ltd. 100 % Indirect
The Carrapateena Project is owned 100% by OZ Minerals Limited through its wholly-owned subsidiaries.

On May 2, 2023, BHP announced the completion of the OZ Minerals acquisition and implementation of the scheme of arrangement for BHP Lonsdale Investments Pty Limited, a wholly owned subsidiary of BHP Group Limited, to acquire 100% of the shares in OZ Minerals Limited (OZL) (the Scheme). BHP Group Limited is now the ultimate parent company of OZL.

Contractors

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Deposit Type

  • Breccia pipe / Stockwork
  • IOCG

Summary:

The Carrapateena Breccia Complex is located within the Olympic copper gold (Cu-Au) Province on the eastern edge of the Gawler Craton. It is hosted within Donington Suite granite and is unconformably overlain by approximately 480 m of Neoproterozoic sediments. Mineralisation and alteration are in the form of that seen at other large South Australian iron oxide copper gold (IOCG) deposits including Prominent Hill and Olympic Dam.

The Carrapateena copper-gold mineral deposit is hosted in a brecciated granite complex, with both bornite and chalcopyrite copper mineralisation present – the bornite being a distinct higher grade zone of mineralisation.

At deposit scale, the hematite breccia zone appears to be quite continuous, but its limits at depth are not yet well-defined. A subset of the hematite breccia zone contains significant copper mineralisation. Bornite-dominant and chalcopyrite-dominant zones appear as distinct clusters on scatter plots of copper and sulphur grades.

The mostly low-grade mineralisation in the north, east and at depth, is less continuous and has consequently been classified mainly as Inferred. Both the hematite breccia zone and the copper-mineralised zones are open at depth. The geological model is a near-vertical body of hematite dominated breccia hosted within altered granite.

The vast majority of copper and gold mineralisation within the deposit is hosted by hematite-dominated breccias with moderate mineralis ........

Mining Methods

  • Block caving
  • Sub-level caving

Summary:

It was concluded that both the Block Cave (BC) and Sub Level Cave (SLC) are appropriate methods to mine the Carrapateena Ore Reserve.

Two mining blocks were identified to be mined one after the other, being BC1 then BC2. This approach maximises NPV and the Present Value Ratio (Net Present Value divided by Discounted Capital Cost) of the deposit. In addition to the existing mill already constructed for the SLC mining method, an additional mill will need to be constructed to increase the processing throughput rate to 12 Mtpa.

Production commenced from the eighth Sub Level Cave level during the quarter. Crusher station 2 excavation progressed and pilot drilling was completed for two of the ore passes which will feed the crusher. Fit out of the three transfer chambers to support crusher 2 continued to progress.

The mine utilises an extensive fleet of modern, large scale underground mining equipment with 21t capacity loaders & 63t trucks, hauling to an underground crusher.

Having successfully broken through to the surface the sub-level cave at Carrapateena has begun to optimise for production, now that the safe development of the cave has been established. The lower sub level cave is planned to transition to a block cave.

BC is a mining method that involves the establishment of a stable extraction level using ground support such as rock bolts and cable bolts. An undercut level is mined above the extraction level, and the unde ........

Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

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Production:

CommodityProductUnits2023202220212020Avg. Annual (Projected)
Copper Metal in concentrate t  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required65,000
Gold Metal in concentrate oz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Copper Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required
Silver Metal in concentrate oz  ......  Subscription required  ......  Subscription required  ......  Subscription required
^ Guidance / Forecast.
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Operational Metrics:

Metrics2022202120202019
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required300,640 t
Tonnes milled  ......  Subscription required  ......  Subscription required  ......  Subscription required
Annual processing capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required
Total tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required1,653,405 t
Waste  ......  Subscription required  ......  Subscription required  ......  Subscription required1,352,765 t
^ Guidance / Forecast.
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Reserves at June 30, 2022:
The A$25/t Net Smelter Return (NSR) used cut-off for the Carrapateena Mineral Resource.

CategoryTonnage CommodityGradeContained Metal
Probable 190 Mt Copper 1.1 % 2,000 kt
Probable 190 Mt Gold 0.42 g/t 2,600 koz
Probable 190 Mt Silver 4.3 g/t 27 M oz
Measured 140 Mt Copper 1.1 % 1,500 kt
Measured 140 Mt Gold 0.43 g/t 1,900 koz
Measured 140 Mt Silver 4.1 g/t 18 M oz
Indicated 470 Mt Copper 0.61 % 2,800 kt
Indicated 470 Mt Gold 0.26 g/t 3,900 koz
Indicated 470 Mt Silver 2.7 g/t 40 M oz
Inferred 300 Mt Copper 0.26 % 800 kt
Inferred 300 Mt Gold 0.13 g/t 1,300 koz
Inferred 300 Mt Silver 1.8 g/t 18 M oz
Total Resource 900 Mt Copper 0.56 % 5,100 kt
Total Resource 900 Mt Gold 0.24 g/t 7,000 koz
Total Resource 900 Mt Silver 2.6 g/t 76 M oz

Commodity Production Costs:

CommodityUnits2023202220212020
Credits (by-product) Copper USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Total cash costs Copper USD  ......  Subscription required†  ......  Subscription required†  ......  Subscription required†
All-in sustaining costs (AISC) Copper USD  ......  Subscription required ^†  ......  Subscription required†  ......  Subscription required†  ......  Subscription required†
C1 cash costs Copper USD  ......  Subscription required ^†  ......  Subscription required†  ......  Subscription required†  ......  Subscription required†
^ Guidance / Forecast.
† Net of By-Product.
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Financials:

Units2023202220212020
Capital expenditures (planned) M AUD  ......  Subscription required
Capital expenditures M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Revenue M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required
EBITDA M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required
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Water Supply
Source: Subscription required

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Heavy Mobile Equipment as of December 31, 2022:
HME TypeModelQuantityLeased or
Contractor
Cable bolter ....................... Subscription required ....................... Subscription required Leased
Drill ....................... Subscription required ....................... Subscription required Leased
Drill ....................... Subscription required ....................... Subscription required Leased
Drill (long hole) ....................... Subscription required ....................... Subscription required Leased
Explosives Charger ....................... Subscription required ....................... Subscription required Leased
Loader ....................... Subscription required ....................... Subscription required Leased
Truck (underground) ....................... Subscription required ....................... Subscription required Leased
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Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Mar 9, 2023
....................... Subscription required ....................... Subscription required Subscription required Mar 6, 2023
....................... Subscription required ....................... Subscription required Subscription required Mar 6, 2023
....................... Subscription required ....................... Subscription required Subscription required Mar 6, 2023
....................... Subscription required ....................... Subscription required Subscription required Mar 6, 2023
....................... Subscription required ....................... Subscription required Subscription required Mar 6, 2023
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2021
Subscription required Subscription required Subscription required 2020
Subscription required 2019

Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Other 2022
Quarterly Report 2022
Quarterly Report 2022
Year-end Mineral Reserves 2022
................................... 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
Annual Report 2018
Financial Review 2018
Corporate Presentation 2017
Feasibility Study Report 2017
Press Release 2017
Annual Report 2016
Subscription required - Subscription is required.

News:

NewsDate
OZ Minerals: CiDRA Awarded a Services Contract for First of a Kind Grind Circuit Rougher at OZ Minerals’ Carrapateena Mine Site April 11, 2023

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