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Australia
Kanmantoo Mine

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 Location:
3 km SW from Kanmantoo, South Australia, Australia

  Address:
Eclair Mine Road
Kanmantoo
South Australia, Australia
5252
Phone  ...  Subscription required
Fax+ 61-8-8538-5255
WebsiteWeb
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Overview

StatusCare and Maintenance
Mine TypeOpen Pit
Commodities
  • Copper
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
Mine Life2019
Open cut mining was completed in May 2019 and the processing of ore stockpiles completed in March 2020.

With the completion of the open cut operations, focus is on the development of the Underground project, which presents an opportunity to resume production in the near term. The mine is fully permitted.

PYBAR has been engaged to extend the exploration decline using traditional drill and blast practices in order to bring forward first copper, pending a positive investment decision to commence the Underground.


Owners

 
CompanyInterestOwnership
Hillgrove Resources Ltd. 100 % Indirect
Hillgrove Copper Pty. Ltd. (operator) 100 % Direct
Hillgrove Copper Pty Ltd operates the Kanmantoo Copper Mines.

Hillgrove Copper Pty Ltd (Hillgrove) is a fully owned subsidiary of Hillgrove Resources Limited.

Contractors

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Deposit Type

  • Epithermal


Summary:

The copper-gold deposit is part of the Kanmantoo Trough, which is the youngest of a succession of extensional sub-basins developed within the Adelaide Geosyncline. The Kanmantoo orebody comprises three main mineralised zones: Main, O’Neil/Nugent and Emily Star. Each of the ore zones contains an oxide, transition and primary sulphide ore component.

The Main Zone is hosted by a garnet-andalusite-biotite schist within the Cambrian Kanmantoo Group. Copper mineralisation occurs as chalcopyrite within a complex series of northern trending steep northeast plunging pipes and lodes 3 to 80 m wide (Figure 5.4) (Resource Evaluations, 2006). Mineralisation is characterised by chalcopyrite, pyrrhotite and magnetite with lesser pyrite. In the Emily Star Zone, mineralisation is characterised by chalcopyrite and pyrite. Mineralisation in the O’Neil/Nugent Zone is associated with a garnet-chlorite hydrothermal alteration zone with quartz veining. In comparison with the other zones, the O’Neil/Nugent Zone is enriched in gold.

Sulphide becomes less common with distance from the ore zone indicating there is likely to be broad zones of non-sulphidic waste rock outside of the main mineralised blocks. Across the ML area, there is a distinct weathering zone of approximately 15 m depth that appears to be completely oxidised. This oxidised zone is an important source of non-acid-forming (NAF) material suitable for use in encapsulation of the potentially acid-forming (PAF) waste material.


Mining Methods

  • Truck & Shovel / Loader


Summary:

Mining is undertaken using conventional open pit methods, i.e., drilling and blasting where required with truck and excavator for removal from the pit. Ore and waste rock is predominantly blasted using 9 to 12 m high benches and mined over passes or ‘flitches’.

Blasting is undertaken using ammonium nitrate/fuel oil (ANFO) or emulsion-based explosives, which are loaded into blastholes. Hole diameters vary from 89 to 165 mm, with up to 600 holes fired in each shot. Blasting is generally undertaken from 10 am to 3 pm. and is managed to meet the lease conditions, Australian standards (AS 2187.2:2006) and other advanced blasting practices. Blast holes are backfilled with stemming material to contain the explosion on initiation and hence reduce noise, dust and fly rock. Surface and downhole delays are used to minimise ground vibration. Electronic or non-electric (Nonel) signal tube is used for downhole and surface tie-ins to improve blast performance and reduce noise and air blast. Blasts are designed to ensure that there will be no adverse public health and/or nuisance impacts.


Crushing and Grinding
Flow Sheet: Source


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Production:

CommodityProductUnits2018201720162015
Copper Metal in concentrate M lbs 50333038
Copper Concentrate kt 95676075
Gold Metal in concentrate oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Silver Metal in concentrate oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Operational Metrics:

Metrics2018201720162015
Annual milling capacity 3 Mt
Ore tonnes mined 5,728 kt3,915 kt2,839 kt3,542 kt
Waste 7,557 kt14,388 kt17,350 kt12,332 kt
Total tonnes mined 13,285 kt18,303 kt15,171 kt20,892 kt
Tonnes milled 3,324 kt3,427 kt3,197 kt4,104 kt

Reserves at December 31, 2018:

CategoryTonnage CommodityGradeContained Metal
Proven 1.2 Mt Copper 0.6 % 8 kt
Proven 1.2 Mt Gold 0.1 g/t
Proven 1.2 Mt Silver 1.2 g/t
Probable 0.3 Mt Copper 0.5 % 1 kt
Probable 0.3 Mt Gold 0.1 g/t
Probable 0.3 Mt Silver 0.8 g/t
Proven & Probable 1.5 Mt Copper 0.6 % 9 kt
Proven & Probable 1.5 Mt Gold 0.1 g/t
Proven & Probable 1.5 Mt Silver 1.2 g/t
Measured 3.8 Mt Copper 0.6 % 21 kt
Measured 3.8 Mt Gold 0.1 g/t
Measured 3.8 Mt Silver 1.1 g/t
Indicated 3.5 Mt Copper 0.5 % 18 kt
Indicated 3.5 Mt Gold 0.1 g/t
Indicated 3.5 Mt Silver 0.9 g/t
Inferred 8 Mt Copper 0.6 % 47 kt
Inferred 8 Mt Gold 0.1 g/t
Inferred 8 Mt Silver 0.8 g/t
Total Resource 15.9 Mt Copper 0.5 % 86 kt
Total Resource 15.9 Mt Gold 0.1 g/t
Total Resource 15.9 Mt Silver 1 g/t

Commodity Production Costs:

CommodityUnits201820172016
C1 cash costs Copper USD 2.09 / lb   2.33 / lb   1.73 / lb  

Financials:

Units201820172016
Revenue M AUD 202.4   127.1   113.1  
After-tax Income M AUD 29.5   -14.1   -109.1  
EBIT M AUD 27.6   4.4   -23.9  
EBITDA M AUD 44.3   16.2   22.2  



Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 27, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 27, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 27, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 27, 2022
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2018
Subscription required Subscription required Subscription required 2017

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
Annual Report 2018
Annual Report 2017
Annual Report 2016
Technical Report 2016
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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