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Australia
Fosterville Mine

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 Location:
20 km E from Bendigo, Victoria, Australia

  Address:
Mccormicks Road
Fosterville
Victoria, Australia
3557
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WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Gold
  • Silver
Mining Method
  • Open stoping
  • Cemented backfill
  • Paste backfill
Production Start...
Mine Life2031
Fosterville mine is the biggest gold producer in Victoria, Australia. It is a low-cost, high-grade underground mine accessed through two portals located in Ellesmere and Falcon open pits and connected declines.

The current life of mine plan provides for production from the Phoenix (including Swan, Eagle Kestrel and Cygnet), Harrier and Robbins Hill zones.


Owners

Source: p. 21,28
CompanyInterestOwnership
Agnico Eagle Mines Ltd. 100 % Indirect
Kirkland Lake Gold Ltd. indirectly owns Fosterville mine through it's wholly owned subsidiary Fosterville Gold Mine Pty Ltd.

February 8, 2022 – Agnico Eagle Mines Limited and Kirkland Lake Gold Ltd. are pleased to announce the successful completion of the previously announced merger of equals transaction (the “Merger”).

The combined company will continue as Agnico Eagle Mines Limited.

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Vein / narrow vein


Summary:

The Fosterville goldfield is located within the eastern Bendigo Zone, which is bound by the Avoca Fault to the west and the Heathcote Fault Zone to the east. The Bendigo Zone contains Ordovician turbidite sequences of sub-greenschist to greenschist metamorphic grade.

The Fosterville goldfield is hosted by Lower Ordovician Lancefieldian (approximately 486 to 488Ma) turbidites within the Ordovician Castlemaine Group rocks. This sequence has been weakly metamorphosed to sub-greenschist facies and folded into a set of upright, northnorthwest trending and shallowly south plunging open to closed folds. The folding resulted in the formation of a series of bedding parallel laminated quartz veins and bedding parallel thrust faults.

Gold and associated sulphide mineralization at the Fosterville mine is controlled by late brittle faulting and fracturing. These brittle faults are generally steeply west-dipping, reverse faults with a series of moderately west-dipping, reverse splay faults formed in the footwall of the main faults. There are also less abundant, moderately southeast and southwest-dipping faults which govern high grade visible gold mineralization along the Eagle and Swan zones. Two main styles of gold mineralization occur at the Fosterville mine; a sediment-hosted sub-micron refractory style where gold is locked in disseminated arsenopyrite and pyrite crystals which form selvages to quartz-carbonate vein stockworks throughout the nine kilometre long fa ........


Mining Methods

  • Open stoping
  • Cemented backfill
  • Paste backfill


Summary:

Mining activities at Fosterville are currently focused on the Central, Phoenix and Harrier underground ore zones. All areas are extracted using open stoping techniques with the application of Cemented Rock Fill where practical. Selection of the specific mining method within the open stoping regime is based upon previous experience at the Fosterville mine and expectations of ore zone geometry and geotechnical conditions. In 2020, work on a twin exploration drive, capable of supporting production activities, commenced to connect the existing Fosterville mine to Robbin’s Hill, which is expected to be established as a second mining operation to feed the Fosterville mill over the next few years. The twin drive had advanced over 7,800 metres as at December 31, 2021 and remains on track for completion in mid-2022.

Underground mining is conducted using a conventional fleet including jumbos, production drills, loaders, trucks and ancillary equipment. Open Cut mining (when required) is conducted using a conventional fleet including excavators and trucks with a contract mining fleet and workforce.

The Phoenix to 4240mRL, Harrier below 4500mRL, Central and Robin orebodies are accessed from a footwall decline position while the Phoenix below 4240mRL and Harrier orebody above 4500mRL are accessed from the hangingwall. All areas are planned to be extracted using open stoping techniques, primarily in a top down sequence, with the application of cemented rock fill or pas ........


Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.

^ Guidance / Forecast.

Production:
Production for the Fosterville mine in 2022 is reported from February 8 to December 31. For the complete twelve months of 2022 (including the period before the Merger), total gold production at the Fosterville mine was 383,206 ounces.

CommodityProductUnits2023202220212020201920182017
Gold Payable metal koz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required
Silver Payable metal koz  ......  Subscription required
Gold Metal in doré koz  ......  Subscription required  ......  Subscription required356264
^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202220212020201920182017
Tonnes milled  ......  Subscription required  ......  Subscription required  ......  Subscription required492,874 t456,909 t547,476 t
Daily milling rate  ......  Subscription required  ......  Subscription required  ......  Subscription required
Daily milling capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required2,275 t
Daily ore mining rate  ......  Subscription required  ......  Subscription required  ......  Subscription required1,300 t
Annual milling capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required
^ Guidance / Forecast.
Subscription required - Subscription is required.

Reserves at December 31, 2022:
The 2022 proven and probable mineral reserve estimates set out in the table above were estimated using a cut-off grade that used metallurgical gold recovery of 95.0%. The cut-off grade used for underground mineral reserves varies from 4.10 to 4.50 g/t gold, depending on the deposit

CategoryOreTypeTonnage CommodityGradeContained Metal
Proven In-Situ (UG) 608 kt Gold 23.19 g/t 453 koz
Probable In-Situ (UG) 5,955 kt Gold 6.39 g/t 1,224 koz
Proven & Probable In-Situ (UG) 6,562 kt Gold 7.95 g/t 1,677 koz
Measured In-Situ (OP) 715 kt Gold 2.86 g/t 66 koz
Measured In-Situ (UG) 342 kt Gold 5.36 g/t 59 koz
Measured Total 1,057 kt Gold 3.67 g/t 125 koz
Indicated In-Situ (OP) 1,251 kt Gold 3.36 g/t 135 koz
Indicated In-Situ (UG) 8,485 kt Gold 5.44 g/t 1,485 koz
Indicated Total 9,736 kt Gold 5.18 g/t 1,621 koz
Measured & Indicated In-Situ (OP) 1,966 kt Gold 3.18 g/t 201 koz
Measured & Indicated In-Situ (UG) 8,827 kt Gold 5.44 g/t 1,544 koz
Measured & Indicated Total 10,793 kt Gold 5.03 g/t 1,745 koz
Inferred In-Situ (OP) 226 kt Gold 2.42 g/t 18 koz
Inferred In-Situ (UG) 5,412 kt Gold 6.71 g/t 1,167 koz
Inferred Total 5,638 kt Gold 6.53 g/t 1,184 koz

Commodity Production Costs:

CommodityUnits2023202220212020201920182017
Credits (by-product) Gold USD  ......  Subscription required  ......  Subscription required
Cash costs Gold USD  ......  Subscription required
Cash costs (sold) Gold USD  ......  Subscription required  ......  Subscription required 200 / oz   264 / oz  
Total cash costs (sold) Gold USD  ......  Subscription required
Total cash costs Gold USD  ......  Subscription required  ......  Subscription required
Total cash costs (sold) Gold USD  ......  Subscription required ^†  ......  Subscription required†
Total cash costs Gold USD  ......  Subscription required†
All-in sustaining costs (sold) Gold USD  ......  Subscription required  ......  Subscription required 442 / oz   491 / oz  
All-in sustaining costs (AISC) Gold USD
^ Guidance / Forecast.
† Net of By-Product.
Subscription required - Subscription is required.

Operating Costs:

Units20222021
Total operating costs ($/t milled) AUD 356281

Financials:

Units2023202220212020201920182017
Capital expenditures (planned) M USD  ......  Subscription required
Sustaining costs M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 76   15.6  
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 105.8   64.1  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 444.1   327.1  
Gross profit M USD  ......  Subscription required
Operating Income M USD  ......  Subscription required  ......  Subscription required 272.7   145.7  
Subscription required - Subscription is required


Water Supply
Source: Subscription required

- subscription is required.


Heavy Mobile Equipment:
HME TypeModelSizeQuantityLeased or
Contractor
Ref. Date
Cable bolter ....................... Subscription required ....................... Subscription required Leased Dec 31, 2018
Cable bolter ....................... Subscription required ....................... Subscription required Leased Dec 31, 2018
Concrete sprayer ....................... Subscription required ....................... Subscription required Dec 31, 2018
Concrete sprayer ....................... Subscription required Dec 31, 2018
Drill ....................... Subscription required ....................... Subscription required Dec 31, 2018
Drill ....................... Subscription required ....................... Subscription required Dec 31, 2018
Drill jumbo (two boom) ....................... Subscription required ....................... Subscription required Dec 31, 2018
Drill jumbo (two boom) ....................... Subscription required ....................... Subscription required Dec 31, 2018
Grader ....................... Subscription required ....................... Subscription required Dec 31, 2018
Grader ....................... Subscription required ....................... Subscription required Dec 31, 2018
Loader ....................... Subscription required ....................... Subscription required Dec 31, 2018
Loader ....................... Subscription required ....................... Subscription required Sep 1, 2022
Trans Mixer ....................... Subscription required ....................... Subscription required Dec 31, 2018
Truck (haul) ....................... Subscription required 60 t ....................... Subscription required Dec 31, 2018
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Apr 21, 2023
....................... Subscription required ....................... Subscription required Subscription required Apr 21, 2023
....................... Subscription required ....................... Subscription required Subscription required Apr 21, 2023
....................... Subscription required ....................... Subscription required Subscription required Apr 21, 2023
....................... Subscription required ....................... Subscription required Subscription required Apr 21, 2023
....................... Subscription required ....................... Subscription required Subscription required Apr 21, 2023
....................... Subscription required ....................... Subscription required Subscription required Apr 21, 2023
....................... Subscription required ....................... Subscription required Subscription required Apr 21, 2023
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2022
Subscription required 2021
Subscription required 2018

Corporate Filings & Presentations:

DocumentYear
Press Release 2023
Annual Information Form 2022
Form 40-F 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Corporate Presentation 2018
Corporate Presentation 2018
Corporate Presentation 2018
Financial Review 2018
Management Discussion & Analysis 2018
Press Release 2018
Press Release 2018
Corporate Presentation 2017
Corporate Presentation 2017
Financial Review 2017
Management Discussion & Analysis 2017
Management Discussion & Analysis 2017
Technical Report 2017
Technical Report 2017
Corporate Presentation 2016
Corporate Presentation 2016
Financial Review 2016
Management Discussion & Analysis 2016
Technical Report 2016
Subscription required - Subscription is required.

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