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Canada
Macassa Mine

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 Location:
3 km W from Kirkland Lake, Ontario, Canada

  Address:
1350 Government Road West
Kirkland Lake
Ontario, Canada
P2N 3JI
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  • Overview
  • Owners
  • 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
Mining Method
  • Mechanized Cut & Fill
  • Overhand Cut & Fill
  • Underhand Cut & Fill
  • Longhole stoping
  • Cemented backfill
  • Paste backfill
Production Start...
Mine Life2029
At the Macassa mine, the near-term focus is on optimizing the mill with high-grade ore from the South Mine Complex. As a result, the Agnico is evaluating the potential to transport ore from the AK deposit at Macassa to the LaRonde Complex (a distance of approximately 130 kilometres) to utilize the excess mill capacity at the LaRonde Complex mill. These ore zones are currently accessible via a shallow ramp system and the Company believes that they could initially provide up to 350 tpd of ore starting in 2024 and gradually ramp up to 500 tpd.


Owners

Source: p. 21,221,226
CompanyInterestOwnership
Agnico Eagle Mines Ltd. 100 % Indirect
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.

Agnico Eagle Mines - 100% owned Macassa mine.

Contractors

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Deposit Type

  • Vein / narrow vein
  • Breccia pipe / Stockwork


Summary:

The gold mineralization at Macassa is found along breaks or faults, in veins as quartz filled fractures, as breccias and as sulphide rich (pyrite) zones. There are multiple mineralized breaks, named the ‘04, ‘05, No.6, Kirkland Lake Main and the Kirkland Lake North and South branches. The breaks strike 60 degrees northeast and dip 70 to 80 degrees south in keeping with the Timiskaming trend. The trend of the gold mineralization in the Kirkland Lake camp conforms to the 60 degree westerly plunge of the syenite intrusives.

The SMC was a significant discovery, with the zone having a different character than the zones mined historically at Macassa. The SMC is associated with a cross-over structure that links the ’04 / Main Break with the Amalgamated Break. The mineralization trends parallel to the main structures but has a much flatter dip ranging from 20 to 50 degrees south. SMC mineralization has been found to have greater widths and contain higher grades than the main zones. Considerable potential exists for future exploration drilling to identify additional parallel and stacked zones located above, below and along strike of the known SMC Zone.

The gold mineralization at Macassa is located along the breaks and subordinate splays as individual fracture fill quartz veins, from several centimetres to a few meters thick. Veins may be of single, sheeted, brecciated or stacked morphology. Several generations of quartz deposition are evident from colour and text ........


Mining Methods

  • Mechanized Cut & Fill
  • Overhand Cut & Fill
  • Underhand Cut & Fill
  • Longhole stoping
  • Cemented backfill
  • Paste backfill


Summary:

There are three active mining areas in Macassa Mine: Main Break (MB), Lower North (LN) and New South (NS). The areas LN and NS are both part of the SMC. Access to the mining areas is through the #3 Shaft and connecting lateral development within the MB and SMC zones. The main mining methods at Macassa Mine include Underhand Cut and Fill, Longhole stoping and Mechanized Overhand Cut and Fill. The selection of mining method depends on several factors including ore geometry, grade and the need for locations to deposit waste fill. There are also several geomechanical considerations, such as structure and stresses, which impact the mining method selection.

Paste fill is the main material used to backfill stopes, although unconsolidated rockfill is also used where possible. Material hoisted to surface via #3 Shaft, which has an average capacity of 2,200 tpd.

Once the ore is hoisted to surface, it is then trucked to the crushing facilities. After crushing and grinding (95% passing, 45 microns), the ore is processed by conventional cyanide leaching with a carbon-in-pulp recovery system.

Macassa Mine has been on the forefront in the use of Battery Electric Vehicles (“BEVs”) and was the first mine in Ontario to implement BEVs as the standard for the LHD and truck fleet. Kirkland Lake Gold has partnerships with battery equipment manufacturers to develop and design BEVs, as opposed to retrofitting diesel powered equipment. Macassa Mine will continue to re ........


Crushing and Grinding
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Processing

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Summary:

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^ Guidance / Forecast.

Production:
Production for the Macassa 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 Macassa mine was 200,288 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 required240194
^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202320222021202020192018
Tonnes milled  ......  Subscription required  ......  Subscription required  ......  Subscription required312,759 t324,077 t354,469 t
Daily milling rate  ......  Subscription required  ......  Subscription required  ......  Subscription required
Daily milling capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required2,000 t2,000 t
Daily mining rate  ......  Subscription required  ......  Subscription required  ......  Subscription required
Daily mining capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required2,200 t2,200 t
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required
^ Guidance / Forecast.
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Reserves at December 31, 2022:
Gold cut-off grade varies according to mining type, not less than 7.28 g/t (incremental material is 3.37 g/t).

CategoryTonnage CommodityGradeContained Metal
Proven 135 kt Gold 15.33 g/t 66 koz
Probable 3,803 kt Gold 15.1 g/t 1,846 koz
Proven & Probable 3,937 kt Gold 15.11 g/t 1,913 koz
Measured 272 kt Gold 10.49 g/t 92 koz
Indicated 2,415 kt Gold 8.94 g/t 695 koz
Measured & Indicated 2,687 kt Gold 9.1 g/t 786 koz
Inferred 2,816 kt Gold 13.31 g/t 1,205 koz

Commodity Production Costs:

CommodityUnits2023202220212020201920182017
Credits (by-product) Gold USD  ......  Subscription required  ......  Subscription required
Cash costs (sold) Gold USD  ......  Subscription required  ......  Subscription required 426 / oz   523 / 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 713 / oz   845 / oz  
^ Guidance / Forecast.
† Net of By-Product.
Subscription required - Subscription is required.

Operating Costs:

Units202220212015
Total operating costs ($/t milled) CAD 577  540  312.98  

Financials:

Units2023202220202019201820172016
Capital expenditures (planned) M USD  ......  Subscription required
Sustaining costs M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 59.9   28.4  
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 126.4   42.4   41.2  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 307.8   247.1   213.5  
Gross profit M USD  ......  Subscription required
Operating Income M USD  ......  Subscription required  ......  Subscription required 145.9   90.2   77.2  
Pre-tax Income M USD 76.1  
After-tax Income M USD 57  
Subscription required - Subscription is required


Water Supply
Source: Subscription required

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Heavy Mobile Equipment:
HME TypeModelSizeQuantityRef. Date
Drill jumbo (two boom) ....................... Subscription required ....................... Subscription required Feb 1, 2019
Excavator ....................... Subscription required Feb 1, 2019
Grader ....................... Subscription required ....................... Subscription required Feb 1, 2019
Jumbo ....................... Subscription required ....................... Subscription required Feb 1, 2019
Jumbo ....................... Subscription required ....................... Subscription required Feb 1, 2019
Load-Haul-Dump (LHD) ....................... Subscription required 2 cu. yd ....................... Subscription required Feb 1, 2019
Load-Haul-Dump (LHD) 3 cu. yd ....................... Subscription required Feb 1, 2019
Load-Haul-Dump (LHD) 2 cu. yd ....................... Subscription required Feb 1, 2019
Load-Haul-Dump (LHD) ....................... Subscription required 2 cu. yd ....................... Subscription required Feb 1, 2019
Load-Haul-Dump (LHD) 3.5 cu. yd ....................... Subscription required Feb 1, 2019
Load-Haul-Dump (LHD) 1.5 cu. yd ....................... Subscription required Feb 1, 2019
Load-Haul-Dump (LHD) 6 cu. yd ....................... Subscription required Feb 1, 2019
Load-Haul-Dump (LHD) ....................... Subscription required 1.5 cu. yd ....................... Subscription required Feb 1, 2019
Personnel Carrier ....................... Subscription required Feb 1, 2109
Scissor Lift ....................... Subscription required Feb 1, 2019
Truck (haul) ....................... Subscription required Feb 1, 2019
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Apr 20, 2023
....................... Subscription required ....................... Subscription required Subscription required Apr 20, 2023
....................... Subscription required ....................... Subscription required Subscription required Apr 20, 2023
....................... Subscription required ....................... Subscription required Subscription required Apr 20, 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
Corporate Presentation 2022
Form 40-F 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Corporate Presentation 2018
Corporate Presentation 2018
Financial Review 2018
Management Discussion & Analysis 2018
Press Release 2018
Press Release 2018
Corporate Presentation 2017
Financial Review 2017
Management Discussion & Analysis 2017
Corporate Presentation 2016
Financial Review 2016
Management Discussion & Analysis 2016
Technical Report 2016
Annual Report 2015
Financial Review 2015
Press Release 2015
Technical Report 2015
Annual Report 2014
Subscription required - Subscription is required.

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