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Canada
Fox Complex

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 Location:
65 km E from Timmins, Ontario, Canada

  Address:
St Andrews Road
Monteith
Ontario, Canada
P0K 1P0
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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Gold
  • Silver
Mining Method
  • Longhole stoping
  • Cemented backfill
Production Start...
Mine Life4 years (as of Jan 1, 2022)
The Fox Complex includes Black Fox mine, Froome mine, Tamarack and Grey Fox deposits. On September 19, 2021, the Froome deposit at the Black Fox mine achieved commercial production.

Low cost, bulk mining is to bridge gold production and provide cash flow while we continue to drill and assess potential additional resources at the Black Fox, Grey Fox, Stock and Lexam projects for future development towards expanded production.


Owners

Source: p. 4
CompanyInterestOwnership
McEwen Mining Inc. 100 % Indirect

Contractors

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Deposit Type

  • Vein / narrow vein
  • Breccia pipe / Stockwork


Summary:

Gold mineralization at the Black Fox Mine occurs in several different geological environments within the main carbonate alteration zone, which has a strike length of over 1,000 metres and a variable true width ranging from 10 metres to over 100 metres. This mineralized envelope occurs primarily within komatiitic ultramafics and lesser mafic volcanics within the outer boundaries of the PDDZ. The auriferous zones have several modes of occurrence, from concordant zones that follow lithological contacts and have been subsequently deformed, to slightly discordant zones associated with syenitic sills and quartz veins or stockworks.

The Black Fox Mine deposit has an overall first order south-southwest plunge (SSE in mine grid) with a second order westerly internal gold mineralization plunge. The first order plunge is parallel to stretching/intersection lineations and dominant folds, plus the local elongation of units. The second order plunge is at a high angle to the stretching lineation and controlled by stacking of S-SW dipping (to true north) reverse shear vein systems, vein arrays and shear zones which dip more shallowly to the south than the overall dip of the ultramafic host unit and faults that are parallel to it, and are stacked vertically within carbonate-talc-chlorite altered parts of the ultramafic unit (Rhys, 2016). This secondary ore control could be controlled by the north verging drag folds (Chappell, 2018).

Work carried out to date has identifi ........


Mining Methods

  • Longhole stoping
  • Cemented backfill


Summary:

The production rate is based on available stopes as of October 31, 2017 (the time that the assets were transferred from Primero to McEwen Mining Ontario). Consequently, the mine has a variable monthly mining rate, averaging approximately 500 tonnes per day. The average ounces recovered at the mill per day is approximately 140, which is equal to an average of 4,200 ounces per month over the 26 months in the LOM.

LOM development requirements are approximately 4,400 metres total. This development consists of 935m of ramps, and 2,030 metres of lateral development, 1,280 metres of sills and 140 metres of raises.

The mine is accessed by a portal located at a bench at a depth of 87 metres within the Black Fox Pit.

Stopes are typically mined in 15-metre lengths along the strike with widths varying from 5 up to 20 metres.

The mining method is long hole retreat. The stope sequencing has generally been top-down as new ore is found at depth.

Cemented hydraulic backfill is used in almost all stopes. Stopes are mined in alternating sequence using backfilled stopes as pillars for subsequent mining of adjacent stopes.

Ore mined is crushed and hauled to the mill.

The Froome mine, which is part of the overall Fox Complex, is accessed from two declines at the bottom of the Black Fox pit and situated approximately one-half mile west of the ceased Black Fox mine. As was the case with the Black Fox deposit, the min ........


Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

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Production:

CommodityUnits2022202120202019201820172016
Gold Equivalent koz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required49
Gold oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Silver oz  ......  Subscription required  ......  Subscription required  ......  Subscription required
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120202019201820172016
Ore tonnes mined  ......  Subscription required  ......  Subscription required214 kt256 kt263,889 t234,518 t
Tonnes processed  ......  Subscription required  ......  Subscription required244 kt263 kt685,250 t913,235 t
Daily processing capacity  ......  Subscription required  ......  Subscription required2,500 t2,500 t
Daily milling rate  ......  Subscription required  ......  Subscription required2,221 t2,495 t
Daily ore mining rate  ......  Subscription required  ......  Subscription required500 t
Stripping / waste ratio  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Reserves at December 31, 2021:

CategoryTonnage CommodityGradeContained Metal
Measured 1,274 kt Gold 4.3 g/t 159 koz
Indicated 12,986 kt Gold 4.15 g/t 1,731 koz
Measured & Indicated 14,261 kt Gold 4.24 g/t 1,942 koz
Inferred 4,033 kt Gold 3.89 g/t 505 koz

Commodity Production Costs:

CommodityUnits202120202019201820172016
Total cash costs (sold) Gold Equivalent USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 845 / oz   865 / oz  
Total cash costs Gold USD 881 / oz  
All-in sustaining costs (sold) Gold Equivalent USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 1,137 / oz   1,319 / oz  
All-in sustaining costs (AISC) Gold USD 1,291 / oz  
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Financials:

Units20212020201920182016
Sustaining costs M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 2   5.7  
Capital expenditures M USD 30.3  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 62   71.6  
Gross profit M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 6  
After-tax Income M USD -117.2  
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Heavy Mobile Equipment as of April 6, 2018:
HME TypeModelSizeQuantityLeased or
Contractor
Bulldozer ....................... Subscription required ....................... Subscription required Leased
Bulldozer ....................... Subscription required ....................... Subscription required Leased
Bulldozer ....................... Subscription required ....................... Subscription required Leased
Drill jumbo (single boom) ....................... Subscription required Leased
Drill jumbo (two boom) ....................... Subscription required Leased
Excavator ....................... Subscription required ....................... Subscription required Leased
Excavator ....................... Subscription required ....................... Subscription required Leased
Grader ....................... Subscription required ....................... Subscription required Leased
Grader ....................... Subscription required Leased
Loader ....................... Subscription required ....................... Subscription required Leased
Loader ....................... Subscription required ....................... Subscription required Leased
Loader ....................... Subscription required ....................... Subscription required Leased
Load-Haul-Dump (LHD) 2 cu. yd ....................... Subscription required Leased
Load-Haul-Dump (LHD) 4 cu. yd ....................... Subscription required Leased
Load-Haul-Dump (LHD) 6 cu. yd ....................... Subscription required Leased
Load-Haul-Dump (LHD) 8 cu. yd ....................... Subscription required Leased
Scissor Lift ....................... Subscription required Leased
Truck (dump) ....................... Subscription required Leased
Truck (haul) ....................... Subscription required 100 t ....................... Subscription required Leased
Truck (haul) 30 t ....................... Subscription required Leased
Truck (haul) 40 t ....................... Subscription required Leased
Truck (haul) 50 ....................... Subscription required Leased
Truck (water) ....................... Subscription required Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Dec 19, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 19, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 19, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2018

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Form 10-K 2018
Press Release 2018
Technical Report 2018
Form 10-K 2017
Management Discussion & Analysis 2017
Press Release 2017
Annual Report 2016
Press Release 2016
Year-end Mineral Reserves 2016
Annual Report 2015
Financial Review 2015
Press Release 2015
Press Release 2015
Annual Report 2014
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