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Mexico
Los Filos Complex (Los Filos Expansion (CIL) Project) (Los Filos Expansion (CIL) Project)

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 Location:
10 km SW from Mezcala, Guerrero, Mexico
  Address:
Acceso por Carretera 95
Mezcala
Guerrero, Mexico
40196
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News
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Overview

StageProduction
Mine TypeOpen Pit & Underground
Commodities
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
  • Drift & Fill
  • Overhand Cut & Fill
  • Underhand Cut & Fill
  • Longhole open stoping
  • Cemented backfill
  • Dry waste backfill
Production Start...
Mine Life14.5 years (as of Jan 1, 2022)
The Los Filos Mine Complex currently comprises three open pits (Los Filos, Bermejal and Guadalupe) and two underground mines (Los Filos and Bermejal). Ore from all of the deposits is processed using heap leach recovery.

Equinox Gold is expanding production at Los Filos with development of the new Bermejal underground mine (deposit has been contributing higher-grade ore since mid-2022). The Company is also considering construction of a new carbon-in-leach plant to process highergrade ore, which could increase production to more than 300,000 oz of gold per year. Equinox Gold has not made a construction decision for the CIL plant.

2023 plan: Mining at Guadalupe and Los Filos open pits and Los Filos North underground, suspend Bermejal underground to defer capital spend.

Owners

Source: p. 68
CompanyInterestOwnership
Equinox Gold  Corp. 100 % Indirect
Los Filos Mine Complex property are wholly owned by Desarrollos Mineros San Luis, S.A. de C.V. (DMSL), a Mexican company indirectly wholly owned by Equinox Gold.

Contractors

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Deposit Type

  • Skarn
  • Intrusion related
  • Breccia pipe / Stockwork
  • Vein / narrow vein

Summary:

Mineralization on the Los Filos Mine property is typical of intrusion-related gold–silver iron-oxide skarn deposits.

Los Filos Deposit Area Mineralization
In the Los Filos area, mineralization is associated with two early Tertiary granodiorite stocks that were emplaced in carbonate rocks and resulted in development of high-temperature calc-silicate and oxide metasomatic alteration (skarn) assemblages that were followed by distinct meso to epithermal alteration. Hematite and magnetite are typical skarn minerals, but diopside, which is usually recognized in skarn assemblages, is not present.

The Nukay and Sur deposits formed along the north and southern margins of the West Stock . The Peninsular and Zona 70 deposits formed on the northern and southwest margins of the East Stock, respectively.

The Los Filos Open Pit mineralization is hosted primarily within or on the lower contact of a diorite sill that dips from 20° to 50° to the east, away from the East Stock. The diorite was emplaced into a large, moderately dipping active structure that parallels bedding in the marble. The sill has a sigmoidal shape that starts out roughly flat at the stock, extends east at a moderate dip for approximately 200 m, turns south, flattens out, and extends to the Bermejal Intrusion, located approximately 2 km to the south.

Mineralization—Eastern Los Filos Open Pit
The diorite sill hosts a significant proportion of the mineralization on the eas ........

Mining Methods

  • Truck & Shovel / Loader
  • Drift & Fill
  • Overhand Cut & Fill
  • Underhand Cut & Fill
  • Longhole open stoping
  • Cemented backfill
  • Dry waste backfill

Summary:

The Los Filos Mine Complex encompasses the three main open pit mining areas of Bermejal (BOP), Guadalupe (GOP), and Los Filos (LFOP), as well as three underground mines, Los Filos South, Los Filos North (LFUG) and Bermejal Underground (BUG).

Open pit mining entails conventional drilling and blasting, with loading by excavator and haulage by trucks to a crusher (for Crushed heap leach processing) or directly to a run-of-mine leach pad.

At LFUG, the overhand cut and fill (OHCAF) mining method is used in narrow areas and the overhand drift and fill (OHDAF) method is used in the wider areas. Longhole open stoping (LHOS) mining method is also used in targeted areas of vertical ore-body continuity and good rock conditions. The mining methods planned for BUG are OHDAF and underhand drift-and fill (UHDAF).

Open Pit Mining
The Los Filos Mine Complex comprises three open pit areas: LFOP, GOP, and BOP. Open pit mining is owner-operated, with conventional drilling and blasting. Loading is currently undertaken by shovels and front-end loaders (FEL), and haulage by 136-tonne trucks. A larger mining fleet is proposed to replace the existing equipment at the end of their useful life. Benches are 9 m high with safety berms every second bench (i.e., double-benched to 18 m).

Ore (Crush) is hauled either to the crusher, for crushed heap leach, or directly to an ROM leach pad for processing. A 10,000 t/d CIL processing plant is planned to be constr ........

Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

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Production:
Equinox Gold acquired Los Filos on March 10, 2020 as part of the Leagold Merger. As such, production figures to previous quarters are not presented.

CommodityUnits2023202220212020201920182017
Gold koz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required195191
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics20222021202020182017
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required9,468 kt8.3 Mt
Waste  ......  Subscription required  ......  Subscription required  ......  Subscription required19.3 Mt
Tonnes processed  ......  Subscription required  ......  Subscription required  ......  Subscription required9,561 kt8.4 Mt
Daily processing capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required
Total tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required29,441 kt27.6 Mt
Subscription required - Subscription is required.

Reserves at June 30, 2022:
Underground Mineral Reserves are reported based on a variable NPR cut-off- value varying between $65.8/t and $96.6/t.

Open pit Mineral Resources are reported to a gold cut-off grade of 0.2 g/t. Underground Mineral Resources are reported to a gold cut-off grade: Los Filos South Underground, 1.71 g/t Au; Los Filos North
Underground, 2.05 g/t Au; Bermejal underground 2.71 g/t Au.

CategoryTonnage CommodityGradeContained Metal
Proven 35,453 kt Gold 0.77 g/t 877 koz
Proven 35,453 kt Silver 5.1 g/t 5,809 koz
Probable 157,773 kt Gold 0.88 g/t 4,477 koz
Probable 157,773 kt Silver 7.2 g/t 36,761 koz
Proven & Probable 193,226 kt Gold 0.86 g/t 5,354 koz
Proven & Probable 193,226 kt Silver 6.9 g/t 42,570 koz
Measured 82,395 kt Gold 1.06 g/t 2,795 koz
Measured 82,395 kt Silver 6.7 g/t 17,738 koz
Indicated 428,818 kt Gold 0.79 g/t 10,824 koz
Indicated 428,818 kt Silver 7.6 g/t 105,275 koz
Measured & Indicated 511,213 kt Gold 0.83 g/t 13,620 koz
Measured & Indicated 511,213 kt Silver 7.5 g/t 123,013 koz
Inferred 170,774 kt Gold 0.74 g/t 4,051 koz
Inferred 170,774 kt Silver 8.4 g/t 45,958 koz

Commodity Production Costs:

CommodityUnits202320222021202020182017
Cash costs (sold) Gold USD  ......  Subscription required  ......  Subscription required 815 / oz   835 / oz  
Cash costs (sold) Gold USD  ......  Subscription required ^†  ......  Subscription required†
Total cash costs Gold USD
All-in sustaining costs (sold) Gold USD  ......  Subscription required  ......  Subscription required 985 / oz   964 / oz  
All-in sustaining costs (sold) Gold USD  ......  Subscription required ^†  ......  Subscription required†
All-in sustaining costs (AISC) Gold USD
^ Guidance / Forecast.
† Net of By-Product.
Subscription required - Subscription is required.

Operating Costs:

Units202220212020201820172015
OP mining costs ($/t mined) USD 1.731.451.651.371.381.6
UG mining costs ($/t mined) USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Processing costs ($/t milled) USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
G&A ($/t milled) USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Financials:

Units202320222021202020182016
Capital expenditures (planned) M USD  ......  Subscription required
Sustaining costs M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 10.2  
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 22.2   24  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 241.1  
Operating Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required

Pipelines and Water Supply
Source: Subscription required

- subscription is required.

Heavy Mobile Equipment as of June 30, 2022:
HME TypeModelSizeQuantityStatusLeased or
Contractor
ANFO Loader ....................... Subscription required Proposed Leased
....................... Subscription required ....................... Subscription required Proposed Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Dozer (crawler) ....................... Subscription required ....................... Subscription required Existing
Dozer (crawler) ....................... Subscription required ....................... Subscription required Existing
Dozer (crawler) ....................... Subscription required ....................... Subscription required Existing
Dozer (rubber tire) ....................... Subscription required Existing
Drill (blasthole) ....................... Subscription required ....................... Subscription required Existing
Drill (blasthole) ....................... Subscription required ....................... Subscription required Existing
Drill (blasthole) ....................... Subscription required ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Drill jumbo (single boom) 3 m ....................... Subscription required Existing
Drill jumbo (single boom) 4.3 m ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required Proposed Leased
Excavator ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required Proposed Leased
....................... Subscription required ....................... Subscription required Proposed Leased
Grader ....................... Subscription required Existing
Loader (FEL) ....................... Subscription required ....................... Subscription required Existing
Loader (FEL) ....................... Subscription required ....................... Subscription required Existing
Loader (FEL) ....................... Subscription required ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
....................... Subscription required ....................... Subscription required Proposed Leased
....................... Subscription required ....................... Subscription required Proposed Leased
....................... Subscription required ....................... Subscription required Proposed Leased
Rock bolter 4.9 m ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required Proposed Leased
Scoop Tram 1.5 cu. m ....................... Subscription required Existing
Scoop Tram 2.7 cu. m ....................... Subscription required Existing
Scoop Tram 3.1 cu. m ....................... Subscription required Existing
Scoop Tram 5.4 cu. m ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required Proposed Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
Shovel ....................... Subscription required 15 cu. m ....................... Subscription required Existing
Tire manipulator ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required Proposed Leased
....................... Subscription required ....................... Subscription required Proposed Leased
....................... Subscription required ....................... Subscription required Proposed Leased
....................... Subscription required ....................... Subscription required Proposed Leased
Truck (fuel / lube) ....................... Subscription required Existing
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Leased
Truck (haul) ....................... Subscription required 136 t ....................... Subscription required Existing
Truck (water) ....................... Subscription required Existing
Subscription required - Subscription is required.

Mine Management:

Job TitleNamePhoneProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jun 30, 2022
....................... Subscription required ....................... Subscription required Subscription required Jun 30, 2022
....................... Subscription required ....................... Subscription required Subscription required Jun 30, 2022
....................... Subscription required ....................... Subscription required Subscription required Jun 30, 2022
....................... Subscription required ....................... Subscription required ....................... Subscription required Jan 28, 2022
....................... Subscription required ....................... Subscription required Subscription required Mar 7, 2023
....................... Subscription required ....................... Subscription required Subscription required Mar 7, 2023
....................... Subscription required ....................... Subscription required Subscription required Mar 7, 2023
....................... Subscription required ....................... Subscription required Subscription required Mar 7, 2023
....................... Subscription required ....................... Subscription required Subscription required Mar 7, 2023
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2022
Subscription required Subscription required Subscription required 2018
Subscription required 2017

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2023
Fact Sheet 2023
Annual Information Form 2022
Fact Sheet 2022
Feasibility Study Report 2022
Financial Review 2022
Management Discussion & Analysis 2022
Other 2022
Other 2022
Other 2022
Press Release 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... 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
Corporate Presentation 2018
Management Discussion & Analysis 2018
Press Release 2018
Preliminary Economic Assessment 2017
Quarterly Report 2017
Annual Report 2016
Year-end Mineral Reserves 2016
Annual Report 2015
Year-end Mineral Reserves 2015
Annual Report 2014
Annual Report 2013
Technical Report 2012
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