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Brazil
Pilar Mine

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 Location:
2 km SE from Pilar de Goias, Brazil

  Address:
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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
Mining Method
  • Longhole open stoping
  • Room-and-pillar
Production Start...
Mine Life8 years (as of Jan 1, 2018)
Pilar gold mine includes 3 underground mines, 2 in production, and an open pit development project.


Owners

Source: p. 1
CompanyInterestOwnership
Pilar Gold Inc. 100 % Indirect
On April 19, 2021, Equinox Gold Corp. sold its Pilar Gold Mine in Brazil to Pilar Gold Inc.

Contractors

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Deposit Type

  • Orogenic
  • Vein / narrow vein


Summary:

Gold mineralization at the Pilar and Guarinos Greenstone Belts is typical of orogenic gold deposition. The mineralization is related to, and controlled by, major faults and shear zones. At the Pilar mine, these structures are mainly low angle thrust faults and at Guarinos, they are mainly high angle transpressional structures and boudins, both probably related to the final stages of Archean-Paleoproterozoic deformation.

Strong silicification and sulphidation are the main forms of hydrothermal alteration. Host rocks and most carbonaceous meta-sedimentary rocks are well silicified and contain shear-related quartz veins. Arsenopyrite is the main sulphide related to the gold mineralization, while pyrite, and minor chalcopyrite, and pyrrhotite are also present. Gold is present both as free grains in clusters related to quartz veining, and in association with arsenopyrite and other sulphides.

Mineralization at the Pilar mine is located in three main zones:

• HG1 (Basal zone): the most continuous and important style of mineralization in the deposit. The Bazal zone is controlled by carbonaceous schists and intercalated chlorite schists. It is hosted on the basal contact of the chlorite schist with the graphite schist.

• HG2 (Upper zone): an important zone with similar volume to HG1 but with lower grades. The zone is essentially controlled by quartz veins inside the chlorite schists. It is located in the hangingwall portion of the main thru ........


Mining Methods

  • Longhole open stoping
  • Room-and-pillar


Summary:

The Pilar complex currently comprises two underground mining operations. The bulk of the mill feed is produced from the Pilar mine. One satellite deposit, Maria Lázara, currently supplements the Pilar mine production. At the Maria Lázara mine, ore is extracted using traditional longhole sub- level open stoping. The Pilar mine utilizes a custom SRP mining method for approximately 80% of its production. This is supplemented by traditional longhole stoping.

Mining was initiated at the Pilar mine in late 2012 and commercial production was attained in October 2014. The Maria Lázara mine has been in operation since August 2015.

The mineralized deposit at the Pilar mine comprises a series of ore lenses (only one of which is included in the Mineral Reserves) with an average thickness of 0.9 m and dips of 20° to 22°. Typically, most of the Pilar mine’s mineralization ranges from one metre to two metres in thickness.

The mine is accessed through two, five metre by five metre access ramps: one in the west and one in the east.

The Pilar mine development and production heading dimensions, as well as pillar dimensions
are listed below:

• SRP Access Drift/Ramp: 4.5 m wide by 4.5 m high;
• Longhole Access Drift: 4.5 m wide by 4.5 m high;
• SRP Primary Stoping Drift: 5.5 m wide by 1.8 m to 4.2m high;
• SRP Secondary Stoping: 6 m wide by 8 m long;
• Longhole Stopes: 10 m wide by 10 m to 15 m long;
• SRP In- ........


Crushing and Grinding
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Processing

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Summary:

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Production:
Equinox Gold acquired Pilar on March 10, 2020 as part of the Leagold Merger. Operating and financial results for 2020 are for the period from March 10 to December 31, 2020.

CommodityUnits2021 *202020192018201720162015
Gold koz  ......  Subscription required *  ......  Subscription required  ......  Subscription required52748783
All production numbers are expressed as metal in doré. * Average annual production reported in 2021
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Operational Metrics:

Metrics202120202019201820172016
Daily ore mining rate  ......  Subscription required
Daily processing capacity  ......  Subscription required
Ore tonnes mined  ......  Subscription required  ......  Subscription required1,039 kt1,235,238 t1,173,963 t
Tonnes processed  ......  Subscription required  ......  Subscription required1,149 kt1,235,251 t1,174,584 t
Plant annual capacity  ......  Subscription required  ......  Subscription required1 Mt1 Mt1.4 Mt
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Reserves at December 31, 2019:
Mineral Reserves and Resources report is actual on 12/31/2020

CategoryOreTypeTonnage CommodityGradeContained Metal
Proven Total 961 kt Gold 1.51 g/t 47 koz
Probable Total 6,044 kt Gold 1.13 g/t 219 koz
Proven & Probable Total 7,005 kt Gold 1.18 g/t 266 koz
Measured Total 2,389 kt Gold 3.5 g/t 269 koz
Indicated Total 13,479 kt Gold 2.13 g/t 922 koz
Measured & Indicated Total 15,868 kt Gold 2.33 g/t 1,191 koz
Inferred Total 20,399 kt Gold 3.21 g/t 2,108 koz

Commodity Production Costs:

CommodityUnits20202018201720162015
Cash costs (sold) Gold USD  ......  Subscription required 994 / oz  
Cash costs Gold USD 852 / oz   742 / oz   717 / oz  
All-in sustaining costs (sold) Gold USD  ......  Subscription required 1,077 / oz  
All-in sustaining costs (AISC) Gold USD 1,064 / oz   951 / oz   861 / oz  
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Operating Costs:

Units202020182015
UG mining costs ($/t milled) USD 26.22934
Processing costs ($/t milled) USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
G&A ($/t milled) USD  ......  Subscription required
Total operating costs ($/t milled) USD  ......  Subscription required
Subscription required - Subscription is required.

Financials:

Units20202016
Sustaining costs M USD  ......  Subscription required
Capital expenditures M USD  ......  Subscription required 26.4  
Revenue M USD  ......  Subscription required 104  
Operating Income M USD -109.8  



Heavy Mobile Equipment as of May 31, 2018:
HME TypeModelQuantity
Drill (long hole) ....................... Subscription required ....................... Subscription required
Drill (long hole) ....................... Subscription required ....................... Subscription required
Drill jumbo (single boom) ....................... Subscription required ....................... Subscription required
Drill jumbo (two boom) ....................... Subscription required ....................... Subscription required
Load-Haul-Dump (LHD) ....................... Subscription required ....................... Subscription required
Load-Haul-Dump (LHD) ....................... Subscription required ....................... Subscription required
Rock bolter ....................... Subscription required ....................... Subscription required
Rock bolter ....................... Subscription required ....................... Subscription required
Truck (dump) ....................... Subscription required ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Aug 12, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 12, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 12, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 12, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 12, 2022
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
Other 2022
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Corporate Presentation 2018
Corporate Presentation 2018
Management Discussion & Analysis 2018
Press Release 2018
Quarterly Report 2018
Technical Report 2018
Financial Review 2016
Management Discussion & Analysis 2016
Press Release 2016
Technical Report 2016
Year-end Mineral Reserves 2016
Annual Report 2015
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