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Chile
Gabriela Mistral Mine

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 Location:
106 km S from Calama, Chile

  Address:
Nueva Oriente 2696, Villa Exótica
Calama
Chile
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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
Commodities
  • Copper
Mining Method
  • Truck & Shovel / Loader
Processing
  • Sulfuric acid (reagent)
  • Heap leach
  • Solvent Extraction & Electrowinning
Mine Life10 years (as of Jan 1, 2015)


Owners

Source: p. 15, 20
CompanyInterestOwnership
Codelco Corp. 100 % Indirect
In 1997, Codelco inaugurated the first operation led by Chileans, the Radomiro Tomic mine, then the Gabriela Mistral.

Codelco Corp. operates seven mine sites (known as “divisiones”): Chuquicamata, Ministro Hales, Radomiro Tomic, Gabriela Mistral, Salvador, Andina, El Teniente, in addition to the Ventanas Smelter and Refinery.

Deposit Type

  • Porphyry


Summary:

Porphyry copper deposit, its main mineralized body is oxidized in a mineralized zone, mainly Chrysocolla, Black and Atacamite oxides in low presence, deposited under sterile coverage of post mineral gravels with an average thickness of 50 m.


Mining Methods

  • Truck & Shovel / Loader


Summary:

Gabriela Mistral in it´s 8th Division operates the largest fleet of autonomous trucks in the world. A fleet of 17 Komatsu 930E4 AT Trucks, allowing to transport 210,000 ton/day of materials.


Crushing and Grinding


Processing

  • Sulfuric acid (reagent)
  • Heap leach
  • Solvent Extraction & Electrowinning

Source: Subscription required

Summary:

The production process involves different stages: crushing (primary, secondary and tertiary), acid curing in drums, heap leaching, tailings disposal, solvent extraction (SX), electro-winning (EW), and the cathodes produced are transported to the Mejillones port.


Production:

CommodityUnits201920182017201620152014
Copper t  ......  Subscription required107,247122,737121,712125,009121,012
All production numbers are expressed as cathode.
Subscription required - Subscription is required.


Reserves at December 31, 2019:

CategoryTonnage CommodityGradeContained Metal
Proven 250 Mt Copper 0.35 % 0.9 Mt
Probable 35 Mt Copper 0.34 % 0.1 Mt
Proven & Probable 285 Mt Copper 0.35 % 1 Mt
Measured 254 Mt Copper 0.35 % 0.9 Mt
Indicated 40 Mt Copper 0.33 % 0.1 Mt
Inferred 81 Mt Copper 0.34 % 0.3 Mt
Total Resource 374 Mt Copper 0.35 % 1.3 Mt

Commodity Production Costs:

CommodityUnits201820162015
C1 cash costs Copper USD 1.92 / lb 1.44 / lb 1.6 / lb

Financials:

Units20192018201720162015
Revenue M USD  ......  Subscription required644  901.41   609.6   664.58  
Gross profit M USD  ......  Subscription required102.64  251.86   95.3   97.4  
Pre-tax Income M USD  ......  Subscription required-4.28  121.77   -6.05   2.73  
After-tax Income M USD  ......  Subscription required-1.39  44.1   -7.69   0.98  
Subscription required - Subscription is required


Heavy Mobile Equipment as of January 1, 2013:
HME TypeModelSizeQuantity
Backhoe 1
Dozer (crawler) 3
Dozer (rubber tire) 5
Drill 4
Grader 3
Loader 2
Shovel 73 cu. yd 2
Truck (haul) ....................... Subscription required 330 t 17
Truck (water) 3
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Dec 31, 2020
....................... Subscription required ....................... Subscription required Subscription required Sep 8, 2020
....................... Subscription required ....................... Subscription required Subscription required Sep 8, 2020
....................... Subscription required ....................... Subscription required Subscription required Sep 8, 2020
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2019
Subscription required 2018
Subscription required 2017
Subscription required 2016
Subscription required 2015
Subscription required 2014

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Corporate Presentation 2018
Annual Report 2017
Corporate Presentation 2017
Annual Report 2016
Corporate Presentation 2016
Financial Review 2016
Annual Report 2015
Other 2013
Subscription required - Subscription is required.

Aerial view:

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