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Peru
Toquepala Mine

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 Location:
35 km E from Moquegua, Peru

  Regional Office:
Av. Caminos del Inca 171, Urb. Chacarilla del Estanque
Santiago de Surco
Peru
Phone  ...  Subscription required
Fax(511) 512-0492
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Copper
  • Molybdenum
  • Silver
Mining Method
  • Truck & Shovel / Loader
Processing
  • Sulfuric acid (reagent)
  • Flotation
  • ROM/dump leach
  • Solvent Extraction & Electrowinning


Owners

Source: p. 4
CompanyInterestOwnership
Grupo Mexico S.A. de C.V. 88.91 % Indirect
We conduct our operations in Peru through a registered branch (the “SPCC Peru Branch”, “Branch” or “Peruvian Branch”). The SPCC Peru Branch comprises substantially all of our assets and liabilities associated with our copper operations in Peru.

Deposit Type

  • Porphyry


Summary:

The Toquepala porphyry deposit is located on the western slopes of Cordillera Occidental, in the southern-most region of the Andes mountains range of Peru, approximately 120 kilometers from the border with Chile. This region extends into Chile and is home to many of the world’s most significant known copper deposits. The deposit is part of a mineral district that contains two additional known deposits, Cuajone and Quellaveco. The deposit is in a territory with intrusive and eruptive activities of rhyolitic and andesitic rocks which are 70 million years old (Cretaceous-Tertiary) and which created a series of volcanic lava. The lava is composed of rhyolites, andesites and volcanic agglomerates with a western dip and at an altitude of 1,500 meters. These series are known as the Toquepala Group. Subsequently, different intrusive activities occurred which broke and smelted the rocks of the Toquepala Group. These intrusive activities resulted in diorites, granodiorites and dikes of porphyritic dacite. Toquepala has a simple mineralogy with regular copper grade distribution. Economic ore is found as disseminated sulfurs throughout the deposit as veinlets, replenishing empty places or as small aggregates. Ore minerals include chalcopyrite (CuFeS2), chalcosine (Cu2S) and molybdenite (MoS2). A secondary enrichment zone is also found with thicknesses between 0 and 150 meters.


Mining Methods

  • Truck & Shovel / Loader


Summary:

Our Toquepala operations consist of an open-pit copper mine and two concentrators. Toquepala is located in southern Peru, 30 kilometers from Cuajone and 870 kilometers from Lima, at an altitude of 3,220 meters above sea level.

Our Toquepala operations utilize a conventional open-pit mining method to collect copper ore for further processing in our concentrators.


Crushing and Grinding


Processing

  • Sulfuric acid (reagent)
  • Flotation
  • ROM/dump leach
  • Solvent Extraction & Electrowinning

Source: Subscription required

Summary:

Concentrator
Toquepala concentrator operations use state-of-the-art computer monitoring systems in order to coordinate inflows and optimize operations. Material with a copper grade over 0.40% is loaded onto rail cars and sent to the crushing circuit, where rotating crushers reduce the size of the rocks by approximately 85%, to less than one-half of an inch. The ore is then sent to the rod and ball mills, which grind it in a mix with water to the consistency of fine powder. The finely ground powder mixed with water is then transported to flotation cells. Air is pumped into the cells producing a froth, which carries the copper mineral to the surface but not the waste rock, or tailings. The bulk concentrate with sufficient molybdenum content is processed to recover molybdenum by inverse flotation. This final copper concentrate with a content of approximately 26.5% of copper is filtered in order to reduce moisture to 8.5% or less. Concentrates are then shipped by rail to the smelter a ........

Recoveries & Grades:

CommodityParameter2019201820172016201520142013
Copper Head Grade, % 0.160.160.20.650.640.630.61
Copper Recovery Rate, %  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Copper Concentrate Grade, %  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Molybdenum Recovery Rate, %  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Molybdenum Head Grade, % 0.0330.0280.0290.0430.0540.0420.033
Molybdenum Concentrate Grade, %  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Production:

CommodityProductUnits201920182017201620152014
Copper Cathode kt  ......  Subscription required  ......  Subscription required25252426
Copper Metal in concentrate kt  ......  Subscription required  ......  Subscription required123116119115
Copper Concentrate kt  ......  Subscription required  ......  Subscription required452424429417
Molybdenum Metal in concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Molybdenum Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Silver Metal in concentrate koz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Operational Metrics:

Metrics201920182017201620152014
Total tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required209,064 kt193,013 kt211,202 kt
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required19,940 kt20,150 kt19,922 kt
Tonnes milled  ......  Subscription required  ......  Subscription required  ......  Subscription required20,071 kt20,272 kt19,942 kt
Stripping / waste ratio  ......  Subscription required  ......  Subscription required  ......  Subscription required9.48 8.58 9.6
Daily milling capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required60,000 t600,000 t60,000 t
Annual production capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required56 kt of copper cathode56 kt of copper cathode56 kt of copper cathode
Subscription required - Subscription is required.

Reserves at December 31, 2019:

CategoryOreTypeTonnage CommodityGrade
Proven ROM leach 529,652 kt Copper 0.213 %
Proven Mill / Sulphide 1,881,063 kt Copper 0.538 %
Proven Mill / Sulphide 1,881,063 kt Molybdenum 0.032 %
Probable ROM leach 877,194 kt Copper 0.153 %
Probable Mill / Sulphide 188,499 kt Copper 0.343 %
Probable Mill / Sulphide 188,499 kt Molybdenum 0.012 %
Proven & Probable ROM leach 1,406,846 kt Copper 0.176 %
Proven & Probable Mill / Sulphide 2,069,562 kt Copper 0.521 %
Proven & Probable Mill / Sulphide 2,069,562 kt Molybdenum 0.03 %


Heavy Mobile Equipment as of December 31, 2013:
HME TypeSizeQuantity
Loader (FEL) 28 cu. yd 1
Loader (FEL) 23 cu. yd 1
Loader (FEL) 33 cu. yd 1
Shovel 60 cu. yd 1
Shovel 56 cu. yd 3
Shovel 73 cu. yd 3
Truck (haul) 290 t 28
Truck (haul) 218 t 36
Truck (haul) 363 t 8

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jun 18, 2020
....................... Subscription required ....................... Subscription required Subscription required Jun 18, 2020
....................... Subscription required ....................... Subscription required Subscription required Jun 11, 2020
....................... Subscription required ....................... Subscription required Subscription required Jun 18, 2020
....................... Subscription required ....................... Subscription required Subscription required Jun 18, 2020
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2014

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
................................... Subscription required 2018
Form 10-K 2017
Form 10-K 2016
Form 10-K 2015
Form 10-K 2014
Other 2014
Form 10-K 2013
Subscription required - Subscription is required.

Aerial view:

Subscription required - Subscription is required.

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