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Mexico
La Caridad Mine

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 Location:
13 km SE from Nacozari de Garcia, Sonora, Mexico

  Regional Office:
Campos Elíseos N° 400 Colonia Lomas de Chapultepec Delegación Miguel Hidalgo
Mexico city
Mexico, Mexico
11000
Phone  ...  Subscription required
Fax(5255)-1103-5567
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
  • Flotation
  • ROM/dump leach
  • Solvent Extraction & Electrowinning


Owners

Source: p. 3, 4
CompanyInterestOwnership
Grupo Mexico S.A. de C.V. 88.91 % Indirect
Our Mexican operations are conducted through our subsidiary, Minera Mexico, S.A. de C.V. (“Minera Mexico”), which we acquired in 2005. Minera Mexico engages primarily in the mining and processing of copper, molybdenum, zinc, silver, gold and lead. Minera Mexico operates through subsidiaries that are grouped into three separate units. Mexicana de Cobre, S.A. de C.V. (together with its subsidiaries, the “La Caridad” unit) operates La Caridad.

Deposit Type

  • Porphyry


Summary:

The La Caridad deposit is a typical porphyry copper and molybdenum deposit as seen also in the southwestern basin of United States.

The La Caridad porphyry copper-molybdenum deposit occurs exclusively in felsic to intermediate intrusive igneous rocks and associated breccias. Host rocks include diorite and granodiorite. These rocks are intruded by a quartz monzonite porphyry stock and by numerous breccia masses, which contain fragments of all the older rock types.

Supergene enrichment, consisting of completes to partial chalcosite (Cu S) replacement of chalcopyrite (CuFeS ). The zone of supergene enrichment occurs as a flat and tabular blanket with an average diameter of 1,700 meters and thickness generally between 0 and 90 meters.

Economic ore is found as disseminated sulfurs within the central part of the deposit. Sulfide-filled breccia cavities are most abundant in the intrusive breccia. This breccia-cavity mineralization occurs as sulfide aggregates which have crystallized in the spaces separating breccia clasts. Near the margins of the deposit, mineralization occurs almost exclusively in veinlets. Ore minerals include chalcopyrite (CuFeS2), chalcosite (CuS) and molybdenite (MoS).


Mining Methods

  • Truck & Shovel / Loader


Summary:

The La Caridad mine uses a conventional open-pit mining method.


Crushing and Grinding


Processing

  • Flotation
  • ROM/dump leach
  • Solvent Extraction & Electrowinning

Source: Subscription required

Summary:

Concentrator.
La Caridad uses state-of-the-art computer monitoring systems at the concentrator, the crushing plant and the flotation circuit in order to coordinate inflows and optimize operations. The concentrator has a current capacity of 94,500 tons of ore per day. Ore extracted from the mine with a copper grade over 0.30% is sent to the concentrator and is processed into copper concentrates and molybdenum concentrates. The copper concentrates are sent to the smelter and the molybdenum concentrate is sold to a Mexican customer. The molybdenum recovery plant has a capacity of 2,000 tons per day of copper-molybdenum concentrates. The lime plant has a capacity of 340 tons of finished product per day.

SX-EW Plant.
Approximately 757.7 million tons of leaching ore with an average grade of approximately 0.245% copper have been extracted from the La Caridad open-pit mine and deposited in leaching dumps from May 1995 to December 31, 2015. All copper ore with a grade lower ........

Recoveries & Grades:

CommodityParameter2019201820172016201520142013
Copper Recovery Rate, %  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Copper Head Grade, % 0.360.350.360.360.240.240.22
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, % 0.0360.0340.0350.0350.0360.0390.044
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 required28282725
Copper Metal in concentrate kt  ......  Subscription required  ......  Subscription required106105104101
Copper Concentrate kt  ......  Subscription required  ......  Subscription required443447455459
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 required98,435 kt94,283 kt91,454 kt
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required34,648 kt34,445 kt34,251 kt
Tonnes milled  ......  Subscription required  ......  Subscription required  ......  Subscription required34,539 kt34,468 kt34,427 kt
Stripping / waste ratio  ......  Subscription required  ......  Subscription required  ......  Subscription required1.84 1.74 1.67
Subscription required - Subscription is required.

Reserves at December 31, 2018:

CategoryOreTypeTonnage CommodityGrade
Proven ROM leach 429,028 kt Copper 0.185 %
Proven Mill / Sulphide 2,119,208 kt Copper 0.227 %
Proven Mill / Sulphide 2,119,208 kt Molybdenum 0.029 %
Probable ROM leach 150,927 kt Copper 0.174 %
Probable Mill / Sulphide 1,124,643 kt Copper 0.212 %
Probable Mill / Sulphide 1,124,643 kt Molybdenum 0.03 %
Proven & Probable ROM leach 579,955 kt Copper 0.182 %
Proven & Probable Mill / Sulphide 3,243,851 kt Copper 0.222 %
Proven & Probable Mill / Sulphide 3,243,851 kt Molybdenum 0.03 %


Heavy Mobile Equipment as of December 31, 2013:
HME TypeSizeQuantity
Grader 3
Loader 5
Shovel 43 cu. yd 6
Truck (haul) 240 tons 23
Truck (haul) 360 tons 4

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jun 30, 2020
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
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
Form 10-K 2013
Subscription required - Subscription is required.

Aerial view:

Subscription required - Subscription is required.

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