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Spain
Cobre Las Cruces Mine

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 Location:
16 km NW from Sevilla, Spain

  Address:
Carretera SE-3410 – Km. 4,100 Gerena – Sevilla
Spain
41860
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Fax+34-955-783-241
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeTailings
Commodities
  • Copper
  • Gold
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life2023
In 2021, the Las Cruces mine transitioned from open-pit mining to re-processing of high-grade tailings, which is expected to continue until the third quarter of 2023 while work on the Las Cruces Underground Project advances. The proposed underground project involves supplementing the existing copper facilities at Las Cruces with new processing capacity for zinc, silver and lead.

The water concession license was granted in March 2023 and all licenses and permits are now in place for approval of the project. The technical and study work on the polymetallic refinery project are expected to continue with all permits required to carry out the project now granted.
Latest NewsCommission approves €26.7 million Spanish measure to support the upgrade of Cobre Las Cruces' refinery     August 9, 2023


Owners

Source: p. 49
CompanyInterestOwnership
First Quantum Minerals Ltd. 100 % Indirect
Cobre Las Cruces, S.A. (operator) 100 % Direct
Cobre Las Cruces S.A. is the owner and operator of the Cobre Las Cruces mine in Spain. Cobre Las Cruces S.A. is an indirect wholly-owned subsidiary of the First Quantum Minerals Ltd.

Contractors

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Deposit Type

  • VMS
  • Breccia pipe / Stockwork
  • Tailings


Summary:

The Las Cruces deposit is located within the Iberian Pyrite Belt and classed as a Volcanogenic Massive Sulphide (VHMS) deposit. VHMS mineralisation results from precipitation of metals associated with circulating hydrothermal fluids in volcanically active sub-marine areas. The metals precipitate as sulphides (pyrite/phyrrohtite with variable base metal sulphides such as chalcopyrite, sphalerite and galena) and are inter-layered to varying degrees with volcanic sediments.

The Las Cruces deposit, as per many other VHMS deposits, is characterised by a dipping massive sulphide horizon underlain by a stockwork vein system which are both hosted within shales and felsic volcanics. However, at Las Cruces, post deposition tectonism uplifted the deposit, exposing it to erosion and weathering with partial oxidation of some of the primary sulphides. This resulted in a copper leached gossan, which retained the relatively immobile gold and silver and overly the secondary sulphide horizons. The zones of primary sulphide mineralisation are the source of the current gossan and secondary sulphide zones and are key horizons for defining continuous volumes of similar geology and metal tenor. The zones of gossan, secondary sulphide, primary sulphide and stockwork are used as key domains for Mineral Resource estimation.

Mineralisation is characterised by a notable iron oxide gossan which occurs directly above a welldeveloped, flat lying secondary sulphide zone followed by a ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Mining of the secondary orebody in the open pit was completed in August 2020. In 2022 the work mainly focused on rehabilitation activities and mining the tailings installation.

Since early 2009, Cobre Las Cruces (CLC) operations have mined and processed 14.9 million tonnes of secondary sulfide reserves at 5.12% copper grade from its open pit operation. The available secondary sulfide Mineral Reserve is now depleted. In addition, available stockpiles have 5.0 million tonnes of PPS mineralisation with a copper grade of 1.19%, a zinc grade of 2.21% and a lead grade of 1.63%. There are 2.7 million tonnes of gossan mineralisation stockpiles at 2.58 g/t gold grade. CLC has been in operation for twelve years with all six phases of open pit mining now complete.

The CLC secondary sulfide copper reserves were depleted by end of February 2021. Process performance has been successful and designed copper recoveries were improved upon from several plant modifications developed by CLC. During 2019, CLC committed to extending its activity by re-processing tailings from the secondary copper ore operation. Laboratory test work was completed on old tailings with Cu grades above 1%. Metallurgical performance for copper recovery and consumables were good enough to consider this material amenable for leaching processing in the existing facilities. An economic evaluation was followed by copper cathode production from selected old tailings. An estimated 6.3 million tonnes of t ........


Crushing and Grinding
Source: Subscription required


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Production:

CommodityUnits2023202220212020201920182017
Copper t  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required70,73873,664
All production numbers are expressed as cathode. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202220212020201920182017
Annual production capacity  ......  Subscription required  ......  Subscription required72,000 t of copper cathode72,000 t of copper cathode
Tonnes processed  ......  Subscription required  ......  Subscription required1,462 kt1,354 kt1,544 kt1,619 kt
Ore tonnes mined  ......  Subscription required  ......  Subscription required821 kt897 kt1,682 kt2,422 kt
Waste OP  ......  Subscription required  ......  Subscription required1,134 kt2,884 kt14,936 kt14,589 kt
Total tonnes mined  ......  Subscription required  ......  Subscription required1,955 kt
Annual processing capacity  ......  Subscription required  ......  Subscription required1.6 Mt
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Reserves at December 31, 2021:
As of December 31, 2022, there were no changes in the reported Mineral Resources and Reserves at Las Cruces compared to December 31, 2021.

Mineral Resources at Las Cruces are based upon a 1% TCu and CuEq cut-off grade.

CategoryTonnage CommodityGrade
Measured 19.2 Mt Copper 1.49 %
Indicated 25.7 Mt Copper 1.1 %
Indicated 25.7 Mt Gold 0.27 g/t
Measured & Indicated 44.9 Mt Copper 1.27 %
Measured & Indicated 44.9 Mt Gold 0.15 g/t
Inferred 7.1 Mt Copper 1.23 %

Commodity Production Costs:

CommodityUnits202220212020201920182017
All-in sustaining costs (AISC) Copper USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 1.16 / lb   1.06 / lb  
C1 cash costs Copper USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 0.9 / lb   0.86 / lb  
C3 fully allocated costs Copper USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 2.25 / lb   2.15 / lb  
Subscription required - Subscription is required.

Financials:

Units2023202220212020201920182017
Capital expenditures (planned) M USD  ......  Subscription required
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 34   22  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 470   461  
Gross profit M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 116   106  
Operating Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 120   102  
EBITDA M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 326   316  
Subscription required - Subscription is required


Pipelines and Water Supply
Source: Subscription required

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Heavy Mobile Equipment as of June 30, 2015:
HME TypeModelSizeQuantityLeased or
Contractor
Excavator ....................... Subscription required 100 t ....................... Subscription required Leased
Loader (FEL) ....................... Subscription required ....................... Subscription required Leased
Truck (haul) ....................... Subscription required 40 t ....................... Subscription required Leased
Truck (haul) ....................... Subscription required 95 t ....................... Subscription required Leased
Truck (haul) ....................... Subscription required 90 t ....................... Subscription required Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required May 28, 2023
....................... Subscription required ....................... Subscription required Subscription required May 28, 2023
....................... Subscription required ....................... Subscription required Subscription required May 28, 2023
....................... Subscription required ....................... Subscription required Subscription required May 28, 2023
....................... Subscription required ....................... Subscription required Subscription required May 31, 2023
....................... Subscription required ....................... Subscription required Subscription required May 31, 2023
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2017
Subscription required 2016
Subscription required 2015

Corporate Filings & Presentations:

DocumentYear
Management Discussion & Analysis 2023
Annual Information Form 2022
Annual Report 2022
Management Discussion & Analysis 2022
Other 2022
Technical Report 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Financial Review 2018
Press Release 2018
Annual Report 2017
Annual Report 2016
Annual Report 2015
Technical Report 2015
Subscription required - Subscription is required.

News:

NewsDate
Commission approves €26.7 million Spanish measure to support the upgrade of Cobre Las Cruces' refinery August 9, 2023

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