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United States
Florence Project

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 Location:
4 km NW from Florence, Arizona, United States

  Project Contacts:
1575 West Hunt Highway
Florence
Arizona, United States
85132
Phone  ...  Subscription required
Fax(520)-374-3999
EmailEmail
WebsiteWeb
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Overview

StagePermitting
Mine TypeIn-Situ
Commodities
  • Copper
Mining Method
  • Solution mining
Mine Life22 years (as of Jan 1, 2023)
The advanced-stage Florence Copper Project strengthens the Company's near-term development pipeline and will significantly increase Taseko’s copper production.

Development of the project is being performed in two phases – the first phase is a production test facility, which is followed by the second phase commercial facility.

Taseko is now advancing the permit amendment process to transition the project to the commercial production facility.


Owners

Source: p. 6
CompanyInterestOwnership
Taseko Mines Ltd. 100 % Indirect
Taseko owns 100% of Curis Holdings (Canada) Ltd., which owns 100% of Florence Holdings Inc., which owns 100% of Florence Copper Inc.

Contractors

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Deposit Type

  • Porphyry


Summary:

Deposit Types The mineral deposit type at the FCP site is a Laramide-age porphyry copper deposit consisting of a large core of copper sulfide mineralization underlying a zone of copper oxide mineralization. The central portion of the deposit is overlain by approximately 400 feet of flat-lying conglomerate and alluvial material that contains a fine-grained silt and clay interbed. The oxide and sulfide zones are separated from one another by a transition zone of mixed oxide-supergene sulfide ranging from 0 to 55 feet in thickness. The depth and grade of the sulfide zone renders it currently uneconomic to mine by conventional mining methods. The impermeability of the rocks and insoluble mineralization of the sulfide zone renders it uneconomic for ISCR methods. Approximately 71% of the oxide mineralization is hosted by a Precambrian quartz monzonite and 26% by Tertiary granodiorite porphyry. The remaining igneous rocks associated with the deposit are Precambrian diabase and Tertiary andesite, latite, dacite, basalt, and aplite. The deposit occurs in a structural horst block, which is bounded on the east and west by grabens and is controlled by normal faults trending north to northwest. Mineralized Zones The mineralized zones consist of an iron-enriched leached cap, an oxide zone, and an underlying sulfide zone. In most instances, the transition from the copper silicates and oxides to the sulfide zone is quite abrupt. A majority of the copper oxide mineralization is located alo ........


Mining Methods

  • Solution mining


Summary:

The extraction method proposed for the Florence Copper Project is in-situ copper recovery (ISCR). ISCR extracts copper by injecting a weak sulfuric acid solution called raffinate through targeted portions of the mineral deposit using an array of injection wells. The raffinate passes through natural fractures and voids in the deposit and dissolves the copper mineralization. The copper laden solution, known as pregnant leach solution (PLS), is collected in recovery wells where it is pumped to the surface for processing. Copper is extracted from the PLS using solvent extraction and electrowinning techniques (SX/EW) producing a saleable copper cathode product and raffinate for recirculating into the well field. Following the copper extraction sequence, the depleted reserve areas are rinsed to remove the remaining process solutions and restore ground water quality to prescribed standards. The ISCR stages are scheduled progressively allowing the first areas extracted to be rinsed and closed while other areas of the well field are under development.

In-situ recovery methods have been used successfully in the mineral extraction industry for over 50 years as an alternative to open pit or underground mining methods for mineral deposits with amenable geological and hydrological properties. In-situ recovery does not require physically handling the mineralized material, overburden, or non-mineralized rock and, consequently, this method does not require many of the activities ty ........


Crushing and Grinding


Processing

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Summary:

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Projected Production:

CommodityUnitsLOM
Copper M lbs 1,524
All production numbers are expressed as cathode.

* According to 2023 study.

Reserves at December 31, 2022:
Mineral Resources and Mineral Reserves are reported without a cut-off grade to reflect the nature of the ISCR extraction method proposed.

CategoryTonnage CommodityGradeContained Metal
Proven 258 M tons Copper 0.35 % 1,812 M lbs
Probable 63 M tons Copper 0.4 % 503 M lbs
Proven & Probable 320 M tons Copper 0.36 % 2,316 M lbs
Measured 292 M tons Copper 0.34 % 1,997 M lbs
Indicated 71 M tons Copper 0.39 % 552 M lbs
Measured & Indicated 363 M tons Copper 0.35 % 2,549 M lbs
Inferred 42 M tons Copper 0.32 % 266 M lbs

Commodity Production Costs:

CommodityUnitsAverage
Cash costs Copper USD  ......  Subscription required&nbs
Total cash costs Copper USD  ......  Subscription required&nbs
Assumed price Copper USD  ......  Subscription required&nbs
* According to 2023 study / presentation.
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2023 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
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Sustaining CapEx $M USD  ......  Subscription required
Total CapEx $M USD  ......  Subscription required
Total OpEx $M USD  ......  Subscription required
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Total Taxes $M USD  ......  Subscription required
Gross revenue (LOM) $M USD  ......  Subscription required
Pre-tax Cash Flow (LOM) $M USD  ......  Subscription required
Pre-tax NPV @ 8% $M USD  ......  Subscription required
After-tax NPV @ 8% $M USD  ......  Subscription required
Pre-tax IRR, %  ......  Subscription required
After-tax IRR, %  ......  Subscription required
Pre-tax payback period, years  ......  Subscription required
After-tax payback period, years  ......  Subscription required
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Water Supply
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Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Apr 11, 2023
....................... Subscription required ....................... Subscription required Subscription required Apr 11, 2023
....................... Subscription required ....................... Subscription required Subscription required Apr 11, 2023
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Staff:

EmployeesYear
Subscription required 2023

Corporate Filings & Presentations:

DocumentYear
Press Release 2023
Technical Report 2023
Annual Information Form 2022
................................... Subscription required 2021
................................... Subscription required 2020
Technical Report 2017
Corporate Presentation 2015
Pre-Feasibility Study Report 2013
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