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Finland
Kevitsa Mine

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 Location:
32 km NE from Sodankylä, Finland
  Address:
Kevitsantie 730
Petkula
Finland
99670
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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
  • Gold
  • Copper
  • Nickel
  • Cobalt
  • Platinum
  • Palladium
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life2032
The Kevitsa Mine is one of Finland’s largest open-pit mines and is an open pit mine operation using conventional truck and shovel operations. The main products are nickel and copper concentrates. Concentrates also include cobalt, platinum, palladium and gold. The ore concentrates are supplied to Boliden’s own smelting plants in Harjavalta and Rönnskär.

Owners

Source: p. 11,12
CompanyInterestOwnership
Boliden AB 100 % Indirect
Boliden Kevitsa Mining Oy (operator) 100 % Direct
In accordance with Finnish regulations, Boliden Kevitsa Mining Oy owns the land within the mining concession. The site operating entity is Boliden Kevitsa Mining Oy.

Contractors

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Deposit Type

  • Magmatic

Summary:

Local
Kevitsa igneous complex layered ultramafic-mafic intrusive rocks dated at 2058 ± 4 Ma (Mutanen & Huhma, 2001). The body of the intrusion extents to 2 km. The Kevitsa intrusions ultramafic units are on lower parts of the intrusion, which is overlain by the gabbroic rocks that are located on the South-West side of the ultramafics. There is a dunite unit in the middle of the deposit, which is disconcordant to magmatic layering as well in the bottom of the intrusion. Xenoliths are common in the ultramafics and within the ore body. They are variable in sizes and by composition; they typically are sedimentary, mafic or ultramafic. There are also several mafic dykes, in the intrusion, ranging in different ages but they are not very voluminous.

The Kevitsa area has undergone several tectonic and metamorphic events which are evident in the intrusion and in the country rocks (Hölttä et al. 2007). The NNE-SSW trending Satovaara fault, and other structures which are associated with it, are a structurally significant feature of the area. The Satovaara fault has deformed the eastern margin of the Kevitsa intrusion and within the deposit, there are smaller scale structures in similar trend.

Property
The Ni-Cu-(PGE) mineralization is located in the centre of the intrusions ultramafic rocks, and it is hosted typically by olivine websterite and its variants. In the broad sense, they can be described as clinopyroxene-dominated rocks with 0-30 % orthopyrox ........

Mining Methods

  • Truck & Shovel / Loader

Summary:

The Kevitsa Mine is a Ni-Cu-PGE open pit mine.

The Kevitsa Mine is an open pit mine operation using conventional truck and shovel operations. BKMOY owns a mining fleet and uses contractor to assist ore re-handling on the ROM pad for primary crusher feed. The onsite technical group supervises the contractor. Since April 2020, ore and waste mining is not assisted anymore by contractor services.

The Kevitsa Mine commenced mining operations in autumn 2011, Hartikainen was then contracted to mine waste from stage 1. Mining has proceeded from initial excavation: stage 1 and stage 2 have been mined out and stage 4 mining has started in 2019. A strategic project will be held during 2022 in order to revise the life of mine with the feasibility of a possible expansion to an additional pushback, stage 5.

The mining sequence broadly follows the sequence of events as follows:
- Grade control RC holes delineate the ore zones;
- Blast patterns designed to reduce material throw and ore dilution - and a Blast Master planning process controls sequence of operation;
- When possible, ore and waste blasted and mined separately as fragmentation requirements vary significantly. Blast movement monitoring is in place to minimize dilution and ore loss for mixed blasts;
- Waste removed on each 12 m bench prior to the mining of ore, removal of waste in the successive cut-backs utilizes planned bulk systems of operation;
- Trim blasts and perimete ........

Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

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Production:

CommodityProductUnits2022202120202019201820172016
Gold Metal in concentrate oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required20,26120,79015,626
Copper Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Copper Metal in concentrate M lbs  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Nickel Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Nickel Metal in concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Cobalt Metal in concentrate t  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Platinum Metal in concentrate oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Palladium Metal in concentrate oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Operational Metrics:

Metrics202220212020201920182017
Tonnes milled  ......  Subscription required  ......  Subscription required  ......  Subscription required7,536 kt7,582 kt7,911 kt
Total tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required39.9 Mt41.3 Mt42.4 Mt
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required7,681,777 t7,932,917 t8,422,255 t
Waste  ......  Subscription required  ......  Subscription required  ......  Subscription required32,227,890 t33,495,535 t34,061,403 t
Annual milling capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required8 Mt
Mining scale, tpd  ......  Subscription required  ......  Subscription required  ......  Subscription required
Processing scale, tpd  ......  Subscription required  ......  Subscription required  ......  Subscription required
Mining days per year  ......  Subscription required  ......  Subscription required  ......  Subscription required
Processing days per year  ......  Subscription required  ......  Subscription required  ......  Subscription required
^ Guidance / Forecast.
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Reserves at December 31, 2022:
Mineral Resources are reported above the optimized pit shell and above a NSR marginal cut-off of 10 EUR/t, which reflects the economic and technical parameters, and below the mine design pit shell used to report the Mineral Reserve.

Mineral Reserves are reported within the pit design at a NSR operational cut-off of 15 EUR/t for 2023, and 13 EUR/t from 2024 onwards.

CategoryTonnage CommodityGrade
Proven 73,200 kt Gold 0.1 g/t
Proven 73,200 kt Copper 0.33 %
Proven 73,200 kt Nickel 0.22 %
Proven 73,200 kt Cobalt 0.01 %
Proven 73,200 kt Platinum 0.21 g/t
Proven 73,200 kt Palladium 0.13 g/t
Probable 28,000 kt Gold 0.1 g/t
Probable 28,000 kt Copper 0.38 %
Probable 28,000 kt Nickel 0.26 %
Probable 28,000 kt Cobalt 0.012 %
Probable 28,000 kt Platinum 0.18 g/t
Probable 28,000 kt Palladium 0.12 g/t
Proven & Probable 101,200 kt Copper 0.34 %
Proven & Probable 101,200 kt Nickel 0.23 %
Measured 52,700 kt Gold 0.08 g/t
Measured 52,700 kt Copper 0.33 %
Measured 52,700 kt Nickel 0.21 %
Measured 52,700 kt Cobalt 0.011 %
Measured 52,700 kt Platinum 0.17 g/t
Measured 52,700 kt Palladium 0.11 g/t
Indicated 88,900 kt Gold 0.07 g/t
Indicated 88,900 kt Copper 0.36 %
Indicated 88,900 kt Nickel 0.36 %
Indicated 88,900 kt Cobalt 0.011 %
Indicated 88,900 kt Platinum 0.11 g/t
Indicated 88,900 kt Palladium 0.07 g/t
Inferred 360 kt Gold 0.02 g/t
Inferred 360 kt Copper 0.16 %
Inferred 360 kt Nickel 0.09 %
Inferred 360 kt Cobalt 0.01 %
Inferred 360 kt Platinum 0.03 g/t
Inferred 360 kt Palladium 0.01 g/t

Commodity Production Costs:

CommodityUnits202220212020201920182017
C1 cash costs Nickel USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 3.15 / lb   2.78 / lb  
C1 cash costs Copper USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 1.46 / lb   1.39 / lb  
C1 cash costs Nickel USD  ......  Subscription required†  ......  Subscription required†  ......  Subscription required†  ......  Subscription required† -0.73 / lb†   -1.5 / lb†  
C3 fully allocated costs Nickel USD
C3 fully allocated costs Copper USD
† Net of By-Product.
Subscription required - Subscription is required.

Operating Costs:

Units201920182017
OP mining costs ($/t mined) EUR 3.142.982.78
Processing costs ($/t milled) EUR  ......  Subscription required  ......  Subscription required  ......  Subscription required
Total operating costs ($/t milled) EUR  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Financials:

Units202220212020201920182017
Capital expenditures M SEK  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 1,221   939  
Revenue M SEK  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 2,922   2,680  
Operating Income M SEK  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 974   893  
Gross profit M USD
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Pipelines and Water Supply
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Heavy Mobile Equipment:
HME TypeModelSizeQuantityStatusRef. Date
Drill ....................... Subscription required 225 mm ....................... Subscription required Existing Dec 31, 2019
Drill ....................... Subscription required 165 mm ....................... Subscription required Existing Dec 31, 2019
Loader (FEL) ....................... Subscription required 220 t ....................... Subscription required Existing Dec 31, 2019
Shovel ....................... Subscription required 569 t ....................... Subscription required Existing Dec 31, 2019
....................... Subscription required ....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Dec 31, 2019
Shovel (hydraulic) ....................... Subscription required 720 t ....................... Subscription required Existing Dec 31, 2019
Shovel (hydraulic) ....................... Subscription required 533 t ....................... Subscription required Existing Dec 31, 2019
Truck (haul) ....................... Subscription required 227 t ....................... Subscription required Existing Dec 13, 2021
Truck (haul) ....................... Subscription required 250 t ....................... Subscription required Existing Dec 31, 2019
Truck (haul) ....................... Subscription required 220 t ....................... Subscription required Existing Dec 31, 2019
Truck (haul) ....................... Subscription required 313 t ....................... Subscription required Existing Dec 31, 2019
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jun 6, 2023
....................... Subscription required ....................... Subscription required Subscription required Jun 6, 2023
....................... Subscription required ....................... Subscription required Subscription required Jun 6, 2023
....................... Subscription required ....................... Subscription required Subscription required Jun 6, 2023
Subscription required - Subscription is required.

Staff:

EmployeesContractorsYear
Subscription required 2022
Subscription required 2021
Subscription required 2020
Subscription required 2019
Subscription required 2018
Subscription required Subscription required 2017
Subscription required Subscription required 2016
Subscription required 2015

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2023
Annual Report 2022
Project Description 2022
Year-end Mineral Reserves 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Quarterly Report 2018
Year-end Mineral Reserves 2018
Annual Report 2017
Annual Report 2016
Annual Report 2016
Financial Review 2016
Technical Report 2016
Annual Report 2015
Annual Report 2014
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