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Finland
Kemi Mine

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 Location:
8 km NE from Kemi, Finland

  Address:
Elijärventie 645
Kemi
Finland
94600
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Financials
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Chrome
Mining Method
  • Sub-level stoping
  • Sub-level caving
  • Bench stoping
  • Backfill
Production Start...
Mine Life2040
Mine in Kemi, Finland is the only chrome mine in the European Union (EU).


Owners

Source: p. 31,166
CompanyInterestOwnership
Outokumpu Oyj 100 % Indirect
Outokumpu Chrome Oy (operator) 100 % Direct
Outokumpu owns and operates a chrome mine in Kemi, Finland.

Contractors

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Deposit Type

  • Intrusion related


Summary:

Kemi mines chromite deposit is part of Kemi layered intrusion. According to Huhtelin (2015) in the central part of the intrusion the main chromite layers length is around 1,9 km and average thickness is 40 m, decreasing outward from the center. The intrusion is estimated to be 3-4 km deep according to the geophysical seismic reflection surveys.

The Kemi layered intrusion has a lenticular shape, that is around 0,2-2 km wide and 15 km long according to Huhtelin (2015). Tectonic movements have tilted the intrusion to dip about 70 degrees to the northwest. The intrusion was metamorphosed during the Svecokarelidec orogeny.

The chromite layer is mainly between metaperiodate layer on the hanging wall side and basalt contact series on the footwall side. The basalt series consist of mylonitic talc-chloritecarbonate schist, talc-carbonate rock, metapyroxenite and irregular concentrates of gabbro. The basement granitoid is in contact with the talc-carbonate rock.

The ore body has been fragmented into a group of smaller ore bodies. The main orebodies illustrated in are: in northern part Pohjois-Viia (PV), in the middle Elijärvi (EL), in the western part both Surmaoja (SO) and Nuottijärvi (NJ). Smaller ore bodies are Mätäsoja (MO) to southwest-, both Länsi-Viia- (LV) and Itä-Viia- (IV) between EL and PV. The last smaller ore body is Viianmaa/Perukka (VP) to northeast from the main ore bodies. (Huhtelin, 2015).


Mining Methods

  • Sub-level stoping
  • Sub-level caving
  • Bench stoping
  • Backfill


Summary:

Kemi mine started as an open pit mine and after that mining transited to underground. Underground mine was constructed in four years, between the years 1999 and 2003. Underground mining was started two years before the open pit mining was finished in 2003.

The infrastructure for underground mining has been built to the footwall side, which is mainly hard granite. Underground mining started from level 550 and continued upwards towards bottom of the crown pillar on level 275 (Rikberg 2019). Currently Outokumpu is investing for expanding the underground mine to the level 1000, where new main level and drift is being built.

Mining method for underground mining has been from the beginning to the present-day underground benching with back fill. Kemi mine’s used stope high to be 25 meters, -width varying from 12 to 18 meters and separation based on the used backfill. Stopes filled with mixture of waste rock and slurry are categorized as primary stopes and stopes filled with waste rock as secondary stopes. Mining staff changes stope width with waste rock and pillars for stabilization of the mining area.

During 2018–2021, Kemi mine is carrying out a Deep Mine project to increase the resource efficiency of the mine. The project is about the depth extension and building underground mine infrastructure from 500-level to 1,000-level (meters) below surface. The area of the mine site has not been expanded.

The ongoing Deep Mine expansion project, ........


Crushing and Grinding
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Processing

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Summary:

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Production:

CommodityProductUnits2021202020192018 *201720162015
Ferrochrome Alloy kt  ......  Subscription required  ......  Subscription required  ......  Subscription required497415469457
Chrome Lump Mt  ......  Subscription required *
Chrome Concentrate kt  ......  Subscription required *
* Average annual production reported in 2018
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120202018
Annual production capacity  ......  Subscription required  ......  Subscription required530,000 t of ferrochrome alloy
Annual mining capacity  ......  Subscription required  ......  Subscription required2.7 Mt of ore
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Reserves at January 1, 2018:

CategoryTonnage Commodity
Proven & Probable 37 Mt Cr2O3
Measured & Indicated 100 Mt Cr2O3

Financials:

Units202120202019201820172016
Capital expenditures M EUR  ......  Subscription required  ......  Subscription required  ......  Subscription required 79   34   20  
Revenue M EUR  ......  Subscription required  ......  Subscription required  ......  Subscription required 542   610   371  
EBIT M EUR  ......  Subscription required  ......  Subscription required  ......  Subscription required 179   187   47  
EBITDA M EUR  ......  Subscription required  ......  Subscription required  ......  Subscription required 210   217   80  
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Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 28, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 28, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 28, 2022
....................... Subscription required ....................... Subscription required Subscription required Sep 28, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2021
Subscription required 2020
Subscription required 2019
Subscription required 2018
Subscription required 2017
Subscription required 2016
Subscription required 2015

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
Other 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
Corporate Presentation 2018
Corporate Presentation 2018
Financial Review 2018
Financial Review 2017
Press Release 2014
Other 2004
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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