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Canada
Lanigan Mine

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 Location:
11 km W from Lanigan, Saskatchewan, Canada

  Address:
Box 3100
Lanigan
Saskatchewan, Canada
S0K 2M0
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Potash
Mining Method
  • Continuous
  • Room-and-pillar
Production Start...
Mine Life2092
In recent years, the Lanigan mine underwent a major expansion which brought the nameplate capacity to 3.8 million tonnes per year. In 2022, operational capability at the Lanigan facility was 2.7 million tonnes per year. Operational capability may vary during the year and year-to-year including as between our potash operations.


Owners

Source: p. 6,52-53
CompanyInterestOwnership
Nutrien Ltd. 100 % Indirect
Nutrien owns and operates a potash mine at Lanigan, Saskatchewan, Canada indirectly through PotashCorp.

Contractors

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Deposit Type

  • Evaporite


Summary:

The 100 m to 200 m thick Prairie Evaporite Formation is overlain by approximately 400 m of Devonian carbonates followed by 100 m of Cretaceous sandstone, 400 m of Cretaceous shales, and 100m of recent Pleistocene glacial tills to surface. The Prairie Evaporite Formation is underlain by Devonian carbonates. The Phanerozoic stratigraphy of Saskatchewan is remarkable in that units are flat-lying and relatively undisturbed over very large areas.

There are three mineable potash members within the Prairie Evaporite Formation of Saskatchewan. Stratigraphically highest to lowest, these members are: Patience Lake, Belle Plaine, and Esterhazy.

The Lanigan potash deposit lies within the Patience Lake Member of Prairie Evaporite Formation. There are two potash seams named A Zone and B Zone within this Member; both the A Zone and B Zone are being mined at Lanigan. The Belle Plaine potash member is present at Lanigan but is not economically mineable, while the Esterhazy Member is poorly developed and not economically mineable.

Lanigan potash mineralization occurs at an average of about 990 m depth below surface. Salt cover from the top of the A Zone mining horizon to overlying units is approximately 7 metres thick, and salt cover from the top of the B Zone mining horizon to overlying units is approximately 14 metres thick.


Mining Methods

  • Continuous
  • Room-and-pillar


Summary:

At Lanigan, potash ore is mined using conventional mining methods, whereby:
- Shafts are sunk to the potash ore body;
- Continuous mining machines cut out the ore, which is hoisted to surface through the production shaft;
- Raw potash is processed and concentrated in a mill on surface; and
- Concentrated finished potash products (near-pure KCl) are sold and shipped to markets
in North America and offshore.

Potash ore was first hoisted at Lanigan in the fall of 1968. The Lanigan mine has run on a continuous basis since then, other than short-term shutdowns taken for inventory management purposes or occasional plant maintenance and construction work.

Most recently, mill rehabilitation, mine expansion and hoist improvement projects were completed at Lanigan between 2005 and 2010. The expansion construction was carried out without significant disruption to existing potash production from the site. As of December 31, 2018, annual nameplate capacity for Lanigan was 3.8 million tonnes and annual operational capability is 2.0 million tonnes of finished potash products (concentrated KCl).

Virtually all Lanigan underground mining rooms are in one of two potash mineralized zones within the Patience Lake Member of the Prairie Evaporite Formation (the host evaporite salt). In this Member, there are two potash seams named A Zone (the upper seam) and B Zone (the lower seam); at present, both the A Zone and B Zone are being mined a ........


Crushing and Grinding


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Production:

CommodityProductUnits2022202120202019201820172016
Potash Salt Mt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required21.82
K2O t  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Operational Metrics:

Metrics202220212020201920182017
Annual production capacity  ......  Subscription required  ......  Subscription required3.8 Mt of potash salt3.8 Mt of potash salt3.8 Mt of potash salt3.8 Mt of potash salt
Ore tonnes mined  ......  Subscription required  ......  Subscription required7.28 Mt5.83 Mt6.98 Mt6.31 Mt
Subscription required - Subscription is required.

Reserves at December 31, 2022:

CategoryTonnage Commodity
Proven 126 Mt K2O
Probable 432 Mt K2O
Proven & Probable 559 Mt K2O
Measured 5,211 Mt K2O
Indicated 3,384 Mt K2O
Inferred 808 Mt K2O
Total Resource 9,403 Mt K2O


Water Supply
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Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 18, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 18, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 18, 2023
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Staff:

EmployeesYear
Subscription required 2017
Subscription required 2016
Subscription required 2015

Corporate Filings & Presentations:

DocumentYear
Annual Information Form 2022
Annual Report 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Annual Information Form 2018
Technical Report 2018
Annual Information Form 2017
Annual Report 2017
Annual Report 2016
Form 10-K 2016
Annual Report 2015
Form 10-K 2015
Press Release 2015
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