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United States
Hibbing Taconite Mine (Cleveland-Cliffs 'Steelmaking segment' Operation)

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 Location:
6 km W from Chisholm, Minnesota, United States

  Address:
4950 County Road 5 North
P.O. Box 589
Hibbing
Minnesota, United States
55746
Phone  ...  Subscription required
Fax218-262-6877
WebsiteWeb
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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
  • Iron Ore
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life5 years (as of Jan 1, 2021)
On December 9, 2020, as a result of the AM USA Transaction, Cleveland-Cliffs Inc. acquired an additional 62.3% ownership stake in the Hibbing mine and became the majority owner and mine manager.


Owners

Source: p. 17
CompanyInterestOwnership
United States Steel Corp. 14.7 % Indirect
Cleveland-Cliffs Inc. 85.3 % Indirect
Hibbing Taconite Company (operator) 100 % Direct
The owner of the Property, Hibbing Taconite Company (Hibbing Taconite), is a joint venture (JV) between subsidiaries of Cliffs (85.3% ownership) and U.S. Steel Corporation (U.S. Steel) (14.7%). The Property is managed by Cleveland-Cliffs Hibbing Management LLC, a whollyowned subsidiary of Cliffs.

Contractors

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Deposit Type

  • Banded iron formation


Summary:

The HibTac deposit is an example of Lake Superior-type BIF deposits, specifically the Biwabik Iron Formation (Biwabik IF), which is interpreted to have been deposited in a shallow, tidal, marine setting and is characterized as having four main members (from bottom to top): Lower Cherty, Lower Slaty, Upper Cherty, and Upper Slaty. Cherty units generally have a sandy granular texture, are thickly bedded, and are predominantly composed of chert, magnetite, iron silicates (talc, stilpnomelane), and, in specific geologic units, carbonate (ankerite). Slaty units are fine grained, thinly bedded, and comprised of iron silicates and iron carbonate, with local chert beds, and they are typically uneconomic. The mineral targeted at HibTac is magnetite. Supergene weathering and oxidation has locally altered the primary assemblage to hematite, goethite, and chert, generally increasing in intensity with proximity to isolated occurrences of Cretaceous Coleraine Formation south of the mine and faults or fracture zones. Partial or complete oxidation of magnetite to hematite precludes recovery by magnetic separation, resulting in local degradation of potential ore intervals to waste rock.

The Biwabik IF at HibTac consists primarily of carbonates, iron silicates, fine-grained quartz, and iron oxides. These layers are visually distinct, locally separated into slaty beds and cherty beds. The ratio of slaty to cherty beds and distance between these beds are key indicators used during lo ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Hibbing Taconite Property (HibTac) is mined using conventional surface mining methods. The Mine requires large 200-plus ton mining trucks, and some areas of the pit require long hauls. The surface operations include:

• Clearing and grubbing;
• Overburden (glacial till) removal;
• Drilling and blasting (excluding overburden);
• Loading and haulage.

The Mineral Reserve is based on the ongoing annual average ore production of 21.9 MLT from the Group I, II, III, IV, and V pits, producing an average of 5.6 MLT/y of wet pellets for domestic consumption. The HibTac operations have no current expansion plans and are likely to cease operating once the reserves are depleted by 2026.

The current LOM plan has mining scheduled for five years and mines the known Mineral Reserve. The average stripping ratio is 1.0 waste units to 1.0 crude ore units (1.0 stripping ratio).

There are 20 mining pits/phases with varying dimensions, with a maximum depth of approximately 600 ft attained in two of the pits/phases.

Primary production for all mine pits includes drilling 16.00 in.-diameter rotary blast holes. Production blast hole depth to 40 ft bench heights is drilled. Burden and spacing varies depending on the material being drilled. The holes are filled with explosive and blasted. A combination of front-end loaders (FEL) and electric shovels load the broken material into 240 ton-payload mining trucks for transport from t ........


Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

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^ Guidance / Forecast.

Production:

CommodityUnits2022202120202019201820172016
Iron Ore M long tons  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required7.77.78.1
All production numbers are expressed as pellets. ^ Guidance / Forecast.
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Operational Metrics:

Metrics202220212020201920182017
Total tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required60 M long tons64.7 M long tons64.8 M long tons
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required28.1 M long tons28.8 M long tons29.5 M long tons
Waste  ......  Subscription required  ......  Subscription required  ......  Subscription required31.9 M long tons35.9 M long tons35.3 M long tons
Stripping / waste ratio  ......  Subscription required  ......  Subscription required  ......  Subscription required
Daily milling capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required
Annual production capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required8 M long tons of iron ore pellets8 M long tons of iron ore pellets8 M long tons of iron ore pellets
Tonnes milled  ......  Subscription required  ......  Subscription required  ......  Subscription required28.4 M long tons29.5 M long tons29.9 M long tons
^ Guidance / Forecast.
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Reserves at December 31, 2021:
Mineral Reserves and Mineral Resource estimates are based on a cut-off grade formula dependent on a few variables and restricted to material greater than 13% MagFe.

CategoryTonnage CommodityGrade
Proven 100.1 M long tons Iron (magnetite) 18.7 %
Probable 9.1 M long tons Iron (magnetite) 18.7 %
Proven & Probable 109.3 M long tons Iron (magnetite) 18.7 %
Measured 10.1 M long tons Iron (magnetite) 19.2 %
Indicated 0.6 M long tons Iron (magnetite) 18.7 %
Measured & Indicated 10.7 M long tons Iron (magnetite) 19.2 %

Commodity Production Costs:

CommodityUnits2022
Cash costs Iron Ore USD  ......  Subscription required&nbs
^ Guidance / Forecast.
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Financials:

Units2022
Capital expenditures (planned) M USD  ......  Subscription required
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Pipelines
TypeMaterialDiameterLengthDescription


Heavy Mobile Equipment as of December 31, 2021:
HME TypeModelSizeQuantity
Dozer (crawler) ....................... Subscription required 57 cu. yd ....................... Subscription required
Drill (blasthole) ....................... Subscription required ....................... Subscription required
Grader ....................... Subscription required 16 ft ....................... Subscription required
Loader ....................... Subscription required 37 cu. yd ....................... Subscription required
Shovel (rope) ....................... Subscription required 38 cu. yd ....................... Subscription required
Truck (haul) ....................... Subscription required 240 tons ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Mar 14, 2022
....................... Subscription required ....................... Subscription required Subscription required Mar 14, 2022
....................... Subscription required ....................... Subscription required Subscription required Mar 14, 2022
....................... Subscription required ....................... Subscription required Subscription required Mar 14, 2022
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2021
Subscription required 2020
Subscription required 2019
Subscription required 2018
Subscription required 2017

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Fact Sheet 2018
Form 10-K 2018
Form 10-K 2018
Annual Report 2017
Fact Sheet 2017
Form 10-K 2017
Form 10-K 2017
Annual Report 2016
Annual Report 2016
Form 10-K 2016
Annual Report 2015
Annual Report 2015
Annual Report 2015
Annual Report 2014
Annual Report 2014
Other 2013
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