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United States
Blue Diamond Complex

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 Location:
85 km E from London, Kentucky, United States

  Regional Office:
100 Technology Drive
South Charleston
West Virginia, United States
25309
Phone  ...  Subscription required
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Coal (metallurgical)
Mining Method
  • Continuous
  • Room-and-pillar
Production Start...
Mine Life142 years (as of Jan 1, 2022)
Blue Diamond Complex consists of No.77, Calvary No.81, Bear Branch 2 active mines and No.76 Plant.


Owners

Source: p. 1-3
CompanyInterestOwnership
Blackhawk Mining, LLC (operator) 100 % Indirect
Sev.en Energy AG 100 % Indirect
June 1, 2020 – Sev.en Energy AG is pleased to announce that it has acquired US metallurgical coal producer Blackhawk Mining, LLC.
Blue Diamond Mining LLC and Blue Diamond Coal Company operates the mines, which are a subsidiary of Blackhawk Mining LLC.

Contractors

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Deposit Type

  • Sedimentary


Summary:

Coal seams: Fire Clay, Haddix, Hazard, Hindman, Alma, Upper Elkhorn Fire Clay coal bed Flint clay is a claystone composed of microcrystalline to cryptocrystalline kaolinite or halloysite; it is smooth, hard, flint-like in appearance, and breaks with a conchoidal fracture. A flint clay parting in the Fire Clay coal of the Breathitt Formation (Middle Pennsylvanian, estphalian B) occurs throughout most of eastern Kentucky and in parts of Tennessee, Virginia, and West Virginia. Examination of Westphalian continental reconstructions, trade wind patterns, and a present-day, ash-fall distribution indicate that the location of the volcanic source for this flint clay was along a line from Kentucky to North Carolina (approximately due east). The intersection of this line with a palinspastically replaced, known Hercynian magmatic arc occurs in extreme eastern North Carolina. This is the approximate location of the volcanic source for the ash. Because of the extensive distribution of the parting, the Fire Clay coal bed is the only coal bed in eastern Kentucky that can be positively identified over a large area.


Mining Methods

  • Continuous
  • Room-and-pillar


Summary:

Mining Method: Underground/ room and pillar.

Production Equipment: Continuous miner units.

Blue Diamond Mine is a drift mine that uses coal pillars to support the roof. Once the coal seam is mined, the miners start at the far end of the mine removing the coal pillar, allowing the mine’s roof to sink to the floor. When mining operations end, some 95 percent of the coal seam will have been removed and shipped to an end user.


Crushing and Grinding


Processing

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Summary:

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Production:

CommodityUnits202220212020201920182017
Coal (metallurgical) tons  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required992,5531,147,650
All production numbers are expressed as clean coal.
Subscription required - Subscription is required.

Operational Metrics:

Metrics2022
Hourly processing capacity  ......  Subscription required
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Reserves at December 31, 2018:

CategoryTonnage Commodity
Proven & Probable 181.5 M tons Coal (metallurgical)
Total Resource 58.7 M tons Coal (metallurgical)


Pipelines
TypeMaterialDiameterLengthDescription


Heavy Mobile Equipment as of December 31, 2019:
HME TypeModel
Dozer (crawler) ....................... Subscription required
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Mine Management:

Job TitleNameEmailProfileRef. Date
....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Mar 23, 2023
....................... Subscription required ....................... Subscription required Subscription required Mar 23, 2023
....................... Subscription required ....................... Subscription required Subscription required May 24, 2023
....................... Subscription required ....................... Subscription required Subscription required May 24, 2023
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2022
Subscription required 2021
Subscription required 2020
Subscription required 2019
Subscription required 2018
Subscription required 2017

Corporate Filings & Presentations:

DocumentYear
Other 2023
Other 2023
Other 2022
Other 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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