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Botswana
Jwaneng Mine

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 Location:
8 km N from Jwaneng, Botswana

  Address:

Private Bag 002
Jwaneng
Botswana
Phone  ...  Subscription required
Fax+ 267 588 0143
EmailEmail
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Fleet
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Diamond
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life2036
Jwaneng Mine is the richest diamond mine in the world by value.

The scope of the Jwaneng Resource Extension Project (JREP) involves the delivery of an indicated resource estimate down to 850m below surface, which will then support mining operations for the next 20 years including all key expansion activities such as the Cut 8 and Cut 9 projects.


Owners

Source:
CompanyInterestOwnership
Anglo American plc. 42.5 % Indirect
Government of the Republic of Botswana (GRB) 57.5 % Indirect
Debswana Diamond Company (Pty) Ltd (operator) 100 % Direct
Jwaneng Mine is owned and operated by Debswana Diamond Company (Pty) Ltd (Debswana).

Debswana is a joint venture between the government of Botswana and the South African diamond company De Beers; each party owns 50% of the company.

Anglo American owns 85% of De Beers Group, the world's leading diamond company. The remaining 15% is owned by the Government of the Republic of Botswana (GRB). De Beers Group and its partners produce around one third of the world's rough diamonds, by value.

Contractors

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Deposit Type

  • Kimberlite


Summary:

The geological environment at Jwaneng Mine in Botswana is characterized by a complex faulting system that preceded the emplacement of kimberlite into the Transvaal sedimentary sequence.

Jwaneng mine is located in a region that forms part of the semi arid eastern Kalahari Desert in south – central Botswana with most of the area being covered by thick (50 to 80m) superficial deposits.

The Jwaneng D/K2 kimberlite was emplaced as part of a cluster of 11 other kimberlites, with late Permian (280–225 Ma) emplacement ages. The country rock geology of Jwaneng mine is sub-divided into three major packages: Archaean basement; the Transvaal Supergroup, which can be sub-divided into local equivalents of the Pretoria Group sediments, unconformably underlain by the Malmani Dolomite; and a 55–60 m cover of sand and calcrete of the Kalahari Group. The pipes have been emplaced on deep-seated faults, which have in the past also acted as conduits for the emplacement of post-Transvaal-age diabase dykes. The basement in the region is dominated by Archaean amphibolitebearing granite-gneiss and tonalite.

The mine exploits the diamond-bearing kimberlite complex consisting of three main pipes known as the D/K2 kimberlite. D/K2 is a monogenetic trilobate kimberlite complex that coalesced at surface, forming a 54 ha footprint at the preKalahari erosional surface. It consists of several texturally distinct phases of kimberlite, which range from volcaniclastic kimberlit ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Jwaneng is an open pit mine, using traditional truck and shovel methods.

Currently Jwaneng is mining at a depth of 452 metres and is expected to reach 816 metres by 2034.

Jwaneng Mine Pit:
• 1.4km width
• 2km length
• ˜410m deep.

Jwaneng Mine, the world richest mine by value, owned and operated by Debswana will continue to anchor both Debswana and De Beers revenue, following investment in key projects; the Cut 9 project and underground project.

In the first half of 2017, Cut-8 delivered its first ore for Jwaneng, catapulting the mine to ‘super-pit’ status. The cut 8 will come to an end in 2029, according to Debswana, paving way for mining of ore to begin at Cut-9.

Debswana, a 50-50 De Beers- Botswana Government joint venture has invested over P15 billion to catapult the mine life to 2035 with the Cut 9 project.

Cut 9, is currently transitioning from outsourced contractor to in-house operation. Naledi Mining Services is a 100 % owned subsidiary of Debswana. Naledi Mining Services which will undertake the Jwaneng Cut 9 project from January 2023 and provide mining operations skills; these are machine operators, truck operators, shovel operators, supervisors, as well as earth moving equipment repairs and maintenance. Naledi will initially have an employee population of about 750 people, with an annual turnover of P300 million.

Cut-9 project, which commenced in 2019 will reach its bott ........


Crushing and Grinding


Processing

Flow Sheet: Subscription required

Summary:

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Production:

CommodityUnits2022202120202019201820172016
Diamond k carats  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required11,89611,85711,975
All production numbers are expressed as mineral.
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Operational Metrics:

Metrics202120202019
Total tonnes mined  ......  Subscription required  ......  Subscription required84.3 Mt
Waste  ......  Subscription required  ......  Subscription required65.6 Mt
Tonnes processed  ......  Subscription required  ......  Subscription required10.4 Mt
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Reserves at December 31, 2022:
Reported Diamond Reserves and Resources are based on a Bottom Cut-Off (BCO) which refers to the bottom screen size aperture and for Jwaneng Diamond Resources BCO 1.47 mm, Diamond Reserves BCO 1.47 mm.

CategoryOreTypeTonnage CommodityGradeContained carats
Probable In-Situ (OP) 102.5 Mt Diamond 125.4 cpht 128.6 M carats
Indicated In-Situ (OP) 68 Mt Diamond 80.4 cpht 54.6 M carats
Inferred Tailings 22.8 Mt Diamond 84.8 cpht 19.4 M carats
Inferred In-Situ (OP) 80.3 Mt Diamond 82.4 cpht 66.2 M carats


Water Supply
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Heavy Mobile Equipment:
HME TypeModelRef. Date
Shovel (rope) ....................... Subscription required Dec 1, 2022
Truck (haul) ....................... Subscription required May 17, 2017
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Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Apr 11, 2023
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Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required 2021
Subscription required 2020
Subscription required Subscription required Subscription required 2018
Subscription required Subscription required Subscription required 2015
Subscription required 2012

Corporate Filings & Presentations:

DocumentYear
Integrated Report 2022
Other 2022
Year-end Mineral Reserves 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
Annual Review 2018
Management Discussion & Analysis 2018
Other 2018
Year-end Mineral Reserves 2018
Annual Report 2017
Year-end Mineral Reserves 2017
Annual Report 2016
Corporate Presentation 2016
Year-end Mineral Reserves 2016
Annual Report 2015
Year-end Mineral Reserves 2015
Corporate Presentation 2012
Other 2008
Other 2003
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