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Australia
Tanami Mine

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 Location:
893 km SW from Darwin, Northern Territory, Australia
  Address:
Tanami Road
PO Box 8020
Alice Springs
Northern Territory, Australia
0871
Phone  ...  Subscription required
Fax+61-8-8993-8500
WebsiteWeb
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  • Overview
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  • Mining
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  • Reserves
  • Costs & Financials
  • Fleet
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  • Filings & News
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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Gold
Mining Method
  • Longhole open stoping
  • Paste backfill
Production Start...
Mine Life12 years (as of Jan 1, 2019)
Tanami is the second largest underground gold mine in Australia.

Tanami Expansion 2, Australia. This project secures Tanami’s future as a long-life, low cost producer with potential to extend mine life to 2040 through the addition of a 1,460 meter hoisting shaft and supporting infrastructure to achieve higher production and provide a platform for future growth. The expansion is expected to increase average annual gold production by approximately 150,000 to 200,000 ounces per year for the first five years beginning in 2024, and is expected to reduce operating costs by approximately 10 percent. Capital costs for the project are estimated to be between $850 and $950 with an expected commercial production date in 2024. Development capital costs (excluding capitalized interest) since approval were $284, of which $158 related to 2021.

Owners

Source: p. 42
CompanyInterestOwnership
Newmont Corp. 100 % Indirect
Newmont uses a wholly-owned Australian subsidiary, Newmont Australia Holdings Pty Ltd as the holding company of its company group in Australia, and Newmont Tanami Pty Ltd for the Tanami holdings.

Contractors

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Deposit Type

  • Sediment-hosted
  • Vein / narrow vein

Summary:

Mining operations are predominantly focused on the Callie and Auron ore bodies in the underground mine at Dead Bullock Soak (“DBS”). Tanami consists of sediment hosted sheeted quartz vein mineralization.

The Project lies in the eastern part of the Early Proterozoic Granites-Tanami Inlier. The basement geology of the Project is predominantly comprised of the sedimentary rocks of the Tanami Group. The remaining basement is predominantly composed of granitic intrusions. The Tanami Group consists of two Formations; the Dead Bullock Formation and the overlying Killi Killi Formation.

The Killi Killi Formation is the most widespread unit across the Project tenements. It is dominated by a thick interval of turbidites, with a felsic volcanic component and a distinctive unit of jasper chert.

The Dead Bullock Formation has been informally divided by the geologists of the Project into two Members; the Callie Member and underlying Ferdies Member. These units host all the known gold mineralisation on the project tenements.

At DBS there are two sub-units (Members) within the Dead Bullock Formation; the Callie Member (which includes SHIM, Orac and the Callie Laminated Beds) and the Ferdies Member (which includes the Lower Auron Beds). Post-mineralization faulting has repeated parts of the stratigraphy and mineralization.

The Callie mineralization is developed in the DBS anticlinorium which is an upright isoclinal fold with local complex ........

Mining Methods

  • Longhole open stoping
  • Paste backfill

Summary:

Currently the Project comprises no active open pit operations. All mining production is from the Callie underground mine.

The levels are named based on the surface Reduced Level of 1,400 m, so 400mRL is located 1,000 m below surface.

Access to the mine is via the Callie Decline located in the footwall of the Callie mine area. At the end of December 2018, the decline had reached the elevation of M20mRL, where “M” represents levels located below 0 mRL (“Minus”). Nominal level spacing is 40 m, with additional sub-levels in the upper part of the mine. For many years, mine production has focused on the Callie mine area and peripheral extensions. The Auron orebody was identified relatively recently, with production activities commencing in 2013. Development of an independent decline system for Auron commenced in 2013 and production activities started late in the same year.

The mining method used at the Tanami is long-hole open stoping with paste or rock backfill, using a 92.5% mine recovery factor and a stope dilution factor that varies according to geotechnical recommendations (7% to 20%).

Mine development is drilled using twin boom electric hydraulic jumbos. The jumbos are also used to install ground support.

The mine is accessed using a 5.5 m wide x 5.8 m high fully arched 1:8 to 1:7 decline. The decline spirals down following the plunge of the ore body on the footwall side. Levels are generally accessed every 40 m with the ........

Crushing and Grinding
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Processing

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Summary:

- subscription is required.

Production:

CommodityUnits2022202120202019201820172016
Gold koz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required496419459
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120202019201820172016
Ore tonnes mined  ......  Subscription required  ......  Subscription required2,883 k tons2,704 k tons2,569 k tons2,725 k tons
Tonnes milled  ......  Subscription required  ......  Subscription required2,867 k tons2,731 k tons2,736 k tons2,651 k tons
Annual milling capacity  ......  Subscription required  ......  Subscription required2.6 Mt2.5 Mt2.4 Mt
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Reserves at December 31, 2021:
Cut-off grade utilized in 2021 reserves not less than 2.20 gram per tonne.

CategoryOreTypeTonnage CommodityGradeContained Metal
Proven Total 12,700 kt Gold 4.97 g/t 2,040 koz
Probable Total 22,100 kt Gold 5.25 g/t 3,740 koz
Proven & Probable Total 34,800 kt Gold 5.15 g/t 5,780 koz
Measured In-Situ (OP) 10,200 kt Gold 1.88 g/t 620 koz
Measured In-Situ (UG) 1,400 kt Gold 3.11 g/t 140 koz
Measured Total 11,600 kt Gold 2.03 g/t 760 koz
Indicated In-Situ (OP) 16,600 kt Gold 1.69 g/t 900 koz
Indicated In-Situ (UG) 4,900 kt Gold 4.25 g/t 660 koz
Indicated Total 21,500 kt Gold 2.27 g/t 1,560 koz
Measured & Indicated In-Situ (OP) 26,800 kt Gold 1.76 g/t 1,520 koz
Measured & Indicated In-Situ (UG) 6,300 kt Gold 4 g/t 800 koz
Measured & Indicated Total 33,100 kt Gold 2.18 g/t 2,320 koz
Inferred In-Situ (OP) 2,900 kt Gold 1.62 g/t 150 koz
Inferred In-Situ (UG) 9,600 kt Gold 5.39 g/t 1,670 koz
Inferred Total 12,500 kt Gold 4.53 g/t 1,820 koz

Commodity Production Costs:

CommodityUnits2022202120202019201820172016
Credits (by-product) Gold USD  ......  Subscription required
Cash costs (sold) Gold USD 498 / oz  
Total cash costs (sold) Gold USD  ......  Subscription required ^†  ......  Subscription required†  ......  Subscription required†  ......  Subscription required† 589 / oz†   616 / oz†   518 / oz†  
All-in sustaining costs (sold) Gold USD  ......  Subscription required ^†  ......  Subscription required†  ......  Subscription required†  ......  Subscription required† 763 / oz†   787 / oz†   739 / oz†  
^ Guidance / Forecast.
† Net of By-Product.
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Financials:

Units2022202120202019201820172016
Capital expenditures (planned) M USD  ......  Subscription required
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 97   108   145  
Sustaining costs M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 68   63   85  
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Pre-tax Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 251   181   242  
Subscription required - Subscription is required

Heavy Mobile Equipment:
HME TypeModelSizeQuantityRef. Date
Drill ....................... Subscription required ....................... Subscription required Dec 31, 2018
Drill jumbo (two boom) ....................... Subscription required ....................... Subscription required Dec 31, 2018
Load-Haul-Dump (LHD) ....................... Subscription required Dec 31, 2021
Truck (underground) 65 t ....................... Subscription required Dec 31, 2021
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Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Feb 28, 2021
....................... Subscription required ....................... Subscription required Subscription required Feb 28, 2021
....................... Subscription required ....................... Subscription required Subscription required Feb 28, 2021
....................... Subscription required ....................... Subscription required Subscription required Mar 29, 2021
....................... Subscription required ....................... Subscription required Subscription required Feb 28, 2021
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Staff:

Total WorkforceYear
Subscription required 2018
Subscription required 2017
Subscription required 2016
Subscription required 2015

Corporate Filings & Presentations:

DocumentYear
Corporate Presentation 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Corporate Presentation 2018
Form 10-K 2018
Mine Operations Plan 2018
Other 2018
Technical Report 2018
Year-end Mineral Reserves 2018
Form 10-K 2017
Year-end Mineral Reserves 2017
Form 10-K 2016
Other 2016
Press Release 2016
Year-end Mineral Reserves 2016
Form 10-K 2015
Other 2014
Corporate Presentation 2013
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