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Australia
Jundee Mine

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 Location:
46 km NE from Wiluna, Western Australia, Australia

  Address:
Level 1, 388 Hay Street
PO Box 2008 Subiaco WA 6904
Subiaco
Western Australia, Australia
6008
Phone  ...  Subscription required
Fax+61-8-6188-2111
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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 & Underground
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
  • Longhole open stoping
  • Paste backfill
Production Start...
Mine Life10 years (as of Jan 1, 2018)
Since December 2019, the Jundee operations are part of Yandal Operations.

The Jundee Operations include Jundee and satellite mines of Julius and Ramone, and a processing plant.
Latest NewsNorthern Star engages Zenith for renewable power expansion at Jundee     January 31, 2023


Owners

Source: p. 27,40
CompanyInterestOwnership
Northern Star Resources Ltd. (operator) 100 % Indirect
The Jundee Gold Mine (JGM) owned and operated by Northern Star Resources Ltd (NSRLtd).

Sixty-three of the Leases are registered in the name of Newmont Yandal Operations Pty Ltd but Northern Star Resources Limited are the beneficial owners.

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Vein / narrow vein
  • Breccia pipe / Stockwork


Summary:

Jundee Jundee is an Archean gold mineralised deposit that is part of the Northern Yandal Greenstone belt. Gold mineralisation is controlled by a brittle fracture-system, is commonly fracture-centred, and is predominantly hosted in dolerite and basalt. Mineralisation can be disseminated or vein style host. Jundee Open Pit Mineralized zones are variable with true width ranging from 0.5m to 20m. They are extensive along strike and down dip, up to 450m and 350m, respectively. Depth from surface is 350m approximately. Jundee Underground Mineralised zones are narrow, with true width ranging from 0.3 to 1m, but can be up to 5m. They are extensive along strike and down dip, up to 1000m and 500m, respectively, but are often highly discontinuous, and generally have a tabular geometry. Depth = surface to ~1710mRl (~845m below surface). Jundee (Ramone) Ramone is Archean gold mineralised deposit that is part of the Northern Yandal Greenstone belt. Gold mineralisation is hosted by a granite and controlled by a brittle stockwork fracture-system within a north-easterly trending shear zone. The mineralisation formed by a stockwork of veins with smoky quartz, sulphides, minor carbonate, chlorite and sericite hosted by a monzonitic granite. The mineralisation is intruded by an east-west striking (about 096 degrees) vertical dolerite dyke that cross cuts the mineralisation and is part of a suite of magnetic dolerite dykes that intrudes the Yandal belt in an east-west direction. Mineralise ........


Mining Methods

  • Truck & Shovel / Loader
  • Longhole open stoping
  • Paste backfill


Summary:

The Jundee operations consists of underground and open pit feed sources and a processing plant. Three underground portals are in use which provide access to the various underground lode structures, namely the Barton, Gateway and Invicta portals. The Barton portal contains three active ore bodies (Nim3, Lyons and Westside) with development access well advanced in the Armada lode, whilst Invicta consists of the Invicta (remnants), Cardassian, Wilson and Deakin ore bodies. Gateway and Gringotts ore bodies are both mined via the Gateway portal, again with development access well advanced in the Revelation and Nexus lodes. Recent exploration has uncovered a new prospective mining area at depth (Zodiac). The mining process is a geological driven model and production intensive due to the narrow vein nature and lithology of the ore bodies. There is a necessity for controlled mining practices to minimise the amount of waste dilution incurred during the ore extraction process. In general, the ore is mined using top-down long-hole (uphole) open stope bench retreat mining. The benches are nominally 20m apart (vertically). The lode structures have a dip of between 35-70 degrees and have multiple orientations. The mining method typically extracts the ore in 30-50m panels separated by 5-10m rib pillars which remain in-situ to provide geo-mechanical stability and support. For ore structures that dip between 25.0 degrees and 35.0 degrees the ore is extracted using manual mining techniques ........


Crushing and Grinding
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Processing

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Summary:

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Production:

CommodityUnits2022202120202019201820172016
Gold oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required283,288233,556209,515
All production numbers are expressed as metal in doré.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202220212020201920182017
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required2,092,558 t1,678,592 t1,473,241 t
Tonnes milled  ......  Subscription required  ......  Subscription required  ......  Subscription required2,207,099 t1,839,273 t1,527,479 t
Annual processing capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required1.8 Mt
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Reserves at March 31, 2022:
Jundee Open Pit: Mineral Resources are reported at a 0.6g/t cut-off grade.

Jundee (Ramone): Mineral Resources are reported at a 0.45g/t cut-off grade.

Jundee (Julius): Open pit resources have been reported through MSO generation using a 0.68 g/t Au cut-off grade.

CategoryTonnage CommodityGradeContained Metal
Proven 2,473 kt Gold 1.1 g/t 89 koz
Probable 13,006 kt Gold 3.9 g/t 1,651 koz
Proven & Probable 15,479 kt Gold 3.5 g/t 1,740 koz
Measured 2,506 kt Gold 1.1 g/t 90 koz
Indicated 42,854 kt Gold 2.9 g/t 4,017 koz
Inferred 16,670 kt Gold 2.5 g/t 1,319 koz
Total Resource 62,029 kt Gold 2.7 g/t 5,425 koz

Commodity Production Costs:

CommodityUnits202220212020201920182017
Credits (by-product) Gold AUD  ......  Subscription required  ......  Subscription required
Total cash costs (sold) Gold AUD  ......  Subscription required†  ......  Subscription required†
All-in sustaining costs (sold) Gold AUD  ......  Subscription required†  ......  Subscription required†  ......  Subscription required†  ......  Subscription required† 870 / oz†   948 / oz†  
All-in costs Gold AUD  ......  Subscription required†  ......  Subscription required†
† Net of By-Product.
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Financials:

Units2022202120202019201820172016
Growth Capital M AUD  ......  Subscription required
Sustaining costs M AUD  ......  Subscription required
Revenue M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 485.8   379.7   330.6  
Pre-tax Income M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 239.5  
EBITDA M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 284.9   213.2   173.3  
Operating Cash Flow M AUD  ......  Subscription required
Subscription required - Subscription is required


Pipelines
TypeMaterialDiameterLengthDescription


Heavy Mobile Equipment as of December 18, 2022:
HME TypeModelQuantityLeased or
Contractor
Drill ....................... Subscription required ....................... Subscription required Leased
Drill (long hole) ....................... Subscription required ....................... Subscription required Leased
Drill (long hole) ....................... Subscription required ....................... Subscription required Leased
Explosives Charger ....................... Subscription required ....................... Subscription required Leased
Loader ....................... Subscription required ....................... Subscription required Leased
Load-Haul-Dump (LHD) ....................... Subscription required ....................... Subscription required Leased
Truck (haul) ....................... Subscription required ....................... Subscription required Leased
Truck (underground) ....................... Subscription required ....................... Subscription required Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 31, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 31, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 18, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 31, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2021
Subscription required 2020
Subscription required 2019
Subscription required 2018
Subscription required 2017

Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Quarterly Report 2022
Year-end Mineral Reserves 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
Annual Report 2018
Fact Sheet 2018
Annual Report 2017
Annual Report 2016
Fact Sheet 2014
Subscription required - Subscription is required.

News:

NewsDate
Northern Star engages Zenith for renewable power expansion at Jundee January 31, 2023

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