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Australia
Mt Morgans Operation

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 Location:
73 km E from Leonora, Western Australia, Australia

  Regional Office:
Level 19, 58 Mounts Bay Road
Perth
Western Australia, Australia
6000
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Fax+61-8-6323-9099
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeStockpile
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
  • Longhole open stoping
Production Start...
Mt Morgans Gold Operation (MMGO) comprises a 2.5 Mtpa CIL treatment plant, the Jupiter open pit and Westralia underground mining areas.

Open pit mining operations at Jupiter were suspended at the end of June 2022. Underground mining was completed during the September quarter. Dacian has now safely and successfully closed its mining operations and transitioned to processing low grade stockpiles.

Processing of existing stockpiles allows the Company to continue milling operations during FY23 while the Company pivots towards exploration and development under a new leaner operating model that reduces its cost base with the expectation mining operations will recommence in the future.


Owners

Source: p. 29, 77
CompanyInterestOwnership
Dacian Gold Ltd. 100 % Indirect
Mt Morgans Gold Operation is 100% owned by Dacian Gold Ltd.

Contractors

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Deposit Type

  • Banded iron formation hosted
  • Vein / narrow vein
  • Mesothermal
  • Intrusion related


Summary:

All Dacian Gold deposits are located within the Yilgarn Craton of Western Australia.

The Westralia (including Morgans North) deposits banded iron formation (BIF) hosted sulphide replacement, mesothermal Archaean gold deposits comprising sedimentary packages composed predominantly of BIF but also including chert, mudstone, shales, conglomerate and minor felsic volcaniclastic rocks. All are intercalated within or separated by ultramafic volcanic rocks and variably intruded by felsic porphyry dykes and lamprophyres. Gold mineralisation is associated with microscopic quartz carbonate veinlets within BIF. BIF acts as the primary host for mineralisation though other rock types including basalt, porphyry intrusive and ultramafic may also be mineralised in smaller volumes and with less continuity.

The Jupiter deposit is interpreted to comprise structurally controlled mesothermal gold mineralisation related to syenite intrusions within altered basalt. A majority of mineralisation is associated with large shallow east dipping shears, with significant mineralisation developing where these shears cross cut syenite intrusions or the altered basalt proximal to the syenite intrusions. A number of small structures in the form of shears, faults and veins dip either steeply to the west, or moderately towards the north-west, north and/or north-east.

At Maxwells, gold mineralisation is hosted within the BIF and is mineralised over a strike length of ~1km. Gold ........


Mining Methods

  • Truck & Shovel / Loader
  • Longhole open stoping


Summary:

Dacian has now safely and successfully closed its mining operations and transitioned to processing low grade stockpiles.

The Jupiter area - mechanised open pit mining was suspended at the end of June 2022.

The Westralia area - the underground mining method of top-down long hole open stoping with pillars was suspended at September quarter 2022.

The LG Stockpiles are located adjacent to the Jupiter ROM pad. The processing of the LG Stockpile involves loading and hauling to the ROM pad using a loader and trucks. No mining selectivity of the stockpiles is implied as the stockpile reserves are reported at an average grade and assumed that the entire stockpile will be processed at the average grade.

Processing of existing stockpiles allows the Company to continue milling operations during FY23 while the Company pivots towards exploration and development under a new leaner operating model that reduces its cost base with the expectation mining operations will recommence in the future.


Crushing and Grinding
Source: Subscription required


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Production:

CommodityUnits20222021202020192018
Gold koz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required34
All production numbers are expressed as metal in doré.
Subscription required - Subscription is required.

Operational Metrics:

Metrics20222021202020192018
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required2,834 kt
Waste  ......  Subscription required  ......  Subscription required  ......  Subscription required8.3 Mbcm
Tonnes milled  ......  Subscription required  ......  Subscription required  ......  Subscription required2,664 kt
Annual processing capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required2.5 Mt2.5 Mt
Subscription required - Subscription is required.

Reserves at June 30, 2022:

CategoryTonnage CommodityGradeContained Metal
Probable 1,620 kt Gold 0.6 g/t 32,000 oz
Proven & Probable 1,620 kt Gold 0.6 g/t 32,000 oz
Measured 3,780 kt Gold 1.3 g/t 159,000 oz
Indicated 11,730 kt Gold 1.9 g/t 706,000 oz
Inferred 10,670 kt Gold 1.9 g/t 658,000 oz
Total Resource 26,180 kt Gold 1.8 g/t 1,523,000 oz

Commodity Production Costs:

Commodity202220212020
All-in sustaining costs (AISC) Gold  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Financials:

Units20222021202020192018
Revenue M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 1.4  
Gross profit M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Pre-tax Income M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required -32.9  
After-tax Income M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required -5.4  
EBITDA M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 33.5  
Operating Cash Flow M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 17.5  
Subscription required - Subscription is required



Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 26, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 26, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 26, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 26, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 26, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 26, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 26, 2022
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Press Release 2022
Quarterly Report 2022
Year-end Mineral Reserves 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Annual Report 2017
Press Release 2017
Feasibility Study Report 2016
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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