Australia

Edna May Operation

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Overview

Mine TypeOpen Pit & Underground
StatusActive
Commodities
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
  • Longhole open stoping
  • Sub-level stoping
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SnapshotThe Edna May production centre includes the Edna May underground mine and open pit ore trucked in from the Tampia and Marda Gold Mines. The Symes project commenced in 2023 and ore haulage to Edna May is well established.

Mining operations were completed at Tampia and Marda in 2023. Ore remained in stockpiles awaiting haulage to Edna May for processing.

The Edna May open Stage 3 pit Scoping Study mining inventory representing potentially significant life extension to the Edna May production centre. As of December 2023, Stage 3 Pre-Feasibility Study work completed. Project deferred due to market volatility.
Related AssetsEdna May (Stage 3) Project, Marda Mine, Tampia (Narembeen) Mine

Owners

SourceSource
CompanyInterestOwnership
Ramelius Resources Ltd. 100 % Indirect
The Edna May is owned 100% by Ramelius Resources Ltd. subsidiary Edna May Operations Pty Ltd.

The Marda ore deposits are owned 100% by Ramelius Resources Ltd. subsidiary Marda Operations Ltd.

The Tampia deposit is owned 100% by Ramelius Resources Ltd.

Contractors

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Deposit type

  • Metamorphic hosted
  • Breccia pipe / Stockwork
  • Banded iron formation hosted

Summary:

The Edna May production centre includes the Edna May underground mine and open pit the Tampia, Marda and Symes Gold Mines.

Edna May
Hosted by the Edna May Gneiss, a metamorphosed granitoid with strike length of 1km, width of 140m and depth extent of 700m and bounded by a maficultramafic stratigraphy. Mineralisation relates to widespread quartz veining, which occurs as thin sheeted foliation parallel or larger cross-cutting reef veins with a polymetallic sulphide assemblage. Mineralisation forms a broad low-grade stockwork throughout the gneiss.

Dimensions
Edna May gneiss unit is a lenticular body, typically 50-150m thick, 1000m long and defined down-dip to 700m. It strikes east-west and dips N at 50-60°. Internal high-grade quartz reefs occur and strike N-NE and dip 45-50 W. These are generally 100m in length and 2-4m wide.

Tampia
Tampia is hosted within Archaean mafic-felsic granulite facies units. Gold mineralisation is hosted within a mafic gneiss unit dominated by pyroxeneplagioclase - amphibole minerals. Late granitic sills intrude the mafic gneiss. Gold mineralisation occurs as shallow dipping (20°-30°), 2-20m thick lode zones subparallel to the granitic sills. Gold mineralisation of associated with disseminated pyrrhotite, arsenopyrite, chalcopyrite and rare pyrite.

Dimensions
The deposit has a strike of 1000m, down-dip width of around 400m and depth extent of around 150m. The mafic gneiss, granite sills and mineralised lodes have a shallow SE dipping, gently folded orientation forming a ‘bowl’ shaped geometry.

Marda
Mineralisation is likely controlled by shear zones/fault zones passing through competent BIF rock units, hosted with mafic/ultramafic stratigraphy. Gold is associated with pyrite alteration in brecciated BIF, +/- quartz. Deep weathering has generated supergene enhancement of gold within the weathered zone.

Dimensions
Lode and shear hosted styles. Strikes range from 140m (Dugite) to 450m (Golden Orb) and dip at 70-90°. Average lode width approximately 10m, mostly ranging between 2- 20m. Down-dip extents typically 50-75m.

Symes
Shallow dipping gold lodes are hosted within mafic gneiss units, often occurring between intruding pegmatite sill units. Significant mineralisation occurs in shallow flat supergene or in surface laterites.

Dimensions
The main shallow lode zone has a strike of 120m to NE and dips around 25° to the SE with a thickness of 4- 12m. Flat lying supergene zones are around 20-40m wide and 40-100m long. Laterite ore is extensive i.e. 500m x up to 200m, except where previously mined.

Reserves

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Mining Methods

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Comminution

Crushers and Mills

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Processing

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Production

CommodityUnits202420232022202120202019201820172016
Gold oz  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe81,83972,52170,18871,028
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.

Operational metrics

Metrics20232022202120202019201820172016
Annual milling capacity  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe2.7 Mt2.6 Mt
Waste  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe
Ore tonnes mined  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe574 kt2,079 kt2,082 kt2,351 kt
Tonnes milled  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe2,842 kt2,010 kt2,580 kt2,945 kt

Production Costs

CommodityUnits20242023202220212020201920182017
Credits (by-product) Gold AUD -8 / oz  
All-in sustaining costs (sold) Gold AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 1,251 / oz   1,203 / oz  
All-in sustaining costs (sold) Gold AUD 1,440 / oz **  
C1 cash costs Gold AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 1,123 / oz   1,050 / oz  
C1 cash costs Gold AUD 1,309 / oz **  
All-in costs Gold AUD 1,862 / oz **  
^ Guidance / Forecast.
** Net of By-Product.

Financials

Units20242023202220212020201920182017
Capital expenditures (planned) M AUD  ....  Subscribe
Sustaining costs M AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 1.4   2.2  
Capital expenditures M AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 5   28.5  
Revenue M AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 145.6   115.1   116.8  
Gross profit M AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 29.1   15.7  
Pre-tax Income M AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 29.1   15.7  
After-tax Income M AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 29.1   15.7  
EBIT M AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 29.1  
EBITDA M AUD 20.6  

Heavy Mobile Equipment

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Personnel

Mine Management

Job TitleNameEmailProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Feb 26, 2024
....................... Subscription required ....................... Subscription required ........... Subscription required Subscription required Feb 24, 2024
....................... Subscription required ....................... Subscription required Subscription required Feb 24, 2024
....................... Subscription required ....................... Subscription required Subscription required Feb 24, 2024
....................... Subscription required ....................... Subscription required Subscription required Feb 24, 2024
....................... Subscription required ....................... Subscription required Subscription required Feb 24, 2024
....................... Subscription required ....................... Subscription required Subscription required Feb 24, 2024

EmployeesContractorsTotal WorkforceYear
...... Subscription required ...... Subscription required ...... Subscription required 2023
...... Subscription required ...... Subscription required ...... Subscription required 2022
...... Subscription required 2021
...... Subscription required 2020
...... Subscription required 2017

Aerial view:

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