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Australia

Edna May Operation

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Overview

Mine TypeStockpile
StatusActive
Commodities
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
Production Start... Lock
Mine Life... Lock
SnapshotThe Edna May production centre includes the Edna May underground mine and ore trucked in from the Tampia, Marda, and Symes Gold Mines.

Mining activities across the Edna May hub were completed during the year. The haulage and processing of these stockpiles expected to continue until March 2025, then Edna May goes on care and maintenance.

The combination of the current Edna May underground resource and the Edna May Stage 3 open pit Scoping Study mining inventory represents a potentially significant life extension for the Edna May production center. The project was 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.

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 koz  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe82 73 70 71 
Silver oz 23,67932,972
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.

Operational metrics

Metrics202420232022202120202019201820172016
Ore tonnes mined  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe574 kt2,079 kt2,082 kt2,351 kt
Tonnes milled  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe2,842 kt2,010 kt2,580 kt2,945 kt
Annual milling capacity  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe2.7 Mt2.6 Mt
Waste OP+UG  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe

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 **  
All-in costs Gold AUD  ....  Subscribe
C1 cash costs Gold AUD  ....  Subscribe  ....  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 M AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 5   28.5  
Sustaining costs M AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 1.4   2.2  
Revenue M AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 145.6   115.1   116.8  
Gross profit M AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 29.1   15.7  
Pre-tax Income M AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 29.1   15.7  
After-tax Income M AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 29.1   15.7  
EBIT M AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 29.1  
EBITDA M AUD 20.6  
Operating Cash Flow M AUD  ....  Subscribe

Heavy Mobile Equipment

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Personnel

Mine Management

Job TitleNameEmailProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Dec 4, 2024
....................... Subscription required ....................... Subscription required ........... Subscription required Subscription required Nov 6, 2024
....................... Subscription required ....................... Subscription required Subscription required Nov 6, 2024
....................... Subscription required ....................... Subscription required Subscription required Nov 6, 2024
....................... Subscription required ....................... Subscription required Subscription required Nov 6, 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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