Australia

Edna May Operation

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Categories

Overview

Mine TypeOpen Pit & Underground
Commodities
  • Gold
  • Silver
Mining Method
  • Sub-level stoping
  • Truck & Shovel / Loader
  • Longhole open stoping
Production Start... Lock
Mine Life2025
ShapshotThe 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

CommodityUnits2024202320222021202020192018
Gold oz 000000000000000000000000000000000072,521
Silver oz
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.

Operational metrics

Metrics202320222021202020192018
Annual milling capacity 0000000000
Waste 00000000000000
Ore tonnes mined 0000000000000000002,079 kt
Tonnes milled 000000000000000000002,010 kt

Production Costs

CommodityUnits2024202320222021202020192018
Credits (by-product) Gold AUD
All-in sustaining costs (sold) Gold AUD 0000 0000 0000 0000 0000 1,251 / oz   1,203 / oz  
All-in sustaining costs (sold) Gold AUD
C1 cash costs Gold AUD 0000 0000 0000 0000 1,123 / oz   1,050 / oz  
C1 cash costs Gold AUD
All-in costs Gold AUD
^ Guidance / Forecast.
Net of By-Product.

Financials

Units2024202320222021202020192018
Capital expenditures (planned) M AUD  ....  Subscribe
Sustaining costs M AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 1.4  
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Revenue M AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 115.1  
Gross profit M AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 15.7  
Pre-tax Income M AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 15.7  
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EBIT M AUD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe
EBITDA M AUD

Heavy Mobile Equipment

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Personnel

Mine Management

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