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Australia
Edna May Operation (Tampia (Narembeen) Mine)

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 Location:
1 km N from Westonia, Western Australia, Australia

  Address:

Westonia
Western Australia, Australia
6423
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WebsiteWeb
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  • Mining
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  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit & Underground
Commodities
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
  • Sub-level stoping
  • Longhole open stoping
  • Cemented backfill
Production Start...
Mine Life2025
Edna May: mining and processing of gold from the Edna May region including the Marda and Tampia Gold Mines.


Owners

Source: p. 13
CompanyInterestOwnership
Ramelius Resources Ltd. 100 % Indirect
Edna May Operations Pty Ltd. (operator) 100 % Direct
Mineral tenement and land tenure status: Edna May is owned 100% by Edna May Operations Pty Ltd.
Edna May Operations Pty Ltd, a wholly-owned subsidiary of Ramelius Resources Ltd, is the owner and operator of the Edna May mine.

Contractors

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Deposit Type

  • Metamorphic hosted
  • Breccia pipe / Stockwork


Summary:

The Edna May deposit is located within the Westonia Greenstone Belt, within the Southern Cross Province of Western Australia’s Archaean Yilgarn Craton.

Mineralisation is hosted by the east-west striking, north dipping, Edna May Gneiss (EMG), which has a currently defined strike length of 1km, width of 140m and drilled depth extent of 700m. The EMG is a tonalitic quartz-feldspar-biotite gneiss interpreted to be a strongly metamorphosed granitic intrusion. Mafic-ultramafic amphibolites form the hangingwall and footwall units.

Gold mineralisation is widespread within the EMG and related to two quartz vein sets. One set comprises of widespread, thin, sheeted veins in a ladder of stockwork style, generally sub- parallel to stratigraphy. The second set are less frequent, larger veins which cross-cut the EMG and have much greater continuity. These veins formed the basis of the historical underground ‘reefs’ and the two significant lodes defined in the early 2018 underground infill drilling programme.

These lodes have typical dimensions of 2-5m thickness, strike lengths of 80-110m and currently drilled dip extents of 200m. Associated visible gold is commonly seen in drill core.


Mining Methods

  • Truck & Shovel / Loader
  • Sub-level stoping
  • Longhole open stoping
  • Cemented backfill


Summary:

The Edna May production centre includes the Edna May underground mine and open pit ore trucked in from the Tampia and Marda Gold Mines.

With the completion of the Greenfinch open pit early in the 2022 financial year mining operations at Edna May are now solely focussed on the underground mine.

Edna May Underground
Underground An underground diamond drilling programme was carried out in the September 2021 Quarter which confirmed the extension of the Jonathan and Fuji lodes. Additional drilling at depth is planned for the 2023 financial year.

Greenfinch Open pit
The Greenfinch pit was completed in August 2021 with production for the financial year of 195kt at a grade of 1.14g/t for 6,654 ounces of recovered gold.

Open pit mining methods for Tampia, Marda & Edna May open pit resources using current design, mining equipment and cost parameters.

Selective open stoping underground methods are used for Edna May underground reserves.


Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

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Production:

CommodityUnits2022202120202019201820172016
Gold oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required72,52170,18871,028
Silver oz  ......  Subscription required  ......  Subscription required
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202220212020201920182017
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required574 kt2,079 kt2,082 kt
Tonnes milled  ......  Subscription required  ......  Subscription required  ......  Subscription required2,842 kt2,010 kt2,580 kt
Annual milling capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required2.7 Mt2.6 Mt
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Reserves at June 30, 2022:
A maximum A$2,250/oz gold price has been used to estimate Ore Reserves and determine appropriate cut-offs.

CategoryTonnage CommodityGradeContained Metal
Proven 1,095,000 t Gold 1.5 g/t 52,460 oz
Probable 2,380,000 t Gold 2 g/t 154,000 oz
Proven & Probable 3,430,000 t Gold 1.9 g/t 208,000 oz
Measured 3,500,000 t Gold 1.7 g/t 193,000 oz
Indicated 28,000,000 t Gold 1.1 g/t 969,000 oz
Inferred 7,690,000 t Gold 1 g/t 252,000 oz
Total Resource 39,300,000 t Gold 1.1 g/t 1,410,000 oz

Commodity Production Costs:

CommodityUnits2022202120202019201820172016
Credits (by-product) Gold AUD -8 / oz   -10 / oz  
All-in sustaining costs (sold) Gold AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 1,203 / oz  
All-in sustaining costs (sold) Gold AUD 1,440 / oz†   1,504 / oz†  
C1 cash costs Gold AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 1,050 / oz  
C1 cash costs Gold AUD 1,309 / oz†   1,407 / oz†  
All-in costs Gold AUD 1,862 / oz†   1,605 / oz†  
† Net of By-Product.
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Financials:

Units2023202220212020201920182017
Capital expenditures (planned) M AUD  ......  Subscription required
Sustaining costs M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required 1.4   2.2  
Capital expenditures M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 28.5  
Revenue M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 115.1   116.8  
Gross profit M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 15.7  
Pre-tax Income M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 15.7  
After-tax Income M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 15.7  
EBIT M AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
EBITDA M AUD 20.6  
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Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Nov 23, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 23, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 23, 2022
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Staff:

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

Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Corporate Presentation 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 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Corporate Presentation 2018
Press Release 2018
Quarterly Report 2018
Annual Report 2017
Corporate Presentation 2017
Fact Sheet 2017
Annual Report 2016
Other 2016
Fact Sheet 2010
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