Overview
Stage | Construction |
Mine Type | Tailings |
Commodities |
|
Mining Method |
- Hydraulic mining
- Truck & Shovel / Loader
|
Production Start | ... |
Mine Life | 13 years (as of Jan 1, 2022) |
The Mogale Tailings Retreatment project (MTR project) consists of the Mogale Cluster tailings storage facilities (TSFs) and the Soweto Cluster TSFs(MSC).
The Company completed a definitive feasibility study on the Mogale Gold TSFs and announced the results of this study on 30 June 2022 (the study). The study demonstrated compelling economics and the potential to significantly increase the Group’s gold production (an increase in excess of 25% compared to current Group annual production) over an initial life-of-mine of 13 years. Remining of the MSC TSFs has the potential to add further production upside and extend the life-of-mine to 21 years. |
Latest News | Tailings Retreatment: Mogale heads for year-end start-up March 27, 2024 |
Source:
p. 4,7,123
As announced on SENS on 6 October 2022, the Company closed the transaction whereby Mogale Tailings Retreatment Proprietary Limited (MTR), a wholly owned subsidiary of the Company, would acquire the total share capital and claims of Mogale Gold and MSC, (collectively, the sale transaction).
Contractors
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Summary:
The ore that will be treated at the MTR plant originated from the previously mined and metallurgically treated Kimberley, Bird, Livingstone, South and Main Reefs from historical gold mining operations of WRCM, Luipaardsvlei Gold Mine, Rand Leases and DRD Gold. The reefs are arenaceous conglomeratic sedimentary rocks of the Archaean age and are generally considered as ancient river placers. These reefs are frequently less than a metre thick and characterised by abundant pyrite, which may comprise up to 5% of the reef, as well as flyspeck and/or seam carbon/kerogen. These three components display a strong spatial correlation with the gold mineralisation, which is rarely visible, in the 10 to 20 micron range.
The tailings of the treated material were deposited onto various TSFs on surface that will be reclaimed over the modelled life of the operation. Once re-treated, the final tailings emanating from these TSFs will be consolidated into a modern tailings facility, through the filling of legacy opencast mines and the construction of an enlarged modern facility on the 1L23-25 footprint. This will reduce the MTR plant’s environmental footprint and associated environmental impact.
Mining Methods
- Hydraulic mining
- Truck & Shovel / Loader
Summary:
The study envisages hydro-mining to be utilised for the larger dumps, using hydraulic guns of similar specification as used at Elikhulu, cutting mine widths of 15m wide and 20m deep. The North Sands and South Sands dumps are conducive to load-and-haul mining, to extract the resources from these dams.
A surface remining site with road access from all surface material sources to the plant. Ore will be pumped (hydraulic remining) to the MTR plant in slurry form.
Source:
Summary:
- subscription is required.
Projected Production:
Commodity | Units | Avg. Annual |
Gold
|
koz
| 50 |
Operational Metrics:
Metrics | |
Annual processing capacity
| ...... |
Ore tonnes mined, LOM
| ...... |
* According to 2022 study.
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Reserves at June 30, 2023:
Mineral Resources are reported inclusive of Mineral Reserves.
Category | OreType | Tonnage | Commodity | Grade | Contained Metal |
Probable
|
Tailings
|
119.33 Mt
|
Gold
|
0.29 g/t
|
1.1 M oz
|
Indicated
|
Tailings
|
121.62 Mt
|
Gold
|
0.29 g/t
|
1.13 M oz
|
Inferred
|
Tailings
|
4.65 Mt
|
Gold
|
0.33 g/t
|
0.05 M oz
|
Total Resource
|
Tailings
|
126.27 Mt
|
Gold
|
0.29 g/t
|
1.18 M oz
|
Commodity Production Costs:
| Commodity | Units | Average |
All-in sustaining costs (AISC)
|
Gold
|
USD
|
......
|
Assumed price
|
Gold
|
USD
|
......
|
* According to 2022 study / presentation.
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Operating Costs:
| Units | 2022 |
Total operating costs ($/t milled)
|
USD
| 5 * |
* According to 2022 study.
2022 Study Costs and Valuation Metrics :
Metrics | Units | LOM Total |
Initial CapEx
|
$M USD
|
......
|
Pre-tax NPV @ 9.5%
|
$M USD
|
......
|
Pre-tax IRR, %
|
|
......
|
Pre-tax payback period, years
|
|
......
|
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Corporate Filings & Presentations:
Document | Year |
...................................
|
2023
|
...................................
|
2022
|
...................................
|
2022
|
...................................
|
2022
|
Other
|
2021
|
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News:
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