Private company
Gold mine in Gauteng province near Johannesburg, South Africa
East Rand Proprietary Mines (ERPM) is a 125-year-old underground gold mining operation on the Witwatersrand Basin at Boksburg, to the east of Johannesburg. The mine employed 3,850 people. It was the deepest mine in the world until 2008 at 3,585 metres, slightly more than the TauTona mine, also in South Africa, which was 3,581 metres at the time (in 2008 the TauTona mine completed a digging project that extended the depth of the mine by several hundred metres.)2 It is part of Rand Mines.1 Wikipedia text CC BY-SA 4.0
Last updated Oct 21, 2026.
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East Rand Proprietary Mines (ERPM) is a 125-year-old underground gold mining operation on the Witwatersrand Basin at Boksburg, to the east of Johannesburg. The mine employed 3,850 people. It was the deepest mine in the world until 2008 at 3,585 metres, slightly more than the TauTona mine, also in South Africa, which was 3,581 metres at the time (in 2008 the TauTona mine completed a digging project that extended the depth of the mine by several hundred metres.)2
East Rand Gold Mine is part of a group headed by Rand Mines. 7 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.
Built from subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.
The ERPM engineered many mining techniques which are still in place today, including "Long Wall Mining". The mine also built the world's largest ice factory which produced up to 8,000 t of ice daily to cool wall rock temperatures of 50-60 degrees Celsius.
The mine was acquired by private Malaysian mining company OroTree on 26 February 2019.
From Wikipedia’s article on East Rand Mine, shared under CC BY-SA 4.0.3
Listed on Wikidata.1
Recent production figures:
From Wikipedia’s article on East Rand Mine, shared under CC BY-SA 4.0.3
From Wikidata.1
The numbers on this page point here. Each one links to the record it came from.
