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Underground Mining

Underground mining is a method of extracting minerals, metals and other geological materials from beneath the earth's surface through the construction of tunnels, shafts and other subterranean workings. The technique is employed when ore deposits lie at depths that make surface mining uneconomical or impractical, typically beyond 150 m to 200 m, though the transition depth varies according to ore grade, geology and commodity prices. Underground mining encompasses a range of methods including room-and-pillar, longwall, block caving, sublevel stoping and cut-and-fill, each suited to different ore body geometries, rock strengths and economic constraints. The sector is capital intensive, requiring substantial investment in shaft sinking, ventilation systems, hoisting infrastructure, ground support and safety equipment. Operating costs per tonne are generally higher than for openpit operations, but underground mining allows access to high-grade deposits and extends the life of mines as surface reserves deplete. Major underground mining regions include South Africa's deep-level gold and platinum operations, Australia's base metal and gold mines, Canada's nickel and potash workings, and Chile's copper mines. The method is prevalent in diamond mining, where kimberlite pipes often extend to great depth, and in coal extraction where seams lie below economically strippable overburden. Technological advances in automation, remote operation and real-time monitoring are progressively improving safety and productivity in underground environments. The industry faces ongoing challenges including ventilation and cooling at depth, rock burst and seismic risk, water ingress, and the recruitment and retention of skilled labour willing to work in confined and hazardous conditions.

Underground Mining News


An image of gold bars
Horne 5 project, Canada
28th August 2026 By: Sheila Barradas

Falco Resources confirms a technically and economically viable 15-year underground operation, with materially improved project economics reflecting updated metal-price assumptions, and capital and... 


SOLUTIONS ON SHOW
Engineered for challenging underground environments, the FUDU CMR4 face drill and ConX-D200 Barbet robot demolition rig deliver enhanced safety, precision, manoeuvrability and productivity where performance matters most
Innovative equipment highlights safety, productivity
28th August 2026

Conax Machine Solutions will participate in this year’s Electra Mining Africa exhibition, showcasing its latest equipment, engineering capabilities and innovative solutions such as a low-profile... 


Image of Pinnacles mine
Pinnacles mine, Australia
14th August 2026 By: Sheila Barradas

A silver/lead/zinc mine about 15 km south-west of Broken Hill, New South Wales, Australia. 


The above image depicts two blasting technicians mapping out a blasting design
Integrated workflow improves blasting
14th August 2026 By: Lynne Davies

Unlike traditional blasting practices where individual activities are often managed independently, an integrated workflow ensures that planning, execution and performance evaluation are fully... 


Drilling at the Buckreef project
Buckreef gold project expansion, Tanzania – update
24th July 2026 By: Sheila Barradas

Work is continuing on the existing 2 000 t/d processing plant. 


Duketon mine
Regis lifts 2027 production guidance
17th July 2026 By: Marleny Arnoldi

Having met the top-end of its yearly guidance for 2026 and as it advances an underground development project, ASX-listed Regis Resources has increased its 2027 yearly production guidance to between... 


Image of gold ore
Round Mountain mine, US
17th July 2026 By: Sheila Barradas

A gold mine in the Big Smoky Valley, in Nye County, central Nevada, US.  


Image of gold processing plant
Round Mountain Phase X project, US
10th July 2026 By: Sheila Barradas

Kinross Gold Corporatiom expects to produce about 1.4-million gold equivalent ounces from the proposed project over an initial 11-year mine life from 2028. 


Insuring construction plant and equipment in underground mines
Insuring construction plant and equipment in underground mines
7th July 2026

Mining in South Africa is primarily conducted through alluvial, opencast, and underground mining methods, with underground mining generally being the most capital-intensive. How often do we hear or... 


 Japie du Plessis, MD of Cementation Africa
Japie du Plessis
12th June 2026 By: Creamer Media Reporter

This week we profile Japie du Plessis, MD of Cementation Africa, an underground contract mining company 


The Gold Room and smelter at Fortuna's Séguéla’ underground mining operation
West Africa a development hotspot – miner
29th May 2026 By: Halima Frost

Mining development in West Africa is entering a new growth phase shaped around the development of more technically complex projects, particularly underground mining opportunities; higher... 


Magazine Cover Image
Inside Tharisa’s life-extending transition from openpit to underground mining
22nd May 2026 By: Natasha Odendaal

On March 31, 2026, just after 14:00, the detonation of 650 kg of explosives broke through the first rocks to enable access to underground resources at the Tharisa mine, located on the western limb... 


Magazine Cover Image
Inside Tharisa’s life-extending transition from openpit to underground mining
22nd May 2026 By: Natasha Odendaal

On March 31, 2026, just after 14:00, the detonation of 650 kg of explosives broke through the first rocks to enable access to underground resources at the Tharisa mine, located on the western limb... 


Image of Matla mine
Matla Life-of-Mine Project – New Mine 1 project, South Africa – update
22nd May 2026 By: Sheila Barradas

Exxaro Resources officially opened the New Mine 1 operation at Matla colliery on May 15, 2026.  


Image of a miner applying a water-sealing solution underground
Effective control of groundwater helps protect underground infrastructure
15th May 2026

Managing groundwater ingress is recognised as one of the most complex technical challenges in underground mining. Water-bearing fissures, fractured rock formations and unexpected inflows can... 


Karowe walkway to heaven
Karowe diamond mine underground project, Botswana – update
15th May 2026 By: Sheila Barradas

The project has been materially derisked following the completion of shaft sinking in 2025. 


Stockpiles at the Tharisa mine
Tharisa PGMs underground project, South Africa – update
15th May 2026 By: Sheila Barradas

Tharisa Minerals had concluded a five-year contract with Cementation Africa for underground mining development and construction works at the Tharisa mine. 


Image of the Jwaneng mine
Jwaneng underground project, Botswana – update
8th May 2026 By: Sheila Barradas

Debswana is pressing ahead with its plan to prolong the life span of its flagship Jwaneng mine to 2054. 


Image of the Venetia mine
Venetia Underground Project, South Africa – update
8th May 2026 By: Sheila Barradas

The underground project is progressing in line with the mine's reconfigured plan. 


Cementation Africa
Cementation Africa guides mines safely to steady state production
24th April 2026

Transitioning from development to steady state production remains one of the most challenging phases in a mine’s lifecycle. Whether it involves a greenfield project, expansion or conversion from... 


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pqt: 0.202s - ct: 0.258s - 275pq - 2rq
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