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Mintek

Mintek is a South African state-owned science and technology organisation specialising in mineral processing, extractive metallurgy and related technologies. The entity operates as a statutory research organisation under the Department of Science and Innovation, with a mandate to serve the minerals industry through applied research, development and technology transfer. Mintek is headquartered in Randburg, Johannesburg, and maintains pilot-plant facilities and laboratories that support the beneficiation of South Africa's mineral resources. The organisation conducts research across a range of metallurgical processes, including pyrometallurgy, hydrometallurgy, electrometallurgy and mineral processing. Its work spans base metals, precious metals, platinum-group metals, ferrous metals and increasingly critical minerals such as rare earth elements. Mintek provides technical services to mining companies, smelters and refiners, and develops proprietary technologies for licensing. Notable innovations include the Mintek Thermal Magnesium Process and various leaching and recovery techniques. The organisation also offers analytical services, process design, feasibility studies and training. Mintek collaborates with industry, universities and international research bodies to advance mineral technology and support the competitiveness of South Africa's mining sector. It was established in 1934 as the National Institute for Metallurgy and was reconstituted as Mintek in 1989.

Mintek News


Women leaders counted in across all levels in mining
Women leaders counted in across all levels in mining
3rd August 2026

The rapid advancement of technology and modernisation is reshaping South Africa's historically labour-intensive mining sector. As the industry shifts from reliance on physical strength to a more... 


Process shows promise for brine pond treatment
31st July 2026 By: Devina Haripersad

A biological sulphate reduction process has shown potential to treat hypersaline brine ponds produced by coal mining operations. After successful bench-scale testing, pilot-scale work is now... 


Magazine cover image
AI could unlock discoveries if geologists stay in control
24th July 2026 By: Tasneem Bulbulia

The increasing uptake of AI in many spheres of life has also extended to geology, where it has found several applications with varying degrees of success, although there are myriad ethical, safety... 


Magazine cover image
AI could unlock discoveries if geologists stay in control
24th July 2026 By: Tasneem Bulbulia

The increasing uptake of AI in many spheres of life has also extended to geology, where it has found several applications with varying degrees of success, although there are myriad ethical, safety... 


This week: Mintek targeting global flotation research recognition; First doré gold bar pour at DRDGOLD’s new Far West smelt house and, Expansion plans pointing to 75% increase in Sibanye-Stillwater’s chrome volumes
Resources Watch
22nd July 2026

This week: Mintek targeting global flotation research recognition; First doré gold bar pour at DRDGOLD’s new Far West smelt house and, Expansion plans pointing to 75% increase in... 


Photo of Martin Creamer
On-The-Air (17/07/2026)
17th July 2026 By: Martin Creamer

Martin Creamer talks about DRDGOLD's R10-billion investment in five new gold-from-waste projects, a R900-million-plus platinum group metals shaft development in North West province, and Mintek's... 


DRDGOLD, Sibanye-Stillwater, Mintek make headlines
DRDGOLD, Sibanye-Stillwater, Mintek make headlines
17th July 2026

Mining Weekly Editor Martin Creamer tell us how the new elution circuit and smelt house facility at DRDGOLD's Far West Gold Recoveries is performing; he discusses the R964m that is to be spent at... 


Mintek Post-Doctoral Research Fellow Dr Mandla Chabalala.
Mintek targeting global flotation research recognition, PGM Industry Day hears
14th July 2026 By: Martin Creamer

South Africa’s national mineral research organisation Mintek is targeting global recognition as a minerals flotation researcher, the State-owned organisation emphasised at its recent platinum group... 


An image of an Ironveld smelter
Ironveld highlights progress with DMS plant
14th July 2026 By: Tasneem Bulbulia

Aim-listed Ironveld, in an operational update on its dense media separation (DMS) plant in Limpopo, South Africa, has highlighted significant progress in production stability, product quality,... 


Northern Cape copper, South African PGMs make headlines
Northern Cape copper, South African PGMs make headlines
10th July 2026 By: Creamer Media Reporter

Mining Weekly Editor Martin Creamer discusses the growing activity in copper exploration and mining in the Northern Cape; Mintek's plans to add value to the South African platinum group metals... 


Image of rare earths
Phalaborwa Rare Earths Project, South Africa – update
10th July 2026 By: Sheila Barradas

Work is continuing at the project, with the focus being on optimising and simplifying the flowsheet to enhance the plant operability and reduce risk when moving to commercial scale. 


Mintek Physical Separation Head Gertrude Marape
Mintek spells out value of PGM preconcentration plus chrome recovery
9th July 2026 By: Martin Creamer

Successful removal of coarse waste is beneficial in that it reduces power requirements in the milling circuit, lowers water needs, and increases platinum group metal (PGM) feed grades. With... 


Women in mining urge greater dialogue with men, survey finds
Women in mining urge greater dialogue with men, survey finds
9th July 2026

Women-owned business Pinpoint Stewards will be hosting the 5th Annual Women & Leadership in Mining Conference on September 1 to September 2,  2026, as they aim to bring women across various mining... 


Mintek Minerals Processing Division Senior Engineer Dr Sandile Nkwanyana.
Mintek keen to do bottleneck-exposing surveys for platinum metals processors
7th July 2026 By: Martin Creamer

South Africa’s national minerals research organisation Mintek has highlighted the value of conducting bottleneck-exposing comminution circuit surveys at platinum group metals (PGM) processing... 


A generic image of mineralised uranium
Neo Energy Metals advances uranium, gold project rollouts amid corporate restructuring
30th June 2026 By: Lumkile Nkomfe

Aim-listed Neo Energy Metals has made progress across its New Beisa and Henkries uranium and gold projects, in the Free State and the Northern Cape, in South Africa, respectively, for the quarter... 


Mintek supervisor: applied chemical analysis Nehemiah Mukwevho.
Attributes of platinum group metals explicated at Mintek PGM Day
30th June 2026 By: Martin Creamer

Platinum group metals (PGMs) have several properties that make them critical everyday-life minerals, Mintek supervisor applied chemical analysis Nehemiah Mukwevho explicated during his presentation... 


Mintek principal scientist Dr Nthapo Sehlotho.
Mintek outlines how value can be added to South Africa’s PGM mining industry
26th June 2026 By: Martin Creamer

South Africa's national mineral research organisation Mintek on Friday, June 26 spelt out how it can add value to South Africa’s platinum group metals (PGMs) industry. At its corporate head office... 


Pontsho Twala, director of the Wits Mining Institute
Pontsho Twala
26th June 2026 By: Creamer Media Reporter

This week we profile Pontsho Twala, director of the Wits Mining Institute, a multidisciplinary research institute that undertakes research in the mining sector, with a strong focus on technology,... 


Shaft at the Steenkampskraal project
Steenkampskraal monazite mine, South Africa – update
26th June 2026 By: Sheila Barradas

Steenkampskraal Holdings and South Africa’s national mineral research organisation Mintek have announced the successful production of high-purity mixed rare earth products at Mintek’s laboratory... 


Mintek CEO Dr Molefi Motuku; SMM executive chairperson and shareholder Dr Enock Mathebula; and Necsa CEO Loyiso Tyabashe
Steenkampskraal, Mintek achieve breakthrough in rare earth beneficiation
24th June 2026 By: Sabrina Jardim

Steenkampskraal Monazite Mine (SMM) and Mintek, South Africa’s national mineral research organisation, have announced the successful production of high-purity mixed rare earth products at Mintek’s... 


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