A new smelting technology developed by African Rainbow Minerals could mark a turning point for South Africa’s ferroalloy sector. Analysts suggest the innovation has the potential to reshape the economics of chrome and manganese beneficiation.
Verbatim
Andre Joubert, ARM Ferrous CE:
“We’re engaging with various partners … to commercialise this technology, which saves more than 70% of electricity consumption … and it also reduces your carbon emissions by about 60% and it puts you on the bottom of the cost curve.” Emphasising cost and emissions benefits
“We’ve made fantastic progress … This is something that can revitalise all the dormant plants that we’ve closed over many years in South Africa.” Expressing the potential to restart mothballed smelters
Dr Patrice Motsepe, ARM Executive Chairperson:
“SmeltDirect is intended to reduce expenses and allow the utilization of low‑grade materials, opening the door to reviving dormant smelters.” Underscoring the strategic intent behind the technology, with a focus on cost and beneficiation potential.
In brief
SmeltDirect dramatically reduces energy costs and emissions: The technology addresses one of the biggest structural challenges in ferroalloy production in South Africa by lowering electricity usage and carbon footprint, which could restore competitiveness to local smelters.
Potential to revive beneficiation and local value creation: By making ferroalloy production more economically viable, SmeltDirect could enable idled smelters to restart, support downstream processing, and promote industrialisation, job creation, and economic diversification in South Africa.
Strategic and environmental significance for the industry: The technology positions South Africa to compete more effectively globally while producing lower-carbon alloys, aligning with global decarbonisation trends and enhancing ARM’s long-term strategic innovation in the ferroalloy sector.
A new smelting technology developed by African Rainbow Minerals could mark a turning point for South Africa’s ferroalloy sector, with analysts suggesting the innovation has the potential to reshape the economics of chrome and manganese beneficiation.
During Q & A following the company’s latest financial results presentation last week, Phoenix Research analyst David Roche-Kelly described the company’s SmeltDirect technology as a major technological breakthrough. “SmeltDirect technology is a huge achievement, a giant leap forward,” Roche-Kelly said during the discussion with management. His remarks come as ARM continues to highlight the technology as one of its most important long-term strategic developments, particularly as South Africa grapples with the challenge of restoring competitiveness in its ferroalloy industry.
Addressing the energy challenge in smelting
Traditional ferroalloy smelting is among the most electricity-intensive processes in the mining value chain. For years, rising power tariffs and supply instability have eroded the competitiveness of South African smelters, leading to the closure or curtailment of several operations. As a result, the country, despite holding some of the world’s largest chrome resources, has increasingly shifted toward exporting raw chrome ore rather than beneficiated ferrochrome. SmeltDirect aims to change that equation.
The process is designed to significantly reduce the amount of electricity required to produce ferroalloys, while also lowering emissions and improving processing efficiency. By reducing the energy intensity of smelting, the technology could enable local producers to operate more competitively against international producers, particularly in markets such as China where lower power costs have historically given smelters a structural advantage.
Potential to revive beneficiation
For policymakers and industry leaders, the implications extend well beyond cost reductions. South Africa’s mining policy framework has long emphasised beneficiation, the processing of raw minerals into higher-value products, as a pathway to industrialisation, job creation and economic diversification. However, the high cost of electricity has made large-scale ferroalloy production increasingly difficult to sustain. Technologies such as SmeltDirect could help change that dynamic by enabling the production of ferroalloys using significantly less power, potentially allowing idled smelters to return to operation and encouraging new investment in downstream processing capacity. If successfully commercialised at scale, the technology could support renewed beneficiation of both chrome and manganese resources, minerals in which South Africa holds globally significant reserves.
Lower-carbon metals production
Another key advantage highlighted by analysts is the technology’s potential to reduce the carbon footprint of ferroalloy production. As global steelmakers face growing pressure to decarbonise their supply chains, demand is rising for lower-carbon raw materials and intermediate products. SmeltDirect’s ability to reduce energy consumption could translate into lower greenhouse gas emissions per ton of alloy produced, potentially positioning South African ferroalloys more favourably in markets that are increasingly sensitive to carbon intensity. This dynamic is expected to become more significant as regulatory mechanisms such as carbon border adjustment policies begin influencing international trade in industrial materials.
Strategic significance for ARM
For Patrice Motsepe-founded African Rainbow Minerals, the development of SmeltDirect represents a major investment in innovation within the ferroalloy value chain. The company has previously indicated that the technology could be applied across several alloy systems, including ferrochrome and ferromanganese, both key inputs in global steel production. Industry analysts say this flexibility could broaden the commercial potential of the process if it proves viable at industrial scale.
A potential inflection point
Roche-Kelly’s comments underscore growing industry interest in whether the technology could help reverse the long-term decline of South Africa’s ferroalloy sector. Over the past decade, the country has steadily lost market share in beneficiated alloys as smelters struggled with rising electricity prices and operational disruptions.
If SmeltDirect can deliver the efficiency gains that ARM believes it can, analysts suggest it could represent a rare example of a technological innovation capable of restoring competitiveness to a sector that remains strategically important for the country’s mining economy.
For now, the industry will be watching closely as ARM continues to advance the technology, with many hoping it could mark the beginning of a new chapter for value-added minerals processing in South Africa.
Article source: https://miningindaba.com/articles/smeltdirect-technology-a-giant-leap-forward-f
