Chinese-owned South Mining Pvt. Ltd. has invested US$800,000 in a state-of-the-art coal wash plant in Hwange, Matabeleland North, as part of its strategy to boost high-value coking coal output and support Zimbabwe’s mineral beneficiation agenda, Mining Zimbabwe can report.
By Rudairo Mapuranga
The facility, designed for continuous operation, represents critical beneficiation infrastructure. It enables South Mining to produce premium-grade coking coal while also generating saleable by-products for secondary industries.
A coal wash plant—also known as a coal preparation plant (CPP)—plays a pivotal role in coal beneficiation. Using mechanical and gravimetric processes, the plant separates coal from waste rock, shale, and other impurities. Raw coal is fed into the system and processed through crushers, screens, cyclones, and flotation cells, with material classified according to size and density.
The process improves coal quality by reducing ash content and enhancing calorific value. For South Mining, it upgrades run-of-mine (ROM) coal into coking coal suitable for metallurgical use, especially in coke production for steel manufacturing.
Project Manager Donald Nkosana stressed that beneficiation is now indispensable in coal markets.
“For whatever use of coal, you need to pass it through the wash plant,” Nkosana explained. “Coking coal plants, foundries, and even certain energy facilities demand processed coal with specific parameters. This investment positions us to meet those quality requirements consistently.”
The new plant enables South Mining to produce an average of 45,000 tonnes of coking coal monthly. Operating 24 hours a day in multiple shifts, it is calibrated to process varying grades of raw coal sourced from Hwange’s coalfields.
Beyond premium coking coal, the facility also yields by-products such as middlings and fine coal slurry, which can be used in power generation and cement manufacturing. This integrated output model reduces waste while maximizing the value of every tonne mined.
The commissioning aligns with Zimbabwe’s push for mineral value addition under President Emmerson Mnangagwa’s Vision 2030 of achieving upper-middle-income status. The government’s beneficiation policy encourages producers to invest in downstream processing that enhances economic returns, creates jobs, and reduces import dependence.
Coking coal beneficiation is of strategic importance, particularly for the steel sector. Coke is indispensable in blast furnace operations, where it acts as a reductant in iron ore smelting. A reliable domestic supply reduces Zimbabwe’s reliance on imports, strengthens its steel value chain, and allows the country to benefit from regional demand.
Nkosana noted that the company’s decision was partly inspired by the Presidential Investment Initiative launched three years ago, which has spurred several large-scale mining and energy projects.
Looking ahead, South Mining plans further upgrades, including automation of plant processes, water recycling systems, and dust suppression technology to minimize environmental impact. Additional beneficiation modules are also under consideration to produce specialized coal products for diverse industrial markets.
“We are still in the optimization phase,” Nkosana said. “The first stage is stabilizing throughput and calibrating output to meet specifications. Beyond that, we are committed to continuous improvement, with technology investment at the core of our approach.”
Hwange remains the heartbeat of Zimbabwe’s coal industry, with multiple producers engaged in both thermal and coking coal. South Mining’s new wash plant adds to the region’s growing beneficiation capacity, complementing power generation projects and steelmaking investments such as the Dinson Iron and Steel Company (DISCO) plant in Manhize.
By supplying beneficiated coking coal, South Mining enhances Zimbabwe’s self-sufficiency in critical industrial inputs, reduces foreign currency outflows, and taps into regional markets in Zambia, the DRC, and South Africa.
Although coal faces global scrutiny under the energy transition, Zimbabwe continues to rely on it for base-load power while leveraging coking coal to drive industrial growth. South Mining has therefore adopted a dual approach—boosting productivity while implementing sustainable practices, including:
Water recycling systems to reduce freshwater use.
Ash management strategies to curb environmental degradation.
Energy-efficient beneficiation equipment to lower emissions.
These measures ensure coal beneficiation remains aligned with Zimbabwe’s Just Energy Transition framework, which promotes a balanced shift to renewables while safeguarding industrial competitiveness
