South Africa might not boast a Silicon Valley or AI unicorns, but it does have world-class mineral deposits — like the Merensky Reef — and a pool of junior mining companies trying to tap into them.
The problem? Local investors are often reluctant to back them. While US tech start-ups attract capital with ease, South African junior miners are largely ignored. The very term is used as pejorative by risk-averse corporates.
As a result, funding tends to come from state entities such as the Industrial Development Corp or through prepaid offtake deals where future output is sold upfront for cash. Equity capital? That’s usually raised abroad, in markets like the UK or Australia.
There are success stories that prove blanket scepticism isn’t warranted. One example is gold miner Pan African Resources, which listed on the JSE AltX in 2007. It transformed marginal assets into a R26bn market cap company and produced multibagger returns for early investors. Another is perennial market darling Afrimat, which listed in 2006 at R5 a share (admittedly as a construction and materials company back then). Now, even despite some headwinds, it is trading above R45.
In both cases, these former junior miners snapped up, at bargain prices, assets that the majors had written off as subscale or low-grade, and extracted value from them with disciplined management. Yes, they benefited from strong demand for commodities such as gold and iron ore, but they also played it smart by diversifying across multiple assets to manage risk. What’s more, they pulled this off despite listing during the overheated commodity and equity boom of 2006/2007.
Today’s market is a different story. With China’s property sector under pressure, the commodity cycle has cooled — removing the exuberance and adding a margin of safety for investors eyeing resource stocks, juniors included. Still, picking junior miners isn’t easy when blue-chip miners are trading at a discount.
Large caps offer safer exposure with less risk, making it harder to justify backing smaller, more fragile players. And in a weak commodity environment, tight liquidity hits juniors hardest — they’re more exposed, with fewer options to stay afloat.
It’s an especially bad idea to invest in juniors when the commodity they sell is experiencing a structural decline in demand, given the Darwinian survival dynamics that usually kick in.
Platinum group metals (PGMs), where 75% of demand (auto catalysts) is under threat from electric vehicles, is a good example. If you believe PGMs are set for a sustained rebound, a safer bet is a blue-chip player like Valterra (the old Anglo American Platinum). It trades at a modest earnings multiple and ranks among the lowest-cost producers in the sector. Whatever the market throws at it, Valterra is likely to be the last one standing.
Focusing on the rest of South Africa’s junior mining space — excluding PGMs and offshore assets — two commodities stand out: chrome and copper.
Driven largely by stainless steel manufacturing, chrome ore demand has been strong, pushing prices to record highs.
Chrome, often found alongside PGMs in the Bushveld Complex, has outgrown its status as a mere by-product. Though less valuable, it’s just as geologically scarce. South Africa leads the world in chrome production and exports, limiting foreign competition.
Driven largely by stainless steel manufacturing, chrome ore demand has been strong, pushing prices to record highs. While the market has had its share of boom-bust cycles, there’s no oversupply threat on the horizon. Stainless steel demand is expected to grow at 4%-6% annually, offering a solid base for continued price support.
There are two pure-play chrome stocks on the JSE: Merafe Resources and Mantengu Mining.
While Merafe’s sub-R4bn market cap technically puts it in the junior miner category, it could also be viewed as an operating division of mining giant Glencore, given its 20.5% shareholding in a joint venture with the latter — the bulk of operations. This means you get blue-chip management for the price of a junior miner.
The joint venture primarily earns revenue from ferrochrome smelting, the value-added product used in stainless steel. But when ferrochrome markets are soft, it has the flexibility to scale back smelting and ramp up chrome ore exports, cushioning earnings and preserving cash flow.
Electricity is one of Merafe’s biggest expenses, and surging Eskom tariffs — up 108% over the past five years — have steadily eroded its cost advantage over smelters in China and Indonesia. Even a negotiated pricing agreement from Eskom, designed to ease the burden on energy-intensive industries, hasn’t been enough. Merafe has had to shut down at least half of its ferrochrome furnaces.
The government has floated plans for deeper electricity discounts and a chrome export tax to support local beneficiation — measures that could strengthen Merafe’s position against foreign competitors. But for now, both remain vague promises with no concrete action.
Still, Merafe is better placed than pure chrome ore exporters if policy support materialises. Boasting a strong net cash balance and free cash flows, its trailing dividend yield of more than 20% at the time of writing is its biggest appeal.
While Merafe is the relatively safer bet and an attractive income play, Mantengu is the blue-sky but riskier option. Still in the early stages of development, it owns two chrome ore mines ramping up production, along with a recently acquired platinum asset that includes a million-ton tailings dump that is rich in chrome.
The recent rally in PGM prices opens the door for Mantengu to unlock value from PGM content in its ores too. But with chrome processing still being bedded down, that seems a longer-term prospect.
The biggest hurdle is capital. Mantengu’s equity funding facility is limited and, because of a weak share price, highly dilutive. If the stock doesn’t recover, and debt remains out of reach, a fresh equity raise may be the only option — despite the risk of further dilution.
On the operational side, Mantengu has installed additional processing plants, which should lift chrome output and help reduce unit costs — critical steps if it’s going to unlock value.
While chrome has largely flown under the radar, copper has not. The expected demand growth over the next decade and beyond, due to increased electricity use and the transition to low-carbon technologies, has been well publicised. Data centres, transport electrification, renewable energy production and power grid expansion are all playing a part. Worryingly, the world faces a looming copper supply deficit, driven by a shortage of new discoveries and the long timelines required to bring new mines into production.
The only two pure copper plays on the JSE, Copper 360 and Orion Minerals, are Northern Cape ventures that aim to take advantage of the metal’s strong fundamentals by reopening old copper mines previously operated by large mining houses such as Newmont and Gold Fields. These assets were abandoned at a time when low copper prices and reduced reserves made them subscale for blue-chip miners, but Copper 360 and Orion believe they can provide attractive returns for smaller operators.
Investors — including Shirley Hayes, the controlling shareholder — have been disappointed by management’s failure to meet aggressive production timelines.
Orion’s flagship project is the Prieska Copper Zinc Mine, previously mined from the 1970s to 1990s. While its other assets are smaller, they offer long-term exploration potential. One key advantage of reopening old mines is the availability of geophysical maps and existing infrastructure that shorten the lead time between development and output. That said, Prieska still needs to be dewatered before mining can begin in earnest — a process that could take up to three years.
Copper 360, boasting Coronation and Investec as material shareholders, has more near-term prospects. Underground operations at its Rietberg mine are already in full swing, with the activation of more nearby operations in due course to provide flexibility. Investors — including Shirley Hayes, the controlling shareholder — have been disappointed by management’s failure to meet aggressive production timelines. In response, Hayes brought in former Harmony Gold CEO Graham Briggs to help steady the ship.
With the market cap now under R1bn, a lot of scepticism is priced in. That low bar means any operational success could spark a sharp rebound in the share price.
Most junior miners can’t handle logistics in-house, so offtake agreements — where third parties buy their output and sell it to end users — are common. Copper 360 follows the same model. Under its current offtake deal, it receives 85% of the copper price within three days of delivery. The sale is recognised the moment the material leaves the mine gate, shifting logistical risks — such as Transnet delays — to the buyer, albeit at the loss of some margin.
Despite all the hype about a “copper rush” in the Northern Cape, some perspective is needed. Copper 360 and Orion each aim to produce 50,000t of copper a year, ambitious for juniors with market caps of about R1bn. But for a R900bn heavyweight like Glencore, it’s a drop in the bucket. These deposits are simply too small to attract the majors. Without interest from opportunistic mid-tier players, buyout offers are unlikely.
Lastly, there’s Jubilee Metals, which until recently was a triple threat with PGM and chrome interests in South Africa and emerging copper operations in Zambia. That changed with the company’s decision to sell its South African chrome and PGM assets for up to $90m, a move that signals a clear shift in strategic focus.
Historically, PGMs made up the lion’s share of Jubilee’s income, so it’s no surprise that profits took a hit during the downturn in PGM prices. While chrome output was strong, much of it was processed for third parties on low-margin contracts — a model Jubilee had been trying to improve by sourcing more of its own feedstock.
Now the company is going all-in on copper. Its Zambian assets hold richer deposits than those in South Africa’s Northern Cape, but the pivot doesn’t come without risks. Zambia offers real growth potential, but also exposure to the uncertainties of operating in a frontier market. With the PGM assets off the books, Jubilee’s short-term valuation will hinge squarely on its copper execution. And unless that pays off quickly, investors may stay cautious.
Picking winners among junior miners is tough. Execution risks are high, and there’s often little track record to go on. But if past success stories like Pan African Resources and Afrimat are any guide, the key ingredients are clear: strong management, an opportunistic strategy and diversification across multiple operations.
Copper 360 ranks well on the management front, with Jan Nelson, former CEO of Pan African Resources, and Briggs bringing proven track records. In junior mining, where leadership can make or break a project, that experience matters — especially at smaller operations where executives have an outsized impact. Still, it’s worth noting that even the best management team can’t overcome poor geology.
With a market cap of just R140m at the time of writing, Mantengu has the highest upside potential — if it can deliver on its vision of becoming a platform for undervalued, overlooked mining assets. Management has shown dealmaking skill and can rely on experienced operators, but it still needs to prove it can execute over the long haul — one reason for the market’s scepticism. Its biggest near-term risk? A lack of liquidity. Without adequate funding, even the best plans stall.
There are no guarantees. The smartest approach is a diversified portfolio of junior miners, with heavier weightings towards your top picks. If history is any judge, you could generate outsized returns even if just one turns out to be a gem.
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