The South African mining company map redrew itself more in the past two years than in the previous ten. Anglo American dismantled its historic structure, a new PGM champion listed in its own right, De Beers went up for sale, and the gold companies became cash machines nobody saw coming. If your mental model of who owns what dates from 2023, it is out of date. Here is the 2026 landscape, company by company.
Who are South Africa’s biggest mining companies?
By scale and weight in 2026: Valterra Platinum, Impala Platinum and Sibanye-Stillwater in PGMs, Harmony and Gold Fields in gold, Kumba Iron Ore and Exxaro in bulks, Glencore across coal and ferroalloys, plus Sasol’s captive coal business, African Rainbow Minerals, Northam and De Beers’ South African operations.
The great Anglo unbundling
The defining corporate event is Anglo American taking itself apart. Anglo American Platinum was demerged in May 2025 and renamed Valterra Platinum, a standalone JSE-listed company owning Mogalakwena, the world’s largest open-pit PGM mine, and posting R33.4 billion EBITDA in 2025. De Beers is being sold, with a consortium led by a former managing director selected as preferred bidder in July 2026 while its Venetia mine sits paused. Kumba Iron Ore stays with Anglo, roughly 70 percent held, through the pending Anglo-Teck merger. The strategic meaning: decisions about South African assets that were once made inside one London boardroom are now made in four separate ones, each with its own capital priorities, which changes everything from procurement to community programmes.
The PGM three
Valterra leads on assets, with Mogalakwena’s open-pit economics and about 3.2 million PGM ounces a year. Impala Platinum runs the biggest conventional complex, around 49,000 people at Rustenburg, produced 3.55 million ounces group-wide, and swung from near-breakeven to R9.3 billion half-year earnings as prices recovered, with its project pipeline detailed in our Implats analysis. Sibanye-Stillwater, the roll-up built from everyone else’s unloved assets, saw its SA PGM EBITDA more than double to R16.7 billion in 2025. Northam remains the disciplined fourth player that kept investing through the downturn. All four now share one strategic fact: recovered prices on structurally reduced supply, because the shafts closed in 2023-24 are not coming back.
Gold, iron and coal
Harmony transformed itself from marginal-mine specialist to owner of the world’s deepest, highest-grade operation at Mponeng, earning 4.07 billion dollars of revenue in its 2025 year at gold prices its founders never imagined. Gold Fields runs South Deep, the mechanised giant with 28 million ounces of reserves, alongside its international portfolio. Kumba earned R31.9 billion EBITDA at 46 percent margins on premium iron ore, betting R11.2 billion on beneficiation, as covered in the Kumba deep-dive. In coal, Exxaro (R41.8 billion revenue, Grootegeluk), Thungela, Seriti and Glencore divide a market where the export recovery and Eskom’s needs keep everyone busy, while Sasol mines about 28 million tonnes a year purely to feed Secunda. Glencore’s other South African story is grimmer: the ferrochrome venture with Merafe has mothballed most smelting, the endgame of a collapse traced in what happened to Xstrata.
The next tier, and who is actually growing
African Rainbow Minerals holds its diversified stakes across manganese, iron and PGMs. Petra Diamonds is fighting for survival with Finsch in business rescue. And the genuine growth stories are newer names: Ivanhoe’s Platreef ramping toward major PGM production in Limpopo, Orion Minerals restarting Northern Cape copper with Glencore backing, and the junior copper cluster around Springbok and Prieska. That shortlist being so short is the industry’s real strategic problem, and the reason exploration spending, down seven straight years, is the number to watch.
What this means for suppliers
Corporate change moves procurement. Valterra is building standalone supplier relationships where Anglo’s frameworks once ruled. De Beers’ new owners will re-examine everything. Recovered PGM and gold margins are reopening budgets that were frozen in 2024. Selling into this landscape means knowing not just the companies but which of their operations and projects is spending. AMIQ tracks 2,200+ African mining projects with verified owner and engineer contacts across every company named here. Join at AMIQ, and see mining companies in South Africa for the full directory.
Frequently asked questions
What happened to Anglo American in South Africa?
It restructured: Anglo American Platinum was demerged as Valterra Platinum in May 2025, De Beers is being sold with a preferred bidder chosen in July 2026, and Kumba Iron Ore remains in the group through the Anglo-Teck merger completing in 2026-27.
Who is the biggest platinum company in South Africa?
Valterra Platinum by refined output and asset quality, with about 3.2 million PGM ounces in 2025 and the Mogalakwena open pit. Impala Platinum runs the largest single mining complex, and Sibanye-Stillwater the broadest portfolio of operations.
Which gold companies still mine in South Africa?
Harmony, the largest domestic producer with Mponeng and Moab Khotsong, Gold Fields with South Deep, Sibanye-Stillwater with Driefontein and Kloof, and Pan African Resources among the mid-tier operators.
Are any new mining companies entering South Africa?
Selectively. Ivanhoe Mines is ramping Platreef in Limpopo, Orion Minerals is developing Prieska copper with Glencore funding, and Copper 360 is producing in the Northern Cape. The pipeline is thin because exploration spending has declined for seven consecutive years.
