South Africa mines more chrome ore than any country on earth, and in 2026 the industry has split cleanly in two. Mines and exporters are running hard. The ferrochrome smelters that once processed the ore locally, most of them built in the Xstrata era, are down to 11 working furnaces out of 66. One number explains the whole divide: electricity is roughly 52 percent of the cost of making ferrochrome, and Eskom’s tariff trajectory took South African furnaces from the world’s cheapest converters to among its most expensive.
Where is chrome mined in South Africa?
On the Bushveld Complex, in two main belts: the western limb around Rustenburg and Brits, and the eastern limb around Steelpoort and Burgersfort. Two ore sources matter and they behave differently. Dedicated chrome mines work the LG6 and MG seams directly. Platinum producers recover chrome from UG2 reef tailings as a by-product, at very low marginal cost, which is why UG2 material keeps flowing onto the market even when standalone chrome margins thin: for a platinum mine, any chrome price is nearly free money. Samancor Chrome and the Glencore-Merafe venture anchor the standalone side. Tharisa runs the integrated model, co-producing PGMs and chrome from one open pit, which hedges it against either price alone.
What exactly happened to the smelters?
The arithmetic stopped working, furnace by furnace. Glencore-Merafe’s Lion smelter, the newest and most efficient, breaks even around 87 South African cents per kilowatt hour. The older Boshoek and Wonderkop plants need roughly 62 cents. Eskom’s average industrial tariff has multiplied several times over since 2008 and now sits well above both thresholds. The consequence, in sequence: Glencore-Merafe’s attributable ferrochrome output fell 28 percent to 433,000 tonnes in the first half of 2025, Wonderkop and Boeshoek were idled, and retrenchments began for about 2,425 direct jobs, with Solidarity counting more than 17,000 affected indirectly. The read: these are tariff casualties, not ore-body or demand casualties, which is why the fix being negotiated is a tariff, not a subsidy.
Can the Eskom deal save smelting?
It has a number and a deadline, which makes it testable. The memorandum Glencore Ferroalloys signed with Eskom targets a workable rate by 28 February 2026, built around roughly 62 cents per kilowatt hour for Samancor and Glencore-Merafe, exactly the Boshoek and Wonderkop break-even. Two things to watch: whether the final rate lands at or under 62 cents, and whether it comes with volume or uptime conditions that idle furnaces cannot meet. A cold furnace also is not a light switch. Relining and rehiring take months, so even a good deal produces a slow restart. If the deal misses, expect the remaining 11 furnaces to shrink further and the ore to ship raw.
Who captures the value now?
China, and the South African mine gate. With local conversion shrinking, South African ore increasingly feeds Chinese furnaces, which now produce the majority of the world’s ferrochrome from imported rock. That reverses the historic structure in which South Africa smelted its own ore, and it shows in the trade data as record ore export volumes through Richards Bay and Maputo alongside falling ferrochrome exports. For the mines this is survivable: ore margins are thinner than alloy margins but real, and UG2 by-product producers profit at almost any price. For the country it means the beneficiation jobs and the electricity demand both migrate to China. That tension is exactly why government is at the table on the tariff.
What this means for suppliers
Sell to the ore chain, price the smelter chain as an option. The reliable spending sits at mining and logistics: crushing and screening, spiral and dense-media plants that upgrade UG2 and LG6 material, road-to-rail loadout, and port handling, all scaled to record export volumes. Smelter-side procurement is frozen until the tariff decision. If the 62-cent deal lands, the Wonderkop and Boeshoek restarts become a concentrated burst of reline, refractory and electrical work worth positioning for in advance. AMIQ tracks 2,200+ African mining projects with verified owner and engineer contacts, the chrome belt included. Join at AMIQ, and see chrome mining in South Africa and chrome mining companies for the operation-level picture.
Frequently asked questions
Is South Africa the biggest chrome producer?
Yes, the world’s largest producer and exporter of chrome ore, from the Bushveld Complex’s LG6, MG and UG2 sources. Most of the ore is now smelted into ferrochrome in China rather than locally.
Why did South Africa’s ferrochrome smelters close?
Electricity, which is about 52 percent of production cost. Older smelters need roughly 62 cents per kilowatt hour to break even and Eskom’s tariffs sit well above that, so by early 2026 only about 11 of 66 furnaces still ran.
Who are the biggest chrome producers in South Africa?
Samancor Chrome and the Glencore-Merafe Chrome Venture on the standalone side, Tharisa with its integrated chrome-and-PGM pit, plus substantial UG2 by-product output from the platinum industry.
