Origins — Southern Africa
The reserves are not the constraint.
South Africa holds three globally dominant reserve positions at once. What decides whether any of it ships is electricity and rail, and that has been true for a decade.
- World PGM reserves
- Bushveld dominant
- Kalahari manganese resources
- About 80%
- World chrome reserves
- Clear majority
- The binding constraint
- Power and rail
Overview
Geology in abundance, infrastructure in deficit.
No other country concentrates three globally dominant reserve positions the way South Africa does. The Bushveld Complex holds the dominant share of world platinum, palladium and rhodium and most of the chrome; the Kalahari Manganese Field holds roughly four fifths of world manganese resources. The geology is not the problem here.
The constraint is infrastructure. Grid load-shedding and the deterioration of the rail network to Richards Bay and Saldanha have cost more export tonnes over the past decade than any orebody has. Coal that cannot rail moves by road at a cost that consumes the margin, and a producer's rail allocation is worth as much as its stockpile.
Platinum group metals are sold as a basket rather than as a metal. A mine's revenue is a weighted combination of platinum, palladium, rhodium, gold, iridium and ruthenium, and rhodium — a market small enough to move on a single plant outage — can dominate the arithmetic in a way its volume never suggests.
Zambia is the other half of the Central African Copperbelt. Its ore is geologically continuous with the Congolese deposits and it moves on the same corridors, through the same border posts, with a different fiscal regime on top.
Metals desk
PGM, priced as a basket rather than a metal.
Three reef types with different economics. Merensky is the historic high-grade horizon and is largely depleted in the older shafts; UG2 is chromitite-hosted, harder to process and richer in rhodium; Platreef on the Northern Limb is thick enough to mine mechanically rather than by hand-held drilling, which is why the newest capital went there.
Demand is autocatalysts before anything else, and it is not stable in composition. When palladium ran to a multiple of platinum, manufacturers engineered platinum back into petrol catalysts, and that substitution is a permanent structural feature now rather than a cyclical one. Recycled metal from scrapped catalysts is the swing supply nobody controls.
Zimbabwe's Great Dyke sits in the same geological story with a different country risk attached, and it is the only other meaningful primary PGM source outside Russia.
Metals desk →| Operation | Reef | Owner and character |
|---|---|---|
| Mogalakwena | Platreef, Northern Limb | Anglo American Platinum — the largest open-pit PGM operation in the world |
| Rustenburg and Marikana | Merensky and UG2 | Sibanye-Stillwater, Western Limb |
| Impala Rustenburg | Merensky and UG2 | Implats — deep, labour-intensive, high cost |
| Two Rivers and Modikwa | UG2 | Eastern Limb — rhodium-rich |
| Zondereinde and Booysendal | Merensky and UG2 | Northam Platinum |
| Zimplats, Unki and Mimosa | Great Dyke | Implats, Anglo and Sibanye — Zimbabwe, the other primary source |
Minerals desk
Chrome and manganese, and where the value went.
South Africa holds the chrome and it used to hold the ferrochrome smelting too. Electricity tariffs and load-shedding moved that value offshore: the country now exports ore to Chinese smelters and imports the alloy logic back in the price of stainless steel. Export tax proposals aimed at reversing it have been debated for years without settling.
Much of the chrome comes out of the UG2 reef as a by-product of PGM processing, which means chrome supply is partly a function of platinum economics rather than of chrome demand — a coupling that catches out anyone modelling the two separately.
The Kalahari Manganese Field is the largest manganese resource on earth by a wide margin, and two operations dominate it. Ore grades at 36 to 48% manganese, and the freight from a landlocked field to Port Elizabeth or Saldanha is a material share of the delivered cost.
Minerals desk →| Operation | Product | Owner and note |
|---|---|---|
| Mamatwan and Wessels | 36 – 48% Mn | South32 Hotazel, Kalahari field — the dominant operations |
| Tshipi Borwa | Manganese ore | Kalahari field — among the largest single manganese mines |
| UG2 chrome | 40 – 44% Cr₂O₃ | By-product of Bushveld PGM processing — supply coupled to platinum economics |
| Samancor and Glencore-Merafe | Ferrochrome | Smelting capacity constrained by power tariffs and load-shedding |
| Assmang | Manganese and chrome | African Rainbow Minerals and Assore |
Metals desk
The Zambian copperbelt.
Zambia has the smelting the DRC largely lacks, so its copper leaves as cathode and blister rather than as concentrate, and it takes Congolese concentrate across the border for treatment as well. That makes Zambia a processing jurisdiction as much as a mining one.
The recurring commercial problem has been fiscal rather than geological. Mineral royalty deductibility, VAT refund arrears running to years, and changes to the tax regime mid-project have repeatedly changed the economics of operations here, and a producer's working capital position is a genuine supply risk.
The corridors matter as much as the mines. Copper moves to Durban, Beira, Dar es Salaam, Walvis Bay and now Lobito, and the choice between them is a transit time and bond cost calculation rather than a distance one.
Metals desk →| Operation | Product | Owner and note |
|---|---|---|
| Kansanshi | Cathode and concentrate | First Quantum, North-Western Province — with an on-site smelter |
| Sentinel (Kalumbila) | Concentrate | First Quantum — large-scale, lower grade |
| Lumwana | Concentrate | Barrick — expansion underway |
| Mopani | Cathode and blister | IRH with ZCCM-IH — smelter at Mufulira treating third-party concentrate |
| Konkola | Cathode | Vedanta with ZCCM-IH — long-running ownership dispute now settled |
Energy desk
Coal, iron ore and the deepest mines in the world.
Richards Bay thermal coal at 5,500 to 6,000 kcal/kg NAR was built for the European market and now goes overwhelmingly to India and other Asian buyers. The export volume has been limited by rail performance rather than by mine capacity for several years running, and that is the single most important fact about South African coal.
Sishen and Kolomela rail to Saldanha on a dedicated ore line, which works better than the coal line and is the reason iron ore exports have held up where coal's have not.
South African gold is a declining, high-cost story mined at extraordinary depth. Mponeng is the deepest mine on earth, and the industry's output has fallen for decades against a rising cost base. It is included here for completeness rather than as a growth position.
Energy desk →| Operation | Product | Owner and note |
|---|---|---|
| Grootegeluk | Thermal and semi-soft coking | Exxaro, Waterberg |
| Mpumalanga complexes | 5,500 – 6,000 kcal/kg NAR | Thungela, Glencore, Seriti — railed to Richards Bay |
| Sishen and Kolomela | Iron ore, 64% Fe | Kumba and Anglo American, Northern Cape — railed to Saldanha |
| Mponeng | Gold | Harmony — the deepest mine in the world |
| South Deep | Gold | Gold Fields — mechanised, and one of the largest remaining reserves |
| Venetia, Jwaneng and Orapa | Diamonds | De Beers and Debswana — Jwaneng is the richest diamond mine by value |
Regulation
What decides whether the tonnes reach the quay.
The diligence here is less about the orebody than about power, rail allocation, ownership structure and a fiscal regime that has moved mid-project. These are checked on a seller before a term position is taken.
- 01South Africa — ownership and the mining charter
- Prescribed historically disadvantaged ownership levels apply to mining rights, and whether a company stays compliant after an empowerment partner sells has been litigated rather than settled. Ownership structure is verified at onboarding, not assumed from a company's own statement.
- 02South Africa — power availability
- Grid load-shedding is scheduled and recurrent. Production interruption from it is a planning input, and contracts are written so that a foreseeable, published constraint cannot be claimed as force majeure.
- 03South Africa — rail and port allocation
- Capacity to Richards Bay and Saldanha is allocated and has under-delivered against nominal capacity for years. A seller's rail slot is checked before laycan, because tonnes at the mine gate with no path to the quay are not tonnes.
- 04South Africa — chrome ore export policy
- Export taxes on chrome ore have been repeatedly proposed to protect domestic ferrochrome smelting. A term position in ore rather than alloy carries that policy risk, and it is written into the contract rather than hoped away.
- 05Zambia — fiscal stability and VAT
- Mineral royalty deductibility and VAT refund arrears have changed the delivered economics of Zambian operations more than once. A producer's outstanding refund position is treated as a supply reliability question.
- 06Corridor selection
- Durban, Beira, Dar es Salaam, Walvis Bay and Lobito each carry different transit times, bond requirements and congestion profiles. The corridor is chosen at contract and the alternative is priced, because the first choice fails often enough to matter.
Execution
Rail, power and the corridors.
- Rail slots to Richards Bay and Saldanha verified with the seller before laycan is agreed
- Load-shedding schedules built into loading and processing rate assumptions rather than treated as an interruption
- Road haulage fallback costed at the time of contract, because rail underperformance is the base case rather than the exception
- Manganese and chrome ore sampled and analysed at load with the umpire laboratory named in the contract
- Corridor and border formalities for Zambian metal planned on transit time and bond cost rather than distance
- Independent draft survey at load and discharge on all bulk cargoes
Origination
Southern African producers and corridor operators can reach the metals and minerals desks through our Dubai trading office.