Vedanta Zinc International has not yet decided to build a $1.5 billion zinc smelter at Gamsberg in South Africa, and says the decision depends on securing a competitive electricity price. Its chief executive told Miningmx the gap with the government is small.
At a glance
- Vedanta has said it needs power at about 60 cents a kilowatt-hour, against a figure of about 63 cents.
- Gamsberg's second phase has doubled concentrator capacity to 500,000 tonnes of zinc a year.
- Vedanta wants eventually to take Gamsberg to 1 million tonnes a year.
Background
Gamsberg, near Aggeneys in the Northern Cape, is one of the world's largest zinc deposits. Today it ships zinc concentrate abroad for smelting. Smelting zinc uses large amounts of electricity, which is why the power price decides whether a smelter in South Africa can compete.
What happened
Vedanta Zinc International chief executive Vijay Kumar told Miningmx on October 12 that the company had not yet decided to build a smelter at Gamsberg. Design work is under way. The smelter, estimated to cost about $1.5 billion, would start at 500,000 tonnes a year, with potential to double.
Vedanta has previously said it needs electricity at around 60 cents a kilowatt-hour to make the smelter competitive. Asked about the gap with a figure of around 63 cents, Kumar called them "small gaps". He said: "We can bridge that particular gap."
The mine expansion
Vedanta's immediate focus is ramping up Gamsberg's second phase, which doubled concentrator capacity to 500,000 tonnes of zinc a year. Kumar said it should reach that rate within the next two months. The phase cost "roughly 10 odd billion rands", against earlier estimates of around R7 billion. He blamed that partly on tighter safety and tailings rules.
A further 500,000-tonne concentrator would take Gamsberg towards 1 million tonnes a year. Kumar said the resource and reserve base has grown about ninefold over 15 years.
What it means
Kumar argued that South Africa should capture more value from Gamsberg's zinc by smelting it at home. He said preferential power tariffs had been extended to existing smelters and Vedanta expected similar treatment. "There is a general shortage of zinc concentrates," he added, which he said supports building more smelting capacity.
Our read
Outlook: neutral. The smelter is still undecided and years away, so it does not affect zinc supply today.
What to watch
- A power price agreement between Vedanta and the South African government.
- A final investment decision on the Gamsberg smelter.
- Gamsberg reaching its 500,000-tonne rate in the next two months.
For information only, not investment advice.
Zinc price in India
metalscost.com India reference price as of 2026-10-16.
Detailed analysis
Timeline
- 2026-10-12: Vedanta says the Gamsberg smelter decision hinges on the power price.
Supply Drivers
Gamsberg's second phase doubles zinc concentrate capacity to 500,000 tonnes a year.
Refinery Output
A Gamsberg smelter would add 500,000 tonnes a year of smelting capacity, potentially doubling later.
What could lift prices
- Kumar says the power-price gap with the government is small.
- Tight global zinc concentrate supply supports new smelting capacity.
What could weigh on prices
- No final investment decision has been taken.
- The second phase cost more than first estimated.
Country impact
| Country | Impact | Reason |
|---|---|---|
| South Africa | Medium | A $1.5 billion smelter would keep more of Gamsberg's zinc value at home. |
Industry impact
| Industry | Effect | Reason |
|---|---|---|
| Metal Smelting | Neutral | A large new zinc smelter is planned but undecided. |
Who gains, who loses
- Northern Cape economy: A smelter would add local processing and jobs if built.
Other ways this could play out
- If Vedanta secures a competitive power price, it could take a final investment decision.
- If not, Gamsberg's concentrate will keep going abroad for smelting.
Price risks
- Zinc prices and treatment charges affect smelter economics.
- South African electricity costs and supply remain uncertain.
Technical view
Price is trading below both its 20-period and 50-period moving averages, a bearish alignment.
Computed from metalscost.com's own stored price history.
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