Company: ArcelorMittal South Africa
Country: South Africa
Sector: Steel
CEO: Kobus Verster (Chief Executive Officer)
Website: Not publicly listed
Careers Page: Not publicly listed
LinkedIn: Not publicly listed
Email: Not publicly listed
Headquarters: Vanderbijlpark, Gauteng, South Africa
Founded: 1928 (as Iscor); renamed ArcelorMittal South Africa in 2007
Valuation/Revenue: $1.681bn revenue (African Business Top 250, 2025 ranking, rank 93)
ArcelorMittal South Africa (AMSA) is South Africa’s largest producer of primary steel, tracing its roots back nearly a century to the state-founded Iron and Steel Corporation (Iscor). It is majority-owned by global steelmaker ArcelorMittal and listed on the Johannesburg Stock Exchange, but 2025 brought a landmark contraction of its business when it ended production of long steel products, a decision that reshaped the company and South Africa’s domestic steel supply chain.
What Does ArcelorMittal South Africa Do?
AMSA manufactures flat and (historically) long steel products used across construction, automotive, mining, agriculture and general engineering in Southern Africa. Its flat steel operations, centred on its Vanderbijlpark works, produce hot-rolled, cold-rolled and coated steel coil supplying vehicle manufacturers, appliance makers, construction firms and steel merchants. For decades the company also produced long steel products — reinforcing bar, wire rod, sections and rail — mainly from its Newcastle and Vereeniging works, but this side of the business became the subject of years of restructuring speculation as costs mounted.
What Has ArcelorMittal South Africa Been in the News For Recently?
The company’s biggest recent story is the end of its long steel product manufacturing in 2025. AMSA had warned for several years that its Longs business was structurally unprofitable, citing chronically high logistics costs tied to failures at state freight-rail operator Transnet, expensive and unreliable electricity from Eskom, and competition from cheap imported steel. After multiple rounds of government engagement, business-rescue discussions and short-term reprieves aimed at saving jobs, AMSA proceeded with the wind-down, ending long steel output and leaving South Africa reliant on imports and remaining smaller producers for many of those products. The closure resulted in significant job losses at Newcastle and Vereeniging and was widely covered as a bellwether of the broader difficulties facing South African heavy industry amid logistics and energy constraints.
How Big Is ArcelorMittal South Africa?
African Business magazine’s Top 250 ranking for 2025 placed AMSA at number 93 by revenue, with turnover of roughly $1.68 billion. The company has for years been one of the JSE’s most closely watched industrial stocks precisely because its fortunes are seen as a proxy for the health of South Africa’s manufacturing and logistics environment; falling volumes, rand volatility and input-cost inflation have weighed on profitability even as revenue has stayed in the billion-dollar range.
Who Owns ArcelorMittal South Africa?
ArcelorMittal South Africa is majority owned by Luxembourg-headquartered ArcelorMittal, the world’s second-largest steelmaker, which holds a substantial controlling stake acquired through Mittal Steel’s takeover of the former Iscor’s private steel operations in the mid-2000s and the subsequent global Arcelor-Mittal merger. South Africa’s state-owned Industrial Development Corporation (IDC) also holds a shareholding, with the remainder in free float on the JSE under the ticker AMS.
Is ArcelorMittal South Africa Publicly Traded?
Yes. AMSA is listed on the Johannesburg Stock Exchange and reports interim and annual results in the ordinary course, though as a majority-controlled subsidiary of a much larger multinational, strategic decisions such as the 2025 Longs closure are made in close coordination with the global ArcelorMittal group.
How Old Is ArcelorMittal South Africa?
The business’s lineage stretches back to 1928, when Iscor was founded as a state steel producer. Iscor’s steel operations were privatised and later acquired by Mittal Steel in the mid-2000s; following Mittal Steel’s global merger with Arcelor in 2006-07, the South African business was renamed ArcelorMittal South Africa in 2007, giving the current corporate entity just under two decades under its present name atop nearly a century of operating history.
How Do I Contact ArcelorMittal South Africa?
No verified official website URL, careers page, LinkedIn company page or public contact email could be confirmed for AMSA specifically during this research; the global ArcelorMittal group maintains a corporate web presence, but a company-specific South African contact page was not verified.
How Does ArcelorMittal South Africa Compare to Its Competitors?
AMSA’s main domestic competitors have thinned out considerably over the past decade. Evraz Highveld Steel and Vanadium, once a significant South African long steel producer, closed and was liquidated in the mid-2010s after years of losses, while smaller mini-mill and specialist producers such as Scaw Metals and Cape Gate continue to compete in narrower product niches. With AMSA’s own exit from long steel in 2025, South Africa’s construction and reinforcing steel market has become increasingly reliant on imports, a dynamic that South African industry bodies and unions have repeatedly warned could leave the country exposed to price volatility and reduced strategic manufacturing capacity. On the flat steel side, AMSA continues to compete with imported coil and sheet, particularly from Asian producers, whose landed prices have periodically undercut local production despite import tariffs and safeguard measures imposed by South African trade authorities.
Links
Website: Not publicly listed
Careers Page: Not found
LinkedIn: Not found
Email: Not publicly listed
FAQ
Is ArcelorMittal South Africa still operating? Yes, but in a reduced form — it ended long steel product manufacturing in 2025 and now focuses on flat steel products.
Who owns ArcelorMittal South Africa? Global steelmaker ArcelorMittal holds the majority stake, with South Africa’s Industrial Development Corporation and public JSE shareholders holding the remainder.
Who is the CEO of ArcelorMittal South Africa? Kobus Verster has served as Chief Executive Officer.
Why did ArcelorMittal South Africa stop making long steel products? The company cited high logistics costs from Transnet rail failures, expensive electricity, and import competition as making the Longs business structurally unprofitable.
Is ArcelorMittal South Africa publicly traded? Yes, on the Johannesburg Stock Exchange under the ticker AMS.
How old is ArcelorMittal South Africa? Its roots go back to Iscor in 1928; it took its current name in 2007.