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Original research · Public data· US · India · South Africa

Two smelters closed.
Here is what it did to the market.

In 2025 a significant share of South African ferromanganese capacity was permanently withdrawn. For importers who depended on it, a supply source simply stopped existing. This analysis maps the gap that opened, who was positioned to fill it, and what the cost difference was worth per tonne — built entirely from public trade records.

Built for: Published as a methodology demonstration. No client data was used.

The findings

What the trade record
actually showed.

290
Shipments removed
SA supply to a single US importer
124
Replacement exporters mapped
India, with 54 already US-active
$874
Indian FOB per tonne
vs ~$1,200 SA landed cost
$210
Saving per tonne, upper bound
$110–$210 depending on lane
All figures derived from public trade and shipment records. Prices and volumes reflect the period analysed and move with the market.

What happened

Two events in 2025 removed a substantial share of South African ferromanganese from the export market. Assmang permanently closed the Cato Ridge smelter in May. In December, Transalloys cut production to approximately 40% of capacity.

For the market as a whole this registered as a supply story. For individual importers who had been buying South African material for years, it was something much more specific: a supplier relationship that could not be renewed at any price.

Reading the gap in the record

Shipment-level trade records show which company received what product, from which origin, how often, and over what period. That makes a disappearance visible.

One US ferroalloy importer illustrates the pattern clearly. Across the decade to 2026 the company had received more than 1,100 sea shipments, representing roughly $68 million in shipping spend. South Africa was its single largest ferromanganese origin, accounting for approximately 290 of those shipments.

After the closures, that origin was gone. Not more expensive — gone. The company had a structural requirement to replace it, and that requirement was legible in public data to anyone who thought to look.

Who could actually fill it

The obvious replacement origin is India. But "India exports ferromanganese" is not commercially useful on its own. The question a supplier or a buyer needs answered is narrower: which specific exporters can serve this route, at this volume, with this documentation history?

We mapped 124 Indian ferroalloy exporters. Of those, 54 were already shipping into the United States — meaning they had proven route capability, existing customs history and demonstrated compliance experience. That distinction matters. An exporter already serving a market is a materially lower-risk counterparty than one who has never shipped there.

Of the mapped exporters, 72 had directly reachable commercial contacts. That is the difference between a market observation and an actionable commercial list.

What it was worth

At the time of analysis, Indian high-carbon ferromanganese was trading at approximately $874 per tonne FOB. The South African material it replaced had a landed cost of roughly $1,200 per tonne.

Freight, handling and duty consume part of that spread, and the exact figure varies by lane and volume. Net, the analysis put the saving at approximately $110 to $210 per tonne.

For a buyer importing at scale, that is not a marginal improvement. It is a change to cost of goods significant enough to affect competitive position downstream.

Why we published this

Every figure above came from public trade records, company registries and published industry announcements. No client data was involved, and no confidential information appears anywhere in it. That was deliberate.

Most companies selling commercial intelligence describe their methodology in the abstract. We would rather show it working. This analysis took public information that anyone could access and turned it into a specific, quantified commercial opportunity — which is precisely what we do for clients, on their products and in their markets.

The specific numbers here will age. Prices move, capacity returns, trade routes reconfigure. The method does not.

What this does not tell you

An identified opportunity is not a transaction. Whether a supplier actually wins that business depends on price, quality, lead time, payment terms, relationship and execution — none of which appear in a trade record.

What the data does is answer the questions that come first: who has a genuine requirement, why now, what is it worth, and who is realistically positioned to serve it. Those answers are what turn a sales effort from a numbers game into a targeted commercial approach.

Analysis FAQ

The questions
this raises.

What happened to South African ferromanganese supply?
Two events removed a large share of South African ferromanganese capacity from the export market. Assmang permanently closed the Cato Ridge smelter in May 2025, and Transalloys reduced output to approximately 40% of capacity in December 2025. For US importers who had relied on South African material, this was not a price movement — it was the permanent removal of a supply source.
Who replaced South African ferromanganese in the US market?
India is the most significant replacement origin. Our analysis identified 124 Indian ferroalloy exporters, of which 54 were already shipping into the United States and therefore had proven route capability, documentation and customs history. That existing-supplier group is commercially very different from an exporter who has never shipped to the US.
What is the landed-cost difference between Indian and South African ferromanganese?
At the time of analysis, Indian high-carbon ferromanganese was priced at approximately $874 per tonne FOB, against a previous South African landed cost of roughly $1,200 per tonne. After freight and handling, the net difference worked out to a saving of approximately $110 to $210 per tonne depending on lane and volume. For a buyer importing at scale, that is a material change to cost of goods.
How do you find out which companies lost a supplier?
Shipment-level trade records show which company received what product, from which origin, at what frequency, over time. When a known origin stops appearing in a specific importer’s record after a known closure event, the gap is visible in the data. The analysis is a matter of reading the record carefully rather than accessing anything private — every figure in this study came from public trade data.
Is this data public?
Yes. Every figure in this analysis was derived from publicly available trade and shipment records, company registries and published industry announcements. No client information, confidential data or privileged access was involved. That is deliberate — it demonstrates the method without exposing anything belonging to a client.
Can you do this for our product and market?
If your product moves across borders and is customs-classified, the same approach applies. The specific evidence sources vary by product, market and jurisdiction, and for domestic or services businesses we use different demand signals entirely — but the method is the same: find evidence of real buying activity, work out where you can profitably compete, and approach with a specific commercial reason.
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