CBMM's Cousin: How Brazilian Niobium Experience Shapes Rare Earth Strategy

Brazil produces roughly 93 percent of the world's niobium from a single

industrial operator — CBMM in Araxá. That half-century of dominance in a

critical industrial metal is not an accident; it is the product of

deliberate strategic integration that offers a working template for

Brazilian rare-earth ambition.¹

The Niobium Template

The USGS's 2026 Mineral Commodity Summaries records Brazilian niobium

production at approximately 104,000 tonnes of contained niobium in both

2024 and 2025 — roughly 93 percent of global output.¹ Canada, the only

other meaningful producer, sits at approximately 6,000 tonnes in 2025.

No other country produces niobium in commercial quantities.

This level of concentration is unusual in global commodity markets. What

is more unusual is how long it has persisted. CBMM (Companhia Brasileira

de Metalurgia e Mineração) has been the dominant global niobium supplier

since the 1960s, and the global industry has adjusted to Brazilian

primacy as a structural feature. Steelmakers, superalloy producers and

aerospace customers build their supply chains around CBMM's reliability,

and the Brazilian regulatory and tax framework has evolved to support

the company's long-horizon investment planning.

How CBMM Built the Position

CBMM's dominance rests on four interlocking factors. The geological

endowment at Araxá is exceptional — a large, high-grade pyrochlore

resource in a carbonatite complex, with long remaining mine life at any

plausible production rate. The integrated operation combines mining,

beneficiation, pyrometallurgy and downstream metal-making in a single

site, which captures value that would otherwise flow to separate

processors. The workforce has deepened across generations, giving the

company specialised technical capability that competitors struggle to

match. And the company has consistently invested in research and

development, particularly in new niobium applications that expand demand

and reinforce CBMM's pricing position.

The commercial model is also distinctive. CBMM has for decades pursued

strategic equity partnerships with customers in key markets — Japanese

steelmakers, Korean and Chinese consortia — that combine long-term

offtake commitments with technology and capital engagement. That model

has helped CBMM maintain high capacity utilisation through demand cycles

that would have forced smaller producers into aggressive price

competition.

The Integration Model

The deepest lesson from CBMM's story is about integration. By operating

across the full value chain from ore to ferroniobium and niobium metal,

CBMM has captured processing margins that would otherwise have flowed to

refiners and metal-makers outside Brazil. That integration has also kept

the company's customer relationships direct — CBMM sells to steel plants

and superalloy producers, not to intermediate traders — which provides

demand-side intelligence that informs long-range planning.

For rare earths, the opportunity to replicate that model is now visible.

Serra Verde's mixed concentrate is currently sold into international

separation markets rather than being separated in Brazil, and the margin

on that concentrate flows to the downstream operators. The Viridis-Ionic

refining hub at Poços de Caldas is the first serious Brazilian

initiative to capture the separation margin domestically, and if it

succeeds it will represent the early stages of the kind of integration

that CBMM built over decades.

The next step beyond separation is metal-making, alloying and

magnet-forming. MP Materials' 10X facility in the United States is

currently the most visible non-Chinese player at the magnet-forming end

of the chain, but there is no structural reason why a Brazilian operator

could not eventually build comparable capability — particularly if the

upstream concentrate is Brazilian and the demand-side end-markets

include Brazilian wind-turbine and EV manufacturing.

Applying the Lessons to Rare Earths

Three specific lessons from CBMM apply directly to Brazilian rare-earth

strategy. First, long-horizon investment matters. CBMM has invested

consistently across decades, and rare-earth projects need similar

patient capital. The DFC's US$465 million commitment to Serra Verde fits

this model and is explicitly designed for multi-year deployment rather

than short-term IRR optimisation.

Second, customer partnerships matter. CBMM's strategic-equity

relationships with Japanese, Korean and Chinese customers created stable

demand and shared technology development. Brazilian rare-earth producers

can pursue the same model with Western automakers, wind-turbine

manufacturers and defence primes — and the 2025 pattern of

offtake-and-equity discussions suggests that this is already happening.

Third, integration matters. A producer that controls mining, separation,

metal-making and ideally magnet-forming captures dramatically more value

per tonne than a concentrate exporter. Brazilian rare-earth strategy

should not stop at upstream production; Poços de Caldas and further

downstream investment are what will determine how much of the value

chain stays in the country.

Differences That Matter

The niobium template does not apply uniformly. Niobium is a small market

— only about 112,000 tonnes per year globally — and a single operator

can sustain dominance. The rare-earth market is larger and more

geographically distributed, which means that even the most successful

Brazilian operator will never have CBMM-level global share.

The rare-earth product mix is also more heterogeneous. CBMM sells

essentially one commodity (ferroniobium) to one industry (steel). A

rare-earth producer sells seventeen different elements into multiple

end-markets with different price dynamics, which requires more diverse

customer relationships and more complex commercial management. Brazilian

rare-earth companies will need to develop commercial capabilities that

are broader, if not always deeper, than CBMM's.

Finally, geopolitical sensitivity differs. Niobium is rarely

politicised; rare earths sit at the centre of U.S.-China trade tensions

and European supply-security debates. Brazilian rare-earth producers

operate in a more politically sensitive environment, which is both an

opportunity (access to strategic financing) and a constraint (higher

visibility for any stumble).

Outlook

CBMM is the most successful long-duration Brazilian mining company, and

its playbook offers genuine guidance for the rare-earth industry taking

shape alongside it. Integration, patient capital, strategic

partnerships, continuous R&D — all of these are transferable lessons.

Brazilian rare-earth producers who follow them will capture more of the

value chain and build more durable competitive positions. Those who

treat rare earths as a short-cycle commodity opportunity will miss what

the CBMM experience most directly teaches: that mineral-industry success

is cumulative, and the return

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