Where does niobium come from?

Brazil's grip on niobium mining carries over to its customers. Brazil mined 93% of world niobium in 2025 (USGS MCS 2026). In 2024 it supplied 96% of China's ferroniobium imports, 97% of Japan's, 92% of South Korea's and 83% of the European Union's imports from outside the EU, all above the 65% benchmark in the supplier exposure report (CEPII BACI, our arithmetic). The largest single corridor, Brazil to China, was worth $1,056.9 million, or 31% of world trade in the line.

The United States is the exception, and it leans on Canada. In 2024 it split its ferroniobium import value 58% Brazil and 42% Canada, so no single supplier crossed the 65% benchmark (CEPII BACI). Canada mined only 5.4% of world niobium in 2025. USGS puts US net import reliance at 100% in every year from 2021 to 2025 (USGS MCS 2026, US only).

Niobium's output history reads differently depending on which USGS edition you open. The site's series, which joins settled figures from successive editions, has world output rising 31% from 2022 to 2023, from 83,700 to 110,000 tonnes of niobium content. USGS's first estimates for those two years implied a rise of only 5% (our arithmetic on the MCS editions). A flat headline can hide movement too: the world total stayed at 112,000 tonnes from 2024 to 2025, yet Canada's estimate fell from 6,900 to 6,000 tonnes while Brazil's stayed at 104,000 tonnes. The printed country figures sum to 112,384 tonnes for 2024 and 111,510 for 2025.

In 2025 Brazil mined 104,000 tonnes of niobium content, 93% of the world's 112,000 tonnes (USGS MCS). Canada followed with 5.4%, then DR Congo (Democratic Republic of the Congo) (0.9%), Russia (0.3%) and Rwanda (0.2%). The top two account for nearly all of it, and only 6 countries are recorded as mining niobium at all. Reserves stand at 21.4 million tonnes, with Brazil holding 66% and China 30% (USGS MCS).

Almost all of this supply comes from a few mines in carbonatite complexes, igneous rocks made mostly of carbonate minerals, where niobium sits in the mineral pyrochlore. USGS notes that most identified niobium resources occur this way and lie outside the United States. In Brazil the deposits at Araxá in Minas Gerais and Catalão in Goiás have been enriched by deep weathering; CBMM's own technical account of Araxá describes a weathered zone more than a hundred metres deep, with the niobium concentrated in the weathered mantle rather than the fresh rock. The other major source is the Niobec mine at Saint-Honoré in Quebec, which Magris describes as the only primary producer located outside Brazil and which works its ore underground.

DR Congo and Rwanda supply niobium in ores shared with tantalum, in quantities that are a rounding error next to Brazil's.

The reserve figures need care. China is credited with 6.5 million tonnes of reserves, yet China mines only 40 tonnes a year. Reserves measure what is judged economic to mine, not what is mined, so a large resource does not make a country a supplier. USGS also states that world resources are more than adequate for projected needs. Geological scarcity is not the issue in this market; the issue is who operates the mines. World output changed 0% on the previous year.

Brazil was the largest exporter of ferroniobium (HS 720293) in 2024 with 75% of world export value, ahead of Canada (9.8%) and Netherlands (7.8%), on world trade of $3.4 billion (CEPII BACI). China was the largest importer with 32%, followed by Netherlands (16%), United States (8%) and South Korea (6.2%).

This page tracks only ferroniobium, and the reason is a limit of customs classification. Niobium ore and concentrate share a single heading with tantalum and vanadium ores, so there is no clean niobium ore line, and any figure from that heading would mix three metals. Ferroniobium has its own code, 720293, and it is the form in which most niobium crosses a border, because producers convert concentrate into the alloy close to the mine. The table therefore leaves out niobium oxide, niobium metal and the ores shipped by the small producers, which USGS's import statistics do record.

Brazil's share of ferroniobium export value is below its share of mine output, and Canada, the Netherlands and Singapore all appear among the exporters. The data do not establish why; re-exports from trading hubs are one possibility. The importer list also contains places that make little steel, notably Netherlands and Singapore. CBMM lists sales subsidiaries in Amsterdam and Singapore, which suggests part of that flow is a distribution leg to mills elsewhere, though the customs data do not say so.

This page quotes no niobium price, because there is no free public series and no exchange contract. USGS reports an average unit value for United States ferroniobium trade, but that is a customs-derived average of mixed shipments rather than a price anyone transacts at, and quoting it as one would mislead.

What can be said is how the market is organised. With so few producers, supply runs through direct relationships between producers and steel mills, backed by agents and distributors rather than anonymous spot trading. Sojitz, for example, describes itself as CBMM's exclusive distributor in Japan; it also has a commercial relationship with CBMM through the 2018 battery agreement, so it is not a neutral observer of the market. A mill is typically buying a standardised alloy of about sixty-five percent niobium, and what it wants is continuity of a material already qualified in a certified steel grade.

It behaves less like a commodity auction and more like an industrial supply agreement. A buyer has few producers to choose from, and the largest is far larger than the rest. A seller, in turn, faces real alternatives: USGS lists molybdenum, vanadium, tantalum and titanium as materials that can take niobium's place in some steels, at a cost in performance or money.

Niobium demand is steel demand, and within steel it is the demand for higher-strength grades that matters. A 2025 review by CBMM and academic authors puts microalloyed steel as by far the largest use of niobium. A tonne of steel carries only a fraction of a percent of it, so consumption tracks the volume and mix of steel rolled rather than anything particular to niobium.

Line pipe was one of the first mass applications, and the same review shows niobium content rising as grades moved from X52 to X80. Long-distance pipelines, including the large Chinese West-East projects the paper lists, pull on niobium in large lumps when they are built.

Niobium refines grain size and raises strength, so it appears in high-strength automotive sheet, structural sections and rebar.

In high-strength low-alloy steels, vanadium and molybdenum can do part of niobium's job, and USGS lists titanium and tantalum as further options. The substitution has run in both directions, and the CBMM-led review notes that line pipe makers learned to drop vanadium additions in favour of niobium, so the balance between the two depends on relative cost and on how the steel is rolled.

CBMM is widely described as the dominant supplier, with the Catalão operation, owned by China Molybdenum, and Niobec in Canada as the other main sources. The 2011 sale of minority stakes in CBMM to Japanese, Korean and Chinese groups, and China Molybdenum's 2016 purchase of Catalão, gave buyers from steel-making countries ownership in supply.

Niobium titanium oxide anodes are being developed by Toshiba, Sojitz and CBMM, and Toshiba began sample shipments of a cell using one in 2025. Superconducting niobium alloys already serve in scanner and accelerator magnets. Both are small next to steel.

The United States mines no niobium and imports all it uses. USGS notes a Nebraska niobium, scandium and titanium project that received a Department of War award in 2025, directed at scandium alloy supply but expected to help its niobium and titanium operations too. If built, it would be the country's only niobium mine; USGS says it was still securing financing.

Niobium ore is mined from carbonatite, either in open pits, as at Araxá, or underground, as at Niobec, where Magris describes an open-stope operation in which the ore is drilled, blasted and hauled to the mill. The ore is crushed and ground and the pyrochlore is concentrated by flotation. The concentrate is not yet a clean product: CBMM's account of its early years at Araxá describes a long effort to remove silica, phosphorus, sulfur and lead from the concentrate, using calcination, a caustic leach and a chloride treatment, before it could meet steelmaking specifications.

Most of the concentrate then becomes ferroniobium by aluminothermic reduction. CBMM describes the step as a simple but massive reactor process in which aluminium reduces the niobium oxide, with iron added, to give a niobium-iron alloy. The alloy is cast, crushed and sized, and carries about sixty-five percent niobium, the factor USGS uses to convert ferroniobium to niobium content.

Higher-purity routes branch off from the same concentrate. Niobium oxide is made in several purity grades for optical and electronic uses, and vacuum-grade alloys and niobium metal for superalloys and superconductors. These are small in tonnage next to ferroniobium.

Everything on this page is niobium content, the metal itself, with oxide and alloy tonnages converted using the factors USGS publishes. A tonne of ferroniobium is therefore roughly two-thirds of a tonne of niobium, and quantities reported on a different basis are not directly comparable.

Steel takes the great majority. Niobium is a microalloying element: a few hundredths of a percent, and in modern line pipe up to about a tenth of a percent, is enough to refine the grain structure and harden the steel while it is being rolled, which raises strength and toughness without adding the carbon that would make the steel hard to weld. The result is high-strength low-alloy steel for pipelines, bridges, buildings, ships, storage tanks and the structural parts of vehicles. In the United States, USGS puts steel at the large majority of consumption and superalloys at most of the remainder.

Superalloys are the second application. Niobium goes into nickel-, cobalt- and iron-based alloys for jet engines, gas turbines and rocket components, where it contributes strength at high temperature.

Superconductivity is the third. Niobium-titanium and niobium-tin wire carry current without resistance when cooled, and they are the standard material for the large magnets in magnetic resonance imaging scanners and in particle accelerators.

The newest use is in batteries. A niobium titanium oxide anode, developed by Toshiba with Sojitz and CBMM, is meant to charge quickly and last for many cycles; Toshiba reports that a 50 amp-hour cell reaches eighty percent charge in ten minutes and started sample shipments in 2025. It remains early-stage and a small user of the metal.

The chain runs mine, concentrator, aluminothermic converter, distributor and steel mill. Unlike many critical minerals, processing is not separated from the mine by an ocean and a second country: producers convert concentrate into ferroniobium at or near the mine, so the concentration sits in the mine and its converting plant together.

The concentration of mining is extreme, and it is worth stating exactly what it means. Brazil accounts for 93% of mine output. One company within it, CBMM, is widely described as the dominant supplier, though that comes from company and distributor statements and USGS publishes no split by producer. By Magris's count there are only three primary producers worldwide. The risk is operational and commercial dependence: an interruption at one large site, or a decision by one seller, would reach almost every steelmaker at once. It is not a risk of running out, since USGS says resources are more than adequate and Brazil alone holds 66% of reserves.

The mitigants are real but partial. Niobium is used in fractions of a percent, so replacing it means changing the rolling schedule or alloy recipe, not redesigning the product, at some cost in performance or money. Scrap returns some niobium whenever niobium-bearing steel is remelted, although USGS notes it is not recovered specifically for niobium. New supply is being developed, including the Nebraska project USGS mentions, which has not yet been built.

The United States and the European Union list niobium among their critical minerals, a term explained in the glossary as a mineral that is economically important and whose supply is concentrated enough to be at risk. Niobium meets the second test more clearly than almost any other mineral, and the first because modern pipelines and structural steels rely on it. For how that differs from minerals where processing is the bottleneck, see producing, exporting and processing, and for the industry that consumes almost all of it, see steel.