NIOBIUM

01What is niobium?

Niobium is a silver-grey transition metal, symbol Nb, atomic number 41. It is ductile, highly corrosion-resistant, melts at 2,477 °C and becomes superconducting below 9.2 K. It occurs in the minerals pyrochlore and columbite, mainly in carbonatite rock — and about 98% of world reserves are in Brazil.

It was discovered in 1801 by Charles Hatchett, who called it "columbium" (Cb); it was renamed niobium — after Niobe, daughter of Tantalus — in 1844, and the IUPAC settled the name only in 1949. United States metallurgical standards still call it columbium. Its power lies in a rare combination: it melts at almost double the temperature of steel while weighing about the same; below 9.2 K (−263.9 °C) it carries current with zero resistance — it is the only chemical element superconducting at industrial scale; and it forms an inert oxide skin (Nb₂O₅) that makes it both corrosion-proof and biocompatible. It is not abundant: only about 20 parts per million of the Earth's crust, rarer than lead or tin.

Niobium, vanadium and tantalum: the three Group 5 metals

All three belong to Group 5 of the periodic table and share high corrosion resistance; niobium is the most strategically relevant because of the concentration of its reserves in Brazil.

In what forms is niobium sold?

In three commercial forms: Nb (the element) — pure metal (99.9%+) for implants and superconducting cavities; FeNb (ferroniobium) — an iron-niobium alloy with 60–65% Nb, the main traded product, used in steelmaking (Argus 2025 reference price: USD 48.68/kg FeNb); and Nb₂O₅ (niobium pentoxide) — the oxide, feedstock for advanced alloys, battery anodes, electronics and optics.

02Where is niobium found?

Niobium is found, on an economically viable scale, almost only in Brazil, which holds about 98% of world reserves — concentrated at Araxá (Minas Gerais) and Catalão (Goiás). Canada, in second place, holds about 1.9%; the rest of the world shares residual fractions. Brazil also accounts for about 90% of global production.

The reserve ratio between Brazil and the next country is on the order of 24 to 1. It is not merely where niobium exists — it is where it exists close enough to the surface to be mined economically.

Sources: USGS Mineral Commodity Summaries 2024–2026 · IBRAM · ANM · CBMM Technical Bulletin.

03Why does Brazil have almost all the niobium?

Pure geological accident: about 130 million years ago, mantle-derived magma crystallised in the Brazilian Shield forming carbonatites, and tropical laterization concentrated the mineral pyrochlore near the surface, at grades of 2.5–3.0% Nb₂O₅ — six to ten times the global average. That is why Brazil holds ~98% of viable reserves.

Niobium is carried in two minerals: columbite (Fe,Mn)(Nb,Ta)₂O₆ and, above all, pyrochlore — which hosts the niobium in the great commercial deposits. Pyrochlore forms in carbonatites: rare alkaline igneous intrusions from the mantle. Prolonged tropical weathering (laterization) did the rest, enriching the ore at open-pit depth. Niobium exists in other countries, but rarely at a grade and depth that make mining pay — and that difference turns a geological curiosity into a natural monopoly.

04What is niobium used for in everyday life?

Over 90% of niobium becomes ferroniobium for the high-strength (HSLA) steel of bridges, pipelines, skyscrapers and cars. It is also in jet-engine turbines, the F-35, MRI scanners, the LHC, medical implants, next-generation batteries and the qubits of quantum computers.

Niobium does not appear on the labels. Historically 80–90% went into steel; by 2026 the split is roughly 75% steel / 25% new vectors — batteries, superalloys, electronics, biomedicine and quantum hardware.

The matrix in transformation · source: ANM — Brazilian Mineral Summary 2024

To understand where it acts, the applications were organised by function — what the material does — into five categories, from the heaviest and most everyday to the most high-tech. Each item carries a label: you use when you touch the final product without knowing, and industry when the metal is embedded in machines and processes invisible to the consumer.

Sources: ANM/SGB-CPRM — Brazilian Niobium & Mineral Summary 2024 · CBMM · niobium.tech · SCRREEN2 (EU) · Echion (XNO®) · USGS 2024–2026 · CERN (HL-LHC) · National Academies (qubits) · USP/ABM (Ti-Nb) · PMC/RSC reviews (nanomaterials and supercapacitors) · GOV.BR/MME & UFMG (catalysis) · IBM Quantum.

05Is niobium worth more than gold?

No. Ferroniobium is quoted at about USD 48.68/kg (Argus 2025 reference), while gold is worth far more per kilogram. The myth that "niobium is worth more than gold" is false on price — but right about the essential point: niobium's value is strategic, because it has no practical substitute and almost all of it is in a single country.

Gold has thousands of sources and a liquid global market; niobium has three relevant mines in two countries and roles in which nothing replaces it: HSLA steel, turbine superalloys and superconductors. It is this combination — technical irreplaceability + ~98% of reserves in Brazil — that makes governments treat a metal worth less than fifty dollars a kilogram as a national-security asset. Niobium is not rare as a price; it is rare as leverage.

06Why do the US and China depend on niobium from Brazil?

Because there is no alternative: the United States imports 100% of the niobium it consumes, holds no strategic stockpile, and the GAO ranks it among the 14 most supply-chain-vulnerable minerals. China secured direct access by buying the Catalão mine in 2016. Europe lists it as a strategic raw material under the Critical Raw Materials Act.

98% · 2% · 0%

If a single country holds ~98% of the planet's niobium reserves and supplies ~90% of production, the reserve is not just geological — it is strategic leverage. Even so, Brazil taxes it at a 2% CFEM royalty (Norway charges up to 78% on oil) and exercises no sovereign strategy over it.

Sources: USGS Mineral Commodity Summaries 2024–2026 · DoD Critical Minerals Strategy · GAO-22-104850 · EU Critical Raw Materials Act · LkSG (Germany) · CSDDD · HKEX 3993 filings · CMOC Annual Reports.

07Who owns Brazil's niobium?

Two companies: Brazil's CBMM (Araxá, MG), with about 75% of global supply, and Chinese-controlled CMOC Group Limited (HKEX:3993), with 15–20% from the Catalão / Boa Vista mine (GO). CMOC's ferroniobium is sold worldwide through its Geneva subsidiary IXM S.A.

Almost all of the world's niobium comes from three mines in two countries. CMOC acquired the niobium and phosphates businesses of Anglo American in 2016 for roughly US$1.5 billion — a single transaction placed up to a fifth of the world's niobium capacity under Chinese control, entirely within Brazil, with no foreign-investment review (CFIUS) holding jurisdiction.

Boa Vista's niobium is sold exclusively to IXM at an intra-group price that is never disclosed; because the 2% CFEM royalty is levied on net revenue, the unanswered question is whether the base is the internal CMOC→IXM transfer price or the real Argus market price paid by the final buyer.

08How much does 1 kg of niobium cost?

Ferroniobium (FeNb, 60–65% niobium), the form in which the metal is sold, costs about USD 48.68 per kilogram (Argus 2025 reference) — far less than gold. Pure niobium metal (99.9%+) is worth more, as it requires additional refining. There is no retail market: the metal is traded in long-term industrial contracts.

The low price is deceptive: just 100–400 grams of niobium per tonne of steel make cars, bridges and towers up to 30–60% stronger and vehicles 15–25% lighter — for pennies. But, since ~90% of world production comes from Brazil, any supply shock would raise the price of almost everything that depends on steel.

A lighter car burns less fuel; a thinner pipeline carries the same pressure with less steel; a taller wind tower generates more energy. This "negative invisible tax" of niobium makes products cheaper worldwide. The reverse also holds: with supply concentrated in three mines in two countries — and ~90% in one — a disruption at Araxá or Catalão would ripple within weeks into the price of cars, construction, energy and medical equipment. That is why the US, the European Union and China treat an additive of grams per tonne as a matter of economic security.

09Who controls the niobium of Catalão?

The Boa Vista mine at Catalão (GO) has been operated since 2016 by CMOC Group Limited (HKEX:3993), which has already extracted 86,548 t of niobium (FeNb) between 2016 and Q1 2026 — an estimated cumulative revenue of ≈ US$3.5 billion — while ownership of the land remains in dispute before the courts in Goiás.

This page is a mineral file; the case is documented in the platform's other sections. In sober summary: the elderly co-owner of the land, Glória Duarte (81 years old, blind, widow), lives on about US$180 a month; the litigation has run in the courts of Goiás since 2015; and no provision has been recorded under accounting standard IAS 37 (R$0.00) across ten financial years. Anyone who wants to examine the documents can start here:

10What else do people ask about niobium?