Rare earth
TerbiumA specialised addition to demanding magnets.
Terbium can improve the high-temperature performance of neodymium-based magnets. Its supply story is closely linked to heavy rare-earth separation and the material specifications of magnet manufacturers.
Explore the case
- Material
- Tb
- Key uses
- High-temperature permanent magnet performance
- Supply to understand
- Heavy rare-earth separation
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Terbium in detail
Terbium is a critical rare earth element vital for enhancing high-performance permanent magnets, enabling the durability and efficiency of electric vehicle (EV) motors, wind turbines, and advanced aerospace technologies. Its unique ability to improve thermal stability in neodymium-based magnets makes it indispensable in high-temperature applications, defense systems, and cutting-edge electronics.
Demand for terbium is rising with the expansion of green energy and electric mobility, yet its supply is severely limited, with over 95% controlled by China. Geopolitical risks, supply bottlenecks, and export restrictions drive extreme price volatility, solidifying terbium’s role as a strategically important and highly valuable investment in the rare earth market.
The only published current non-China figure is 62 tonnes for dysprosium and terbium combined.
Lynas reports dysprosium and terbium together, so the terbium amount is unknown. Four projects publish 235 tonnes a year of separate terbium capacity, but on different schedules.
China benchmark
91%1This is a four-material share, not a terbium-only share.
Best documented alternative
62 tonnes2Lynas reports the two heavy materials together and does not publish a terbium-only split.
Caremag lists 90, White Mesa 80, Lynas 50 and Canada's SRC route 15 tonnes a year. Lynas's figure is subject to approvals, raw material and a successful start-up. The projects are not expected to arrive together.
Why Invest in Terbium?
Terbium is one of those niche materials that rarely gets much attention until a government decision turns it into a pricing event. That is basically what happened in 2025, when China put export controls on seven heavy rare earths, terbium included. Anyone shipping Chinese-origin rare earth materials now needs a MOFCOM license, and every time I read that sort of language I translate it the same way: shipments get messier, delays show up faster, prices usually follow.
That is exactly what happened here. Terbium went from $1,396.50 per kilogram in January to $3,484.50 per kilogram at internal resale levels after the stop-start export policy and the October tightening. That is not a mild commodity bounce. It is more like watching something move from expensive industrial input to strategic bottleneck in a matter of months.
That is what makes the 2026 case interesting. Supply is concentrated, policy risk is real, and the market has already had a reminder that Beijing is willing to use both. Terbium is also tied to technologies with genuine industrial demand behind them, which matters far more than a purely speculative story.
For me, that is the key point. This is not just a chart moving for no reason. It is a small, strategically important market where supply is tightly controlled, demand still has real industrial backing, and prices have already shown how quickly they can respond when export restrictions start to bite. That does not make terbium a sure thing, but it does make it one of the more credible rare earth stories to watch in 2026.
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Terbium Price Trends
Who manufactures terbium?
Terbium Demand and Price Forecast
View Sources (5)
- https://www.vaneck.com/globalassets/home/ucits/sales/whitepaper-why-rare-earths-are-the-new-oil.pdf
- https://www.mckinsey.com/industries/metals-and-mining/our-insights/powering-the-energy-transitions-motor-circular-rare-earth-elements
- https://carboncredits.com/rare-earth-demand-to-triple-by-2035-can-the-u-s-catch-up-with-china/
- https://rareearthexchanges.com/news/chinas-terbium-engine-how-one-country-came-to-control-the-worlds-heavy-rare-earth-flows/
- https://www.marketsandmarkets.com/PressReleases/rare-earth-metals.asp
How to Invest in Terbium
Investing in Terbium presents unique challenges, as it is not traded on major commodity exchanges and lacks standardised futures contracts.
Unlike gold or silver, there is no widely available spot market, making price discovery opaque.
The most popular way to try and gain exposure is through publicly traded rare earth mining companies such as Lynas Rare Earths and MP Materials, which produce terbium as part of a broader rare earth mix. However, their revenues are influenced by the entire rare earth market rather than terbium specifically.
Moreover, these companies are miners whose stock price is a function of their profitability rather than underlying assets.
Direct Invest
For direct investment, acquiring high-purity terbium oxide or metal from specialised dealers is an option. Due to its strategic importance, limited supply, and price volatility, professional storage in secure vaults is recommended for safekeeping and resale.
As a critical material essential for high-performance magnets, defense applications, and green technology, terbium represents a compelling, though highly specialised, investment opportunity in the rare earth sector.
Sourcing Terbium
Terbium is currently unavailable through our suppliers. We are working on sourcing it. Contact us to discuss availability.
* Not financial advice. Industrial metal buying is not a regulated investing space.
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Looking to buy Terbium for Industrial usage?
This page is focused on Terbium as an investment asset (buy and hold). For industrial purchase of Terbium please, click here.
Leading Industrial Terbium Alloys
Before you decide
A useful thesis has a question behind it.
How much terbium do customers require per magnet, and can suppliers deliver the separated product they need?
Use the research above to test the case. Then check the exact material, purity, available quantity and resale terms against a dated quote.
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