Who makes rare earths for AI data centers
Rare earths & permanent magnets (fans, motors, gensets, wind)
Rare-earth elements and the permanent magnets made from them, used in motors and fans throughout the facility, from server and cooling fans to generator and turbine components.
Neodymium-iron-boron and similar rare-earth magnets are what make small, powerful, efficient motors possible — the motors inside server and rack fans, CRAH and fan-wall units, CDU and cooling-loop pumps, and the alternators and starter systems on backup generators and gas turbines (Layers 4, 5, 6, 7). The chain runs from mined and separated rare-earth oxides through magnet manufacturing, a step that has historically been concentrated in a small number of countries and companies. Data centers are not the largest buyer of rare-earth magnets — that's still autos and wind — but AI infrastructure adds motors in places legacy IT didn't need them (liquid-cooling pumps, denser fan arrays) and draws on the same tight magnet-supply base that other electrified end markets are pulling from. Governments in multiple regions have pushed to build alternative separation and magnet-manufacturing capacity outside the traditional supply base, and some fan and motor makers are qualifying reduced-rare-earth designs as a hedge. For investors, the relevant signals are the pace of non-traditional separation and magnet capacity coming online, magnet-maker qualification cycles with data-center-relevant component makers, and how exposed a given fan, pump or genset supplier is to a single magnet source.
AI delta: Liquid cooling adds pump and CDU motors that air-cooled racks didn't need, and denser fan arrays add motor count, so AI infrastructure increases the number of rare-earth magnets drawn per rack even though data centers remain a small buyer relative to autos and wind.
Companies on this part (15)
| Company | Role | Ownership | Ticker | Price | 1d | Confidence | Note |
|---|---|---|---|---|---|---|---|
| Arafura | manufacturer | public | ARU.AX | 0.14 AUD | -3.3% | inferred | |
| Energy Fuels | manufacturer | public | UUUU | 7.52 USD | -2.3% | inferred | |
| Iluka | manufacturer | public | ILU.AX | 4.96 AUD | -4.4% | inferred | |
| JL Mag | manufacturer | public | 300748.SZ | 25.67 CNY | +3.1% | inferred | |
| Lynas | manufacturer | public | LYC.AX | 10.71 AUD | -5.9% | disclosed | · source |
| MP Materials | manufacturer | public | MP | 38.30 USD | -0.4% | disclosed | · source |
| Neo Performance | manufacturer | public | NEO.TO | 24.36 CAD | +0.2% | disclosed | · source |
| Northern Rare Earth | manufacturer | public | 600111.SS | 36.53 CNY | +2.9% | inferred | |
| Shin-Etsu | manufacturer | public | 4063.T | 5826 JPY | +0.1% | inferred | |
| TDK | manufacturer | public | 6762.T | 2625 JPY | -6.1% | inferred | |
| USA Rare Earth | manufacturer | public | USAR | 9.33 USD | -3.0% | disclosed | · source |
| Niron | manufacturer | private | inferred | iron nitride | |||
| Noveon | manufacturer | private | inferred | ||||
| Proterial | manufacturer | private | inferred | ||||
| VAC | manufacturer | private | disclosed | Ara Partners · source |
Who competes here
The same table read the other way: every company above competes for rare earths & permanent magnets sockets. Confidence tags matter — an inferred placement is a lead, not a confirmed rivalry.
Nearby parts
- Previous in layer: Grain-oriented electrical steel & amorphous cores
- Next in layer: Specialty glass & glass fiber
- Layer: Layer 10 — Materials & upstream inputs
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- TSMC reportedly surveys suppliers on rare-earth-free motors as China's export-control pause nears legal expiry — DigiTimes, 2026-10-23TSMC is examining options for rare-earth-free motors in its factory equipment due to approaching changes in China's rare-earth export controls.
- TSMC is seeking chipmaking equipment that doesn't contain Chinese rare-earth magnets — Tom's Hardware, 2026-10-22TSMC is requesting that equipment suppliers provide factory machinery that avoids rare-earth magnets to mitigate risks associated with China's control over critical minerals.
- China Rare Earth Group moves downstream, linking rare-earth magnets to robot direct-drive systems — DigiTimes, 2026-10-01China Rare Earth Group is expanding its downstream capabilities by connecting rare-earth magnets to robot direct-drive systems.
- Taiwan keeps door open for Chinese parts in drones — DigiTimes, 2026-09-25Taiwan is allowing the use of Chinese-made components for non-critical items like passive components, magnets, and optical lenses in its drone supply chain.
- Kodiak Gas Services to supply 76MW of behind-the-meter gas power to West Texas data center — Data Center Dynamics, 2026-09-21Kodiak Gas Services will provide 76MW of natural gas-fueled power directly to a data center in West Texas.
- Minebea Mitsumi pauses M&A to chase AI hardware demand — DigiTimes, 2026-09-15Minebea Mitsumi paused its mergers and acquisitions plans to focus its production of motors and actuators in response to accelerating demand from AI hardware and data center components.
- Teravolt looks to cannibalize older industries to meet AI power demand — The Register, 2026-09-14Teravolt plans to repurpose older infrastructure, such as Bitcoin farms and aluminum smelters, to meet the rising power demands of data centers.
- AI server exports to US slow; electronics parts jump 1.5 times in August — DigiTimes, 2026-09-13Taiwan reported that electronic parts exports reached a record high of $32.22 billion in August 2026, with integrated circuits and printed circuit boards seeing significant growth.
- Taiwan sees AI-era power upgrade openings in France — DigiTimes, 2026-09-12Taiwanese companies are exploring energy and power infrastructure upgrades in France through trade delegations focused on grid security and energy resilience.
- Court rejects DOE ‘emergency’ order delaying coal plant retirement as overstep — Utility Dive, 2026-09-11A federal court ruled that the Department of Energy's use of 'emergency' powers to delay the retirement of coal plants was an overstep of statutory authority and threatens energy market stability.
Questions about rare earths & permanent magnets
- What are rare earths & permanent magnets?
- Rare-earth elements and the permanent magnets made from them, used in motors and fans throughout the facility, from server and cooling fans to generator and turbine components.
- Which companies make rare earths for AI data centers?
- This catalog lists 15 companies on Rare earths & permanent magnets, 11 of them with listed equity: Arafura, Energy Fuels, Iluka, JL Mag, Lynas, MP Materials, Neo Performance, Northern Rare Earth, Shin-Etsu, TDK, and 5 more.
- How does AI change demand for rare earths & permanent magnets?
- Liquid cooling adds pump and CDU motors that air-cooled racks didn't need, and denser fan arrays add motor count, so AI infrastructure increases the number of rare-earth magnets drawn per rack even though data centers remain a small buyer relative to autos and wind.
- How reliable are these rare earths & permanent magnets supplier placements?
- The 15 placements on this part break down as 5 disclosed, 10 inferred. "disclosed" means the company or a filing says so; "reported" comes from trade press or a reference-design list; "inferred" is a taxonomy lead with no citation yet.
Sources: placements without a source URL come from the taxonomy seed and are tagged accordingly. How this data is built.· Markdown · JSON