Technology thesis · Critical Materials
high conviction matureNeodymium iron boron (NdFeB) magnets
NdFeB magnets are the strongest permanent magnets available and irreplaceable in current EV motor and wind turbine designs; 90%+ production is Chinese.
Position maintained continuously · last reviewed Apr 22, 2026
The thesis
Core thesis
Every EV motor and direct-drive wind turbine uses NdFeB magnets. No substitute matches the magnetic energy density. Chinese manufacturers hold the IP and processing know-how. Jian-Ping Wang (University of Minnesota, Niron Magnetics) is pioneering iron nitride as a rare earth-free alternative — potentially game-changing if performance parity is achieved.
State of the art (2026)
The defining shift of 2026 is that Western NdFeB capacity has stopped being a slide and started being a plant. MP Materials began magnet production at its Independence facility in Fort Worth in December 2025 and is ramping output for General Motors through 2026, with a second Northlake plant breaking ground toward roughly 10,000 tonnes a year. e-VAC Magnetics has completed its South Carolina plant (around 2,000 tonnes a year, the bulk earmarked for GM). Niron Magnetics is building a 1,500-tonne iron-nitride line in Sartell for early-2027 operation. Against this, China still makes the overwhelming majority of finished magnets, and its April 2025 controls on dysprosium and terbium remain enforced – May 2026 Chinese magnet exports fell about 35% month-on-month.
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Signal stack
Evidence stacked leading → lagging
Technology-native KPIs
Metrics that predict trajectory, tracked over time
Landscape map
Who builds what — and who depends on whom
Catalyst calendar
Dated events that will move the position
Technology roadmap
Milestones on the path to maturity
Watchlists
Companies, people and papers — each with a remove-by condition
Decision frameworks
The same call, framed for your desk
Thesis changelog
When our view changed, and why
Change our mind
3 disconfirming conditions
The rest is inside
You've read the verdict. The file is much deeper.
The full signal stack, technology-native KPIs tracked over time, the landscape of who depends on whom, the dated catalyst calendar, decision frameworks for every desk, live watchlists and the changelog of every time our call on Neodymium iron boron (NdFeB) magnets has changed — all live inside CanaryIQ.