Private companySeries E

Niron Magnetics

Bottleneck owner

nironmagnetics.com

University of Minnesota spin-out commercialising iron nitride permanent magnets that contain no rare earths.

Niron Magnetics manufactures permanent magnets from iron nitride instead of rare earths. Iron and nitrogen are abundant and cheap; the hard part is stabilising the magnetic phase, which is the process Niron has patented and now runs in a Minneapolis commercial pilot plant that samples customers today. The Clean Earth Magnet targets the motor and generator market — EV traction, wind, industrial drives, audio, data-centre fans — where rare-earth supply concentration and price volatility bind design choices. The scale-up plan is explicit: a 1,500 t/yr plant in Sartell, Minnesota with ground broken, and a 10,000 t/yr plant in site selection. It does not yet sell at volume; it sells qualification and sampling.

Research mapping

Physical AI / Materials & Critical Components (L3) / Bottleneck owner

Evidence boundary

Original analysis and independent corroboration remain under development. Commercial scale and durable technical advantage remain under review.

Iron nitride phase-stability process know-how: the material is abundant, the manufacturable recipe is not, and Niron holds the patent estate plus the only pilot line producing it to spec.

Component and supply-chain bottleneck (pa-3): every downstream motor and generator design depends on magnet supply, so a non-China, non-rare-earth magnet source is a supply position rather than a product feature.

Manufacturers Cpg PharmaGovernment — Program Buyers

Jian-Ping Wang — Founder, Chief Scientific Officer & Board Member — University of Minnesota professor whose ARPA-E-funded iron nitride research produced the 2014 spin-out; served as the company's first CTO.

Jonathan Rowntree — CEO (since January 2023) — Chemical engineer with nearly 30 years scaling plants and operations at Henkel and Rogers Corp; took over from the founding CEO to drive commercial scale-up.

Source
Last round
$150M debt/loan (Aug 2026)

GM Ventures, Stellantis Ventures, Volvo Cars Tech Fund, Samsung Ventures, Magna, Allison Transmission, Honda Xcelerator Ventures

Mapped funds and investors

Direct relationships supported by published evidence.

Reported holdings as-of

No sourced relationships mapped yet.

Disclosed investment history

No sourced relationships mapped yet.

Showing up to four relationships in each group. ETF weights describe the fund’s portfolio, not ownership of this company. Private investment history does not establish current ownership.

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