Niron Magnetics, Inc.
Privately held U.S. advanced-manufacturing company commercializing high-performance rare-earth-free Iron Nitride permanent magnets. Niron operates a commercial pilot plant in Minneapolis and is building its first commercial-scale plant in Sartell, Minnesota, with up to 1,500 tonnes per year of planned capacity and operations targeted for 2027. The company is also evaluating a later U.S. high-volume plant of up to 10,000 tonnes per year.
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Latest Coverage
Sep 30, 2026
Honda Backs Niron as 1,500-Tonne Rare-Earth-Free Magnet Plant Takes Shape
Honda has invested in Niron Magnetics as the U.S. developer builds a 1,500-tonne-a-year iron-nitride magnet plant in Sartell, Minnesota, due to become operational in 2027. The investment amount and any Honda supply commitment remain undisclosed, leaving automotive qualification and plant ramp-up—not construction capacity—as the next commercial proof points.
Jan 20, 2026
Niron and FaitalPRO Debut Rare-Earth-Free Loudspeakers
Niron Magnetics and FaitalPRO introduced 8‑ and 10‑inch loudspeakers using Iron Nitride magnets to remove rare‑earth dependence while retaining pro audio performance.
Nov 20, 2025
U.S. Pushes Fe–N Magnets, Warns on NdFeB Reliance
Niron urges U.S. support for Fe–N magnets while insisting on securing NdFeB supply chains for high-performance defense and EV needs.
Oct 17, 2025
Stellantis and Niron Advance Rare-Earth-Free Magnets
Stellantis and Niron will develop Iron Nitride, rare-earth-free magnets for novel motor architectures, backed by DOE funding and US manufacturing capacity.
Oct 3, 2025
Niron Magnetics breaks ground on Iron Nitride plant
Niron Magnetics is building a Sartell Iron Nitride magnet plant to scale rare‑earth‑free magnet production and strengthen domestic supply chains by 2027.
Sep 30, 2025
Niron Breaks Ground on Iron Nitride Magnet Plant
Niron is building a Sartell plant to produce 1,500 tpa of Iron Nitride rare-earth-free magnets, challenging Chinese NdFeB dominance if scale-up succeeds.
Sep 29, 2025
Niron Magnetics Breaks Ground on Rare‑Earth‑Free Plant
Niron Magnetics is building a Sartell plant to mass‑produce iron‑nitride permanent magnets, cutting reliance on rare earths and strengthening domestic supply chains.
Sep 29, 2025
Niron Magnetics Breaks Ground on Rare-Earth-Free Magnet Plant
Niron is building a 190,000 sq ft plant in Sartell to mass-produce Iron Nitride permanent magnets without rare-earth elements, scaling domestic supply.