Honda did not just invest in a magnet company this month. It joined a line that already includes the Pentagon and a sovereign Native American nation — and Honda wasn’t first, and it likely wasn’t the biggest.
On September 9, Honda Motor Co. disclosed an equity investment in Niron Magnetics, a Minneapolis startup that builds permanent magnets out of iron and nitrogen instead of rare earth elements. The announcement landed the following day alongside a steel-raising ceremony at Niron’s new manufacturing plant in Sartell, Minnesota, the kind of hard-hat, industrial-milestone event companies stage when they want a financing story to look like a construction story. Honda didn’t disclose how much it put in. That omission turns out to be one of the more useful data points in the whole release.
Here’s why. Two months earlier, the U.S. Department of War’s Office of Strategic Capital offered Niron a conditional $150 million, 20-year direct loan to help build the Sartell plant. A week after that, the Shakopee Mdewakanton Sioux Community, a Dakota tribal government near Minneapolis that has quietly backed Niron since 2016, closed a separate $150 million loan of its own. That’s $300 million in committed government and tribal capital sitting on Niron’s balance sheet before Honda’s name ever appeared in a press release. Corporate venture arms like Honda Xcelerator Ventures typically write checks in the low millions, not the hundreds of millions. Whatever Honda contributed, it is very likely the smallest serious number in this deal, not the largest.
That matters because of what it says about who is actually funding America’s attempt to build a magnet supply chain that doesn’t run through China. It isn’t Detroit or Tokyo leading with open checkbooks. It’s the Pentagon, treating magnet capacity as a national-security line item, and a tribal government that got into this trade a decade before it was fashionable. The automaker looks more like a strategic passenger here than a driver.
The technology itself deserves the double-take it’s getting. Most electric motors, in EVs, in electric power steering, in HVAC blower motors, rely on permanent magnets made from neodymium and other rare earth elements refined almost entirely outside the United States. Niron’s Iron Nitride magnets skip rare earths altogether, built instead from two of the most abundant elements on the planet. That’s a meaningfully different pitch than the domestic rare earth reshoring projects you may have heard about elsewhere, where companies mine rare earth ore inside the U.S. but still depend on the same chemically difficult separation process China has spent decades perfecting. Niron isn’t trying to out-refine China. It’s trying to make refining unnecessary.
It’s worth sitting with how long this has been coming. The Iron Nitride chemistry traces back to University of Minnesota research that Niron has spent roughly 13 years turning into something a factory can actually build. China’s dominance of rare earth processing isn’t new information to automakers; it’s been a known vulnerability for well over a decade. Yet the first commercial-scale plant capable of building these magnets at volume only just raised its steel frame, and it won’t ship product until 2027. Niron CEO Jonathan Rowntree described the Sartell facility as the place where the technology moves “from the lab to full-scale American manufacturing” — an accurate description, and also an admission of how early this still is.
Scale is the second gut-check. Sartell will produce up to 1,500 tons of magnets a year once it’s running. Niron’s own materials cite global permanent magnet demand climbing from roughly 280,000 tons today to more than 600,000 tons by 2035. A 1,500-ton plant against that backdrop is a proof of concept, not a solution, which is presumably why Niron is already scouting a second, 10,000-ton plant that hasn’t broken ground yet. Nobody shopping for a car in the next few years should expect this investment to move a sticker price or a delivery date.
Honda isn’t alone in hedging, and it isn’t even taking the most aggressive position among automakers. General Motors has gone the opposite direction, moving to lock down its own conventional rare earth magnet supply rather than bet on an unproven alternative chemistry. Congress isn’t picking a side either. The Magnets Value Chain Support Act, introduced in June with bipartisan sponsorship from the leadership of the House Select Committee on China, offers tax credits to domestic magnet producers and the automakers who buy from them, rare earth and rare-earth-free alike. When the people writing the incentive checks won’t bet on a single winner, that tells you how unsettled this technology race still is.
There’s also a quieter tell in how Honda structured this. Compare it to what Niron signed with ASPINA, a precision motor manufacturer, back in July: an actual supply agreement to co-develop specific motors for specific applications. Honda’s move ran through Xcelerator Ventures, its startup-investing arm, a bet on the company’s future rather than a commitment to redesign any current Honda motor around Iron Nitride magnets. It’s a call option, not a purchase order. If Niron’s magnets prove out at scale, Honda gets a seat at the table and maybe a pricing edge later. If they don’t, Honda is out whatever modest sum it wrote down, and its actual vehicles keep using the rare earth magnets they use today.
None of that makes the investment meaningless. It makes it exactly what it is: a hedge, sized like a hedge, sitting on top of a pile of government and tribal capital that’s doing the actual heavy lifting. The magnet that finally frees American factories from Chinese rare earth processing may trace its roots back to a Minnesota tribal government’s loan and a Pentagon financing office years before anyone remembers which automaker’s name sat atop the press release.
Is a small investment still worth it if it moves the whole industry forward? Tell us in the comments.