John Maslin
Co-Founder & CEO, Vulcan Elements · 1 appearance on the record.
computed by AI from the episodes · how this works → · full disclaimer →
founderexecutiveLinkedIn ↗
John Maslin is the co-founder and CEO of Vulcan Elements, an advanced manufacturing startup producing domestic sintered rare earth magnets. A former U.S. Navy financial manager, he led the company to a $65 million Series A round to construct a domestic magnet manufacturing facility.
30statements → 18claims → 9claims resolved → 67%fully supported → 3.93/5average certainty → 1.53/5average debate potential → ≈4.5/5argument clarity, estimated →
6 supported 1 partly supported 2 contradicted 9 not checkable as stated how the 18 claims stand · each chip opens the sources
2 predictions · 16 assertions · 3 opinions · 3 insights · 6 disclosures · every statement was checked. The predictions and assertions are the 18 claims: statements the public record can support or contradict. 9 are resolved, and 9 name no date, number or outcome precise enough to check. Everything else (opinions, insights, what ifs, disclosures) can never be settled by the record, so it carries no assessment.
The record, in short
What the tape says about how John argues and how the claims held up. Everything they said, and everything said about them, is in the tabs below.
Their most notable supported claim
DOD rules ban Chinese magnets in defense hardware by 2027
“If you look at section eight, 44 of the fiscal year, 21, NDAA, they actually banned the use of Chinese magnets and there have been follow on addendums that say by January first of 20, 27, you need any company that sells to the DOD. If there's a magnet, which i…”
How they sound: not measured why? →
We measure speaking style by listening to the audio itself, and a fair number needs at least 2,000 words from one person on tape we have measured. There is too little of John Maslin on measured tape to publish a rate. This says nothing about how they speak.
Everything John Maslin said on Sourcery that made the record, most notable first. Filter by type, assessment or year in the ledger →
Maslin: Copy-pasting Chinese manufacturing methods to the US will fail
“If you're just copying and pasting China into the United States and trying to build a manufacturing business around that, you are doomed. You will absolutely fail because when you think about the unit economics, labor costs, Environmental regulations. Permits.…”
Vulcan CEO John Maslin is bullish on manufacturing under Trump
“I'm bullish. I think he's already doing it. I can think of a couple of projects, you know, personally in the rare space where we can really put our thumb on the scale and make that happen. I think it's going to take an entire government and industry coalition …”
Maslin: Virtually 100% of Magnet-Making Equipment Comes from China
“If China manufactures, 94% of the global supply of these magnets, where do you think all of the equipment to make those magnets comes from? It's virtually a hundred percent.”
Maslin: Vulcan Elements won DOD contracts across every military branch
“One thing that we're really proud of here is we've won several DOD contracts over the line, over the last nine months with every branch of the military, top priority programs, making sure that the defense industrial base has the material that it needs to go an…”
Maslin: Humanoid robotics reaching planned volumes could 10x global rare earth magnet demand
“If we hit the volumes that companies like Optimus or Figure AI are discussing, that could 10 X the global demand for rare earth magnets by themselves, not even touching on the other industries that are going exponential, like drones or cars”
DOD rules ban Chinese magnets in defense hardware by 2027
“If you look at section eight, 44 of the fiscal year, 21, NDAA, they actually banned the use of Chinese magnets and there have been follow on addendums that say by January first of 20, 27, you need any company that sells to the DOD. If there's a magnet, which i…”
Vulcan Elements Raises $65M Series A Led by Altimeter
“So we're excited to announce that we have raised a sixty-five million dollar Series A bringing us up to a total investment to date of seventy-five million dollars. This round is led by Altimeter, so Brad Gerstner and Eric Kreisman, major participation from Raj…”
Maslin: China Produces Up to 94% of Rare Earth Magnets, US Under 1%
“China was producing over 90, up to 94% of the global supply and the US was producing less than one percent.”
Maslin: Autonomous Vehicles, AI Data Centers, and Robotics Require Rare Earth Magnets
“When you think about the next generation technologies that will define the 21st century, whether that's Autonomous vehicles or robotics or the data centers that enable AI, drone technology. All of that has to have a rare earth magnet turning that motor, sensor…”
Maslin: Every moving piece of US defense hardware requires rare earth magnets
“When you think about national security, every satellite, every drone, every missile, every tank, every ship, every submarine, every piece of hardware that moves, that the defense department uses, needs a rare earth magnet.”
China mines 60% of rare earths but manufactures 94% of magnets
“Today, China mines 55 to 60% of the rare earths. They manufacture 90 to 94% of the magnets. They're actually importing the difference.”
Maslin: The US has sophisticated multi-generational manufacturing talent across key states
“When you look at the SMBs, those mom and pop shops that have been doing CNC machining or welding or any other type of metal work for the last 25 years, we have incredibly sophisticated technicians in this country. We have second, third, fourth generation welde…”
Maslin: DC and Silicon Valley signaling is making industrial trades attractive again
“Through things like re-industrialization, that conference, and just all of the signaling that DC cares about this, that Silicon Valley cares about this, we're making it sexy again to some fourteen-year-old, some eighteen-year-old who says, I want to go and bui…”
Maslin: Magnet manufacturing cannot simply be turnkey push-button automated
“This is very sophisticated, advanced manufacturing. People tend to think this is buy a piece of equipment, press a button, make a magnet. That is not the case. You need to understand how every step is coupled to the next, and you need to make sure that your ra…”
Maslin: U.S. rare earth industry needs multiple 10,000-ton facilities
“That said, we need several 10,000 ton facilities. We need several companies going and creating competition and innovating and doing this better and faster and cheaper.”
Maslin: Vulcan Elements produced and shipped magnets within four months
“And in four months, we are already producing magnets. We are making magnets and shipping them to customers qualifying them with customers across our disk drives for data centers that enable AI, automotive applications. Drones, robotics several different defens…”
Maslin: Vulcan Elements aims to 5x-20x factory output using software in a few years
“We're collecting all of that data, we're building out our software team, and we're thinking about how we actually implement that into our facilities so that we can five, 10, 20 X our output with the same type of machinery in a couple of years.”
Vulcan Elements closed its Series A term sheets in four weeks
“We were able to go from initial conversations to sign term sheets in about four weeks.”
Vulcan co-developed the first 21st-century US magnet-making equipment
“So what we had to do is we had to actually co-develop some of the first pieces of magnet making equipment in the United States in the 21st century.”
Maslin: Vulcan co-founder opened one of first US magnetics labs in 20 years
“My co-founder, he's a PhD in electrical engineering with a focus on magnetics. He opened one of the first rare with magnetic slabs in the United States in two decades. Down at the University of Central Florida.”
Maslin: Vulcan Elements will pick commercial manufacturing site within months
“So one thing that we're doing with this fresh set of capital is we're moving to commercial scale. We're completing a multi-state site search right now. We're gonna be making that determination here over the next couple of months.”
Appearances (1)
| Episode | Date | Speaking time |
|---|---|---|
| How The Rarest Company On Earth Raised $75M from Altimeter · Sourcery with Molly O'Shea | Aug 11, 2025 | 26m |