Boston Metal aims to unlock commercial steel applications by 2029
Tadeu Carneiro · Boston Metal’s path to carbon-free steel · Nov 7, 2025 · at 16:45
Tadeu Carneiro is the CEO of Boston Metal. He outlines the commercialization timeline for their molten oxide electrolysis technology to decarbonize steel production.
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“If you know, if we don't find non-dilutive funds earlier, that cell will be running in twenty-twenty-eight, which will then unlock the commercial application of the technology for steel in 29, twenty-thirty.”
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More from Tadeu Carneiro
Carneiro: Boston Metal is developing zero-emission electrolytic steelmaking technology
“Well, we are developing a technology that will eliminate all these emissions. No carbon involved at all as a reducing agent, so we use electricity instead, and therefore if the electricity is clean, you take care of scope one and scope two in manufacturing ste…”
Carneiro: Boston Metal critical metals process cuts carbon footprint by 90%
“Ah, it is at the same time that, that we will have a carbon footprint that at one 10th of the incumbents today.”
Carneiro: Boston Metal produces 2x to 3x more metal per ore volume
“The same amount of ore you can produce twice or three times the amount of metal because our process is more efficient.”
Boston Metal ran pilot cells with modular anodes over 30 days in 2024
“That milestone we reached in, ah, we delivered in, in twenty-twenty-four, ah, when we have five, five, six runs that last more than a month with, ah, the first generation of industrial modular anode in a single pilot cell that, that survived more than 30 days.”
Boston Metal cap table includes BHP, Vale, ArcelorMittal, Aramco, and Microsoft
“We have lots of giants in in our cup table today. So, you know, the largest mining company in the world, BHP, the largest supplier of iron ore, Vale from Brazil, the largest international steelmaking company, ArcelorMittal. Then you have Saudi Aramco, you have…”
Carneiro: Boston Metal could sign offtakes for 100% of critical metals output today
“If we wanted, we would have a hundred percent of the production signed in offtakes today, because this critical metals, ah, the tier one trading, trading companies in the world, they're all interested in them, and we are very well connected to them.”