Microsoft and ArcelorMittal back MIT spinout trying to green the $1.6 trillion steel industry
Removing molten iron from a pilot scale facility at the Boston Metal facilities in Woburn, Mass.
Photo courtesy Boston Metal
The $1.6 trillion steel industry is the backbone of the modern world. It’s also a significant contributor to global warming, representing between 7% and 9% of global carbon dioxide emissions, according to the World Steel Association.
That’s why massive global businesses, including international steel giant ArcelorMittal and tech stalwart Microsoft, are investing in Boston Metal, a company that spun out of Massachusetts Institute of Technology and developed a new way of making clean steel.
“There is no economy, there is no infrastructure without steel,” Boston Metal CEO Tadeu Carneiro told CNBC in a video call on Wednesday. So when it comes to decarbonizing industry to fight climate change, “it’s a big piece of the puzzle. I don’t think this is obvious to everybody,” Carneiro said.
In 2013, MIT professors Donald Sadoway and Antoine Allanore published a paper in the journal Nature with lab results proving that it is possible to generate steel without releasing carbon dioxide emissions. The same year they launched a company, Boston Electrometallurgical Corp., to scale and commercialize that technology.
In 2017, Carneiro joined the company as a CEO. He is a veteran of 40 years career in the steel industry, mostly at Brazilian metals giant CBMM. In 2018, Boston Metal raised its first round of funding, $20 million, in a round led by Breakthrough Energy Ventures, the climate investing firm founded by Microsoft co-founder Bill Gates.
Gates has for years emphasized the need to think about decarbonizing the manufacturing sector. Transportation gets a whole lot of attention but is responsible for only 16% of global emissions, where manufacturing generates 31%, according to Gates’ book, “How to Avoid a Climate Disaster.”
“Whenever I hear an idea for what we can do to keep global warming in check — whether it’s over a conference table or a cheeseburger — I always ask this question: ‘What’s your plan for steel?'” Gates wrote on his own blog in 2019.
On Friday, Boston Metal announced it has raised $120 million Series C round, led by multinational steel giant ArcelorMittal, with funding from Microsoft’s Climate Innovation Fund as well.
With the funding, Boston Metal will ramp up production of green steel at its pilot facility on Woburn, Massachusetts, and support the construction of its Brazilian subsidiary, Boston Metal do Brasil, where the company will manufacture various metals. It plans to begin construction of a demonstration steel plant in 2024 and a commercial sized plant in 2026, Carneiro told CNBC.
The Boston Metal team.
Photo courtesy Boston Metal
The cost of carbon for ArcelorMittal
For ArcelorMittal, making steel without greenhouse gas emissions is not only a responsibility, but also a business necessity according to Irina Gorbounova, a vice president and the Head of XCarb Innovation Fund at ArcelorMittal.
“Our customers are asking for it, our investors expect us to transition and our employees — and our future workforce — want to work for a company that is part of the solution and not part of the world’s climate problem,” Gorbounova told CNBC.
“Increasingly, we are also seeing a cost of carbon,” Gorbounova told CNBC. In Europe, the Emissions Trading System, or ETS, already puts a price on carbon emissions, Gorbounova told CNBC.
“The EU has been at the forefront of climate policy, but it’s reasonable to expect other regions to follow. So, there is a business case for us to decarbonize as well,” Gorbounova told CNBC. “Zero or near-zero carbon emissions steel will become a reality. The only question is how quickly we can make that journey happen. If steel companies don’t decarbonize, they will not stand the test of time.”
Ironically, steel is a primary component ingredient in many of the technologies being constructed to decarbonize, such as wind toward and electric vehicles, Gorbounova said.
Microsoft does not build cars or make steel, but it is trying to meet its own aggressive climate goals, which include being carbon negative by 2030 and removing all of the company’s historic carbon emissions since the company was founded in 1975.
Boston Metal CEO Tadeu Carneiro worked in the steel industry for decades before coming on to lead the MIT spin out.
Photo courtesy Boston Metal
How does Boston Metal do it?
Traditionally, the first step in steel production is to combine iron ore or iron oxide, which is mined out of the ground, with coal in a very hot blast furnace. That process generates significant CO2 emissions.
Scrap recycling is also a key part of the global industry, accounting for 30% of steel production (70%in the United States), and has a “much smaller” carbon footprint, Carneiro said.
Boston Metal’s technology, Molten Oxide Electrolysis, passes electricity through the iron oxide mixed with what Carneiro calls a “soup of other oxides” to make iron and oxygen. Oxides are chemical compounds that contain at least one oxygen atom, and Boston’s process includes common oxides like alumina, silica, calcium and magnesium.
“There’s no carbon involved” in the process of making the iron from this method, Carneiro said.
That said, heating this soup to the required 1,600 degrees Celsius requires significant electrical energy — making one million tons of steel per year will require 500 megawatts of baseload clean electricity, or about half the electricity necessary to power a midsize city. “The availability of electricity will dictate how fast the process will be implemented,” Carneiro said.
The electricity has to be clean as well, or it defeats the entire purpose.
“We believe in the future, we will have abundant and reliable and green and cheap electricity in order to use this process and manufacture green steel,” Carniero said.
There are other processes being developed to make clean steel with hydrogen, but they require very pure iron oxide, and only about 4% of the iron ore that is commercialized is suitable, Carniero said.
Boston Metal will eventually license its technology to steel companies, not be a steel manufacturer itself.
“Every steelmaking company is in contact with us to understand our progress and when we will become commercial,” Carneiro told CNBC. “They all making pledges to be carbon-neutral by 2050. And they don’t really have a solution right now. So, they really need a solution for large scale, and our technology is the only one that can scale up to this billions of tons of capacity.”
Tik Tok creators gather before a press conference to voice their opposition to the “Protecting Americans from Foreign Adversary Controlled Applications Act,” pending crackdown legislation on TikTok in the House of Representatives, on Capitol Hill in Washington, U.S., March 12, 2024.
Craig Hudson | Reuters
The Supreme Court on Friday will hear oral arguments in the case involving the future of TikTok in the U.S., which could ban the popular app as soon as next week.
The justices will consider whether the Protecting Americans from Foreign Adversary Controlled Applications Act, the law that targets TikTok’s ban and imposes harsh civil penalties for app “entities” that continue to carry the service after Jan.19, violates the U.S. Constitution’s free speech protections.
It’s unclear when the court will hand down a decision, and if China’s ByteDance continues to refuse to divest TikTok to an American company, it faces a complete ban nationwide.
What will change about the user experience?
The roughly 115 million U.S. TikTok monthly active users could face a range of scenarios depending on when the Supreme Court hands down a decision.
If no word comes before the law takes effect on Jan. 19 and the ban goes through, it’s possible that users would still be able to post or engage with the app if they already have it downloaded. However, those users would likely be unable to update or redownload the app after that date, multiple legal experts said.
Thousands of short-form video creators who generate income from TikTok through ad revenue, paid partnerships, merchandise and more will likely need to transition their businesses to other platforms, like YouTube or Instagram.
“Shutting down TikTok, even for a single day, would be a big deal, not just for people who create content on TikTok, but everyone who shares or views content,” said George Wang, a staff attorney at the Knight First Amendment Institute who helped write the institute’s amicus briefs on the case.
“It sets a really dangerous precedent for how we regulate speech online,” Wang said.
Who supports and opposes the ban?
Dozens of high-profile amicus briefs from organizations, members of Congress and President-elect Donald Trump were filed supporting both the government and ByteDance.
The government, led by Attorney General Merrick Garland, alleges that until ByteDance divests TikTok, the app remains a “powerful tool for espionage” and a “potent weapon for covert influence operations.”
Trump’s brief did not voice support for either side, but it did ask the court to oppose banning the platform and allow him to find a political resolution that allows the service to continue while addressing national security concerns.
The short-form video app played a notable role in both Trump and Democratic nominee Kamala Harris’ presidential campaigns in 2024, and it’s one of the most common news sources for younger voters.
In a September Truth Social post, Trump wrote in all caps Americans who want to save TikTok should vote for him. The post was quoted in his amicus brief.
What comes next?
It’s unclear when the Supreme Court will issue its ruling, but the case’s expedited hearing has some predicting that the court could issue a quick ruling.
The case will have “enormous implications” since TikTok’s user base in the U.S. is so large, said Erwin Chemerinsky, dean of Berkeley Law.
“It’s unprecedented for the government to prohibit platforms for speech, especially one so many people use,” Chemerinsky said. “Ultimately, this is a tension between free speech issues on the one hand and claims of national security on the other.”
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