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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.”

The rise of the carbon removal industry

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Southeast Asia needn’t take sides in US-China tech rivalry. It can learn from both, experts say

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July 8, 2025

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Southeast Asia needn't take sides in US-China tech rivalry. It can learn from both, experts say

A woman holds a cell phone featuring the DeepSeek logo, with the Nvidia logo displayed in the background.

Nurphoto | Nurphoto | Getty Images

As China and the U.S. compete in artificial intelligence, Southeast Asia should draw from the best of both countries while building its own technologies, panelists said at CNBC’s East Tech West 2025 conference on June 27 in Bangkok, Thailand.

Julian Gorman, head of Asia-Pacific at mobile network trade organization GSMA, said it would be a negative development if Southeast Asia was forced to choose between either superpower. 

“Southeast Asia is very dependent on both economies, both China and America. I think it’s pretty hard to consider that they would go one way or the other,” Gorman said. 

“It’s very important that we continue to focus on not fragmenting the technology, standardizing it, and working so that technology transcends geopolitics and ultimately is used for good,” he added. 

The spread of U.S. and Chinese AI companies into new global markets has been a big trend this year as both Beijing and Washington seek more global influence in advanced technologies. 

U.S. and China offerings

According to George Chen, managing director and co-chair of digital practice for The Asia Group, Southeast Asia had initially been leaning towards AI models from the U.S., such as those from Google and Microsoft. 

However, the emergence of China’s DeepSeek has propelled the popularity of the company’s models in Southeast Asia due to its low cost and open-source licensing, which can be used to build on and adapt models to regional priorities. 

Open-source generally refers to software in which the source code is made freely available, allowing anyone to view, modify and redistribute it. Large language model players in China have been leaning into this business model since DeepSeek’s debut. 

Previous panels at East Tech West have flagged open-source models as an important tool for regions outside of China and the U.S. to build their own sovereign AI capabilities.

Meanwhile, on the hardware side, the U.S. remains a leader in AI processors through chip giant Nvidia. While the U.S. has restricted China’s access to these chips, they remain on the market for Southeast Asia – which Chen suggested the region continue to take advantage of. 

However, Chen noted that there is a possibility that the AI landscape could change dramatically in a decade, with China being able to provide more affordable alternatives to Nvidia. 

“Don’t take a side easily and too quickly. Think about how to maximize your economic potential,” he suggested. 

GSMA’s Gorman pointed out that facing this “balancing act” between the superpowers is not new for Southeast Asia. For example, the region’s mobility industry heavily relies on Chinese tech manufacturing and hardware, as well as the U.S. in other areas such as telecommunications.

Southeast Asia’s edge

Though the U.S. and China are clearly ahead in building advanced AI models, Southeast Asia has its own edge in the global AI space, panelists said. 

“If you think about AI as a technology, eventually you need to apply it to a real product or service. That’s how people can use it,” said The Asia Group’s Chen.

The region has a strong app environment which offers “great potential,” he added. “The demographic is young, which means the potential for talent is always there, and R&D cost is relatively cheaper than other places.”

Cost considerations have already contributed to Malaysia’s growth as a global powerhouse in AI data centers and computing, particularly in the southern Johor region.

Still, Southeast Asia should aim to bring in companies with advanced capabilities that domestic industries can learn from and benefit from – a strategy that China employed to catch up to the West in advanced technologies, said Chen.

Leader in AI regulation? 

According to GSMA’s Gorman, Southeast Asia can serve as a neutral ground between China and the U.S., where the two sides can come together and engage in high-level dialogues on how to apply AI responsibly.  

Southeast Asia can also play a proactive role in AI regulation itself, he said, citing recent examples of regulatory leadership from the region, such as Singapore’s Shared Responsibility Framework for tackling international scams and fraud. 

So far, there have been few global regulations on AI. While the EU has adopted a policy, the U.S. and ASEAN countries have yet to follow suit. 

Chen added that the region will need to band together and adopt common frameworks to gain a more prominent seat at the table of global AI development and regulation. 

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Tech founders call on Sequoia Capital to denounce VC Shaun Maguire’s Mamdani comments

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15 hours ago

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July 7, 2025

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Tech founders call on Sequoia Capital to denounce VC Shaun Maguire's Mamdani comments

Almost 600 people have signed an open letter to leaders at venture firm Sequoia Capital after one of its partners, Shaun Maguire, posted what the group described as a “deliberate, inflammatory attack” against the Muslim Democratic mayoral candidate in New York City.

Maguire, a vocal supporter of President Donald Trump, posted on X over the weekend that Zohran Mamdani, who won the Democratic primary last month, “comes from a culture that lies about everything” and is out to advance “his Islamist agenda.”

The post had 5.3 million views as of Monday afternoon. Maguire, whose investments include Elon Musk’s SpaceX and X as well as artificial intelligence startup Safe Superintelligence, also published a video on X explaining the remark.

Those signing the letter are asking Sequoia to condemn Maguire’s comments and apologize to Mamdani and Muslim founders. They also want the firm to authorize an independent investigation of Maguire’s behavior in the past two years and post “a zero-tolerance policy on hate speech and religious bigotry.”

They are asking the firm for a public response by July 14, or “we will proceed with broader public disclosure, media outreach and mobilizing our networks to ensure accountability,” the letter says.

Sequoia declined to comment. Maguire didn’t respond to a request for comment, but wrote in a post about the letter on Wednesday that, “You can try everything you want to silence me, but it will just embolden me.”

Among the signees are Mudassir Sheikha, CEO of ride-hailing service Careem, and Amr Awadallah, CEO of AI startup Vectara. Also on the list is Abubakar Abid, who works in machine learning Hugging Face, which is backed by Sequoia, and Ahmed Sabbah, CEO of Telda, a financial technology startup that Sequoia first invested in four years ago.

At least three founders of startups that have gone through startup accelerator program Y Combinator added their names to the letter.

Sequoia as a firm is no stranger to politics. Doug Leone, who led the firm until 2022 and remains a partner, is a longtime Republican donor, who supported Trump in the 2024 election. Following Trump’s victory in November, Leone posted on X, “To all Trump voters:  you no longer have to hide in the shadows…..you’re the majority!!”

By contrast, Leone’s predecessor, Mike Moritz, is a Democratic megadonor, who criticized Trump and, in August, slammed his colleagues in the tech industry for lining up behind the Republican nominee. In a Financial Times opinion piece, Moritz wrote Trump’s tech supporters were “making a big mistake.”

“I doubt whether any of them would want him as part of an investment syndicate that they organised,” wrote Moritz, who stepped down from Sequoia in 2023, over a decade after giving up a management role at the firm. “Why then do they dismiss his recent criminal conviction as nothing more than a politically inspired witch-hunt over a simple book-keeping error?”

Neither Leone nor Moritz returned messages seeking comment.

Roelof Botha, Sequoia’s current lead partner, has taken a more neutral stance. Botha said at an event last July that Sequoia as a partnership doesn’t “take a political point of view,” adding that he’s “not a registered member of either party.” Boelof said he’s “proud of the fact that we’ve enabled many of our partners to express their respected individual views along the way, and given them that freedom.”

Maguire has long been open with his political views. He said on X last year that he had “just donated $300k to President Trump.”

Mamdani, a self-described democratic socialist, has gained the ire of many people in tech and in the business community more broadly since defeating former New York Gov. Andrew Cuomo in the June primary.

— CNBC’s Ari Levy contributed to this report.

WATCH: SpaceX valuation is maybe even conservative, says Sequoia’s Shaun Maguire

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Samsung expects second-quarter profits to more than halve as it struggles to capture AI demand

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15 hours ago

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July 7, 2025

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Samsung expects second-quarter profits to more than halve as it struggles to capture AI demand

Samsung signage during the Nvidia GPU Technology Conference (GTC) in San Jose, California, US, on Thursday, March 20, 2025.

David Paul Morris | Bloomberg | Getty Images

South Korea’s Samsung Electronics on Tuesday forecast a 56% fall in profits for the second as the company struggles to capture demand from artificial intelligence chip leader Nvidia. 

The memory chip and smartphone maker said in its guidance that operating profit for the quarter ending June was projected to be around 4.6 trillion won, down from 10.44 trillion Korean won year over year.

The figure is a deeper plunge compared to smart estimates from LSEG, which are weighted toward forecasts from analysts who are more consistently accurate.

According to the smart estimates, Samsung was expected to post an operating profit of 6.26 trillion won ($4.57 billion) for the quarter. Meanwhile, Samsung projected its revenue to hit 74 trillion won, falling short of LSEG smart estimates of 75.55 trillion won.

Samsung is a leading player in the global smartphone market and is also one of the world’s largest makers of memory chips, which are utilized in devices such as laptops and servers.

However, the company has been falling behind competitors like SK Hynix and Micron in high-bandwidth memory chips — an advanced type of memory that is being deployed in AI chips.

“The disappointing earnings are due to ongoing operating losses in the foundry business, while the upside in high-margin HBM business remains muted this quarter,” MS Hwang, Research Director at Counterpoint Research, said about the earnings guidance.

SK Hynix, the leader in HBM, has secured a position as Nvidia’s key supplier. While Samsung has reportedly been working to get the latest version of its HBM chips certified by Nvidia, a report from a local outlet suggests these plans have been pushed back to at least September.

The company did not respond to a request for comment on the status of its deals with Nvidia.

Ray Wang, Research Director of Semiconductors, Supply Chain and Emerging Technology at Futurum Group told CNBC that it is clear that Samsung has yet to pass Nvidia’s qualification for its most advanced HBM.

“Given that Nvidia accounts for roughly 70% of global HBM demand, the delay meaningfully caps near-term upside,” Wang said. He noted that while Samsung has secured some HBM supply for AI processors from AMD, this win is unlikely to contribute to second-quarter results due to the timing of production ramps.

Meanwhile, Samsung’s chip foundry business continues to face weak orders and serious competition from Taiwan Semiconductor Manufacturing Company, Wang added.

Reuters reported in September that Samsung had instructed its subsidiaries worldwide to cut 30% of staff in some divisions, citing sources familiar with the matter.

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