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Snapshot
Tadeu Carneiro is the Chairman and CEO of Boston Metal, a company at the forefront of revolutionizing steel production through sustainable methods. With nearly 50 years of experience in the metals industry, he leads efforts to decarbonize steel manufacturing, a sector responsible for approximately 8% of global CO₂ emissions.
Early Life and Education
Born and raised in Brazil, Carneiro developed an early interest in metallurgy and materials science. He pursued his education in the United States, earning a degree in Metallurgical Engineering. His academic background laid the foundation for a career dedicated to advancing sustainable practices in the metals industry.
Career
Before joining Boston Metal in 2017, Carneiro served as the CEO of CBMM, a leading producer of niobium products. His leadership there was marked by significant growth and innovation. At Boston Metal, he has been instrumental in developing and commercializing the Molten Oxide Electrolysis (MOE) technology, which uses clean electricity to produce steel without emitting CO₂.
Sustainability Highlights and Focus
Under Carneiro’s leadership, Boston Metal has achieved several milestones in sustainable steel production:
Development of MOE Technology: The company has advanced the MOE process, a method that eliminates the need for fossil fuels in steel production, significantly reducing carbon emissions.
Scaling Operations: In 2022, Boston Metal completed the first test of its semi-industrial 25,000-amp MOE cell, a key step in commercializing the technology.
Recognition and Awards: In 2023, Carneiro was named to the Boston Globe’s Tech Power Players 50, highlighting his impact on the local business community and the broader climate tech industry.
Looking Ahead
Carneiro envisions a future where steel production is fully decarbonized, contributing to global efforts against climate change. He continues to lead Boston Metal in scaling the MOE technology, aiming to license it commercially by 2026. His commitment to innovation and sustainability positions him as a key figure in transforming the steel industry toward a more sustainable future.
For more insights into Tadeu Carneiro’s vision for sustainable steel production, you can watch his interview below:

Dr. Alexander Tabibi is an entrepreneur, investor, and advocate for sustainable innovation with a deep commitment to leveraging technology for environmental and social good. As a thought leader at the intersection of business and sustainability, Dr. Tabibi brings a strategic vision to Green.org, helping guide its mission to inspire global climate awareness and actionable change.
With a background in both medicine and business, Dr. Tabibi combines analytical rigor with entrepreneurial insight.
