Venture Capital: Decarbonized Cement Startup Sublime Systems Nabs $40M

Sublime’s breakthrough process produces a drop-in replacement for ready-mix, delivering the same performance, without the environmental cost.

Sublime Systems, a developer of technology for decarbonized cement production, announced the closure of a $40 million Series A funding round led by Lowercarbon Capital and featuring participation from existing investors like The Engine and Energy Impact Partners. Siam Cement Group, the largest cement producer in Southeast Asia, is also joining as a strategic investor.

The company will use the funds to increase production at its pilot plant, expand its team, conduct product testing, and secure commitments from new customers.  (Businesswire)

Sublime’s proprietary process replaces traditional kilns with an electrolyzer that produces cement at ambient temperature, avoiding both the use of fossil fuels and the release of CO2 from limestone.

This makes Sublime the first company to produce cement through a process that eliminates emissions from both limestone and fossil fuels.

The company aims to address 8% of the world’s carbon emissions through their low-carbon cement.

“Low-carbon cement is critical to build a decarbonized economy,” said Leah Ellis, Co-Founder and CEO of Sublime, in a statement. “We have successfully demonstrated the viability and scalability of our approach and we are able to produce cement with the same or better strength, slump, and durability than today’s portland cement. The support of our talented team and capital from our investors will enable us to operate our pilot facility, secure advance offtake agreements and work toward producing our low-carbon cement at scale.”

“Cement is quite literally the foundation of human civilization, but making it generates more pollution than any other industry,” said Clay Dumas, General Partner at Lowercarbon Capital. “While many teams are chipping away at the problem, Sublime has developed a drop-in solution for traditional cement that’s just as strong, durable, and affordable and with zero-emissions.”

Sublime was spun-out of the Massachusetts Institute of Technology (MIT) in 2020.

Related Story:  UK Startup Carbon Re Uses AI To Decarbonize The Biggest GHG Emitters  

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