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Mantel
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Developer of a molten-salt based carbon capture technology

Founded in 2022
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Company type Private Public ()
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Industry Group materials & chemicals

Sector carbon capture usage & storage (ccus)

TRL Range 4-6
TRL 1 Basic research
TRL 2 Technology formulation
TRL 3 Applied research
TRL 4 Small scale prototype
TRL 5 Large scale prototype
TRL 6 Prototype system
TRL 7 Demonstration system
TRL 8 First of a kind commercial system
TRL 9 Full commercial application
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Headquarters Cambridge, MA Cambridge, United States
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Updated by Cleantech Group on 03/26/2025

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10/04/2022
Breakthrough Energy Ventures Breakthrough Energy Ventures
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Confirmed by Breakthrough Energy Ventures
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Date Investors Type Amount
09/05/2024 BP Ventures BP Ventures , New Climate Ventures New Climate Ventures , Hartree Partners Hartree Partners , Arosa Ventures Arosa Ventures , Vale Ventures Vale Ventures , MCJ Collective MCJ Collective , Shell Ventures Shell Ventures , Eni Next Eni Next , Engine Ventures Engine Ventures , Newlab Newlab (10)
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Funding will be used to build a demonstration project at a paper mill that can capture 1,800 metric tons of emissions a year, around 10 times more than the half a ton a day captured in a laboratory setting.
 Series A $30,000,000
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