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Oakland, CA, USA

Brimstone is on a mission to decarbonize the cement industry. The $1 trillion cement market is responsible for 7.5% of carbon emissions annually, with a greenhouse gas impact just behind cars. Founded in 2019, Brimstone developed a breakthrough carbon-negative process to produce the same ordinary portland cement and supplementary cementitious materials used today. These materials have the same quality and performance builders have trusted for over 150 years — now with a positive climate impact.

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