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let's build
A climate positive world is built
on a carbon negative foundation
introducing the world's first carbon negative portland cement
We can transform the cement industry from climate problem to climate solution.
Cement is one of the most used materials on the planet. It's also a huge source of global emissions. Over 4 billion tons of cement is produced each year—a number only expected to grow. The problem is cement production accounts for 7.5% of global CO2 emissions, which is nearly the amount of emissions produced by all of the cars on the road. In fact, if cement were a country it would be the third largest emitter in the world. We're here to change this with our breakthrough process that makes carbon negative cement. It's the exact same material builders have relied on for over a hundred years, now with a positive climate impact.
carbon negative
The Brimstone Process™ is carbon negative, removing CO2 from the air.
low cost
The Brimstone Process™ is cost competitive at scale.
zero trade-offs
The Brimstone Process™ makes cement that is chemically and physically identical to conventional portland cement.
we are a climate tech company working on the most impactful solutions for the industrial sector
In order to make the most impact for the climate, entire industries need to transform—fast. That is no easy task, but that's why we started Brimstone. We're a team of scientists, problem-solvers, engineers, innovators and builders on a mission to solve the hardest climate problems in an economically competitive way in order to accelerate the evolution of critical industries for the climate era. We're starting with cement.
proof-of-concept
Completed
bench-scale validation
Completed
pilot plant
In progress
first commercial plant
Securing advance commitments
commercialization
Coming soon
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