Brimstone

“So just this last July, we got a third party certification that we, the cement that we made passed the existing standard for ordinary Portland cement showing that it's chemically and physically identical to the conventionally produced product.”

“So the process is patented and the utilization of this rock to produce Portland cement is also patented. So another company would need to license or joint venture with us in order to make cement via this process.”

“It produces a magnesium-based waste product, and that magnesium-based waste product will passively sequester CO₂. Just sitting on the ground, it will react with CO₂ in the air to permanently sequester CO₂.”

“The beauty of our process is that actually could be substantially lower carbon or even carbon negative under a wide range of energy sources, including the use of those dirtier fuels.”

“One metric that was really interesting to me was the dollars invested in decarbonizing the product per ton of greenhouse gas emissions. And I couldn't really find anything lower than cement.”

“In the modern economy, we think that will be lower cost at scale.”

“The calcium silicate rock, A, does not contain any CO two. So we eliminate 60% of the emissions just by using a different rock.”

“So in the next five years, we will be working on building a first commercial plant. I think it's probably unlikely that it's, you know, fully operational.”