Brimstone

Brimstone is a U.S.-based industrial technology company founded in 2019 that addresses the carbon emissions of cement and steel manufacturing. Traditional cement production accounts for approximately 8% of global CO2 emissions, a problem Brimstone seeks to mitigate through its proprietary Rock Refinery® process. This process co-produces cement, steel, aluminum, magnesium, titanium, and other critical minerals from a single, globally abundant rock.

The company operates in the mineral processing, carbon capture and utilization, materials science, and process engineering sectors. Its core technology, the Rock Refinery®, is designed to utilize 100% of the feed rock and eliminate tailings, a significant environmental consideration in mining and mineral processing. The company's work sits at the intersection of construction materials, mining, and heavy industry, focusing on domestic U.S. operations.