Brimstone
Brimstone produces decarbonized cement and supplementary cementitious materials from common rock.
Founded
2019Brimstone produces decarbonized cement and supplementary cementitious materials from common rock.
Brimstone replaces limestone feedstock with common silicate rock, eliminating the process carbon dioxide released by conventional cement chemistry. The same refining step co-produces supplementary cementitious materials and alumina, spreading cost across several valuable outputs.
Because its cement matches ordinary portland cement chemistry, customers can adopt it without changing construction practices or standards. The single-rock platform also opens a roadmap into aluminum, steel, magnesium, and titanium production.
Source: brimstone.com
Cement accounts for a large share of global industrial emissions, and buyers increasingly seek low-carbon cement and supplementary cementitious materials that meet existing standards. Federal industrial decarbonization funding and corporate offtake agreements signal durable demand for qualified supply.
Brimstone is positioned to serve that demand with a first plant underway and an Amazon offtake agreement for low-carbon cement. Scaling depends on plant execution, certification, and cost parity as capacity comes online.
Source: brimstone.com
Brimstone offers decarbonized ordinary portland cement and supplementary cementitious materials made from common rock through its Rock Refinery process. The first plant co-produces cement, supplementary cementitious materials, and alumina from one feedstock.
Customers receive drop-in materials that meet existing cement standards while cutting embodied carbon. The same platform is designed to extend later into aluminum, steel, magnesium, titanium, and other critical minerals.
Source: brimstone.com