Brimstone to Produce the World’s First Carbon-Negative Portland Cement

Brimstone makes Ordinary Portland Cement, chemically and physically identical to conventionally manufactured cement, but without releasing CO₂. At scale, Brimstone’s breakthrough will produce cement at or below market prices, solving the problems of both emissions and scarcity of raw materials, and without increasing cost or risk for customers. At scale, Brimstone’s process will be able to supply organizations and governments that want to construct new buildings or replace aging infrastructure but want to use tried and true building materials at an affordable price while also sequestering carbon.