Carbon Mineralization in Construction Materials

Permanently store captured CO2 by mineralizing it into concrete and other construction materials. The CO2 reacts with calcium and magnesium compounds and becomes rock — permanently sequestered. Neustark, a Swiss ETH spin-off, operates 19+ plants across Switzerland, Austria, Liechtenstein, and Germany doing exactly this, with over 2,500 tonnes of CO2 removed to date and a target of 1 million tonnes by 2030. The resulting concrete performs equivalently to conventional products, creating a circular economy link between carbon removal and construction.