Paebbl Launches Rebond 300: World's First Carbon-Negative Construction Material Verified at -149 kg CO2 per Tonne

Dutch startup Paebbl has launched Rebond 300, what it calls the world's first carbon-negative construction material. The product is a Supplementary Cementitious Material (SCM) with an Environmental Product Declaration-verified carbon footprint of minus 149 kg CO2 per tonne. That means every tonne of Rebond 300 removes more CO2 than it emits during production, turning concrete structures into permanent carbon storage sites. The material uses Paebbl's accelerated mineralization technology, geomimicry, which converts captured CO2 into a stable mineral powder. Paebbl has already integrated its products into cement and concrete mixes replacing CEM I through CEM III/B. The company is now partnering on projects including CO2-storing data centers, public infrastructure, and residential buildings. Rebond 300 also generates verified carbon dioxide removal credits for organizations pursuing net-zero targets.