Prometheus Materials

Prometheus Materials develops ProZERO, a carbon-negative cement replacement technology that uses microalgae grown in raceway ponds to create a supplemental blend replacing a portion of traditional cement in a 1:1 ratio. By mimicking nature's formation of seashells and coral reefs, the technology captures carbon through photosynthesis, avoids carbon-intensive limestone mining and kiln processes, and stores carbon indefinitely within building products. ProZERO achieves up to 45% reduction in global warming potential compared to conventional cement mixes while maintaining comparable structural properties, serving ready-mix concrete producers, block manufacturers, and construction material suppliers.