Sublime Systems gets $75M in investments from CRH and Holcim for True-Zero

“Low-carbon cement technology leader Sublime Systems is accelerating its mission of swift and massive impact on global CO 2 emissions through unprecedented collaborations with two of the largest building materials providers, CRH (CRH) and Holcim (HCMLY). The partnerships support near-term development and operations of Sublime’s first commercial manufacturing facility in Holyoke, Mass. with a corporate equity investment and a binding offtake reservation of the Sublime Cement produced there, while laying the foundation for a rapid expansion of full-scale manufacturing plants with Sublime’s technology once the Holyoke plant is complete. The historical process for manufacturing ordinary portland cement OPC , the most common type of cement used globally today, involves heating limestone, a mineral that is roughly half CO2 by weight, in kilns powered extensively by fossil fuels, running at about 1,450 degrees C. Founded in 2020, Sublime Systems is commercializing breakthrough, “true-zero” technology that avoids both mineral and fossil fuel emission sources. Its electrochemical process runs at near-ambient temperature and uses clean electricity and carbon-free inputs to produce reactive cementitious ingredients that are highly engineered for an optimally performing cement in concrete,” said the company in part.