
Sustainable building materials
Secure the reliable fossil-free CO₂ supply chain required to revolutionise your market
We provide building materials innovators with one of the world’s most sustainable sources of CO₂ to produce low-carbon and carbon-negative sustainable building materials at scale — from carbonated aggregates and calcites, to carbonated supplementary cementitious materials and cement binders.
Sustainable building materials need sustainable CO₂ sources
Pioneering sustainable construction materials via carbonation requires a reliable supply of sustainable carbon, often in remote locations. Fossil-based point-source CO₂ isn’t an option, and businesses depending solely on biogenic CO₂ sources are already feeling the sting of long-term supply challenges.
CO₂ supply control and certainty in any location
Our on-site, modular direct air capture solutions provide an on-demand supply of CO₂ directly where you need it — enabling building materials product sites that are self-sufficient on CO₂.

Guaranteed scalable supply
Get an independent, localised supply of fossil-free CO₂ that can grow with your business plans. Our compact DAC solutions integrate directly with your existing processes as either a complementary or standalone sustainable CO₂ supply you can directly control.
Price predictability
As a dedicated CO₂ source, our solutions are insulated from the price spikes that come with biogenic CO₂ and costs will continue to fall as we optimise our technology. They can also be run flexibly to maximise the use of cheap renewable power, optimising for the lowest possible OpEx.
Future-proof sustainability
Eliminate the emissions, costs, and admin tied to traditional CO₂ supply logistics. Our DAC offers a best-in-class life cycle analysis to deliver high carbon-negativity, unlocking premium low-carbon and carbon-negative sustainable construction materials and removal credits.
Simple operations
Swap multiple regional biogenic supply contracts for a single, universal one to scale with your business. Enjoy simple utilities requirements and low operations and maintenance effort, all without any complex byproducts.
World-leading expertise in DAC
We have the most diverse deployment portfolio of any DAC developer — with plants already in operation across multiple industrial applications, including sustainable building materials production.

In-the-field upgrades
Our customers benefit from the real-world data and learnings amassed from all of our real-world systems, enabling system optimisations for cost, energy, and performance across their plant’s lifetime.

Dedicated partnership
We work in lock-step with our customers’ unique needs as an extension of their team, providing ongoing services and support to ensure plants deliver their full potential.

Making sustainable building materials from air
Explore how O.C.O Technology is leveraging our modular on-site DAC plant to produce carbon-negative limestone to decarbonise essential building products, including bricks, concrete blocks, tiles, and slabs.

“We have biogenic sources of CO₂ already, but DAC CO₂ can further enhance our sustainability credentials. It can also provide the supply reliability that is critical to our business model.”

