We turn CO2 into value.
Our Mission
Co-reactive is on a mission to turn CO2 into value by pioneering a breakthrough carbon mineralization technology that transforms CO2 into high-performance Supplementary Cementitious Materials (SCM) to enhance the strength and durability of cement-based construction materials, driving carbon neutrality of high-volume construction sector.
Our Vision
We strive for a world in which construction is carbon neutral through carbon negative materials.
Our Product

The Future of Low-Carbon Cement & Concrete
CO-SCM is a high-performance, carbon-negative SCM engineered to maximize pozzolanic reactivity and enhance cementitious properties. Unlike traditional SCMs, CO-SCM stores CO₂ by mineralizing it into stable carbonates within its raw materials, effectively making it a permanent carbon sink. At the same time, it delivers exceptional strength and durability, making it an ideal choice for low-carbon construction.
Applications
of CO-SCM
CO-SCM seamlessly integrates into a wide range of cement and concrete applications, offering superior performance, sustainability, and cost benefits across multiple industries.
CO-SCM:
A Game-Changer for Sustainable Construction
A Carbon-Negative (carbon-storing) Supplementary Cementitious Material (SCM) for Sustainable Construction
Why Choose
CO-SCM?

We understand that sustainability matters—but so does performance and cost. CO-SCM is designed to provide all three.
Lower CO₂ emissions without changing production processes.
Superior strength and durability, thanks to its high amorphous silica content.
Compliance with sustainability regulations and corporate climate goals.
Cost-effective formulation, enabling competitive pricing in a rapidly evolving market.
Product
CO-SCM: A new generation of low carbon Supplementary Cementitious Material (SCM) for sustainable construction.
Features
The high puzzolanic reactivity of our CO-SCM enables clinker efficient cement and concret forumlars. Strength Acticity Index over 100 according to EN 450-1
Benefits
The price of CO-SCM is competitive to the conventional SCMs, is sustainable and available at scale, directly at your site
Sustainable
In each ton of our CO-SCM we have stored 330kg of CO2, making your constuction material carbon negative
Turns Costsinto Profit
- Drastically reduces CO₂ costs & certificates (ETS, CBAM)
- Meets ESG criteria & increases market attractiveness
- Long-term economic benefits through green building material
- Complementary to traditional SCM
Turn Uncertainty into Trust
- Technically validated and certified
- Materials meet all norms & standards
- Collaboration with leading industry partners
- Locally and sustainably available materials
Our Technology

Our journey begins with selecting the perfect feedstock materials. We use magnesium and calcium silicate minerals, like olivine, which are abundant and already mined at scale. Additionally, we upcycle secondary minerals from metallurgical processes, giving them a new life through our proprietary carbon mineralization process. These materials are finely milled into a powder, ready to undergo carbonation.

The required CO₂ for our process can come from various CO₂ sources, such as cement plants, power generation, waste combustion, biogas plants, Direct Air Capture, or pipelines. We can set up our site directly next to source point emissions to minimize the costs of CO₂ transportation.


The powder is then suspended in water before it enters our tubular reactor system. The reactor operates under high pressure and temperature to accelerate the transformation of the feedstock powder into rock-solid carbonates and amorphous silica. At the exit of the reactor, the feedstock is completely transformed into high-performance CO-SCM.


After the liquid suspension has passed the reactor the newly formed CO-SCM material is seperated from the water using a filter press. In a rotary dryer the residual moisture evapurates and the CO-SCM exits as a fine powder ready to be used.

CO-SCM seamlessly integrates into a wide range of cement and concrete applications, offering superior performance, sustainability, and cost benefits across multiple industries. It can be delivered in big bags or silos.
Our journey begins with selecting the perfect feedstock materials. We use magnesium and calcium silicate minerals, like olivine, which are abundant and already mined at scale. Additionally, we upcycle secondary minerals from metallurgical processes, giving them a new life through our proprietary carbon mineralization process. These materials are finely milled into a powder, ready to undergo carbonation.

The required CO₂ for our process can come from various CO₂ sources, such as cement plants, power generation, waste combustion, biogas plants, Direct Air Capture, or pipelines. We can set up our site directly next to source point emissions to minimize the costs of CO₂ transportation.

The powder is then suspended in water before it enters our tubular reactor system. The reactor operates under high pressure and temperature to accelerate the transformation of the feedstock powder into rock-solid carbonates and amorphous silica. At the exit of the reactor, the feedstock is completely transformed into high-performance CO-SCM.


After the liquid suspension has passed the reactor the newly formed CO-SCM material is seperated from the water using a filter press. In a rotary dryer the residual moisture evapurates and the CO-SCM exits as a fine powder ready to be used.


CO-SCM seamlessly integrates into a wide range of cement and concrete applications, offering superior performance, sustainability, and cost benefits across multiple industries. It can be delivered in big bags or silos.

About us

Our Story
Co-reactive was founded 2024 based on several years of research of our Co-founder Andreas Bremen at RWTH Aachen. After his PhD, he partnered up with his fellow student Orlando Kleineberg and Willi Peter with the vision to decarbonize the construction industry at scale. With a complimentary skillset of research, industrial experience and commercialization we are destined to lead the future of low-carbon cement & concrete.
Our Partners


















Turn Passioninto your career
We are seeking professionals to become part of our mission.
Be a key part of our team driving CO2 mineralization for lasting industrial carbon footprint reduction. If you are an expert in materials science, engineering, chemistry, or business, reach out today!
Founder's Associate
Be a key part of our team driving CO2 mineralization for lasting industrial carbon footprint reduction. If you are an expert in materials science, engineering, chemistry, or business, reach out today!
Working student
Be a key part of our team driving CO2 mineralization for lasting industrial carbon footprint reduction. If you are an expert in materials science, engineering, chemistry, or business, reach out today!