Deal expands access to hot potassium carbonate (HPC) carbon capture for industrial decarbonization
Part of Holcim’s strategy to commercialize near-zero cement at scale
Investment reflects venture-led innovation across hard-to-abate sectors
Holcim has taken a strategic stake in Capsol Technologies, a Norwegian developer of post-combustion carbon capture solutions, in a move that places industrial carbon removal at the center of the construction sector’s low-carbon transition. The deal gives Holcim access to Capsol’s hot potassium carbonate (HPC) system, a mature chemical absorption process with potential to cut cement’s process emissions, a long-standing bottleneck in global climate targets.
Cement’s Process Emissions Enter the Venture Arena
Cement manufacturing accounts for around seven percent of global CO2 emissions, driven largely by calcination rather than fuel combustion. This makes the sector one of the most challenging to decarbonize at pace. Carbon capture, utilization, and storage (CCUS) has become a priority pathway in Europe and the United States, supported by industrial carbon contracts, tax incentives, and demand for low-carbon construction materials from real-estate developers and public infrastructure buyers.
Holcim’s investment folds into its innovation ecosystem via Holcim MAQER Ventures, which screens more than 500 startups annually. The firm has disclosed 19 venture-stage climate tech investments to date, spanning CCUS, low-carbon materials, green logistics, and digital optimization. The bet on HPC technology widens the firm’s technical portfolio beyond pilot-scale sorbent systems and oxy-fuel retrofits.
Holcim’s Head of Operational Excellence, Ram Muthu, said: “By combining Holcim’s expertise in cement manufacturing and on-site carbon capture with Capsol’s safe and efficient technology, we have an additional lever to advance decarbonization and drive profitable growth. Through this strategic investment, we are one step closer to producing near-zero cement at scale to meet growing customer demand.”
Capsol Positions for Industrial Scale-Up
Capsol supplies post-combustion HPC carbon capture systems that integrate heat recovery to improve net energy performance. HPC has been deployed for decades in petrochemical and syngas applications, but the cement sector’s flue gas chemistry and scale require new engineering and integration pathways. By working directly with a major cement producer, Capsol gains access to operational testbeds and commercialization channels.
Capsol CEO Wendy Lam said: “Holcim is a leading provider of sustainable construction solutions and one of the largest cement producers in the world. They have bold ambitions of producing near-zero cement at scale for customers. Capsol wants to be part of realizing this ambition. Today, we are proud to share how we are deepening our collaboration, following a CapsolGo demonstration project at Holcim’s Dotternhausen plant in Germany in 2025. We look forward to further developing our relationship with Holcim and innovating together for the future.”
The Dotternhausen demonstration is positioned as a technical bridge between pilot validation and commercial-scale deployment. Demonstration assets have become key mechanisms for derisking CCUS projects for lenders, insurers, and off-takers, especially where carbon contracts for difference, tax credits, or emissions performance standards interact.
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Finance and Policy Context for CCUS in Hard-to-Abate Sectors
Across Europe, CCUS momentum is shifting from policy concept to infrastructure buildout. Norway, Denmark, and the Netherlands are developing cross-border CO2 transport and storage corridors, while Germany is preparing legislation to enable domestic sequestration routes. On the demand side, green procurement and material standards are emerging for low-carbon cement, steel, and chemicals.
For investors, CCUS offers a pathway to align industrial incumbents with corporate climate commitments and taxonomy-aligned capex. The sector is capital intensive, but venture capital participation is rising as process intensification, modularization, and solvent economics improve. Holcim’s approach is a hybrid: direct project development combined with venture exposure to technology suppliers.
What C-Suite and Investors Will Watch
Executives will track three variables: capture efficiency, cost per ton, and integration risk. Capture rates above 90 percent have become a reference point for near-zero cement claims, but levelized cost outcomes depend on heat integration, emissions factors, and storage access. Digital monitoring, standardization, and insurance products are expected to mature as demonstration plants scale.
For institutional investors and climate funds, the Holcim-Capsol relationship shows how industrial decarbonization is moving from corporate climate strategies into structured investment and procurement decisions. The venture channel adds speed and optionality in a sector often constrained by long asset lifecycles.
Global Relevance and Outlook
Industrial CCUS remains pivotal to 1.5C-aligned scenarios and net-zero pathways, with most models assuming substantial abatement from cement by mid-century. Asia, Europe, and North America are developing the earliest clusters, while emerging markets with major construction pipelines are expected to follow as storage and policy frameworks mature.
The Holcim-Capsol deal reflects a broader trend: decarbonization in hard-to-abate sectors is shifting from theory to execution, backed by venture capital, industrial partnerships, and government incentives. How quickly these systems mature will influence global infrastructure, real-estate, and emissions trajectories over the next decade.
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