Cemex Ventures has invested in Waste to Energy Advanced Solutions (WtEnergy), a startup focused on converting non-recyclable solid waste and biomass into clean energy, as part of efforts to support lower-carbon technologies in cement production.
The venture capital arm of Cemex said the funding will help expand WtEnergy’s technology, which generates low-carbon synthesis gas (syngas), clean hydrogen, and other bioproducts. These solutions are expected to aid the adoption of alternative energy sources across Cemex’s global clinker and cement manufacturing operations.
The investment represents a deepening relationship between the two companies. WtEnergy has already secured European Union funding to develop advanced waste-to-fuel conversion technology while working with Cemex. The startup is currently leading a €10 million project at Cemex’s Alcanar plant in Spain to convert biowaste into high-purity clean hydrogen.
Alfredo Carrato, investment manager at Cemex Ventures, said WtEnergy represents the type of solutions the company seeks to promote within its circular economy and clean energy strategy. “We are reinforcing our commitment to supporting startups that are redefining the industry’s energy future,” he stated.
The investment aligns with Cemex’s “Future in Action” programme, which targets net-zero CO₂ emissions. Alternative fuels with high biomass content have been identified as an important factor in achieving the company’s 2030 decarbonisation targets.
Cement production is energy-intensive and traditionally relies on fossil fuels. Converting non-recyclable waste and biomass into usable energy offers a dual benefit: diverting waste from landfills while reducing dependence on conventional energy sources.
Cemex Ventures noted that the decision to increase involvement with WtEnergy follows technical advancements and growing institutional support for the startup’s approach. The partnership is expected to generate value across the cement production value chain while supporting emissions reduction efforts.


