The ECO2FLY project, developed at the Holcim facility in Villaluenga de la Sagra, Spain, is a significant step towards sustainable aviation fuel production. The project aims to capture over 700,000 tons of CO2 annually from cement production and combine it with green hydrogen to produce around 100,000 tons of sustainable aviation fuel (eSAF). Over the first decade of operation, ECO2FLY plans to avoid emissions of over 6.5 million tons of CO2, contributing to the decarbonisation of air transportation. The collaboration between Holcim, IGNIS P2X, and Exolum is strategic in converting industrial emissions into sustainable aviation fuel, without the need for adaptations in aircraft or supply infrastructure, thus accelerating decarbonisation. This partnership not only focuses on reducing carbon emissions but also drives innovation in the cement industry, offering employment opportunities and wealth creation for the region. ECO2FLY's technology and production capacity position it as a leader in Europe for decarbonisation, particularly in sectors like aviation. The project is considered crucial for Spain's economy, as it marks the beginning of a new industry that could lead to the country becoming exporters of renewable fuel on a large scale.