On September 29, 2025, Heidelberg Materials France, Lafarge Ciments, Lhoist, NaTran, Elengy, and RTE launched preliminary consultations on the GOCO2 project, a collective initiative to decarbonize industry and support the ecological transition in western France.
Launched in 2021, GOCO2 brings together Heidelberg Materials France, Lafarge Ciments, Lhoist, NaTran, Elengy, and RTE to meet the challenge of decarbonizing cement and lime production in western France. The project covers several departments: Deux-Sèvres, Mayenne, Maine-et-Loire, Ille-et-Vilaine, and Loire-Atlantique. The challenge is to avoid the emission of 2.2 million tons of CO2 per year into the atmosphere from 2031 onwards (equivalent to the emissions of the city of Nantes). GOCO2 represents a total projected investment of around €2.5 billion.
Find out more in the press release (in French only)
Preliminary consultation
The preliminary consultation is being organized under the auspices of the National Commission for Public Debate (CNDP), which has appointed three guarantors—Jean-Pierre Bompard, Marc Navez, and Catherine Trebaol—to assist in preparing the consultation procedures and ensure that it runs smoothly.
From September 29 to December 19, 2025, the public can obtain information and express their views through a variety of channels. Around 40 public meetings are planned in the area covered by the GOCO2 project. A dedicated website (https://concertation.goco2.fr) is online, featuring the consultation file, the schedule of meetings in the area, and a form for submitting comments and questions.
At the end of the consultation, within the following month, the guarantors will publish their assessment of the preliminary consultation.
