Opening of a new ECT site in Villeneuve-les-Sablons, Oise (60) Starting January 12, the Villeneuve-les-Sablons quarry will open to our construction industry clients. Located 25 km from Cergy-Pontoise, the site accepts inert soil from local construction projects. The purpose of this site is to rehabilitate a former quarry. Upon opening, the site will be fully prepared to welcome our construction clients under optimal conditions : Soil traceability : at the receiving station, installation of load-inspection cameras, a radiation detection portal, and weighbridges to ensure weighing and per-ton billing. Opening hours : the site is open from 7:30 a.m. to 4:30

An accessible site for inert soil from the local construction industry Since December 8, the site in Harnes has been receiving inert soil from local construction sites. Located just 5 kilometers from the A21 motorway, this new site offers construction companies a comprehensive, local, and economical solution for the management and recovery of inert materials. Open for 12 months, it guarantees rigorous traceability of soil deliveries, which contributes directly to the development and financing of the Bellevue park. Consult access conditions for the Harnes site A redevelopment project for Bellevue Park in Harnes This project, carried out in partnership with

October 15, 2025 – The signing of the tender agreement between the City of Harnes (Pas de Calais – 62) and ECT formalizes the partnership for the redevelopment of Bellevue Park. All work on the new park will be at no cost to the municipality, with no public money being spent on the project. Signature of the tender for the creation of a park On October 15, 2025, Philippe Duquesnoy, Mayor of Harnes, and Julien Golaszewski, Director of ECT Haut-de-France, signed the agreement to build Bellevue Park. The signing marks the launch of the project. Sébastien Lysik, deputy for sport and

September 2025 – In Douai, the ECT Hauts-de-France team is participating in the 69th Congress of Mayors and Presidents of Intermunicipal Communities of the North. It has been a day rich in exchanges, meetings, and activities at the ECT stand, punctuated by discussions around a common challenge: how to develop sustainable territories by recycling inert soil from local construction and public works sites. This meeting provided an opportunity to present ECT’s circular economy model : the rehabilitation of brownfield sites and abandoned land using inert soil from local construction sites, particularly in the mining basin. Among the projects presented, the