ECT Chairman wins jury’s “Coup de Coeur” award at Impact 2022 Awards 1December 5, 2022 – Laurent Mogno, President of ECT, received the Impact Trophy – Jury’s Favorite 2022. Organized by the newspaper L’Opinion, the Trophées de L’Impact honored 7 men and women whose commitment has had a positive impact on French society. The awards ceremony took the form of a conference on corporate impact and responsibility. The jury’s “Coup de Coeur” award goes to Laurent Mogno for his work as an“excavation rehabilitator“. The prize is awarded to a development model based on the circular economy of excavated earth from

3 ECT Oasis Nature sites in Seine-et-Marne Renatured areas at ECT’s Annet-sur-Marne (77) and Roissy-en-Brie (77) sites join Humanité et Biodiversité’s Oasis Nature network Following on from the Villeneuve-sous-Dammartin (77) site, singled out for its orchard, wooded hillsides and recreation area for the Common Buzzard, the areas dedicated to biodiversity at 2 ECT sites in Seine-et-Marne have joined the Oasis Nature network. A great accolade for ECT’s design, operation and fit-out teams. “ECT is encouraged to continue its efforts to create quality sites for biodiversity!” Charlotte Eulry, Oasis Nature project manager Find out more about Oasis Nature and Humanité et

by Mathieu NOELOperations Manager mnoel@groupe-ect.com Gone are the days when construction machinery would start up in a plume of smoke. However, digging, modelling and landscaping on our sites require the use of bulldozers, trax trucks, caterpillar excavators and articulated dumpers, all of which are sources of GHG emissions and pollution. How can we fit a decarbonization and emissions reduction trajectory into the reality of a construction site activity, with obvious budget constraints, and given the state of technological advances in both machinery and fuels? Our assessment is clear: while investment in machines has proved its energy efficiency, the search for

2 electric bulldozers to reduce the carbon footprint of land reception and earthworks at ECT sites. How to reduce the carbon footprint of ECT sites?  A first step in our decarbonization trajectory has been taken with the Bergerat-Monnoyeur company. ECT has acquired two Cat D6XE bulldozers. This model is the first electric-powered bulldozer with elevated transmission. This new technology optimizes and regulates internal combustion engine speed: the power calls, fuel consumption peaks, are just some of the benefits that managed by an electric hydraulic boost. The target for reducingCO₂emissions is 20%. These machines are also characterized by their ease of use. for

Soil reception conditions Between June 2020 and April 2021, ECT received soil from its Villeneuve-sous-Dammartin (77) and Annet-sur-Marne (77) sites that complied with the regulations but was potentially pyritiferous. The soil came from the excavation of the Grand Paris Express metro lines. Since 2021, ECT has been in contact with the Prefecture of Seine-et-Marne, the Ministry of the Environment and BRGM. These discussions validated ECT’s approach to risk management and analysis methodology. Two prefectoral decrees issued in July 2022 set out the procedures, controls and analyses carried out by ECT. They are planning two annual survey campaigns. What is pollution

A partnership for soil fertility: On Friday September 23, Laurent Mogno, President of ECT, and Léon Garaix, Director of Ecole Du Breuil, officially signed a partnership agreement between Ecole Du Breuil and ECT. This partnership has been operationally active since the beginning of 2022. We are proud to be a partner of this magnificent school of the City of Paris which for over 150 years has been home to one of the largest urban horticultural estates devoted entirely to teaching. In particular, this partnership aims to help develop specific expertise in soil-related issues. And enable BPREA students to testfertile substrate

We would like to inform you that during this summer period, all our sites currently in operation will remain open, except for a few days for the Cormeilles-en-Parisis and Vaujours sites, according to the schedule below: Cormeilles-en-Parisis (95) site Friday, July 15 Monday 8 to Friday 12 August inclusive Vaujours site (93) Monday August 15 to Friday August 19 inclusive All other sites remain open at their usual times, and will not be closed on Friday 15th July. If you have any questions, please do not hesitate to contact your sales representative.