Derichebourg

Transaction in Own Shares • Sep 3, 2025

Launch of a sharebuyback program

Paris, September 3rd, 2025 –

Derichebourg (ISIN code: FR000053381, Ticker: DBG) announces that it has appointed an investment services provider (ISP) to repurchase a maximum of 1,591,778 shares, representing 1% of its share capital. Purchases will begin on September 4, 2025, for a period lasting until June 30, 2026.

The repurchased shares will be cancelled.

This mandate is entered into in accordance with the authorization of the general meeting of January 29, 2025, and EU Regulation No. 596/2014 of the European Parliament and of the Council of April 16, 2014, on market abuse, supplemented by Commission Delegated Regulation (EU) 2016/1052 of March 8, 2016.

About Derichebourg

The Derichebourg Group is a major player in the provision of environmental services, services to businesses and to regional and local governments. The Group is currently present in 13 countries and has 5,559 employees worldwide. In 2024, the Derichebourg Group' s revenue amounted to €3.6 billion. For more information: http://www.derichebourg.com

Contact

Derichebourg	NewCap
Investor Relations and Communication	Investor relations
communication@derichebourg.com	Louis-Victor Delouvrier/Theo Martin
	derichebourg@newcap.eu

Tel.: +33 (0)1 44 71 94 94