LA FRANCAISE DE L'ENERGIE DISCLOSURECurrent Reports (8-K / ad hoc)

Continued rollout of green electricity production from Abandoned Mine Methane

francaisedelenergie.fr Continued rollout of green electricity production from Abandoned Mine Methane Two new units started up at Rouvignies: the Group's fleet reaches 19 engines (+27% since June 2026) Target to double low-carbon electricity production capacity within three years Pontpierre, France, 31 August 2026 – La Française de l'Énergie (FDE – Euronext: FDE – ISIN: FR0013030152), a low-carbon energy producer, today announced the start-up of two new green electricity production units at its Rouvignies site in the Hauts-de-France region. Antoine Forcinal, CEO of FDE, commented: "Two months after Angres, the commissioning of the Rouvignies site demonstrates the Group's ability to execute its rollout plan on the announced schedule. Each engine brought into production benefits from a power purchase obligation contract with EDF, indexed to inflation and secured over 15 years, which guarantees lasting visibility on the Group's revenues and cash flows. With 19 units now in production and 16 additional engines already secured, we have every lever in place to double our green electricity production capacity within three years and continue creating value for our shareholders." Two additional green electricity production engines commissioned in August at the Rouvignies site Following the signing of the Abandoned Mine Methane agreement between the French State and FDE on 8 January 2026, and the prefectoral order of 20 May 2026 formally transferring 18 structures from the State, FDE is continuing to install new production units at these sites. In line with the announced schedule, following the commissioning of two new units at Angres last June, the Rouvignies site entered production in August with two 1.5 MW engines, identical to the 17 units already installed across FDE's various sites. The gas used comes from borehole S16, one of the 75 decompression boreholes drilled by the State in the 2000s, whose methane content, above 80%, was confirmed by tests carried out by Gazonor prior to its operation. This installation benefits from the feed-in-tariff contract with EDF at €80 per MWh, indexed to inflation and secured over a 15-year term, providing long-term visibility on the revenues associated with this site. Production at the Rouvignies site is equivalent to the electricity consumption of around 3,500 households