First half of 2026 results

60.1% growth in gross business volume to €16.8 million
Operational performance above expectations

Pau, 23 September 2026 - Arverne (FR001400JWR8 - ARVEN), France’s leading provider of geothermal solutions, announces its 2026 half-year results.

Critical Metals - Lithium de France project

Pre-industrial phase completed in line with the roadmap
Operational performance above initial forecasts
Equinor Ventures reaffirms its support for the project

Heating & Cooling

Creation of la Francilienne de Géothermie with Banque des Territoires and financial commitment of up to €45.1 million
First production and sale of renewable heat expected as early as next winter
Acceleration of shallow geothermal deployment driven by a fast-growing market and stronger public support measures for the sector

Drilling & well construction

Completion of the Safran project and deployment of drilling capacity to support the Group’s projects
Successful drilling of the first wells of Lithium de France project
Acceleration of shallow geothermal projects

Strong momentum since the half-year end

Successful issuance of ORANE[1]€70 million, subscribed by the longstanding shareholders ADEME Investissement, Crédit Mutuel Equity, Eiffel Investment Group, and, alongside Bpifrance and GEOGREEN
Total exploration potential of up to 43 million tonnes of lithium carbonate equivalent in Alsace
A new Geothermal Lithium Exclusive Permit (PER) in Auvergne, a new growth driver for Arverne

[1] Bonds Redeemable in New or Existing Shares

Objectifs 2026 et trajectoire Dual Flow confirmés

Pierre Brossollet, founder and CEO of Arverne, said : « We have achieved all the key milestones of Lithium de France’s pre-industrial phase, delivering results that exceed our initial expectations. At the same time, we reached a major milestone in the development of our Heating & Cooling solution with the creation of La Francilienne de Géothermie and the announced start of production from our first renewable heat sales as early as this winter. Strengthened by the support of our financial partners, enhanced visibility on the potential of our resources, and new development opportunities, we are entering Arverne’s next phase of growth with confidence. ” [...] Read full press release

About Arverne

ARVERNE is the leading French supplier of geothermal solutions. It specialises in harnessing natural ground resources to transform them into local energy sources for heating and cooling systems and to extract lithium. A mission-driven company listed on Euronext Paris, Arverne works for local authorities and industrial companies with a focus on energy sovereignty and short supply chains.