16 September 2026 · Arsenal de Metz
European Forum
Defence • Civil • Natural Hydrogen
Free registration • Limited seats
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Record H₂ concentration measured at a depth of 2,426 m.
200
First industrial production targeted
20 km²
Exploration perimeter in Lorraine.
European Energy Sovereignty
16 September 2026
One forum, three worlds
Defence
Securing the energy supply of the armed forces. Natural hydrogen, a strategic resource for European operational resilience.
Civil / Industry
Building a complete European industrial value chain. From drilling in Lorraine to the energy uses of the regions.
Science
Characterising the deposit and its operating conditions. The CNRS and its European partners at the heart of scientific knowledge.
The Metz Declaration
Adopted at the European Forum Defence • Civil • Natural Hydrogen, the Metz Declaration is the founding act of a European reflection on sovereignty over the subsurface, the securing of strategic energy and mineral resources, the energy autonomy of Europe and the industrial resilience of the continent.
How the day unfolds
From the official opening to the signing of the Metz Declaration.
09h00
Opening
Official Opening
09h30
Plenary
Natural hydrogen: from scientific discovery to European strategic stakes
10h45
Major Strategic Session
Sovereignty of the subsoil and securing strategic supplies
12h00
Presentation
Presentation of the founding principles
12h30
Signatories
College of founding signatories
14h00
Panel I
Defence and energy autonomy
15h15
Panel II
From the resource to strategic infrastructure
16h30
Special Session
Towards a European committee of experts and an independent European agency for strategic resources
17h45
Closing Addresses
Adoption and signing of the Metz Declaration
They champion the Forum
Ville de Metz
metz.fr
Eurométropole de Metz
www.eurometropolemetz.eu
Armées – Zone de Défense et de Sécurité Est
www.defense.gouv.fr/ema/zone-defense-securite-est
Direction générale de l'armement (DGA)
www.defense.gouv.fr/dga
Agence de l'innovation de défense (AID)
www.defense.gouv.fr/aid
Maintien en condition opérationnelle terrestre (SIMMT)
www.terre.defense.gouv.fr/simmt
Fraunhofer ICT
www.ict.fraunhofer.de
CNRS
www.cnrs.fr
TechnologieRegion Karlsruhe (TRK)
technologieregion-karlsruhe.de
DSI – Défense & Sécurité Internationale
DefTech Magazine
Eurojournalist
eurojournalist.eu
Territoires Hydrogène
Green Hydrogen
Green Touch Business
HAROPA PORT
www.haropaport.com/de
GICAT
gicat.com/de
CLUB VISION HYDROGENE
clubvisionhydrogene.org
PowerTech Systems
www.powertechsystems.eu/fr