European Hydrogen Week 2025 is Europe’s leading event dedicated to the hydrogen economy. The 2025 edition marks the launch of a new format, reshaped into a bi-annual series, bringing even more content, high-level discussions, networking opportunities, and collaborations. This flagship event will gather policymakers, industry leaders, researchers, and innovators to connect, create synergies, forge partnerships, and exchange on all things hydrogen. HSL attendance: Visitor Rawad Habre September 29 – October 3, 2025 Brussels, Belgium

Pollutec 2025 is the leading meeting place for stakeholders committed to the environment. For over 45 years, the exhibition has brought together the most innovative solutions to accelerate the ecological transition and open new markets. With 11 sectors of expertise, inspiring conferences, and countless networking opportunities, Pollutec is the must-attend event to shape a sustainable future. HSL attendance: Exhibitor – with Région SudMarie Sorensen Guillaume, Renaud Alouche & Carla GuittonOctober 7–10, 2025Lyon, France

H2 Technology Expo Europe is the must-attend conference and exhibition exclusively dedicated to advanced technologies for the hydrogen and fuel cell industry. The event will gather the entire hydrogen value chain to showcase solutions for low-carbon hydrogen production, efficient storage and distribution, and innovative applications for various industries. ▶️ HSL attendance: Exhibitor (Booth 5H70) 👩‍🔬 Marie Sorensen Guillaume & Belén Moreno Fresneda 📆 October 21–23, 2025

The Business Booster 2025 is InnoEnergy’s flagship event for sustainable energy innovation. This international two-day networking event brings together over 150 cutting-edge sustainable energy technologies under one roof, creating a dynamic space for startups, investors, corporates, and policymakers to connect, collaborate, and accelerate the energy transition. For its 2025 edition, the event will take place in Lisbon, continuing its tradition of rotating across major European innovation hubs. ▶️ HSL attendance: Exhibitor👨‍🔬 Pierre-Emmanuel Casanova & Renaud Alouche📆 October 22–23, 2025📍 Lisbon, Portugal