Hydrogen + Fuel Cells Hannover Messe
April, 17-21, 2023
Hannover, Germany
https://www.hannovermesse.de/en/expo/topics/hydrogen-fuel-cells-hannover-messe
Hannover, Germany
https://www.hannovermesse.de/en/expo/topics/hydrogen-fuel-cells-hannover-messe
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Ocean Business
April, 18-20, 2023 
Southampton, United Kingdom 
https://www.oceanbusiness.com/?privacy=updated THE HANDS-ON OCEAN TECHNOLOGY EXHIBITION AND TRAINING FORUM Discover innovations at the forefront of ground-breaking ocean technology. A free event for everyone in the ocean science and technology community.
Plastics Recycling Show – Europe
May, 10-11, 2023
Amsterdam, Netherlands
https://www.prseventeurope.com/prse2023/en/page/home The Plastics Recycling Show Europe is THE dedicated exhibition, conference and awards for plastics recycling in mainland Europe. The biggest names in recycled materials, recycling machinery and services will be on display, showing the latest innovation from the industry. The free conference with key industry figures will address the latest opportunities and challenges that face the plastic recycling industry in Europe.
