The NNZ Symposium 2025 is all about the circular economy. We will get to know the topic in its various facets, experience successful examples from practice and be inspired by what circular economy could mean in our respective contexts. As with every NNZ Symposium, participants have the opportunity to get to know each other, network, exchange knowledge and learn from each other, as well as to jointly launch concrete projects to accelerate the achievement of the Sustainable Development Goals (SDGs) in Central Switzerland.