Curiously enough, Expo 2015 life cycle is not over yet. Obviously it no longer involves thousands of participants (countries, civil societies and partners) and millions of visitors, but “objects” that were used during the six-month event and that now will be used in other contexts and for other purposes. Since the end of the event, Expo 2015 Spa, a company now being liquidated, has started the project Riuso (“reuse”) with the aim of exploiting the material assets still in its hands promoting the principles of the circular economy, one of the key messages linked to sustainability as a crucial immaterial legacy of the exhibition.  From a legal point of view, its activity comes under the collection and sorting of “non-waste goods” made available for reusing, as per art. ...