There are three main categories in particular: > environmental Ks: for example, with the ISO certification, waste management, carbon footprint as sessment according to UNI EN ISO 14067:2018; circular economy projects; > safety Ks: for example, having the OHSAS 18001 certifi cation, monitoring the main safety indexes; > social Ks: for example, hiring staff in a state of unem ployment/redundancy/mobility or young first-time job seekers, or conducting social projects.