The European Enhanced Landfill Mining Consortium (EURELCO) is organising the Third International Academic Symposium on Enhanced Landfill Mining. This Symposium aims to bring together leading ELFM academics, industry and public body representatives, as well as civil society actors to exchange and share their experiences and research results about all aspects of Enhanced Landfill Mining: the integrated valorisation of landfilled waste streams as materials and energy, using innovative transformation and upcycling technologies while respecting the most stringent social and ecological criteria. ELFM III will also host a session on in situ landfill mining techniques, which can be relevant for the recovery of critical metals from, a.o., landfills containing industrial residues such as goethite, red mud, phosphgypsum etc.