Circuland is producing the Circuland Platform, a tool to enable materials’ re-use in the AEC industry. We envision cities as urban mines and materials as circular resources. Our platform is designed to enable the transition towards this vision, offering the following functions: 1. Production of Materials Passports for new Construction Products 2. Production and Life-Cycle Management for Materials Passports for Buildings 3. View of the UK Materials Stock Database, based on the input from the Buildings' Materials Passports 4. Marketplace for re-used materials, which uses Materials Passports to provide clarity on re-used materials identity