We aim to achieve the goal of plastic up-cycling through four major parallel research lines which together span the process from plastic depolymerisation, via the microbial metabolism of the plastic monomers, to the production of the bioplastic PHA and its subsequent purification. These research lines are brought together into a coherent whole through the bio-engineering power of synthetic biology aided by the model-based design of enzymes, bacteria and processes. A work package for management and coordination ensures an efficient execution of the project. We are also dedicated to communicate our work, both to the scientific community but also to other interested parties.