ions for di erent models of concurrency, whether this interest be practical or theoretical, primary or derived. SUMo PC members have reviewed ve submissions by researchers from three countries, including a number of submissions by authors from di erent countries. Each submission was reviewed by 4 program committee members. APNOC PC members have reviewed six submissions by researchers from six countries, including a number of submissions by authors from di erent countries. Each submission was reviewed by at least 3 program committee members. The workshops organizers would like to thank Daniel Kroning, from Oxford University (UK) for his Keynote talk entitled "Unbounded is back". The workshops organizers would also like to thank the authors of submitted papers for their interest in SUMo/APNOC. We also thank the program committee members and the external reviewers for their outstanding work during the reviewing process. Last but not least, we thank the authors of the EasyChair conference management system which made the practical organization of the reviewing process considerably easier.