On the 29th and 30th October 2019, a group of experts on Brazilian and Chinese policies has convened at the Institute of East Asian Studies (In-East), of the University of Duisburg-Essen (Germany). The meeting, coordinated by Giulia Romano (University of Duisburg-Essen), Markus Taube (University of Duisburg-Essen) and Osmany Porto de Oliveira (Federal University of São Paulo), has provided the platform for this team to engage in a rich discussion about Brazil and China as rising protagonists of policy diffusion. For two days scholars with different backgrounds (public policy, international relations, economics and development studies), advanced on theory-building and concept formation to analyze these two countries in policy diffusion. Authors presented different comparative and single case studies of policy diffusion in the areas of social protection, family farming, health, participatory budgeting, economic zones and finance norms. This discussion started in 2018, during a workshop organized at the Institute of Development Studies of the University of Sussex (United Kingdom) about the BRICS in policy diffusion, and it continued at the Federal University of São Paulo in May of the same year. The results of these debates and analyses are going to be published in an edited volume expected for the end of 2020. The workshop in Duisburg was supported by the In-East School of Advanced Studies, an initiative funded by the German Federal Ministry of Education and Research.