Low-energy nuclear reactions such as fusion-evaporation, multi-step Coulomb excitation, transfer reactions, etc. are important probes to investigate exotic structure of unstable nuclei. While RIBF provides world's most intense RI beams, an energy of about 250 MeV/A is much higher than required energies for low-energy reactions. In this mini-workshop, new proposed method to degrade energy and physics cases using degraded beam are discussed. We will also discuss a collaboration not only for the beam development but also for development of ancillary detectors etc.