This is the second meeting of the projects MeV2TeV: Particle Physics at Colliders and Astroparticle Observatories, funded by the Spanish Ministry of Science and Innovation under contract PID2019-107844GB-C21/C22 and Física de Astropartículas y QCD, funded by Junta de Andalucía (PAIDI 2020) and FEDER under contract P18-FR-5057. The projects involve researchers from the Universities of Huelva, Pablo de Olavide of Seville, Cordoba and Granada. The aim of the workshop is to discuss ongoing work and explore further possibilities of collaboration among the members of the different research teams.