This conference proceeding presents selected manuscripts from the EUROMAGH 2020 Conference entitled "Sustainability and Biobased Materials on the Road of Bioeconomy". The content highlights technical progress and recent knowledge in the valorization of biomass into biobased materials, from extraction of natural polymers, biopolymers, to biobased mixtures from macro to nano scales. Topics include the following but not limited to:  1. Agroresources, fibers, nanofibers and nanoparticles reinforcements 2. Biocomposites and Nano biocomposites 3. Rheology, Bioprocess and Modeling 4. Plant aggregates, vegetal concrete and Industrial valorisation