The development of safe and environmentally friend processes is the basis of green chemistry, an area that has been greatly expanded in the past years. Prevention or reduction of residues, use of renewable raw materials, handling of non-toxic reagents and products, as well as reduction of water and energy demands in the processes are among the goals of green chemistry. At the beginning, most of the concepts of green chemistry were applied in organic synthesis, aiming at eliminating or reducing the use of solvents, replacing toxic reagents and vanishing or minimizing the production of residues. These topics are still important and commonly pursued, especially concerning the production of pharmaceuticals and fine chemicals. Nevertheless, the crescent climate changes, caused by the use of fossil resources, has enlarged the concept of green chemistry, which is now associated with sustainability. In this context, the use of biomass and CO2 as sources of biofuels and bio-derived chemicals has emerged as a response of Chemistry, as a whole, to the global warming issue. The symposium on Green Chemistry and Biotechnology will cover the recent progress and new technologies related to renewable energies, biomass processing, carbon dioxide capture and utilization, green methods in organic synthesis, valorization of industrial wastes and biomass residues, as well as biorefinery technologies.