The International Workshop on Sustainable Chemistry (www.iwsuschem2023.org) will be held on May 8-11, 2023 in the Polytechnical University of Cartagena-UPCT (Murcia-Spain), as an interdisciplinary platform that offer to academic and industrial researchers a privileged environment to exchange on the latest scientific advances in the field of sustainable, green and circular chemistry, to show your recent innovations, to share on tomorrow’s scientific and technological hurdles, and to facilitate public-private and private-private partnerships.