The International Conference on Sustainable Technology and Engineering 2023 (i-COSTE 2023) would be a wonderful gathering between IEEE members in South Pacific, Australia and the rest of the world to share the latest development in the area of Sustainable Technology and Engineering. The conference will be a forum for participants to discuss state-of-the-art innovations in technologies which have been made available by the researchers & engineering professionals and will feature plenary and panel sessions as well as technical paper presentations and poster sessions. Workshop by international experts on Sustainable Technology and Engineering applications will also be available. The conference theme for 2023 is " Sustainable Technology for Humanity". i-COSTE 2023 is also aimed to promote discussion about the pedagogical potential of new sustainable technologies for the developing countries.