This edition contains articles that were presented at the annual International Conference on Advanced Engineering and Technology (ICAET 2023) which was held in Incheon, South Korea, May 19-21, 2023. The articles cover engineering research and design results in the area of equipment and technological machines, building materials and analysing and designing an optimisation system for in-plant complex production based on Industry 4.0. This ICAET edition will be interesting and useful to many engineers and researchers whose activity is related to machinery, construction and industrial engineering.