The flagship HK Tech Forum series was initiated by Professor Way Kuo, President of City University of Hong Kong (CityU), and hosted by the Hong Kong Institute for Advanced Study (HKIAS), CityU. Under the theme “Empowering Society for a Better Future”, the series serves as a dynamic platform for discussing innovative strategies and approaches to major challenges in science and technology. The 5th and the 6th forums concluded the 2022 inaugural series, attracting leading academic and industry researchers from around the world to share their insights on quantum physics and complex systems; as well as metabolism in health and disease on 7-9 and 15-16 December respectively.