Ir Prof. Dan Tsang is a Professor in the Department of Civil and Environmental Engineering at the Hong Kong University of Science and Technology and Pao Yue-Kong Chair Professor in the State Key Laboratory of Clean Energy Utilization at Zhejiang University in China. Dan was a Professor and MSc Programme Leader at the Hong Kong Polytechnic University, Visiting Professor at the University of Queensland in Australia and Chulalongkorn University in Thailand, Visiting Scholar at Stanford University in the US and IMETE Scholar at Ghent University in Belgium, and postdoctoral fellow at Imperial College London in the UK. He has more than 20 years of R&D experience, published more than 600 articles in the top 10% journals, and was selected as Stanford University's Top 2% Scientists (Lifetime) and Clarivate's Highly Cited Researchers in the academic fields of Engineering as well as Environment & Ecology. Dan's team aspires to develop green technologies for long-term decarbonization and promote resource circularity and sustainable development. Dan also serves as the founding Editor-in-Chief of npj Materials Sustainability (Nature Portfolio), Chairman of the Hong Kong Waste Management Association (2023-2025), and Chairman of Waste Management Subcommittee of the Advisory Council on the Environment (2023&2024) of the Hong Kong SAR Government.

Xiaohong Zhu is a Professor of Civil Engineering Materials at Beijing University of Technology. Over the years, he has conducted research at Chongqing University, Queen's University Belfast, the University of Leeds, the Hong Kong Polytechnic University, and the University of California, Berkeley, specializing in low-carbon cement and concrete technology, as well as aged concrete. Dr. Zhu has collaborated with Prof. Ian G. Richardson at the University of Leeds on the analysis of historically significant aged cement samples, including Joseph Aspdin's patent Portland cement (Wakefield, UK) and William Aspdin's cement (Sheerness, UK). Additionally, he has worked with Prof. Paulo J. M. Monteiro at UC Berkeley on studies of Roman concrete and concrete from the Hagia Sophia Grand Mosque (Istanbul, Turkey).