Sr Professor Paul Tsui currently serves as the CEO of Esri China (Hong Kong). Esri is the world leader in Geographic Information Systems (GIS) and mapping software. Prior to joining Esri, he worked in Ordnance Survey, the world-renowned national mapping agency of the United Kingdom. As a professional, Sr Prof. Tsui is the Vice President of the Hong Kong Institute of Surveyors. He is also Member of the Royal Institution of Chartered Surveyors and a Registered Professional Surveyor (Land Surveying) in Hong Kong. Additionally, Sr Prof. Tsui actively participates in volunteer services in the industry and education sector. Currently, He acts as an Adjunct Professor at the Department of Civil and Environmental Engineering, the Hong Kong University of Science and Technology. He also serves as the Honorary Advisor of GIS Academy. He was appointed as the Sector Specialist in the Information and Communications Technology Sector by the Hong Kong Council for Accreditation of Academic and Vocational Qualifications. He also served as the Chairman of the Department of Geography Advisory Committee of Hong Kong Baptist University. In the academic and research aspect, Sr Prof. Tsui has participated in many GIS research projects related to spatial data modeling and analysis. He was awarded Outstanding Alumni Award in 2020 by the Department of Land Surveying and Geo-Informatics of the Hong Kong Polytechnic University; and the Best Paper Award in 1998 held by the International Association of Chinese Professionals in Geographic Information Science (CPGIS). Sr Prof. Tsui holds a degree of Master of Philosophy in GIS.