The annual E&M I&T Day 2021 was successfully held at the Hong Kong Science Park from 7 to 8 December 2021. Over 250 participants from different government departments, the I&T industry, the E&M industry, tertiary institutions, public organisations, etc. attended the event. Its live broadcast also attracted about 1 000 viewers. The event was held in both physical and virtual formats. Through exhibition booths and seminars, participants shared innovative solutions in the field of smart city and smart building. Apart from inviting local universities and research and development institutions in the Greater Bay Area for sharing, the EMSD also collaborated with the representatives of the Food and Environmental Hygiene Department, the Transport Department and the Civil Aid Service to share the achievements and latest development of a number of smart city projects, including the smart toilet pilot programme, the automated parking system, the trial scheme of hiker safety initiative, etc. As the service provider and Innovation Facilitator of E&M engineering services for the Government, the EMSD will continue to work with various partners to fully support our client departments in implementing the smart city initiatives.