On 21 July 2022, City University of Hong Kong held the "HK TECH Tiger Seminar with Secondary School Headmasters" and this event attracted headmasters and representatives from 29 secondary schools in Hong Kong. At the seminar, our Director Prof. Kenneth Leung introduced the development and future visions of the State Key Laboratory of Marine Pollution (SKLMP) in detail. He mentioned that the ten-year "Global Estuaries Monitoring (GEM)" Programme initiated by SKLMP is the only endorsed proposal from Hong Kong and one of two endorsed "Ocean Decade Actions" from China that was selected as "Ocean Decade Actions" under the "UN Decade of Ocean Science for Sustainable Development (2021-2030)". Prof. Leung later guided a visit to the laboratory for seven secondary school headmasters and representatives. After listening to the vivid explanations of the laboratory's research activities and highlights from the research staff, all the guests expressed that they had a really nice and fruitful tour.