| O | Expanded Building Committee | Others | |
| O | Expanded Building Committee at Buildings Department, the Government of HKSAR | Others | |
| O | Experimental Neurology | Others | |
| O | Expert Advisory Commission on the Formation of the China Investment Corporation, State Council, China | Others | |
| O | Expert Advisory Commission to the Beijing Government on the 12th Five-Year Plan | Others | |
| O | Expert Advisory Committee of Beijing Center for Global Health, Beijing CDC (China) | Others | |
| O | Expert Advisory Group on Bioavailability and Bioequivalence Studies, Pharmacy and Poison Board | Others | |
| O | Expert Advisory Group on Preventing and Minimising Gambling Harm, Ministry of Health & Department of Internal Affairs, New Zealand | Others | |
| O | Expert Advisory Group, Cable TV | Others | |
| O | Expert Advisory Panel (Infectious Diseases) | Others | |
| O | Expert Advisory Panel for the Study Related to the Artificial Islands in the Central Waters | Others | |
| O | Expert Advisory Panel in Infectious Diseases, Health and Medical Research Fund / Food and Health Bureau | Others | |
| O | Expert Advisory Panel in Primary Healthcare and N0n-communicable Disease, FHB | Others | |
| O | Expert Advisory Panel in Primary Healthcare and Non-communicable Disease, Food and Health Bureau | Others | |
| O | Expert Advisory Panel under the Steering Committee cum Command Centre in relation to the Novel Coronavirus Infection (HKSAR) | Others | |
| O | Expert Advisory Panel under the Steering Committee cum Command Centre in relation to the Novel Coronavirus Infection, HKSAR | Others | |
| O | Expert and Scientific Committee, Hong Kong Society for Travel Medicine | Others | |
| O | Expert Committee of Asia-Oceania Federation of Obstetricians & Gynaecologists | Others | |
| O | Expert Committee of International Federation of Gynaecologists & Obstetricians | Others | |
| O | Expert Committee on Clinical Events Assessment Following COVID-19 Immunization | Others | |
