| Guangdong Real Estate Research Association Expert Adviosry Committee | |
| Guangdong Speciality Committee on Oral Medicine, Guangdong Stomatological Association, China | |
| Guangdong, Hong Kong and Macao Laboratory Animal Innovation and Sharing Service Union | 12/2019-12/2024 | Associate Director | | |
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| Guangdong-Hong Kong-Macao Greater Bay Area Oral Health Alliance | |
| Guangdong-Hong Kong-Macao University Alliance for Public Health | 11/2019-05/2023 | Associate Director | | |
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| Guangdong’s Association For Promotion of Cooperation between Guangdong, Hong Kong & Macao | 2018 - present | Standing Committee Member, Financial Professional Committee | | |
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| Guangzhou Arbitration Commission | |
| Guangzhou HuiAi (NaoKe) Hospital, Guangzhou, China | 08/2014-present | Visiting Professor | | |
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| Guangzhou Judicial Thinktank, Guangzhou Intermediate People’s Court | |
| Guangzhou Med Univ, Grad School | 05/2014 | Externar Examiner: (Liu Jie, MPhil Thesis | | |
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| Guardianship Board, HKSAR, China | |
| Guideline Subcommittee, Hong Kong College of Obstetricians and Gynaecologists | |
| Guidelines and Publication committee, World Gastroenterology Organization | 09/2005- present | committee member | | |
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| Guiyang Medical College, Guiyang City, Guizhou Province, China | 11/2004-11/2006 | visiting professor | | |
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| Gyn Onc Subspec board | |
| Gynae Oncol subspecialty board | |
| Gynaecological Oncology Board of the Hong Kong College of Obstetricians and Gynaecologists | |
| Gynaecological Oncology committee, Asia & Oceania Federation of Obstetrics & Gynaecology | 06/2022 – Current | Chairman | | |
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| Gynaecological Oncology committee, Asia & Oceania Federation of Obstetrics & Gynaecology (AOFOG) | 01/2020 - 05/2022 | Secretary | | |
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| Gynaecological Oncology sub-committee, the Hong Kong College of Obstetrics and Gynaecology | 01/2018 - Current | Committee member | | |
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