Dr Chu is a Clinical Professor in Family Dentistry, the Faculty of Dentistry, The University of Hong Kong. He has joined the university since 1992 and is the former Dental Surgeon in-charge of the University Health Service. He is Associate Dean (External relations) and Manager of External Relations and Knowledge Exchange Unit.
Dr Chu is President Elect (2016-2018) of the South East Asian Association of Dental Education. He is also appointed as Visiting Professor of Anhui Medical University. He is an Dental Examiner of the Royal College of Surgeons of Edinburgh and Specialty Board Member of the Royal Australasian College of Dental Surgeons. He is a Diplomate of the American Board of General Dentistry. He is a Master of the Academy of General Dentistry and received the Lifelong Learning & Service Recognition award. He is an active member of International Association of Dental Research. His research interests include caries prevention and management, clinical uses of fluorides and community dental care.