Dr. Cheng has a Bachelor Degree in Radiography from the Hong Kong Polytechnic University and a Master Degree in Medical Physics from the Imperial College London. In 2011, he received his PhD in Medical Physics from the University of Hong Kong. Harry is a Diplomate of the American Board of Radiology in radiation therapy physics, Certified Medical Physicist of the Hong Kong Association of Medical Physics and the Hong Kong Institution of Physicists in Medicine. As a radiation therapist and medical physicist in the field of radiation oncology for more than 27 years, Dr. Cheng recognised that our patients in Hong Kong should be allowed to benefit from the convenience of an ambulatory oncology centre with radiotherapy equipment in a central business district. Harry and Imen took the initiative and presented business models to potential investors to achieve their goal. Finally, Union Hospital appreciated their vision and mission and agreed to go into partnership to design and build the Union Oncology Centre, the first ambulatory oncology centre with both radiotherapy machines and medication treatment in the downtown. As a founder of the centre, Dr. Cheng was appointed as the Director of Union Oncology Service and Chief Medical Physicist. Dr. Cheng is an Honorary Assistant Professor of the Department of Clinical Oncology in the University of Hong Kong and an Adjunct Associate Professor of Radiation Therapy and Medical Physics in Tung Wah College. Harry hopes to devote his expertise to establishing the first comprehensive veterinary oncology centre with radiotherapy equipment and PET-CT for treating and diagnosing cancer respectively so as to improve the quality of life of animals with cancer. Both pieces of medical equipment will be the first for animals in Hong Kong. The veterinary oncology centre started the clinical service in the first quarter of 2022.