Sun Kai graduated from Shanghai University with a double bachelor's degree in law and English, and is currently enrolled in a part-time postgraduate program at East China University of Political Science and Law

He has accumulated sixteen years of legal practice experience in various companies, including a real estate company (listed on the NYSE), a shipbuilding heavy industry company (listed on the Hong Kong Stock Exchange), an insurance group company (listed on the Shanghai Stock Exchange and the Hong Kong Stock Exchange), a photovoltaic new energy group company (listed on the Hong Kong Stock Exchange), and a ceramic manufacturing company. He has held positions such as legal manager, senior legal manager, general counsel, and general manager of the legal department.