The law in Hong Kong requires that every private limited company appoints a company secretary. The company secretary will be the primary officer in charge of numerous administrative and reporting responsibilities a company is required to adhere to by law. These statutory requirements include the filing of annual returns, and recording and filing of board resolutions.
If that secretary is an individual, they are usually required to reside in Hong Kong; if the secretary is a body corporate, their registered office or place of business must be in Hong Kong.
A sole director/shareholder can not perform as company secretary.