The requirements laid down in Articles 13 of the Nationality Law of the People's Republic of China are as follows:

Article 13

Foreign nationals who once held Chinese nationality may apply for restoration of Chinese nationality if they have legitimate reasons; those whose applications for restoration of Chinese nationality have been approved shall not retain foreign nationality.

Appendix

It is not possible to set out all the circumstances in which the Director of Immigration would normally accept as having a legitimate reason but consideration will be given to :-

• whether you have the right of abode in Hong Kong
  
• whether you are living in Hong Kong
  
• whether you are of good character and sound mind
  
• whether it was necessary for you to renounce Chinese nationality or declare a change of nationality to enable you to retain or acquire some other citizenship or nationality, and the reasons why you wish to restore Chinese nationality now
  
• whether you followed your parents' or one of your parents' nationality when you were under the age of 18, and the reasons why you wish to restore Chinese nationality now
  
• whether there are other legitimate reasons to support your application