Regulations of Aircraft Registration Article 9

In the event of changes to nationality registration items, the owner or operator shall present relevant document along with the nationality registration certificate in applying to CAA for making such changes in registration and pay a fee for a new certificate.
中文原文 航空器登記規則第9條
國籍登記事項變更時,所有人或使用人應提出相關證明文件及國籍登記證書,向民航局申請變更登記,並繳納換證費。

English translation for reference only; the Chinese text prevails. Not legal advice.