This article is written in Hong Kong English, which has its own spelling conventions (colour, realise, travelled) and some terms that are used in it may be different or absent from other varieties of English. According to the relevant style guide, this should not be changed without broad consensus.
A fact from Victor Mallet visa controversy appeared on Wikipedia's Main Page in the Did you know column on 15 January 2019 (check views). The text of the entry was as follows:
This article is within the scope of WikiProject Hong Kong, a project to coordinate efforts in improving all Hong Kong-related articles. If you would like to help improve this and other Hong Kong-related articles, you are invited to join this project.Hong KongWikipedia:WikiProject Hong KongTemplate:WikiProject Hong KongHong Kong articles