Need. Because non-Hong Kong natives want to work in Hong Kong, they must have a Hong Kong work endorsement and submit an entry permit issued by the Hong Kong Immigration Department to work, get employed, train and go to school in Hong Kong, so they need a work visa after studying in the United States. The materials required to apply for a work permit in Hong Kong include ID card, original household registration book, academic degree documents and transcripts, and bareheaded photos of 1 in the last 6 months.