Is the mainland going to Hong Kong for employment through labor dispatch?

Yes If you want to go to work, you can go to Hong Kong through labor agency, unit assignment, or through various forms of immigration, so you can work in Hong Kong. Labor intermediary and unit assignment need to obtain the entry permit from the Hong Kong Immigration Department before going to the entry and exit to apply for a stay endorsement. If you can contact your employer in Hong Kong to hire you and send you an invitation letter, your employer will also apply to the Immigration Department in Hong Kong, and you will get an entry permit before applying for a stay endorsement. Passports are used to go abroad. Hong Kong, Macao and Taiwan are all regions. You can't use your passport to enter and leave these three areas! ! ! Moreover, visas for going abroad are issued by embassies and consulates in China, not by the Public Security Bureau.