Posted by Oski (129 days ago)
a) Right, if your employer intends to have you server out the 6 months, they need to file for your visa extension to the end of your service.
b) If your employer terminates your contract and pays out the balance, they are obligated to inform immigration and IRD the end date of your employment.
In case of (b), by letter of the law, your employment visa is effectively terminated as of end of employment. However, in practice, immigration never bothers to cancel existing visas, and you are free to stay in HK until the stated expiration of your visa. After that point, if you need to stay longer, you can go to immigration and switch to a tourist visa. That would give you another 90 days. You can keep extending the tourist visa by making short trips out of HK until they warn you to stop.
(I am based in Hong Kong)