Social Welfare Department is in charge of the basic social security in Hong
Kong:
www.swd.gov.hk/en/index/
There is no social security as such in Hong Kong
apart from work insurance in case you hurt yourself. Otherwise you get it yourself
like in the United States. On the other hand the market for social security
services is very good (see the Health section as well) and very competitive.
In all cases though, make sure that health care is included in your work package/contract.
If there is a problem, you can still go to a public hospital and get treated
for free in case of an emergency.