Then in this case you are in a good position to make demands regarding benefits package. The packages usually include health care, dental care, retirement plan or rather, if they do not, you should ask for them as there are the costlier ones. You can also ask for education of your children to be paid, housing, a company car maybe with a driver (we are in Hong Kong here where cheap staff is available), a maid and even Chinese classes for your entire family and yourself through your work.
The only danger in asking is a no! Like they say, if you do not ask though, then you will not get it.