Expats and immigrants are different.
Expatriates go to another country for work. They go back home when their contract finishes. Immigrants stay in the new country permanently. Expats work for oil companies in Qatar and as English teachers in China. Expats are always transient populations. They'll do things like sell their entire home furnishings at once to new expats so you've got everything: blender, oven, cardboard Ikea furniture, the whole deal.