I saw there were 6 replys to this post so I didnt bother opening the thread thinking it had already been adaquatley answered to. Sorry.
Yeh theres no real union as such and more like a lose Company "asociation". There are unions here but not in the sense as we understand them. More for show as a facade to the UN and ASEAN and the commie government is in firm control of all of them.
There might be a pilot "union" down in Saigon but none here up north. Sorry I cant be anymore help as I havent realy investigated it.