Correct Rameses. I flew for CHC back in 92-94 when we had aircraft flying for the UN in Cambodia, Kuwait, Somalia, Mozambique, Angola, Rwanda, Uganda and god knows where else. Also with contracts at that time were Bristow, Evergreen, Skylink and several Russian firms.
Be careful about the tax thing.....in Canada the law states that work done for the UN is tax free, but when we tried to get it they said we didn't work for the UN, we worked for CHC. Don't know how it works elsewhere, just something to watch for.