DPI
The part of liable I can assure you. I was with DPI on contract over 10 Years ago and we are still in contact now and then. Some of the people there are still working in Administration after all the years.
Vietnam is fun and I never had a problem there. I just flew to SGN last month again and had a great time again. People where nice and we visitet Vietnam AL again for handling.
Fly safe and land happy
NG