Not sure about all of them
but I know at least one major vendor that builds in Singapore and ships to order.
I'm not sure about processing refugees offshore, but if you can fill a container, buying offshore and arranging the shipping yourself seems like a plan. For those cost savings, you can rip and replace any faulty kit.
Sometimes its just the resellers trying it on. HP's 8 port gigabit switch 1810-8G generally goes for around 145-200 AUD, but there's one shop punting it for over $350! Nice work if you can get it!