rvnx 14 hours ago

There are few examples: Boeing and helicopter spare parts. Examples include a pin invoiced at $1,678 with a real value of $7.71 (+21,000%), and a small metal sleeve billed at $71 instead of $0.04 (+177,475%).

It's because clients are captive, and aerospace companies are stuck with their suppliers if there is not enough competition. Add on top of that corruption and hidden kickbacks, and you have recipe for very high prices.