Certainly Germany, France, the United Kingdom, Singapore. In Singapore's case, tax differences have definitely encouraged the type of investment you need in the modern high economies of scale, high specialization. Singapore has picked up a lot of the work, specifically from Australia. The list goes on.
There certainly are developing countries that have picked up some of this: Brazil is an example. We have to remember that Brazil is also a manufacturer of aircraft. Bombardier is now competing with Boeing and Airbus, but its main competitor until recently has been Embraer aircraft. They make wonderful aircraft that see service here in Canada. Brazil's been much more aggressive in its training programs and tax incentives for investing in modern aircraft maintenance.