This is a great deal for Québec.
They may gain in value of their acquired shares but they may also lose in terms of wider economic output for their province.
Pretty much the same as modern Boeing. Something like 70% of the 787 structure is made abroad but glued together in the USA:
http://static1.uk.businessinsider.com/image/58a768badd0895f0...
Australia, Canada, France, Italy, Japan, Korea, Sweden and ( if RR engines chosen ) UK all send their assemblies to Seattle and Charleston. That's without considering avionics and internal systems.
Hence the wording 'Country of final assembly' on the onboard safety cards, carefully chosen to obscure origins.
Or taking loss in share, inturn for long-term gain and short term atleast something than nothing