Canada has some of the cheapest and most plentiful hydro power in world. This is ideal for electrolysis of alumina to make aluminium.
Yes, its actually amazing they've haven't managed to screw that up since there are no more bauxite mines in the country. Although i think it would only be a matter of time before they throw it all somehow.
The problem with Canada's aviation industry is the neighbor down south constantly sabotaging them. Why did Bombardier need to sell out in the first place.
Bombardier was in perpetual state of bankruptcy and was being bailed out to the point that it could effectively be considered an arm of the Quebec government. They end up finished the C-series around 2017, right in the middle of Trump NAFTA renegotiation era, then Boeing tries to force a 300% tariff on them. They then cant get into the US market without manufacturing there, which mean they sell the plane to Airbus, then they have no commercials plane, so they sell the commercial plane division. Then they sell the De Havilland prop division since they weren't making any and were just licensing out the designs.
Bombardier actually comes out with pretty decent designs, you can tell by how many countries use them, but they're just shit at manufacturing them.