I don't know where you get the idea that Canada is in competition with PLAN I put the excerpt above to show that it is an old idea. And Canada do have a thriving nuclear industry it is called CANDU program google it But unfortunately they let it wither because lack of fortitude and marketing skilllol good joke.
Even assuming Canada has the competency to keep up with the development institutes of the PLAN, there's no way their involvement in any shape or form would not constitute a massive breach of the laws regulating national security, official product standards and safety.
As the article said every country as their own requirement Canada has vast arctic territory but shallow water Big nuclear sub is impractical. Diesel engine sub lack the endurance
So why not combine the best of two by having hybrid
Now that PLAN adopted this concept Good for them It will give them long patrol capability in western pacific and SCS without worrying lack of fuel or detection during refueling But still need resupply of food