Costco sources their products via contracts, similar to Aldi. Sounds like Costco Canada tries to source things from Canada, but it may not always be the case, so loosely trust Kirkland and some of the other options. Watch for label changes, etc.
Big box stores are probably not a great option anyway if keeping your money local is your goal.
There’s also this article:
https://money.ca/news/is-kirkland-canadian
Costco sources their products via contracts, similar to Aldi. Sounds like Costco Canada tries to source things from Canada, but it may not always be the case, so loosely trust Kirkland and some of the other options. Watch for label changes, etc.
Big box stores are probably not a great option anyway if keeping your money local is your goal.