Canadians do not use pennies anymore. They round off to the nearest Nickel. For a period of time people turned in their pennies for face value above a nickel. As an American, I took all my Canadian pocket money to a bank while in Canada and got change back above a nickel.
I think the Canadian banks then return the cents to the central bank. Since the cent hasn’t been issued since 2012 they have slowly disappeared from circulation. Technically the cent is still legal tender but there is a limit of 25 that you can dump on any vendor. The Canadian cent is now mostly in the realm of collectors.