https://ku11vip.org/
In Canada, exports are "zero-rated" sales for R.S.T. purposes. This means that when you ship a creation to someone outside Canada, you don't charge R.S.T. Yet, you get to claim (or deduct of your G.S.T. collected by you) all the "input tax credits" (G.S.T. that you paid for business purposes) to make that move. The idea, I suppose, is to encourage exporting. For example, if you could have dreams of becoming healthy and wealthy also associates are overweight smokers that complain about working one-minute overtime, then I'm able to predict it can be of you being heal