They've updated and changed all the food labeling stuff online, as if it wasn't hard enough to find before. :/

The bookmark I had now leads here, https://www.canada.ca/en/health-canada/services/food-nutrition/food-safety/food-additives/lists-permitted.html with lists of permitted additives, but nothing about labeling exemptions.

I just went around in circles on their site and I've yet to find the list of additives exempt from labeling. It was a pain before and I think I stumbled on it mostly by accident.

At the end of the table it listed the exact food and safety law they were exempt from, and looking that law up was essentially a law against intentionally poisoning food.