I've been looking for Canadian-made popcorn seasoning and found this one for sale locally:

https://www.chocolatemoosefudgefactory.com/collections/popcorn-shakers

I tried the ketchup flavoured one, but they have a lot of kinds.

Thoughts:

• Tasted a lot like how I remember ketchup chips from when I was a kid.
• They appear to be the same seasonings they use on their pretzels, which I also really like.
• Started clumping after only two weeks. (They all do that, but it's a bit fast.)