https://rare-earth-mining.com/top-10-rare-earth-reserves-by-country/

If this is accurate, then yes, you are evidently correct, and I did not know that.

So thanks for spurring me to look into it!

If I'm understanding this right, Canada likely has more than Brazil overall, but Brazil's are proven, located, and extraction is more mature, whereas Canada's are still in the exploration phase, thus are not yet proven.