Mali has a significant mine that France essentially controls. In America, we have mines but import a lot too.

We actually currently buy about 25% of our uranium supply from Russia, though Congress just passed a ban that’ll go in effect in 90 days. It allows for waivers if there are supply issues, though, so it might end up being more than 90 days. (I have no idea how quickly a country can find a new uranium supplier but it sounds complicated.)

Well if you’re in the US you can get it from New Mexico and Wyoming. We’ve even got a few mines here in Texas.

So in the US it’s a matter of getting licensed by the NRC and contacting one of the many processing facilities.