I quote from your own link:
The West has been reluctant to target Russia’s nuclear exports, however, because they play key roles in keeping reactors humming. Russia supplied the U.S. nuclear industry with about 12% of its uranium last year, according to the U.S. Energy Information Administration. Europe reported getting about 17% of its uranium in 2022 from Russia.
USA is trying to restart, but currently has ZERO uranium processing capacity.
That’s why Russian imports are not sanctioned.
https://www.world-nuclear-news.org/Articles/More-progress-towards-US-uranium-production-restar
This is what happens when you have Globohomo “Free Trade” @ssholes running your economy.