"In 2011 the United States mined 9% of the uranium consumed by its nuclear power plants.[7] The remainder was imported, principally from Russia and Kazakhstan (38%), Canada, and Australia.[8][9][10] Although uranium production has declined to low levels, the United States has the fourth-largest uranium resource in the world, behind Australia, Canada, and Kazakhstan.[9]"
Major imports into the US come from Canada, Kazakhstan, Australia, and Russia. Namibia used to be a bigger import source country, but it's apparently dropped off in recent years.
