It would be miracle fuel if any country in the world would have solved the waste problem by now. Finland is close, but still not done.
https://www.world-nuclear-news.org/Articles/BN-800-running-o...
> BN-800 running on 60% MOX
> The reactor core itself was refuelled and is now using 60% mixed uranium-plutonium oxide fuel, supplied by TVEL and manufactured at its Zheleznogorsk site. The plutonium for this was produced from uranium during the operation of other nuclear power plants and recovered from the used fuel assemblies through reprocessing.