In February, prosecutors accused the director of Mayak, Russia's main waste processing plant in the Ural Mountains, of allowing tons of radioactive nuclear waste to flow into a nearby river.

NPR: Russia Plans Nuclear Power Expansion

In view of the radioactive nature of thorium, a hazard is posed from waste produced in the processing of rare earth oxides, which contains it.

FORBES: Rare Earth Elements And Thorium Power

Its services include engineering, decontamination, radioactive waste processing, and removal, transportation, and disposal of waste for closed nuclear power plants and former weapons sites.

FORBES: Energy Solutions Looks Like A Buy