Sunrise is one of the highest grade and largest nickel and cobalt deposits outside of Africa and one of the largest and highest grade scandium deposits in the world.
A prefeasibility study into the development of a mine beneath the Boston Shaker pits confirmed the technical and financial viability of an underground mine at AngloGold Ashanti and Independence Group's Tropicana operation.
The punishment from the OSC is a response to false accounting from Katanga that saw it overstate how much it mined in the Democratic Republic of Congo in 2014.
Various international groups had expressed interest in exploring for lithium in Portugal, which is the world's sixth-largest lithium producer, and Europe's biggest.