As part of the deal, the Lundin Family Trust also agreed increase its stake in the company from 17.7% to 19.9%.
If developed, the $2.4 billion Jadar lithium project in Western Serbia could cover 90% of Europe's current lithium needs.
Bullion is now 18% higher for the year, boosted by anticipation of Fed loosening as well as significant buying by central banks.
The planned Grand Inga hydropower complex in the DRC has been stalled for decades.
