As part of the deal, the Lundin Family Trust also agreed increase its stake in the company from 17.7% to 19.9%.
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.
Vedanta is joining a slew of Indian companies tapping stock investors amid surging valuations and increasing demand for equity investments in the country.