As part of the deal, the Lundin Family Trust also agreed increase its stake in the company from 17.7% to 19.9%.
The world’s single biggest buyer of copper, State Grid Corp. of China, has slowed its purchases of copper wire this year.
The planned Grand Inga hydropower complex in the DRC has been stalled for decades.
Derivatives will be used to lower the risks of cross-border investments and to enhance financial stability, the Chinese producer said.