Mining billionaire gets help from ex-spies in bitter legal fight

Black Cube, the private intelligence agency run by former Israeli spies, spent months setting up companies around the world. Offices, websites and employees were painstakingly put in place — all part of a sting targeting former executives at Brazilian mining giant Vale.

The Black Cube operation, made public in a court filing Thursday and described by people familiar with it, represents the latest escalation in a bitter fight between Vale and mining billionaire Beny Steinmetz.

What started in Guinea as a partnership in one of the world’s richest mineral deposits has devolved into a globe-spanning dispute that sheds light on how fortunes can be made and lost in the world of African mining.