One of Africa’s most prominent mining billionaires is facing another major legal test over graphite in Tanzania, where a long-running dispute over confidential business information, rival mining interests and a $195 million damages claim has taken a fresh turn in court

A South African court cleared African Rainbow Capital in the $195 million Tanzanian graphite dispute, but proceedings against Motsepe-linked firms continue.

One of Africa’s most prominent mining billionaires is facing another major legal test over graphite in Tanzania, where a long-running dispute over confidential business…