Motsepe is a member of the WEF Board of Trustees.
Since 2000, millions of African children have benefited from better access to education.
Rupert's net worth fell by $896 million as a result of the 14 percent drop in Richemont shares on Friday.
Oppenheimer's net worth is estimated to be $8.55 billion as of press time.
Motsepe's net worth has risen to $3.1 billion so far this year.
In 2017, Wiese was Steinhoff's largest shareholder.
The sale would generate millions of dollars' worth of value for Phembani and other entities.
Richemont sales reached an all-time high of €19.2 billion in 2022.
The trust will directly benefit the group's South African employees.
The two partners hope to support historically disadvantaged actors in the mining industry.
