Mangisi was appointed to the board on 17 January 2025. He has extensive management and board experience in the mining sector, at both operational and board levels. From 2007 to 2012, he was chief executive at ARMcoal and, from 2005 and 2012, chief executive at ARMplatinum. Prior to that, he was an executive director at Harmony Gold Mining Company Limited in 2005. In 2002, Mangisi was appointed an executive director at African Rainbow Minerals (ARM) and before that, in 1999, he was appointed executive director of African Rainbow Minerals Gold.

Mangisi’s other board experience was gained at African Rainbow Minerals, ARM Mining Consortium (Pty) Ltd and Richards Bay Coal Terminal. Currently, he is an independent non-executive director of Ubuntu-Botho Investment, Kalagadi Manganese Mine and Harmony.

In addition, Mangisi is a trustee of Ubuntu-Botho Investments Young Persons Development Trust, Churches Support Trust and Women’s Upliftment Trust.