Before her appointment to that position in July 2019, she was the chief executive officer of the Black Management Forum between 2016 and 2017.
[2] Although her family circumstances meant that she was forced to enter the workforce immediately after matriculation, she also enrolled part-time in the University of South Africa, intending to become a chartered accountant.
[6] Upon her appointment as managing director in 2016, she professed herself in favour of strict and punitive enforcement of transformation targets in South African companies.
[9] In April 2022, she made national headlines for walking out of a meeting between the board and Parliament's Standing Committee on Public Accounts.
When Mavuso told the Committee that the board and André de Ruyter would not accept being made "the fall guy for this ANC-led government" and its "mess" (the ongoing energy crisis), Committee chairperson Mkhuleko Hlengwa told Mavuso to "Either behave yourself or excuse yourself from this meeting" and she promptly excused herself.