In November 2017, she was appointed as the chief operating officer of
Business Leadership South Africa (BLSA), working under her mentor, Bonang Mohale, who had recently been appointed as BLSA CEO. Simultaneously, between 2018 and 2022, Mavuso was a member of the board of
Eskom; she was appointed to her seat in January 2018, when the board was chaired by
Jabu Mabuza. 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. The
Ministry of Public Enterprises called Mavuso's conduct "unbecoming", She resigned from the Eskom board in September 2022. Mavuso also served on the board of
Business Unity South Africa. == Personal life ==