Zimbabweans search for alternatives as drought hurts.
Mkhwebane, 46, a lawyer whose most recent job was with the State Security Agency (SSA), has also worked as a director at Home Affairs.
Answering questions in parliament in Cape Town, Gordhan also said the government would be working hard to stave off credit rating downgrades
Johan Burger said on Thursday after reporting the bank's annual results that a downgrade would negatively impact lending and lead to banks tightening credit extension. The central bank has forecast growth at zero percent this year.
Police in the southern African nation issued an official notice last Thursday prohibiting all demonstrations in the capital Harare