Mteto Nyati knew years ago in Mthatha, working at his mother's trading store, that he wanted to fix and build things. After completing his studies in Mechanical Engineering at Natal University, he headed for Johannesburg to take up a position at Afrox. He was the only black engineer and the advice he received was 'don't mess up'. He didn't. Today he is one of South Africa's top CEOs, having steered Microsoft SA and MTN SA out of troubled times. He is currently guiding the transition of Altron.