Mr Riddle previously held the positions of Commercial Director and Group Corporate & External Affairs Director of lllovo Sugar Africa (Pty) Ltd (lllovo) for seven years and three years respectively. He held a number of senior management positions within lllovo, including General Manager of the lllovo South African Operations prior to his appointment as a director. Mr Riddle also played a key role in looking after the lllovo Joint Ventures and Associate companies in the group, including Gledhow Sugar Company, Glendale Distilling Company, Lacsa (Pty) Ltd and Relax Limited. He was also chairman of a number of the lllovo retirement funds. He is a past chairman of the South African Sugar Millers' Association and the Ethanol Producers' Association of South Africa.