The applicants, American Natural Soda Ash Corporation and CHC Global (Pty) Ltd, were involved in competition complaint proceedings before the Competition Tribunal initiated by the Competition Commission. Botswana Ash (Pty) Ltd participated as an intervenor, represented by Webber Wentzel Bowens. The applicants sought the disqualification of Botswana Ash as an intervenor and of its legal representatives on the basis of alleged 'side-switching' and breach of confidentiality by Mr Dingley, a former employee of the Competition Commission who later joined Webber Wentzel Bowens. The Tribunal refused the disqualification application. An appeal to the Competition Appeal Court (CAC) was dismissed. The present matter concerned an application for leave to appeal to the Supreme Court of Appeal against the CAC’s earlier dismissal.