The Competition Commission initiated a complaint in January 2009 alleging that four firms in the mining roof bolts market (RSC, Duraset, DSI, and Videx) participated in a cartel from at least June 2004 to June 2008. RSC obtained corporate leniency. Duraset settled for an administrative penalty of R12.9 million (5% of turnover). The Commission referred the complaint to the Tribunal in September 2010, alleging customer allocation, market share maintenance, and collusive tendering in various instances during 2004-2006, including: (a) Amplats reverse auctions in June 2004 and May 2005; (b) Goldfields reverse auction in October 2004; (c) tenders by Xstrata (mid-2005), Harmony (October 2005), and Anglo Coal (first half 2006). DSI and Videx denied an overarching cartel agreement, claiming only isolated ad hoc collusion. They raised prescription defenses under s 67(1) of the Act (3-year limitation from cessation of practice) for incidents before 26 January 2006. The Tribunal found no overarching agreement and held most complaints time-barred except the 2005 Amplats auction. It imposed administrative penalties on DSI (R1,848,301) and Videx (R4,765,502). Videx appealed. The Commission cross-appealed (only against Videx), arguing there was an overarching agreement and the Tribunal erred in refusing to adjudicate the Anglo Coal incident.