The appellants (Netstar, Matrix and Tracker) were leading providers of stolen vehicle recovery (SVR) systems in South Africa from the 1990s. Tracetec complained to the Competition Commission that the appellants, as members of the Vehicle Security Association of South Africa (VESA) SVR Committee, agreed on accreditation criteria that prevented new entrants from entering the market for tracking and recovery of motor vehicles. Between 1996-1999, performance standards for SVR systems were developed through workshops attended by tracking companies, VESA and the South African Insurance Association (SAIA). The standards required a minimum client base of 3000, at least one year of operation, at least 100 recoveries and a specific recovery rate. Provisional approval was initially available but was discontinued in April 2000 at SAIA's request. Most SAIA member insurers required VESA accreditation for premium discounts. In 2003, a financial guarantee option was introduced as an alternative to performance criteria. The appellants withdrew from VESA in May 2004. The Competition Tribunal found that the appellants contravened s 4(1)(a) of the Competition Act 89 of 1998 by concluding an agreement and/or engaging in a concerted practice that substantially prevented or lessened competition.