The Bus Industry Restructuring Fund was established pursuant to a tripartite agreement between the Minister of Transport, the South African Bus Operators' Association, and labour unions to facilitate restructuring of the passenger bus industry. Participating bus operators were required to make contributions to the Fund. Kwa-Zulu Transport (Pty) Ltd (KZT), a participating operator with subsidised contracts from the Kwa-Zulu Natal Department of Transport, was placed under liquidation in August 2001 with outstanding contributions to the Fund. KZT's liquidators sold its bus transportation business to Basfour 2488 (Pty) Ltd (fourth respondent) in terms of an agreement of sale. Basfour assumed liability for amounts KZT owed to the Fund and took over the subsidised contracts. Basfour subsequently assigned its rights and obligations to the first, second, or third respondents, who each conducted different depots of the business as independent enterprises. The Fund claimed the outstanding amounts from the respondents based on these assignments. The respondents filed exceptions, arguing that clause 19.5 of the sale agreement prohibited Basfour from assigning 'any of its obligations in terms of this agreement' without prior written consent of the liquidators, which consent was not alleged in the particulars of claim.