Transnet SOC Limited v Total South Africa (Pty) Limited and Another

In 1967, the South African government concluded an agreement with Total South Africa (Pty) Ltd to transport crude oil from Durban to an inland refinery in Sasolburg. The agreement contained a "neutrality principle" to ensure the inland refinery was not disadvantaged by transportation costs compared to coastal refineries. This was necessary to attract Total's participation in the inland refinery project. In 1991, a variation agreement was concluded, maintaining the neutrality principle but with a different tariff formula pegged to increases in transportation costs for refined petroleum products (petrol, diesel, avtur). The variation agreement included clause 5, which provided for termination on three years' notice "subject to the arrangement that a full agreement of conveyance for crude oil is being prepared and that such agreement will embody the contents of this letter and supersede this letter". Transnet SOC Limited (successor to the government) gave three-year notice of termination in September 2017. Total and Sasol Oil (Pty) Ltd (which jointly own Natref, the inland refinery) disputed the validity of the termination and claimed contractual damages for alleged overcharging when Transnet departed from the neutrality principle in 2008 and 2011.

• Whether the variation agreement was terminable and, if so, whether it was validly terminated by Transnet's three-year notice
• The proper interpretation of clause 5 of the variation agreement, particularly the phrase 'subject to the arrangement that a full agreement of conveyance for crude oil is being prepared'
• Whether the claims for contractual damages for overcharging disclosed a cause of action in the absence of contract cancellation
• Whether cancellation of a contract is a prerequisite for claiming a refund for contractual breach
• Whether an overcharge claim must be brought under enrichment law (condictio indebiti) rather than contract law
• Whether sections 195 and 217 of the Constitution rendered the variation agreement contrary to public policy

1. Leave to appeal granted only in respect of the questions whether the variation agreement was terminable and, if it was, whether it was terminated validly. 2. The appeal was allowed and it was declared that the variation agreement was terminable, was terminated validly, and came to an end on 13 September 2020. 3. The High Court order was set aside insofar as it related to the termination questions and costs. 4. Each party to pay its own costs in the Constitutional Court and in the High Court.

The binding legal principles established are: (1) In interpreting contracts, courts must consider the language used in light of grammar and syntax, the context in which the provision appears, the apparent purpose, and the material known to those responsible for its production (applying Endumeni); (2) Where more than one interpretation is possible, a sensible meaning is to be preferred to one that leads to insensible or unbusinesslike results or undermines the apparent purpose of the document; (3) Where a contract is silent on its duration, whether it is terminable on reasonable notice is a matter of construction (applying Putco, Amalgamated Beverage Industries, and Plaaskem); (4) Business letters should not automatically be interpreted with the technical precision expected of lawyer-drafted contracts; phrases like "subject to" should be interpreted in context rather than automatically as introducing suspensive conditions; (5) There is no requirement in South African law that a party claiming damages for breach of contract must first cancel the contract; a party can claim specific performance together with damages for defective or late performance; (6) The notion of a point of law being "arguable" for purposes of section 167(3)(b)(ii) entails some degree of merit - the argument must have a measure of plausibility; (7) For an issue to engage the Constitutional Court's general jurisdiction, it must not only be arguable but also be of general public importance (transcending narrow interests of litigants) and be one which "ought to be considered" by the Court (interests of justice).

The Court made several important non-binding observations: (1) The Court noted concerns about parties being bound in perpetuity to contracts but did not need to resolve the academic controversy about whether there should be a presumption in favor of terminability; (2) The Court observed that the public law context was relevant to determining whether the matter was of general public importance, noting that Transnet operates economically strategic and crucial finite public infrastructure, and one object of the Petroleum Pipelines Act is promoting equitable access to pipelines; (3) The Court noted that even though the variation agreement was terminated, this does not necessarily mean Transnet no longer has an obligation to convey crude oil to Natref, only that the conveyance is no longer regulated by contract, and that section 20(1)(f) of the Petroleum Pipelines Act provides protection for the Natref refinery's access to pipeline capacity; (4) The Court suggested that public law remedies may be available to Total and Sasol if Transnet or Nersa fail to observe legal constraints when making decisions regarding access to and terms for use of the pipeline; (5) The Court left open the complex question of whether claims for overcharges can be brought in contract or must be brought under enrichment law (condictio indebiti), noting this raised imponderables including whether tariff-setting itself constitutes contractual performance and whether payment under protest affects the analysis; (6) The Court emphasized its reluctance to decide common law issues as a court of first and last instance without the benefit of High Court and Supreme Court of Appeal analysis, citing Tiekiedraai.

This case is significant for South African law on several fronts: (1) It clarifies principles of contractual interpretation, particularly regarding termination clauses in long-term commercial agreements; (2) It addresses when contracts of indefinite duration are terminable on reasonable notice versus being perpetual; (3) It establishes that contractual damages for overcharging can be claimed without first canceling the contract, affirming the principle that a party can claim specific performance together with damages for defective performance; (4) It demonstrates the Constitutional Court's approach to jurisdiction and leave to appeal, particularly the requirement that issues ought to be considered by the Court (interests of justice) and the reluctance to decide common law issues raised for the first time; (5) It has important implications for public procurement and contracts involving strategic public infrastructure, particularly regarding the interpretation of apartheid-era commercial arrangements; (6) The case illustrates the application of modern constitutional values (sections 195 and 217) to historical contractual arrangements; (7) It provides guidance on avoiding absurdity and giving effect to all words in contractual interpretation, consistent with Endumeni principles.