Intech Instruments v Transnet Limited t/a South African Port Operations

Transnet Limited, through its division South African Port Operations, awarded Intech Instruments a tender in early 2006 for the refurbishment and optional upgrade of the manganese bulk handling terminal at the Port Elizabeth harbour. The contract was concluded on the basis of Transnet’s tender invitation, Intech’s tender submission, and Transnet’s acceptance, later supplemented by Transnet’s standard General Conditions of Contract (GCC 97). Intech, a small firm, intended to subcontract substantial portions of the work. During execution, disputes arose regarding the scope of Intech’s contractual obligations, performance delays, safety non-compliance, and payment. Transnet issued several ‘stop works’ orders citing safety breaches under the Occupational Health and Safety Act. Intech alleged these amounted to repudiation, cancelled the contract in August 2007, and sued for unpaid amounts, retention monies, and loss of profits. Transnet countered that Intech had repudiated the contract through non-performance and breaches, cancelled in response, and counterclaimed for damages and amounts certified as owing following completion of the works by others at far greater cost. The High Court dismissed Intech’s claims and upheld Transnet’s counterclaim, prompting this appeal.

The appeal was dismissed with costs, including the costs of two counsel. The High Court’s dismissal of Intech’s claims and upholding of Transnet’s counterclaim was confirmed.

The judgment is significant for South African contract and construction law as it clarifies the interpretation of performance-based, lump-sum construction contracts and affirms that repudiation may be established by conduct, irrespective of motive. It further confirms that interim certificates do not constitute self-standing claims once a construction contract is lawfully cancelled, providing important guidance on the consequences of cancellation in construction disputes.