Industrial Development Corporation of SA (Pty) Ltd v Dale Clifford Silver

The appellant (IDC) sued the respondent (Silver) for payment of money allegedly due under a deed of suretyship dated 10 December 1999. The deed of suretyship specified that the respondent was surety for a debt of R6,000,000 to be lent in terms of a loan agreement, but the space for the principal debtor's name was left blank. The appellant annexed a loan agreement between it and Auto Spares and Accessories (Pty) Ltd t/a Engineplan, also signed on 10 December 1999 for R6,000,000, and alleged this was the loan agreement referred to in the deed of suretyship. The loan agreement was signed by the respondent both personally and on behalf of Engineplan, and provided that any advance was conditional on the respondent guaranteeing Engineplan's obligations. The respondent excepted to the Declaration on the basis that the deed of suretyship was invalid for non-compliance with section 6 of the General Law Amendment Act 50 of 1956, as it did not identify the principal debtor and extrinsic evidence could not cure the defect.

• Whether a deed of suretyship that does not identify the principal debtor can be saved from invalidity by reference to a loan agreement which does identify the principal debtor
• Whether the principle of incorporation by reference applies to contracts of suretyship governed by section 6 of Act 50 of 1956
• Whether extrinsic evidence is admissible to identify a document referred to in a deed of suretyship for purposes of incorporation by reference
• What constitutes the 'terms' that must be embodied in writing under section 6 of Act 50 of 1956
• Whether the identity of the principal debtor is a material term of a contract of suretyship

The appeal was upheld with costs. The order of the court a quo was set aside and substituted with an order dismissing the exception (paragraphs 1 to 4 of the Notice of Exception) with costs.

The binding legal principles established are: (1) The identity of the principal debtor is a material term of a contract of suretyship that must be embodied in writing to comply with section 6 of Act 50 of 1956. (2) The principle of incorporation by reference applies to contracts of suretyship governed by section 6. (3) Extrinsic evidence is admissible to identify a document referred to in a deed of suretyship for purposes of incorporation by reference, provided that it appears ex facie the deed of suretyship that the document sought to be incorporated is the document giving rise to the indebtedness secured by the suretyship. (4) Such extrinsic evidence does not violate the parol evidence rule because it merely relates the written abstraction to concrete physical phenomena and does not constitute evidence of prior negotiations or consensus between the parties. (5) Whether the parties themselves or third parties give such evidence is immaterial, provided it does not concern negotiations or consensus.

The Court observed that in Fourlamel (Pty) Ltd v Maddison, this Court had only assumed that the principle of incorporation by reference applied to contracts of suretyship and refrained from finally deciding the issue. Scott JA expressed satisfaction that once the principle is held to apply to sales of land, there can be no justification for holding it not applicable to contracts of suretyship. The Court also noted that the question of whether the loan agreement can actually be identified as the one referred to in the deed of suretyship is a question of fact that will have to be decided by the trial court in due course. The judgment corrects a misconception that extrinsic evidence for identification purposes may not be given by the parties themselves, clarifying that it is admissible from any source, provided it does not concern negotiations or consensus.

This case is significant in South African law of suretyship for clarifying the application of incorporation by reference to deeds of suretyship under section 6 of Act 50 of 1956. It establishes important principles regarding the admissibility of extrinsic evidence to identify documents incorporated by reference, distinguishing between evidence that relates written contracts to physical phenomena (admissible) and evidence of prior negotiations or consensus (inadmissible). The judgment provides clear guidance on when extrinsic evidence may be used to cure apparent defects in suretyship agreements, requiring that it must be apparent from the face of the deed of suretyship that the incorporated document gives rise to the secured indebtedness. The case resolves a conflict between Trust Bank van Afrika Bpk v Sullivan and Trust Bank of Africa Ltd v Cotton, holding the latter to be correctly decided. It reinforces that while the identity of the principal debtor is a material term that must be in writing, this requirement can be satisfied through proper incorporation by reference coupled with admissible extrinsic evidence for identification purposes.