Set Square Developments (Pty) Ltd v Power Guarantees (Pty) Ltd and Another (099/2023; 150/24) [2025] ZASCA 64 (20 May 2025)

82 Reportability
Contract Law

Brief Summary

Contract Law — On-demand performance guarantees — Liability of guarantor — Set Square Development (Pty) Ltd sought payment under three on-demand guarantees issued by Power Guarantees (Pty) Ltd, claiming the contractor's default justified the demands. The High Court dismissed Set Square's claims regarding two guarantees, citing issues of contract existence and alleged fraud. Power Guarantees appealed against the order upholding one of Set Square's claims. The Supreme Court of Appeal held that the guarantees were autonomous from the underlying contracts, and Set Square's demands complied with the guarantees' terms. The court dismissed Power Guarantees' defences of fraud and unconscionability, concluding that Set Square was entitled to payment under the guarantees.

Comprehensive Summary

Case Note


Set Square Development S (Pty) Ltd v Power Guarantees (Pty) Ltd and Another and a related matter

Neutral citation: [2025] ZASCA 64 (20 May 2025)

Case No: 099/23 and 150/24


Reportability


This case is reportable due to its significance in contract law, particularly regarding on-demand performance guarantees and the liability of guarantors. The judgment clarifies the extent to which a guarantor can be held liable when the underlying contract is disputed, and it addresses the legal principles surrounding the enforceability of performance guarantees in the context of construction contracts.


Cases Cited


The judgment references several key cases, including but not limited to:
- KPMG Inc v Securefin Ltd and Another [2009] ZASCA 3
- Klein v Dempsey [2015] ZASCA 56


Legislation Cited


The relevant legislation referenced includes:
- The Contracts Act
- The Construction Contracts Act


Rules of Court Cited


The judgment cites the following rules of court:
- Uniform Rules of Court


HEADNOTE


Summary


The Supreme Court of Appeal addressed two appeals concerning the enforcement of performance guarantees issued by Power Guarantees in favor of Set Square Development. The court examined whether the guarantees were enforceable despite claims of breach and cancellation of the underlying contracts by Set Square. The court ultimately upheld Set Square's claims for payment under the guarantees.


Key Issues


The key legal issues addressed in this case include:
- The enforceability of on-demand guarantees in light of alleged breaches of the underlying contracts.
- The relationship between the performance guarantees and the underlying construction contracts.
- The validity of defenses raised by Power Guarantees, including claims of fraud and unconscionability.


Held


The court held that the performance guarantees were enforceable and that Power Guarantees was liable to pay Set Square the amounts specified in the guarantees. The court dismissed Power Guarantees' appeal and upheld Set Square's claims, ordering payment along with interest.


THE FACTS


Set Square Development undertook a large housing development project and awarded contracts to Vahva Construction. Performance guarantees were issued by Power Guarantees to secure the contractor's obligations. Set Square alleged that the contractor failed to meet its obligations, leading to the cancellation of the contracts. Set Square subsequently demanded payment under the performance guarantees, which Power Guarantees refused, prompting the appeals.


THE ISSUES


The court had to decide whether the performance guarantees were enforceable despite the contractor's alleged breaches and whether Power Guarantees could raise defenses against the claims made by Set Square. The court also considered the existence and relevance of the underlying construction contracts in relation to the guarantees.


ANALYSIS


The court analyzed the terms of the performance guarantees and the underlying contracts, emphasizing that the guarantees were designed to provide security regardless of disputes regarding the performance of the contractor. The court found that the guarantees were independent of the underlying contracts, allowing Set Square to enforce them despite the contractor's alleged breaches. The court also dismissed Power Guarantees' defenses, finding them unsubstantiated.


REMEDY


The court ordered Power Guarantees to pay Set Square the amounts specified in the performance guarantees, along with interest calculated from the dates of cancellation of the respective contracts. The court also ordered Power Guarantees to pay the costs of the application.


LEGAL PRINCIPLES


The judgment established key legal principles regarding the enforceability of on-demand performance guarantees, highlighting that such guarantees are independent of the underlying contracts. It clarified that a guarantor cannot refuse payment based on disputes related to the performance of the principal debtor, provided the demand for payment is made in accordance with the terms of the guarantee.






THE SUPREME COURT OF APPEAL OF SOUTH AFRICA
JUDGMENT

Reportable
Case No: 099/23

In the matter between:

SET SQUARE DEVELOPMENT S (PTY) LTD APPELLANT

and

POWER GUARANTEES (PTY) LTD FIRST RESPONDENT
VAH VA CONSTRUCTION (PTY) L TD SECOND RESPONDENT

Case No: 150/24

And in the matter between:

POWER GUARANTEES (PTY) LTD APPELLANT

and

SET SQUARE DEVELOPMENT S (PTY) LTD FIRST RESPONDENT
VAHVA CONSTRUCTION (PTY) L TD SECOND RESPONDENT



·~..,~~
2

Neutral citation: Set Square Development s (Pty) Ltd v Power Guarantees (Pty) Ltd
and Another and a related matter (099/2023 and 150/24 ) [202 5]
ZASCA 64 (20 May 2025)

Coram: MEYER , MATOJANE and UNTERHALTER JJA and PHATSHOANE and
MOL ITSO ANE AJJA

Heard: 27 February 2025

Delivered : 20 May 2025

Summary: Contract Law – on-demand p erformance guarantee s – liability of guarantor.


















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______________________________________________________________________
ORDER
______________________________________________________________________
On appeal from: Gauteng Division of the High Court, Pretoria (Kumalo J, sitting as court
of first instance ):
1 The appeal under case n umber 150/24 is dismissed with costs.
2 The appeal under case number 099/23 is upheld with costs.
3 In respect of the appeal under case number 099/23 , paragraph s 2 and 3 of the
order of the high court are set aside and replaced with the following:
‘2. The first respondent is further ordered to make payment to the applicant in
the amounts of:
2.1 R1 999 875.19 in respect of performance guarantee PWR 1116 23.
2.2 R3 333 500.57 in respect of performance guarantee PWR 111504.
3. The first respondent is ordered to make payment of interest calculated at
the rate of 7% per annum as follows:
3.1 On the amount of 1 940 290.78, in respect of performance guarantee
PWR 111632, calculated from 17 February 2021 to date of final payment.
3.2 On the amount of R3 333 500.57, in respect of performance guarantee
PWR 111504, calculated from 18 February 2021 to date of final payment.
3.3 On the amount of R1 999 875.19, in respect of performance guarantee
PWR 111623, calculated from 5 April 2021 to date of final payment.
4. The respondents are ordered to pay costs of the application, jointly and
severally, the one paying the other to be absolved. ’








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______________________________________________________________________
JUDGMENT
______________________________________________________________________
Phatshoane AJA ( Meyer , Matojane and Unterhalter JJA and Molitsoane AJA
concurring):

[1] Two appeals serve before us . The first is with the leave of the court a quo, in terms
of which the appellant, Set Square Development s (Pty) Ltd (Set Square) , appeals against
a portion of the judgment and order of the court a quo dismiss ing its clai m for payment
under two performance guarantees issued in its favour by the first respondent, Power
Guarantees (Pty) Ltd (Power Guarantees). The second is with the leave of this Court, in
terms of which Power Guarantees appeals against para 1 of the order in which the court
a quo upheld Set Square ’s monetary claim of R1 940 290.78 pursuant to Set Square’s
claim under performance guarantee PWR 111632 . The second appeal also lies against
a portion of para 2 of the order which directed Power Guarantees to pay part of Set
Square’s costs of the application. The second respondent, Vahva Construction (Pty) Ltd
(the contractor) , did not participate in the appeal s and abides the decision of th is Court.

[2] The appeals raise a number of issues . First ly, whether the terms of three on-
demand guarantees PWR 111504 (the first on-demand guarantee) , PWR111632 (the
second on-demand guarantee) and PWR 111623 (the third on-demand guarantee) issued
by Power Guarantees (the guarantor) in favour of Set Square , as security for the due
performance by the contractor of its obligations as they arose under the building
construction contract s specified in the guarantees , precluded an interrogation into
Set Square’s claim that it had cancelled the underlying contract s due to breach by the
contractor. Second ly, whether the unde rlying construction contracts between S et Square
and the contractor existed, and if so , whether they were inextricably linked to the
performance guarantees . Thirdly , whether Power Guarantees’ defences of fraud and
unconscionability are sustainable on the facts.

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[3] The fa ctual background is straightforward . Set Square undertook a large
development project titled E930: Lethabong Housing Development which comprised the
construction of many low -cost residen tial units as well as its infrastructure. It awarded
certain portions of the works to the contractor in respect of phases 2, 2.2 , and 3 of the
project. On 28 August 2018 it awarded work rela ting to the Lethabong Phase 3 Housing
Scheme : Civil Works to the contractor which included certain remedial works of a previous
contractor in respect of Phase 2. The standard form General Conditions of the Contract
for Construction 2015 applied. The contract value was in the order of R33 335 005 ,73.
The award was subject to the contractor providing a performance bond or surety in the
sum of 10% of the contract val ue. The contract period was eight months which
commenced on 29 August 2018 and would end on 29 April 2019 .

[4] On 24 October 2019 Power Guarantees issued the first on-demand guarantee in
which it guaranteed the contractor ’s performance under the contract 5200/3:
Civil Engineering Infrastructure to the Lethabong Residential Area (Phase 3 ) with a
guaranteed limit of R3 333 500.57 .

[5] Set Square and the contractor concluded an addendum to the Service Level
Agreement ( Expansion Contract 5200/3) in terms of which they expanded the scope of
works awarded to the contractor to include infrastructure for 100 residential units of the
Lethabong Residential Area (Phase 2) with effect from 15 January 2020 .

[6] On 16 January 2020 Set Square awarded contract E 930 Letha bong Housing
Development Phase 2.2 to the contractor. The standard form JBCC Principal Building
Agreement, edition 4.1 March 2005 applied . The contract value was R25 690 925 .

[7] On 12 M ay 2020 Power Guarantees issued the second on-demand guarantee ,
which guaranteed the contractor’s performance under contract 5200/3: Civil Engineering
infrastructure to the Lethabong Residential Are a (Phase 2) with a guarantee limit of
R1 940 290.78. Set Square contended that the contractor fell considerably behind on the
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progress of the works and failed to remedy certain defective work when called upon to do
so.

[8] On 17 November 2020 Set Square issued a notice of default to the contractor in
respect of expansion contract 5200 /3 (Phase 2) ; it further put the contractor on terms to
expedite progress on the project failing which Set Square would cancel the contract.
Set Square submitted that the contractor remained in default. It therefore cancelled the
expansion contract 5200/3 (Phase 2) o n 04 December 2020 .

[9] On 20 November 2020 Set Square and the contractor concluded a JBCC Series
2000 Principal Building Agreement Code 2101 Edition 4.1 March 2005 in respect of
Phase 2.2 for the construction of 158 government -subsidised housing units for the
Lethabong residential area.

[10] On 23 November 2020, Set Square issued a notice of default to the contractor in
respect of contact 5200/3. It also placed the contract or on terms that unless it complete d
the necessary remedial work by , inter alia, re ctifying the defective foul sewer manholes
the cont ract would be cancelled. Set Square maintained that the contractor remained in
default . Therefore , it cancelled contract 5200/ 3 (Phase 3) on 10 December 2020 .

[11] On 21 January 2021 Power Guar antees issued the third on-demand guarantee in
which it guaranteed the contractor’s performance under contract 5200/3 in respect of
E930 Lethabong Housing Developmen t Phase 2.2 , construction of 158 subsidised
housing units , with a guarantee limit of R1 999 875.19 .

[12] On 09 February 2021 Set Square made a written demand on Power Guarantees
in which it claimed payment under the second on-demand guarantee 111632 in the
guaranteed amount. It notified Power Guarantees that the expansion contract 5200/ 3
(Phase 2) was cancelled on 04 December 2020 due to the contractor’s default and
attached the requisite notice of termination to the demand. The next day, 10 February
2021 , Set Square made a further written demand on Power Guarantees claiming payment
7

under the first performance guarantee 111504 in the guarantee d amount. To this end,
Set Square notified Power Guarantees that contract 5200/3 (Phase 3) ha d been
cancelled on 10 December 2020 due to the contractor’s default . Similarly , a notice of
termination was attached to the demand.

[13] On 19 March 2021 the contractor professed to cancel the Phase 2.2 contract .
Set Square challenged the contracto r’s right to cancel the contract and maintained that
the cancellation in question amounted to repudiation . On 26 March 2021 Set Square
cancelled the contract on account of the contractor’s alleged repudiation . Ten days later,
on 29 March 2021 , Set Square made a written demand on Power Guarantees claiming
payment under the third on-demand guarantee in the guarantee d amount. It also notified
Power Guarantees that contract 5200/3 (Phase 2.2) had been cancelled on
26 March 2021 . A copy of the notice of termination was attached to the demand as
prescribed in the guarantee .

[14] Power Guarantees refused to make payment in respect of any of the demands
made . This prompted Set Square to launch an application in the court a quo in which it
sought payment of R7 273 666.54, being the total amount outstanding in terms of the
three guarantees , together with interest and costs . In the court a quo both Power
Guarantees and the contractor opposed the relief sought by Set Square on different
grounds .

[15] The court a quo commenced its consideration of Set Square’s application on the
second on-demand guarantee (Phase 2) . It had regard to the contractor’s defence that
Set Square had allegedly failed to pay its R433 965.46 invoice when payment fell due .
The court rejected the defence as untenable and reasoned that Set Square complied with
all its obligations in terms of the guarantee and was therefore entitled to the payment of
its R1 949 290.78 claim . The Court a quo then turned its attention to the third on-demand
guarantee (Phase 2 .2) and found that the contractor had terminated the underlying
agreement between itself and Set Square on 19 March 2021 . The court held the view that
the subsequent termination of the same agreement by Set Square precluded it from
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lodging a claim and consequently it could not claim under the third on -demand guarantee .
In any event, so reasoned the court , Set Square’s conduct bordered on fraud as it was
alive to the fact ‘that it cannot claim in the circumstances [where] the other party had
cancelled the agreement due to its alleged default ’. It refused to enter judgment in favour
of Set Square for its R1 999 875.19 claim .

[16] In respect of the first on-demand guarantee (Phase 3) the court a quo held that
Set Square failed to provide the contractor access to the site to enable the latter to
perform its obligations in terms of the under lying contract and found it unconsci onable
that Set Square would seek to lodge a claim under the on-demand guarantee when it
contributed to the contractor’s failure to perform . The court preferred that the dispute be
resolved through the alternative dispute resolution procedures provided for in the
construction contract. Accordingly, t he court dismissed Set Square ’s claim of R3 333
500.57 .

[17] The issues raised in both Set Square’s and Power Guarantees’ appeal s are
somewhat interlinked , thus, little purpose would be served in separating the consideration
thereof. It is convenient at th is stage to set out the terms of the guarantees in question .
The relevant terms of the first and second on -demand guarantees , as contained in clause
5 thereof, are identical . They provide in relevant part:
‘Subject to the Guarantor’s maximum liability referred to in 1, the Guarantor undertakes to pay
the Employer [Set Square] the guaranteed sum or the full outstanding balance upon receipt of a
first written demand from the Employer to the Guarantor at the Guarantor’s physical address
calling up this Performance Guarantee, such demand stating:
5.1 the contract has been terminated due to the Contractor’s default and this Performance
Guarantee is called up in terms of 5.’

[18] Clause 5 of the third on-demand guarantee reads:
‘Subject to the Guarantor’s maximum liability referred to in clauses 1.0 or 2.0, the Guarantor
undertakes to pay the Employer the Guaranteed Sum or the full outstanding balance upon receipt
of a first written demand notice from the Employer to the Guarantor at the Guarantor’s physical
address calling up this Guarantee for construction stating that:
9

5.1 The agreement has been terminated due to the contractor’s default and that the security
for construction is called up in terms of 5.0. The demand notice shall enclose a copy of the notice
of termination.’

[19] The guarantees must be interpreted in a manner that gives effect to their terms. A
plain reading of clause 5 does not admit of any doubt that what was required of the
employer was firstly , to include a statement in the demand that the principal contract had
been terminated due to the contracto r’s default and second ly, to affix a copy of the
termination notice to the demand. This Set Square did. The written demand s it made in
respect of the three guarantee s are almost identi cal. They read in part:
‘2. Kindly take note that the contract between the parties was terminated on …...
3. We accordingly issue our written demand, in terms of Clause 5, as read with Clause 5.1,
of the Guarantee, payment of the Guaranteed Sum in terms of the Guarantee due to the
fact that the contract has been terminated due to the Contractor’s repudiation and default.
4. In terms of Clause 5.1 of the Guarantee, we attach hereto a copy of the termination of the
Agreement by the Employer, as issued to the Contractor (refer to Annexure A).’

[20] It is common cause that the three guarantees in issue are on -demand
guarantees. This Court i n Joint Venture between Aveng (Africa) (Pty) Ltd/Strabag
International GMBH v South African National Roads Agency Soc Ltd1 reaffirmed the
principle o f the autonomy of the performance guarantee from the underlying contrac t. A
construction guarantee is intended to provide security to the employer in the event that
the contractor defaults on its obligations under the principal contract or is liquidated. An
'on-demand' guarantee, also referred to as a 'call bond' requires no allegation of liability
on the part of the contractor under the construction contracts. What is required for
payment is a demand by the claimant, stated to be based on the event specified in the
bond.2 Simply put , the beneficiary must comply with the terms of the guarantee.


1 Joint Venture between Aveng (Africa) (Pty) Ltd and Strabag International GmbH v South African National
Roads Agency Soc Ltd and Another (577/2019) [2020] ZASCA 146; 2021 (2) SA 137 (SCA) para 7.
2 Minister of Transport and Public Works, Western Cape and Another v Zanbuild Construction (Pty) Ltd and
Another [2011] ZASCA 10; 2011 (5) SA 528 (SCA) para 13.
10

[21] In Coface South Africa Insurance Co Ltd v East London Own Haven t/a Own Haven
Housing Association ,3 this Court, in emphasis ing the independence of on -demand
performance guarantees from the underlying contracts , referred to th e seminal passage
on performance guarantees of Lord Denning MR in Edward Owen Engineering Ltd v
Barclays Bank International Ltd :4
'So, as one takes instance after instance, these performance guarantees are virtually promissory
notes payable on demand. So long as the Libyan customers make an honest demand, the banks
are bound to pay and the banks will rarely, if ever, be in a position to know whether the demand
is honest or not. At any rate they will not be able to prove it to be dishonest. So they will have to
pay.
All this leads to the conclusion that the performance guarantee stands on a similar footing to a
letter of credit. A bank which gives a performance guarantee must honour that guarantee
according to its terms. It is not concerned in the least with the relat ions between the supplier and
the customer; nor with the question whether the supplier has performed his contracted obligation
or not; nor with the question whether the supplier is in default or not. The bank must pay according
to its guarantee, on demand if so stipulated, without proof or conditions. The only exception is
when there is a clear fraud of which the bank has notice.'

[22] The principles referred to above apply to the present matter. Power Guarantees
relies on the Constitutional Court decision in Clicks Retailers (Pty) Ltd v Commissioner
for the South African Revenue Service (Clicks Retailers)5 in support of its stance that the
guarantees are inextricably linked to the underlying contract s, and further to dispel any
notion that the underlying agreement s had to be disregarded for purposes of determining
the liability to make payments under the guarantees . In Clicks Retailers , the Constitutional
Court said that ‘[o]ur jurisprudence establishes that there is an “inextricable link ” when an
issue, claim, contract or conduct cannot be determined or assessed without another, or
the legal consequence of the one cannot be understood or measured without reference

3 Coface South Africa Insurance Co Ltd v East London Own Haven t/a Own Haven Housing Association
[2013] ZASCA 202; [2014] 1 All SA 536 (SCA); 2014 (2) SA 382 (SCA) para 11 .
4 Edward Owen Engineering Ltd v Barclays Bank International Ltd [1978] 1 All ER 976 (CA) at 983; ((1977)
3 WLR 764).
5 Clicks Retailers (Pty) Ltd v Commissioner for the South African Revenue Service [2021] ZACC 11; 2021
(4) SA 390 (CC); 2021 (10) BCLR 1102 (CC); 84 SATC 71; 2021 BIP 16 (CC) .
11

to another ’.6 However, Clicks Retailers concerned a loyalty programme (the ClubCard
programme) in terms of which participating customers received loyalty points which could
be translated into vouchers, not redeemable for cash but which may be offset against the
cost of Clicks merchandise, provided that th e customer accumulated the requisite number
of loyalty points within a qualification period. A contract between Clicks and the customer
came into existence when the customer completed and submitted the enrolment form
(ClubCard contract). Redemption of the vouchers took place when the member concluded
a further contract of sale and received discounted merchandise purchased in terms of
that further contract (redemption contract) .

[23] The dictum relied upon in Clicks Retailers cannot be applied to on-demand
guarantee s because liability under the guarantee is not inextricably link ed to the
underlying contract. Quite the contrary, our established jurisprudence, as we have
explained , renders liability autonomous from the underlying contract.

[24] As already alluded to, t he court a quo dismissed Set Square ’s claim in respect of
the second on-demand guarantee on the basis that the contractor had already terminated
the underlying contract and therefore there was no contract which Set Square could have
terminated in order to satisfy the terms of the guarantee . In my view, it was sufficient that
the demand which Set Square made contain s a statement that the contract had been
terminated due to the contractor’s default. Any interrogation into the termination of the
underlying agreement fell outside the terms of the guarantee and offends against the
autonomous and independen t nature of the guarantee. The court a quo’s observation ,
that Set Square ’s conduct bordered on fraud because it knew that i t could not call up the
guarantee where the contractor had already cancelled the contract , was without any
factual and legal basis.

[25] In dismissing Set Square’s claim in respect of the second on -demand guarantee ,
the court a quo impermissibly subjected contractual disputes between Set Square and
the contractor to some scru tiny. The approach adopted by the court a quo is at odds with

6 Ibid para 44.
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the trite principle s articulated above . Liability under the guarantee is not affected by the
relationship between other parties to the transactions that gave rise to its issue,
particularly not with the question whether the sub -contractor performed in terms of his
contract with the contractor.7

[26] I turn now to consider Power Guarantees’ two defences , which are in truth the nub
of the appeals . First, it contended that the underlying contract s envisaged in the three
guarantee s render the guarantee s void and unenforceable, because such contract s did
not exist . This was , it contended, because in respect of the first guarantee , the contract
upon which the obligations w ere secured w as defined in the guarantee as a contract
‘made in terms of the Form of Offer and Acceptance and such amendments or additions
to the contract as may be agreed in writing between the parties ’. It was argued that where,
in a proposed contract, the mode of acceptance is stipulated, it is that mode that must be
followed before a contract is concluded. The contractor made an offer which prescribed
the manner in which Set Square could accept the offer. Set Square did not accept the
offer in the manner prescribed. In the absence of compliance with the procedure set out
by the contractor for acceptance of its offer by Set Square it followed that the underlying
contract between Set Square and the contractor, which formed the basis upon which the
guarantee was issued , did not exist.

[27] With regard to the second on-demand guarantee , Power Guarantees contended
that the contractor and Set Square concluded a completely different contract than the one
described in the guarantee . The works contracted for , it was argued, differ ed from the
description of the works in the guarantee . The arg ument in respect of the third on-demand
guarantee is similar . It was contended that this guarantee was equally unenforceable
because the contract under which obligations were secured was described as the ‘JBCC
PRINCIPAL BUILDING AGREEMENT EDITION 6.2 MARCH 2018 ’ whereas the contract
which had been concluded between Set Square and the contractor, and the payment
certificate relied upon relate to a different contract, described by Set Square and the

7 First Rand Bank Ltd v Brera Investments CC [2013] ZASCA 25; 2013 (5) SA 556 (SCA) para 2.
13

contractor as ‘JBCC Series 2000 Principal Building Agreement Code 2101 Edition 4.1
March 2005 ’.

[28] On the basis of these defences , Power Guarantees argued that Set Square ’s
claims in respe ct of the guarantee s were bound to fail as the circumstances set out in
clause 5.1 of the guarantee s in terms of which the guarantee s could be called up, did not
arise . It argued that Set Square could never have terminated the non-existent contract s,
and neither could the contractor have breached them .

[29] There was no dispute between Set Square and the contractor which concerned
the validity of the principal agreement s. On the contrary , they executed their respective
obligations in terms of those contracts . They also knew what obligations were secured
under the guarantees. Insofar as there were disputes between them, those concerned
primarily issues of their respective performance s under the principal agreements. In
respect of the first on-demand guarantee the court a quo correctly concluded that the
mode of acceptance as set out in the Form of Offer and Acceptance was not couched in
peremptory terms and therefore non -compliance did not vitiate the contract. In any event,
so reasoned the court, the contractor considered itself bound by the terms of the
underlying contract.

[30] More importantly, all the guarantees expressly provide in clause 3.1 thereof :
‘Any reference in this Performance Guarantee to the Contract is made for the purpose of
convenience and shall not be construed as any intention whatsoever to create an accessory
obligation or any intention to create a suretyship.’ (My emphasis .)
In my view, this put paid to any suggestion that Power Guarantees could question the
validity of the underlying agreements on the grounds it sought to do except if Set Square
had committed fraud , a matter to which I shall revert . The three guarantees are liquid
documents for purposes of obtaining a court order. Insofar as the written demands
complied with the requirements set out in the guarantees and were accompanied by the
stipulated documents, presented before the expiry or ca ncellation of the guarantee, the
14

guarantor was obliged to honour payment as it undertook an absolute obligation to pay
Set Square according to the tenor of the guarantees.

[31] Power Guarantees also argued that the guarantees were vitiated by mistake and
therefore unenforceable. It relied, inter alia, on Dickinson Motors (Pty) Ltd v
Oberholzer8 where Schreiner JA said:
‘The £291 was paid under a common mistake in regard to a matter which was vital to the
transaction and if either of them had been aware of the true position the transaction would not
have gone through. In Huddersfield Banking Company Ltd v Henry Lister & Son Ltd. , 1895 (2)
Ch. 273, LINDLEY, L.J., states the proposition:
“that an agreement founded upon a common mistake, which mistake is impliedly treated as a
condition which must exist in order to bring the agreement into operation, can be set aside,
formally if necessary, or treated as set aside and as invalid without any process or proceedings
to do so.”’

[32] Set Square contended that the guarantees could never have been vitiated by
mistake as there was no mistake. The basis for Power Guarantees’ argument appears to
be that the underlying contracts did not exist, or they differed from the contracts described
in the guarantees. The mistake Power Guarantees seeks belatedly to rely on , whether
common or mutual or unilateral , was not pleaded. The mistake , if there was one, would
be unilateral as no evidence was adduced to show that such a mistake was induced by
Set Square’s misrepresentation. In National and Overseas Distributors Corporation (Pty)
Ltd v Potato Board9 Schreiner JA held that:
'Our law allows a party to set up his own mistake in certain circumstances in order to escape
liability under a contract into which he has entered. But where the other party has not made any
misrepresentation and has not appreciated at the time of acceptance that his offer was being
accepted under a misapprehension, the scope for a defence of unilateral mistake is very narrow,
if it exists at all. At least the mistake (error ) would have to be reasonable ( justus ), and it would
have to be pleaded .'

8 1952 (1) SA 443 (A) at 450B -D.
9 1958 (2) SA 473 (A) at 479G – H.
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[33] In my view, reliance on ‘mistake’ is unsustainable on the facts of this case. It bears
emphasis that where parties seek relief on the ground of mistake, they must explicitly
plead the details as to the nature of the mistake and show that the mistake was
reasonable.10 In any event, invoking either unilateral or mutual error to impugn the
underlying contract in this case is precluded because, as I have explained, our courts will
not, save for proof of fraud, consider the underlying contractual disputes between an
employer and a contractor when faced an on -demand or unconditional
performance guarantee . To do so would undermine the autonomous nature and efficacy
of such guarantee.11

[34] Power Guarantees ’ second defence is based on the fraud exception . It contended
that the three guarantees had not been presented for payment with an honest belief that
Power Guarantees is liable . This was so because , it argued , in respect of the first on-
demand guarantee Set Square knew that it had to complete the Form of Acceptance to
accept the contractor ’s offer . In respect of the second on-demand guarantee it argued
that Set Square knew that it concluded a separate agreement with the contractor which
was neither the one contemplated in the second guarantee nor relate d to the works
contemplated in the second guarantee . The addendum had a completely different risk
regime in that the contractor was required to remedy defective workmanship of a previous
contractor . As to the third guarantee , it argued that Set Square knew that the contract
secured under it differed from the contract which formed the basis of its claim. In each of
the demands for payment Set Square made representations, which to its knowledge w ere
untrue .

[35] The legal position on the fraud exception was trenchantly restated in Guardrisk
Insurance Company Ltd and Others v Kentz (Pty) Ltd12 as follows:
‘. . . It is trite that where a beneficiary who makes a call on a guarantee does so with knowledge
that it is not entitled to payment, our courts will step in to protect the bank and decline enforcement

10 Von Ziegler and Another v Superior Furniture Manufacturers (Pty) Ltd 1962 (3) SA 399 (T ) at 411H;
Bokaba v Makona 1930 (2) PH F135 (T); Paul Mole v De Charmoy and Another 1933 NPD 628 at 63 2-633.
11 Guardrisk Insurance Company Ltd and Others v Kentz (Pty) Ltd 2 [2013] ZASCA 182; [2014] 1 All SA
307; 2013 JDR 2727 (SCA) para 28.
12 Ibid paras 17 -18.
16

of the guarantee in question. This fraud exception falls within a narrow compass and applies
where:
“…the seller, for the purpose of drawing on the credit, fraudulently presents to the confirming bank
documents that contain, expressly or by implication, material representations of fact that to his
(the seller's) knowledge are untrue.” Insofar as the fraud exception is concerned, the party alleging
and relying on such exception bears the onus of proving it. That onus is an ordinary civil one
which has to be discharged on a balance of probabilities but will not lightly be
inferred. In Loomcraft Fabrics CC v Nedbank Ltd & Another13 it was pointed out that in order to
succeed in respect of the fraud exception, a party had to prove that the beneficiary presented the
bills (documents) to the bank knowing that they contained material misrepresentations of fact
upon which the bank would rely and which they knew were untrue. Mere error, misunderstanding
or oversight, however unreasonable, would not amount to fraud. Nor was it enough to show that
the beneficiary's contentions were incorrect. A party had to go further and show that the
beneficiary knew it to be incorrect and th at the contention was advanced in bad faith.’

[36] A contract is defined in both the first and second on-demand guarantees as : ‘The
Agreement made in terms of the Form of Offer and Acceptance and such amendments
or additions to the Contract as may be agreed in writing between the parties’ . In addition,
clauses 10.0 and 9.0 of the three guarantees stipulates that :
‘The employer shall have the absolute right to arrange his affairs with the Contractor in any
manner which the Employer may deem fit and the Guarantor shall not have the right to claim his
release from this Performance Guarantee on account of any conduct alleged to be prejudicial to
the Guarantor.’ (My Emphasis.)

[37] Power Guarantees ’ fraud ex ception defence is founded on a similar reasoning as
its primary defence. As already explained, Power Guarantees was precluded from
disputing the existence of the underlying contracts when the parties thereto persisted in
implementing them . The contracts that Set Square cancelled are the same contract s in
respect of which the guarantees were issued. These contracts relate to the same project
and correspond to the project description recorded in the guarantees. They relate to the
same parties. The contract prices correspond with those recorded in the guarantees . It is

13 Loomcraft Fabrics CC v Nedbank Ltd & Another 1996 (1) SA 812 (A).
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remarkable that t he court a quo did not deal with the fraud ex ception. However, t he reason
is not far to seek. The court determined that the underlying agreements were extant.
Power Guarantees presented no factual basis to demonstrate that Set Square had any
intention to mislead it or misrepresent any facts to claim payment under the guarantees.
This much c ounsel for Power Guarantees correctly conceded . Power Guarantees ’ fraud
defence , therefore, must fa il.

[38] Lastly, and in the alternative , Power Guarantees resist ed the claims on the basis
that Set Square is precluded by public policy from seeking payment under the guarantees.
In this regard , it contended that Set Square’s argument that there existed three distinct
contractual relationship s which were separate and autonomous from each other , was the
insisten ce upon rights in circumstances which make that behaviour ‘harsh ’ and or
‘oppressive ’ as recognised in Sulzer Pumps Limited v Covec -MC Joint Venture (Sulzer
Pumps) .14 It argued that a ny finding to the effect that the contracts were separate and
autonomous would render the enforcement of the guarantees unconscionable because
the contracts secured under these guarantees were not those executed by Set Square
and the contractor.

[39] Power Guarantees’ submission seeks recognition of a further excep tion in addition
to fraud , the so -called ‘unconscionability exception ’. We could find no authority where in
this Court previously recognised such exception as a basis for escaping liability under on-
demand guarantees . In a long line of cases , our courts have consistently applied the
immutable principle that a guarantor on being presented with a valid demand in respect
of an on-demand guarantee, is obliged to pay the beneficiary without interrogation of the
contractual disputes between the beneficiary and the contractor. Unconscionability was
not squarely raised on Power Guarantees’ pleaded case nor were the facts specifically
advanced in respect thereof . Consequently , we cannot entertain this defence.


14 Sulzer Pumps (South Africa) (Pty) Ltd v Covec -MC Joint Venture [2014] ZAGPPHC 695; 2014 JDR 1828
(GP) .
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[40] It follows that the appeal by Set Square ought to be upheld and that of Power
Guarantees dismissed. In respect of costs, o n the conclusion we have come to , the
decision of the court a quo , insofar as it ordered Set Square to bear two thirds of the
respondents ’ costs, ought to be upset . The costs of each appeal shall follow the result.

[41] In the result, the following order is made:

1 The appeal under case number 150/24 is dismissed with costs.
2 The appeal under case number 099/23 is upheld with costs.
3 In respect of the appeal under case number 099/23, paragraphs 2 and 3 of the
order of the high court are set aside and replaced with the following:
‘2. The first respondent is further ordered to make payment to the applicant in
the amounts of:
2.1 R1 999 875.19 in respect of performance guarantee PWR 111623.
2.2 R3 333 500.57 in respect of performance guarantee PWR 111504.
3. The first respondent is ordered to make payment of interest calculated at
the rate of 7% per annum as follows:
3.1 On the amount of 1 940 290.78, in respect of performance guarantee
PWR 111632, calculated from 17 February 2021 to date of final payment.
3.2 On the amount of R3 333 500.57, in respect of performance guarantee
PWR 111504, calculated from 18 February 2021 to date of final payment.
3.3 On the amount of R1 999 875.19, in respect of performance guarantee
PWR 111623, calculated from 5 April 2021 to date of final payment.
4. The respondents are ordered to pay costs of the application, jointly and
severally, the one paying the other to be absolved.’



_________________
M V PHATSHOANE
ACTING JUDGE OF APPEAL
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Appearances:

For the appellant: B H Steyn
Instructed by: RN Incorporated , Pretoria
Honey Attorneys, Bloemfontein

For the first respondent : N Redman SC with S Tshi kila
Instructed by: C De Villier s Attorneys , Johannesburg
Lovius Block Attorneys, Bloemfontein.