Case Details
- Citation: [2019] SGHC 267
- Court: High Court of the Republic of Singapore
- Decision Date: 12 November 2019
- Coram: Ang Cheng Hock J
- Case Number: Originating Summons No 439 of 2019
- Hearing Date(s): 9 May, 14 June, 15 July 2019
- Plaintiff: Soon Li Heng Civil Engineering Pte Ltd
- Respondents: (1) Samsung C&T Corporation; (2) United Overseas Bank Limited
- Counsel for Plaintiff: Poon Guokun Nicholas (Breakpoint LLC)
- Counsel for First Respondent: Lee Peng Khoon Edwin and Er Hwee Lee Danna Dolly (Eldan Law LLP)
- Practice Areas: Credit and Security; Performance bond; Unconscionability
Summary
In Soon Li Heng Civil Engineering Pte Ltd v Samsung C&T Corp and another [2019] SGHC 267, the High Court of Singapore addressed the critical intersection between the autonomy of performance bonds and the "temporary finality" of the statutory adjudication regime under the Building and Construction Industry Security of Payment Act ("SOPA"). The dispute arose when the first defendant, Samsung C&T Corporation ("Samsung"), attempted to call on a performance bond provided by the plaintiff, Soon Li Heng Civil Engineering Pte Ltd ("Soon Li Heng"), following a series of payment disputes and a prior adjudication determination that had largely favoured the plaintiff.
The core doctrinal contribution of this judgment lies in the court's refinement of the "unconscionability" exception to the general rule that performance bonds are payable on demand. While Singapore law maintains a high threshold for establishing unconscionability, Ang Cheng Hock J held that a call on a bond is unconscionable if it is motivated by an "improper purpose." In this instance, the court found that Samsung’s call was an attempt to effectively circumvent and "claw back" sums that had been awarded to the plaintiff in a binding SOPA adjudication (referred to as "1AD"). By attempting to use the performance bond to re-litigate measurement methodologies that the adjudicator had already rejected, Samsung’s conduct was found to lack the requisite bona fides.
The court granted the plaintiff’s application for an injunction to restrain the call on the bond. This decision serves as a significant warning to main contractors that performance bonds cannot be used as a "self-help" mechanism to undermine the statutory finality of adjudication determinations. The judgment emphasizes that while the SOPA regime provides for "temporary finality," that finality must be respected until the dispute is finally resolved through litigation or arbitration. Any attempt to use a demand guarantee to subvert this process may be characterized as unconscionable conduct warranting judicial intervention.
Ultimately, the case reinforces the principle that the court will look beyond the formal validity of a demand to examine the underlying motivation and factual context. Where a beneficiary’s call is transparently designed to neutralize a statutory payment obligation without a fresh, legitimate basis, the court will exercise its equitable jurisdiction to protect the integrity of the payment regime and the commercial purpose of the bond.
Timeline of Events
- 22 April 2016: The parties entered into a Re-Measurement Sub-Contract ("the Subcontract") for excavation and disposal works for the Marine Parade Station and Tunnels for the Thomson-East Coast Line.
- 31 August 2018: Soon Li Heng served Payment Claim No 20 ("PC 20") on Samsung, claiming a sum of S$3,278,935.95.
- 9 November 2018: An adjudication determination ("1AD") was issued in SOP 372/2018, determining that Samsung was liable to pay Soon Li Heng the sum of S$2,473,295.20.
- 4 December 2018: Samsung issued a letter to Soon Li Heng alleging "persistent dishonest conduct" regarding disposal quantities.
- 15 December 2018: Soon Li Heng responded to Samsung's allegations, disputing the "new" measurement methodology proposed by Samsung.
- 26 December 2018: Samsung paid the adjudicated sum of S$2,473,295.20 to Soon Li Heng pursuant to the 1AD determination.
- 31 December 2018: Soon Li Heng served Payment Claim No 24 ("PC 24") on Samsung.
- 14 January 2019: Samsung issued a Payment Response for PC 24, asserting a "final quantity of disposal" that significantly reduced the amounts claimed by Soon Li Heng.
- 29 January 2019: Samsung issued a further letter maintaining its position on the over-claimed quantities and the "2000 kg/m3" conversion rate.
- 3 April 2019: Samsung issued a formal demand to United Overseas Bank Limited to call on the performance bond for the full amount of S$826,713.53.
- 4 April 2019: Soon Li Heng commenced Originating Summons No 439 of 2019 to restrain the call on the bond.
- 9 May, 14 June, 15 July 2019: Substantive hearings were conducted before Ang Cheng Hock J.
- 12 November 2019: The High Court delivered its judgment, granting the injunction to restrain the call on the bond.
What Were the Facts of This Case?
The first defendant, Samsung C&T Corporation ("Samsung"), was the main contractor appointed by the Land Transport Authority ("LTA") for the construction of the Marine Parade Station and Tunnels for the Thomson-East Coast Line ("the Project"). On 22 April 2016, Samsung entered into a Re-Measurement Sub-Contract ("the Subcontract") with the plaintiff, Soon Li Heng Civil Engineering Pte Ltd ("Soon Li Heng"), for excavation and disposal works. The Subcontract value was approximately S$16.5 million. As a condition of the Subcontract, Soon Li Heng was required to provide a performance bond ("PB") as security for its performance. This bond was issued by United Overseas Bank Limited ("UOB") in the sum of S$826,713.53.
The scope of work involved the excavation and disposal of three categories of materials: (a) soil; (b) hardcore material; and (c) ground improvement and mixed material. The disposal routes were specific: soil was to be sent directly to the LTA’s Marina East Staging Ground ("MESG"), while hardcore material and mixed material required processing at an intermediate treatment site (referred to as "TOL" or Soon Li Heng’s staging ground) before being rendered suitable for disposal at MESG. The Subcontract was a re-measurement contract, meaning payment was based on the actual quantities of material excavated and disposed of, measured according to agreed methodologies.
Disputes regarding the measurement of these quantities became the focal point of the parties' relationship. In August 2018, Soon Li Heng served PC 20 for S$3,278,935.95. Samsung disputed the quantities, leading to an adjudication under the Building and Construction Industry Security of Payment Act. In the resulting adjudication determination ("1AD") dated 9 November 2018, the adjudicator largely accepted Soon Li Heng’s measurement methodology and ordered Samsung to pay S$2,473,295.20. Samsung complied with this determination by paying the sum on 26 December 2018.
However, immediately following the 1AD determination, Samsung began asserting that Soon Li Heng had engaged in "persistent dishonest conduct" and had "grossly over-claimed" for disposal works. Samsung’s allegations were based on a new calculation method it derived from emails sent by Soon Li Heng to the LTA. Samsung applied a conversion rate of "2000 kg/m3" to convert the weight of material (recorded in kilograms) into volume (cubic meters). Samsung also relied on assumptions regarding the load capacity of lorries used for disposal. By applying these new metrics, Samsung concluded that the "final quantity of disposal" as of 16 December 2018 was significantly lower than what Soon Li Heng had claimed in its subsequent Payment Claim No 24 ("PC 24").
Soon Li Heng vehemently disputed Samsung’s new methodology. It argued that the 1AD adjudicator had already considered and rejected similar measurement challenges and that Samsung was attempting to unilaterally impose a conversion rate (2000 kg/m3) that was not found in the Subcontract. Soon Li Heng maintained that its claims were based on the actual number of lorry trips and the volume of the lorries, as verified by disposal records. Samsung, however, persisted, claiming that Soon Li Heng had over-claimed S$2,972,383.24 across various payment claims.
On 3 April 2019, Samsung made a call on the performance bond for the full amount of S$826,713.53. Samsung justified the call on the basis that Soon Li Heng had failed to refund the alleged over-payments and had breached the Subcontract through its "dishonest" claiming practices. Soon Li Heng then applied to the court to restrain the call, arguing that the call was unconscionable because it was a bad-faith attempt to recover the 1AD adjudicated sum by re-litigating the same measurement issues under the guise of a bond call.
What Were the Key Legal Issues?
The primary legal issue was whether Samsung’s call on the performance bond was unconscionable, thereby justifying an injunction to restrain the call. This required the court to examine the specific factual matrix of the call and determine if it met the high threshold established in Singapore jurisprudence.
The court identified several sub-issues that informed the unconscionability analysis:
- The "Improper Purpose" Doctrine: Whether a call on a performance bond is unconscionable if it is motivated by an improper purpose, specifically the desire to circumvent the "temporary finality" of an adjudication determination under the Building and Construction Industry Security of Payment Act.
- The Impact of Prior Adjudication: To what extent does a prior adjudication determination (1AD) on measurement methodology restrict a beneficiary’s right to call a bond based on a contrary methodology?
- Bona Fides of the Dispute: Whether Samsung’s allegations of "dishonest conduct" and "over-claiming" were made in good faith or were merely a pretext to justify the call and claw back the 1AD payment.
- The Scope of Unconscionability: Whether the court should intervene in a "re-measurement" dispute where the parties have a genuine, albeit aggressive, disagreement over the calculation of quantities.
How Did the Court Analyse the Issues?
Ang Cheng Hock J began the analysis by reaffirming the established legal framework for performance bonds in Singapore. Citing BS Mount Sophia Pte Ltd v Join-Aim Pte Ltd [2012] 3 SLR 352 ("Mount Sophia"), the court noted that "apart from fraud, unconscionability is a ground which would warrant the court granting an injunction to restrain a beneficiary of a performance bond from calling on it" (at [33]). The court emphasized that unconscionability is a "conclusion applied to conduct which the court finds to be so lacking in bona fides such that an injunction restraining the beneficiary’s substantive rights is warranted" (at [35]).
The court then turned to the critical interaction between the performance bond and the SOPA regime. Under Section 21 of the Building and Construction Industry Security of Payment Act, an adjudication determination is binding on the parties until the dispute is finally determined by a court or tribunal. This is known as "temporary finality." The court observed that while a performance bond is an independent contract, its use must not be permitted to subvert the statutory purpose of SOPA, which is to facilitate cash flow in the construction industry.
In analyzing Samsung’s conduct, the court found that the call on the PB was "motivated by the improper purpose of effectively overturning parts of the adjudicator’s determination in 1AD" (at [103]). The court reached this conclusion by examining the following factors:
1. The Re-litigation of Measurement Methodology
The court noted that the 1AD adjudicator had already ruled on the appropriate measurement methodology for the excavation works. Samsung’s subsequent claim that Soon Li Heng had over-claimed was based on a "new" methodology involving a conversion rate of 2000 kg/m3. The court found that Samsung was attempting to use this new methodology to challenge the very basis of the 1AD determination. Ang Cheng Hock J observed:
"The first defendant’s case is that the plaintiff had over-claimed for the disposal of the materials... However, the adjudicator in 1AD had already determined the measurement methodology... By making the call on the PB based on a different methodology, the first defendant was effectively seeking to reverse the adjudicator's decision." (at [53]-[55])
2. The Timing and Nature of the Allegations
The court found it significant that Samsung’s allegations of "dishonest conduct" only surfaced after the 1AD determination was issued. Samsung had paid the adjudicated sum of S$2,473,295.20 on 26 December 2018, but almost immediately sought to recover it through the bond call. The court viewed this as evidence that the call was not a bona fide response to a breach of contract, but a tactical move to neutralize the 1AD payment.
3. The Lack of Basis for the "2000 kg/m3" Rate
The court scrutinized Samsung’s reliance on the 2000 kg/m3 conversion rate. It found that this rate was not stipulated in the Subcontract and was unilaterally derived by Samsung from extraneous emails. The court held that Samsung’s insistence on this rate, in the face of the adjudicator’s prior determination, was "so lacking in bona fides" that it crossed the line into unconscionability. The court distinguished this from a mere "bona fide dispute" over re-measurement, noting that Samsung’s conduct was an attempt to bypass the statutory dispute resolution mechanism.
4. Distinguishing Prior Authorities
Samsung relied on AM Construction Technology Pte Ltd v South Island LG Pte Ltd [2015] SGDC 181 and [2018] SGHC 163 (AES Façade) to argue that a call on a bond is not unconscionable simply because there is an ongoing dispute. However, the court distinguished these cases, noting that they did not involve an attempt to overturn a binding adjudication determination through a bond call. The court emphasized that the "improper purpose" of undermining the SOPA regime was the decisive factor in the present case.
The court concluded that the entire context of the call—the timing, the re-litigation of issues decided in 1AD, and the lack of a contractual basis for the new calculations—demonstrated that Samsung’s conduct was unconscionable. The court held that allowing the call would permit Samsung to "claw back" the adjudicated sum in a manner that defeated the purpose of the SOPA "pay now, argue later" philosophy.
What Was the Outcome?
The High Court granted the plaintiff's application to restrain the call on the performance bond. The court issued the following orders:
"I grant prayers (1) to (3) of Originating Summons 439 of 2019." (at [104])
The effect of these orders was to:
- Restrain Samsung from receiving any payment from UOB under the performance bond call dated 3 April 2019.
- Restrain UOB from making any payment to Samsung pursuant to the said call.
- Declare that the call made by Samsung on 3 April 2019 was unconscionable and therefore invalid.
The court found that the call was motivated by an improper purpose—specifically, the attempt to circumvent the temporary finality of the 1AD adjudication determination. By granting the injunction, the court ensured that the S$2,473,295.20 paid by Samsung pursuant to the 1AD determination remained with the plaintiff pending a final resolution of the dispute through arbitration or litigation, as contemplated by the SOPA regime.
Regarding costs, the court did not make an immediate award, stating:
"I will hear the parties separately on the question of costs." (at [105])
The judgment effectively protected the plaintiff's cash flow and upheld the integrity of the statutory adjudication process, preventing the performance bond from being used as a tool to subvert the "pay now, argue later" principle of the Building and Construction Industry Security of Payment Act.
Why Does This Case Matter?
This case is a landmark decision for construction law practitioners in Singapore, as it provides clear judicial guidance on the limits of a beneficiary's right to call a performance bond in the context of the SOPA regime. It establishes that the "unconscionability" exception is not merely a high bar for general unfairness, but a specific safeguard against the subversion of statutory dispute resolution processes.
1. Protection of the SOPA Regime
The judgment reinforces the "temporary finality" of adjudication determinations. It clarifies that a main contractor cannot simply pay an adjudicated sum to comply with SOPA and then immediately use a performance bond to "claw back" that same sum based on the same (or substantially similar) arguments rejected by the adjudicator. This prevents the performance bond from becoming a "backdoor" appeal mechanism that would render the SOPA regime toothless.
2. Expansion of the "Improper Purpose" Doctrine
The court’s focus on "improper purpose" as a subset of unconscionability is significant. It signals that the court will look at the motivation behind a bond call. If the primary motivation is to bypass a binding statutory obligation or to re-litigate a settled interim issue, the call may be deemed unconscionable even if the beneficiary can point to a technical breach of the underlying contract. This adds a layer of substantive scrutiny to the unconscionability test.
3. Guidance on Re-measurement Disputes
For practitioners involved in re-measurement contracts, the case highlights the danger of unilaterally changing measurement methodologies mid-project. The court’s rejection of Samsung’s "2000 kg/m3" conversion rate suggests that parties must adhere to the agreed contractual or adjudicated methodologies when asserting over-claims. Attempts to "manufacture" a claim for the purpose of a bond call will be viewed with skepticism by the court.
4. Impact on Risk Management
Main contractors must now be more cautious when calling bonds following an unfavorable adjudication. They must ensure that the basis for the call is distinct from the issues decided in the adjudication, or that they have a fresh, bona fide basis for the claim that does not merely seek to reverse the adjudicator's decision. Subcontractors, on the other hand, have a stronger legal basis to challenge aggressive bond calls that appear to be retaliatory or designed to circumvent SOPA payments.
In the broader Singapore legal landscape, Soon Li Heng sits alongside Mount Sophia and JBE Properties as a key authority on the equitable limits of demand guarantees. It demonstrates the court's willingness to intervene when the strict "autonomy" of a bond is used to achieve an outcome that is fundamentally at odds with statutory policy and commercial fair dealing.
Practice Pointers
- Respect Adjudication Finality: When a SOPA adjudication determination has been issued, avoid calling a performance bond on grounds that are substantially identical to the issues already decided by the adjudicator. Such a call is highly likely to be characterized as unconscionable.
- Document the Basis of the Call: Beneficiaries should clearly document the specific breaches and losses justifying a bond call. If the call is based on "over-claims," ensure that the calculation methodology is consistent with the contract or prior adjudications.
- Avoid Retaliatory Timing: A bond call made immediately after paying an adjudicated sum will be viewed with suspicion. Ensure there is a clear, intervening event or fresh evidence of breach that justifies the timing of the call.
- Scrutinize "Dishonesty" Allegations: Allegations of fraud or persistent dishonest conduct must be supported by robust evidence. Using such labels as a pretext to justify a bond call in a standard measurement dispute may backfire and lead to a finding of unconscionability.
- Review Conversion Rates and Metrics: In re-measurement disputes, ensure that any conversion rates (e.g., weight to volume) or lorry load assumptions used to calculate over-claims have a clear contractual basis or are supported by industry standards.
- Consider the "Improper Purpose" Risk: Before advising a client to call a bond, evaluate whether the call could be perceived as an attempt to circumvent a statutory payment obligation. If the primary goal is "claw back," the risk of an injunction is high.
Subsequent Treatment
The decision in Soon Li Heng Civil Engineering Pte Ltd v Samsung C&T Corp and another [2019] SGHC 267 has been recognized as a pivotal authority on the interaction between performance bonds and the SOPA regime. It is frequently cited for the proposition that a call on a bond motivated by the improper purpose of undermining an adjudication determination is unconscionable. The judgment reinforces the high threshold for unconscionability while providing a specific factual template for judicial intervention in construction disputes.
Legislation Referenced
- Building and Construction Industry Security of Payment Act (Cap 30B, 2006 Rev Ed) ("SOPA"), Sections 21, 21(1)(a), 21(1)(b), 21(1)(c), 36
- Building and Construction Industry Security of Payment Act 1999 (New South Wales), Section 34
Cases Cited
- Applied: BS Mount Sophia Pte Ltd v Join-Aim Pte Ltd [2012] 3 SLR 352
- Referred to: JBE Properties Pte Ltd v Gammon Pte Ltd [2011] 2 SLR 47
- Referred to: W Y Steel Construction Pte Ltd v Osko Pte Ltd [2013] 3 SLR 380
- Referred to: AES Façade Pte Ltd v Wyse Pte Ltd and another [2018] SGHC 163
- Referred to: Min Thai Holdings Pte Ltd v Sunlabel Pte Ltd [1998] 3 SLR(R) 961
- Referred to: Ryobi Tactics Pte Ltd v UES Holdings Pte Ltd and another [2019] 4 SLR 1324
- Referred to: AM Construction Technology Pte Ltd v South Island LG Pte Ltd and Liberty Insurance Pte Ltd [2015] SGDC 181
- Referred to: Eltraco International Pte Ltd v CGU International Insurance plc [2000] 3 SLR(R) 198
- Referred to: GHL Pte Ltd v The Private Office of HRH Sheikh Sultan bin Khalifa bin Zayed Al Nahyan [2000] 1 SLR(R) 117