Case Details
- Citation: [2025] SGHC 233
- Title: Arki-Tech International Pte Ltd v Rentak Tebrau Sdn Bhd
- Court: High Court of the Republic of Singapore (General Division)
- Suit No: Suit No 277 of 2019
- Date of Judgment: 26 November 2025
- Judge: Chan Seng Onn SJ
- Hearing Dates: 10, 11, 14, 17–21, 24, 25 May 2021; 7–11, 14–18 February, 21, 22, 28–30 March, 17, 19–21, 25–28 October 2022; 7–9, 15, 20, 21, 23, 26–28, 30 June 2023; 2–5, 15–17, 22 April 2024; 26 May 2025; 23 July 2025
- Plaintiff/Applicant: Arki-Tech International Pte Ltd (“Arki-Tech”)
- Defendant/Respondent: Rentak Tebrau Sdn Bhd (“Rentak”)
- Legal Areas: Building and Construction Law — Building and construction contracts; Contract — Contractual terms; Contract — Formation
- Core Contract Type: Development Management (“DM”) contract with value engineering (“VE”) services and a fee structure linked to cost savings
- Statutes Referenced: Not specified in the provided extract
- Cases Cited: [2025] SGHC 233 (as provided)
- Judgment Length: 115 pages, 34,188 words
Summary
Arki-Tech International Pte Ltd v Rentak Tebrau Sdn Bhd concerned a dispute arising from a phased hotel and related development project in Johor, Malaysia. Arki-Tech was engaged under a written Development Management (“DM”) agreement to provide value engineering (“VE”) services for Phase 1 (the Innside Hotel) up to the commencement of construction works. The central commercial issue was whether Arki-Tech was entitled to (i) remuneration for work done and (ii) a contractual bonus equal to 20% of “all cost savings” generated by the VE proposals.
The High Court (Chan Seng Onn SJ) allowed Arki-Tech’s claim in part at the liability stage. The court held that Arki-Tech was entitled to payment for work done under the DM agreement at an hourly rate of $350. However, the court rejected Arki-Tech’s claim to the 20% share of cost savings under the VE fee mechanism. The court’s reasoning turned on contractual construction, including the interaction between the VE fee option clause and a separate term sheet fee clause, as well as conditions precedent-like requirements for entitlement to the cost-savings component.
What Were the Facts of This Case?
Rentak, a Malaysian company facilitating property development in the Iskandar area in Johor, approached Arki-Tech in October 2016 with a business proposal for a multi-component development. The initial project concept included several phases: Phase 1 (a 4-star, 33-storey Innside Hotel), Phase 2 (a 5-star, 33-storey Melia Hotel), Phase 3 (a 34-storey commercial office tower), Phase 4 (a 12-storey convention centre and related facilities), and Phase 5 (a multi-storey carpark). The dispute in this liability judgment focused on the VE services for Phase 1.
Following discussions, Rentak agreed to engage Arki-Tech in two capacities: as Development Manager (“DM”) until construction commenced, and separately as Project Manager (“PM”) once construction started. The parties’ agreement was first recorded in a Points of Agreement (“POA”) in November 2016 and later formalised in a Consultancy Agreement for Development Management dated 16 January 2017 (the “DM Agreement”). The DM Agreement was supported by schedules and an annexed term sheet, which set out the scope of VE services and the fee structure.
Under the DM Agreement, Arki-Tech’s VE services were to be performed “up to and until the commencement of construction works”. Clause 2 required Arki-Tech to provide the services set out in the relevant schedule item and annexed term sheet. Clause 3.1 required completion of the scope of works in the VE services in accordance with the annexed term sheet. Clause 4.1 provided for monthly invoicing and payment within seven days, with fees calculated based on an hourly rate and time spent, subject to a maximum number of hours per calendar month.
The fee architecture was not limited to hourly remuneration. The schedules and term sheet also contained a clause entitling Arki-Tech to 20% of cost savings from VE. The VE fee option clause referred to cost savings measured against a “formal quantity surveyor QS detailed cost estimates” prepared in accordance with “PDF drawings and planning data” tabled in Annex B (Option 1), or alternatively based on a construction rate of RM 250 per square feet with reference to a budgetary construction estimate/GFA (Option 2). The parties also agreed on an Annex B containing “PDF drawings and planning data”, and the DM Agreement’s implementation provisions defined when VE proposals would be considered “Board-approved” and how implementation would proceed.
What Were the Key Legal Issues?
The court identified multiple legal issues, but the liability phase primarily addressed enforceability and entitlement to the cost-savings component. First, Rentak argued that the DM Agreement, or at least the cost-savings fee mechanism, was void for uncertainty and/or unenforceable because the VE fee option clause was allegedly too vague and unworkable. This raised questions of contractual formation and certainty of terms, particularly whether the clause was sufficiently definite to be enforced.
Second, the court had to determine whether Arki-Tech was entitled to any payments in respect of Phase 1. This required analysis of the DM Agreement’s fee provisions, including whether the VE fee option clause or the term sheet fee clause governed the cost-savings entitlement, and whether Arki-Tech had satisfied the contractual conditions for earning the 20% bonus. The court also considered whether the parties had exercised extension options for other phases (though the liability judgment’s practical focus was on Phase 1), and whether interest on late payments was payable.
Third, the court addressed the substantive mechanics of the VE bonus claim at the liability stage. Even though quantum was deferred to a second phase, the court still needed to decide whether the VE proposals were required to always result in cost savings, whether they were “implementable”, and whether Arki-Tech’s VE proposals were capable of producing cost savings and were implemented following Board approval. The judgment’s structure indicates that the court later planned to quantify the 20% at a second stage, but it first had to determine whether the contractual entitlement existed at all.
How Did the Court Analyse the Issues?
The court began with contractual construction and enforceability principles. On Rentak’s argument that the VE fee option clause was void for uncertainty, the court approached the question by examining whether the clause was sufficiently certain as to the identification and selection of the relevant quantity surveyor (“formal quantity surveyor”) and the measurement basis for “20% of all cost savings from VE”. The court found that there was no uncertainty regarding the identification or selection of a “formal quantity surveyor”. This conclusion matters because uncertainty arguments often fail where the contract provides a workable method or objective criteria for determining the relevant party or benchmark.
On the meaning of “20% of all cost savings from VE”, the court rejected the suggestion that the phrase was unclear or incapable of application. The court’s reasoning emphasised that the parties had agreed on an Annex B containing “PDF drawings and planning data”. This agreement supported the view that the measurement framework was anchored in agreed inputs. In other words, the court treated the Annex B as part of the contractual machinery that made the cost-savings calculation workable rather than speculative.
The court also analysed the internal coherence of the fee options. It held that “Option 2 is comprehensible”, indicating that the alternative measurement method (based on a construction rate and GFA/budgetary construction estimate) was not so indeterminate as to render the clause unenforceable. Importantly, the court characterised the VE fee option clause as not being an “agreement to agree”. That is a key doctrinal point: where parties leave essential terms to future agreement, the contract may fail for lack of certainty. Here, the court found that the clause already contained sufficient terms to determine entitlement and calculation, even if the parties later disputed how the calculation should be performed.
Having rejected the enforceability challenge, the court turned to entitlement. It held that Arki-Tech was entitled to remuneration at the hourly rate of $350 for work done under the contract. This finding reflects a common approach in construction and project-management disputes: even where a bonus or contingent component is contested, the court may still enforce the baseline payment mechanism for services actually rendered, provided the contract clearly provides for such payment.
However, the court held that Arki-Tech was not entitled to the 20% cost-savings bonus for Phase 1. The reasoning involved multiple layers. First, the court held that the term sheet fee clause took precedence over the VE fee option clause. This indicates that the court treated the term sheet as a controlling instrument for the specific fee entitlement, rather than as a subordinate or merely descriptive document. Second, the court concluded that Arki-Tech was only entitled to 20% of cost savings if it could show that it had fully implemented the VE proposals following Board approval. This effectively made implementation a contractual condition for earning the bonus, not merely the generation of proposals.
Third, the court found that Arki-Tech was not entitled to claim 20% of cost savings in respect of Phase 1. While the extract does not reproduce the full factual findings, the judgment’s headings show that the court examined specific VE proposals (including “Plot Ratio VE”, “Corridor VE”, “Variable Refrigerant Volume VE”, “Liftcore VE”, “Room Layout VE”, “Alfresco Restaurant VE” for Phase 1) and assessed whether they resulted in net cost savings and whether they were implementable. The court also addressed sub-issues such as whether there were net cost savings for the VRV VE, whether the VRV VE was implementable, whether noise was an issue with the VRVS, and where outdoor units for the VRVS were to be placed. These considerations demonstrate that the court treated “cost savings” and “implementability” as substantive requirements linked to the contractual concept of VE proposals being capable of real-world implementation and producing measurable savings.
Finally, the court addressed whether VE proposals must always result in cost savings. The judgment indicates that the court did not treat cost savings as automatic; rather, it required proof that the VE proposals both were implementable and actually resulted in cost savings within the contractual framework. This approach aligns with the logic of a contingent bonus: the bonus is earned only if the contractual outcome is achieved, and the party claiming it must establish the factual basis for that outcome.
What Was the Outcome?
At the liability stage, the High Court allowed Arki-Tech’s claim in part. The court held that Arki-Tech was entitled to payment for work done under the DM Agreement at the hourly rate of $350. This provides immediate contractual vindication for the services performed, and it also sets the baseline for the quantum phase.
However, the court dismissed Arki-Tech’s claim to the 20% share of cost savings from VE services provided under the contract. The practical effect is that, even if Arki-Tech later proves the number of hours and the precise hourly remuneration due, it will not receive the cost-savings bonus for Phase 1 unless it can overcome the liability findings (which, as framed, were determined against it on the conditions for entitlement).
Why Does This Case Matter?
This decision is significant for practitioners dealing with building and construction contracts in Singapore, particularly where project-management or development-management engagements include value engineering components and contingent fee structures. The case illustrates that courts will enforce contractual certainty where the contract provides workable measurement machinery and agreed benchmarks, rejecting overly broad “agreement to agree” or vagueness arguments.
At the same time, the case underscores that contingent bonuses tied to cost savings are not merely aspirational. Where the contract requires implementation following Board approval, the claimant must prove that the VE proposals were not only developed but also fully implemented in the manner contemplated by the agreement. This is a practical warning for consultants and developers: the contractual entitlement to a savings share may depend on operational steps and governance approvals, not simply on producing design alternatives.
For law students and litigators, the judgment is also useful as an example of structured contractual analysis in a bifurcated trial. The court separated liability from quantum, decided enforceability and entitlement first, and then indicated that the second phase would quantify the 20% at a later stage. This approach can inform litigation strategy in complex construction disputes where factual and accounting-intensive calculations are required.
Legislation Referenced
- Not specified in the provided extract.
Cases Cited
- [2025] SGHC 233 (as provided)
Source Documents
This article analyses [2025] SGHC 233 for legal research and educational purposes. It does not constitute legal advice. Readers should consult the full judgment for the Court's complete reasoning.