Ser Kang Wei and another v Salas Porras, Carlos Luis and others [2025] SGHC 257

Case Details

• Citation: [2025] SGHC 257
• Court: General Division of the High Court of the Republic of Singapore
• Decision Date: 19 December 2025
• Coram: Tan Siong Thye SJ
• Case Number: Originating Claim No 545 of 2025; Summons No 2924 of 2025
• Hearing Date(s): 4 November 2025
• Claimants / Plaintiffs: Ser Kang Wei (Xu Kangwei) (also known as "Jack"); Lucent Trading Limited
• Respondents / Defendants: Salas Porras Carlos Luis (1st Defendant); Yong Khong Yoong Mark (2nd Defendant); Emily Hwang Mei Chen (3rd Defendant)
• Counsel for Claimants: Pereira Kenneth Jerald, Keerthana Narayanan and Ng Hao Ming (Aldgate Chambers LLC)
• Counsel for Respondents: Pardeep Singh Khosa, Goh Bin Jing, Marc, Deepansh Sharma, Sim Wai Kit and Maria Santhosh (Withers KhattarWong LLP) for the second and third defendants
• Practice Areas: Civil Procedure; Mareva Injunctions; Fraud and Asset Recovery

Summary

The judgment in Ser Kang Wei and another v Salas Porras Carlos Luis and others [2025] SGHC 257 represents a significant affirmation of the Singapore High Court's robust approach toward protecting claimants in cases involving sophisticated, multi-jurisdictional fraudulent investment schemes. The dispute centers on allegations by the claimants, Mr. Ser Kang Wei ("Jack") and Lucent Trading Limited, that they were induced into investing approximately US$38,614,846 into two successive gold trading schemes—the "South African Scheme" and the "Zimbabwean Scheme"—which they later discovered to be fraudulent. The claimants successfully obtained an ex parte worldwide Mareva injunction (ORC 4167) against the defendants to freeze their assets up to the value of the principal investment. The second and third defendants, Mr. Yong Khong Yoong Mark ("Mark") and Ms. Emily Hwang Mei Chen ("Emily"), subsequently applied via SUM 2924 to set aside the injunction, challenging the merits of the case and alleging procedural impropriety.

The High Court, presided over by Tan Siong Thye SJ, dismissed the application to set aside the Mareva injunction, save for a minor order regarding the fortification of the claimants' undertaking as to damages. The court's decision turned on a meticulous evaluation of whether the claimants had established a "good arguable case" on the merits and a "real risk of dissipation" of assets. In doing so, the court reinforced the principle that where a claimant provides strong evidence of a dishonest scheme, the court is entitled to infer a risk of asset dissipation, as a defendant who has acted fraudulently is likely to take steps to frustrate any future judgment. The court also addressed and rejected the defendants' arguments regarding material non-disclosure and abuse of process, finding that the claimants had sufficiently disclosed the relevant facts during the ex parte stage.

Doctrinally, the case clarifies the threshold for "good arguable case" in the context of complex fraud, emphasizing that the court need not reach a final determination on the facts but must be satisfied that the claim has a degree of merit higher than merely surviving a strike-out application. The judgment also provides a detailed analysis of the "fraud-as-risk" inference, distinguishing between the mere ability to move assets and the demonstrated propensity for dishonesty that justifies a freezing order. This case serves as a critical precedent for practitioners navigating the intersection of civil procedure and international asset recovery, particularly in the face of defendants who utilize offshore structures and sophisticated financial narratives to obscure the flow of funds.

The broader significance of this decision lies in its refusal to allow defendants to hide behind complex corporate veils or "innocent" explanations for fund transfers when the underlying commercial reality suggests a fraudulent enterprise. By maintaining the Mareva injunction, the court signaled its commitment to ensuring that the judicial process is not rendered nugatory by the pre-emptive removal of assets from the jurisdiction or the reach of the court. The order for fortification of $100,000, while a victory for the defendants in a narrow sense, did not undermine the primary protective effect of the injunction, illustrating the court's balanced approach to managing the risks inherent in pre-emptive relief.

Timeline of Events

1. 3 March 2017: Early interactions or foundational events related to the parties' business relationship begin.
2. 13 October 2017: Further preliminary developments in the parties' dealings.
3. 31 January 2019: Initial discussions regarding the South African gold trading scheme ("SA Scheme") commence.
4. 11 April 2019: Carlos Luis Salas Porras ("Carlos") entices Jack to invest in the SA Scheme.
5. 28 May 2019: Jack makes an initial transfer of US$2,759,534 to Carlos for the SA Scheme.
6. 31 October 2019: Carlos proposes formalizing the SA Scheme through a fund called PIERCE50 under Coinful Capital.
7. 9 November 2019: Jack agrees to transfer his investments to Coinful Capital.
8. 5 January 2020: Further administrative steps taken regarding the transition of funds.
9. 5 February 2020: Jack begins investing through Master Dragon Global Enterprises Holding Ltd ("Master Dragon").
10. 24 February 2020: Significant fund movements occur within the Master Dragon structure.
11. 9 March 2020: Mark Yong Khong Yoong ("Mark") is involved in the shareholding structure of Master Dragon.
12. 15 April 2020: Mark ceases to be the sole shareholder of Master Dragon, as part of the scheme's evolution.
13. 7 July 2020: Continued investment activity and reporting within the SA Scheme.
14. 13 August 2021: The "Zimbabwean Scheme" is introduced to Jack as a successor or alternative to the SA Scheme.
15. 3 September 2021: Jack makes final significant investments into the Master Dragon structure.
16. 21 September 2021: Total investment through Lucent Trading into Master Dragon reaches US$35,855,312.
17. October 2021: Interest payouts to Jack cease, prompting inquiries.
18. 11 February 2022: Carlos provides excuses regarding the delay in payments, citing COVID-19 and Fidelity Printers and Refiners.
19. 17 April 2022: Jack discovers Mark's extensive involvement in both the SA and Zimbabwean Schemes.
20. 15 June 2022: Jack attempts to recover funds through direct communication with the defendants.
21. 26 September 2022: Legal demands are issued as the fraud becomes apparent.
22. 22 November 2022: Further evidence of the fraudulent nature of the schemes is gathered by the claimants.
23. 7 February 2023: Claimants finalize their investigation into the Zimbabwean entities.
24. 27 March 2024: Pre-action protocols and final warnings are issued to the defendants.
25. 6 January 2025: Originating Claim No 545 of 2025 is filed.
26. 29 January 2025: Ex parte application for a Mareva injunction (SUM 1957) is filed.
27. 8 August 2025: The court grants the ex parte Mareva injunction (ORC 4167).
28. 20 August 2025: Mark and Emily file SUM 2924 to set aside the Mareva injunction.
29. 4 November 2025: Substantive hearing for SUM 2924 takes place.
30. 19 December 2025: Judgment delivered dismissing the set-aside application.

What Were the Facts of This Case?

The factual matrix of this case involves a complex web of representations and financial transactions centered on two purported gold trading schemes. The first claimant, Mr. Ser Kang Wei ("Jack"), is a businessman who, along with his company Lucent Trading Limited (the second claimant), was targeted by the defendants. The first defendant, Carlos Luis Salas Porras ("Carlos"), was the primary point of contact who introduced Jack to the investment opportunities. The second and third defendants, Mark Yong Khong Yoong ("Mark") and Emily Hwang Mei Chen ("Emily"), were alleged to be key co-conspirators who managed the corporate vehicles and financial flows that facilitated the alleged fraud.

In early 2019, Carlos approached Jack with the "South African Scheme." The representation was that licensed refineries in South Africa only dealt with large-scale miners, leaving an opening for a middleman to purchase gold from small artisanal miners at a discount and sell it to refineries for a profit. Carlos claimed that a company called Ultra Trading would execute these trades and sell the gold to a refinery named Precious Metals SA. Relying on these representations, Jack transferred US$2,759,534 to Carlos. Later in 2019, Carlos suggested formalizing this arrangement through a hedge fund called Coinful Capital, specifically its flagship fund PIERCE50. Jack was led to believe his investment was being managed within this professional structure.

In February 2020, the scheme evolved. Carlos proposed that Jack invest through a British Virgin Islands company, Master Dragon Global Enterprises Holding Ltd ("Master Dragon"), promising higher returns. Between February 2020 and September 2021, Jack, through Lucent Trading, invested a staggering US$35,855,312 into Master Dragon. Unbeknownst to Jack at the time, Mark was the sole shareholder of Master Dragon until April 2020, and Emily was involved in the administrative and operational aspects of the fund management. The claimants alleged that these funds were not used for gold trading but were instead diverted for the defendants' personal use or to sustain a Ponzi-like structure.

As the SA Scheme allegedly faced difficulties due to the COVID-19 pandemic, Carlos introduced the "Zimbabwean Scheme" in late 2021. The narrative shifted to Zimbabwe, where a company called BetterBrands Investments would supposedly purchase gold and sell it to Fidelity Printers and Refiners ("Fidelity"), an entity owned by the Reserve Bank of Zimbabwe. Jack was told that Fidelity was holding 1,508.47kg of gold but could not pay BetterBrands due to pandemic-related delays, which in turn prevented Master Dragon from paying investors. However, Jack's subsequent investigations revealed that the "BetterBrands" entity involved in the scheme was not the legitimate BetterBrands Jewellery Group as represented, but a different entity used as a front.

The crisis peaked in October 2021 when interest payouts to Jack ceased. Despite repeated assurances from Carlos, Mark, and Emily, no further payments were forthcoming. In April 2022, Jack discovered that Mark had been a central figure in the schemes from the beginning, contrary to earlier representations that Mark was merely a fellow investor or a third-party service provider. The claimants also obtained audio recordings of conversations between Jack and the defendants, which they argued contained admissions of the fraudulent nature of the schemes and the defendants' roles in them. Specifically, the transcripts suggested that Mark and Emily were aware that the gold trading was non-existent and that the funds were being moved through various accounts to avoid detection.

The procedural history leading to the present judgment involved the claimants filing Originating Claim No 545 of 2025 and obtaining an ex parte worldwide Mareva injunction (ORC 4167) on 8 August 2025. This injunction froze the defendants' assets up to US$38,614,846. Mark and Emily (the second and third defendants) then moved to set aside this injunction via SUM 2924, arguing that the claimants had failed to establish a good arguable case, that there was no real risk of dissipation, and that the claimants had suppressed material facts during the ex parte hearing. They also sought a variation of the injunction to increase their allowed living expenses and requested fortification of the claimants' undertaking as to damages.

What Were the Key Legal Issues?

The primary legal issue was whether the Mareva injunction granted in ORC 4167 should be set aside or maintained. This required the court to address several sub-issues grounded in the established requirements for such interlocutory relief:

• Good Arguable Case: Whether the claimants had demonstrated a case on the merits that was more than barely capable of serious argument, particularly regarding the allegations of fraud and conspiracy against Mark and Emily.
• Real Risk of Dissipation: Whether there was evidence of a real risk that the defendants would dissipate their assets to frustrate the enforcement of a potential judgment. This included an analysis of whether such a risk could be inferred from the nature of the alleged fraud itself.
• Full and Frank Disclosure: Whether the claimants had breached their duty to disclose all material facts during the ex parte application, and if so, whether such a breach warranted the setting aside of the injunction.
• Abuse of Process: Whether the timing and manner of the claimants' application constituted an abuse of the court's process, specifically regarding the delay in bringing the application and the use of audio transcripts.
• Variation of Living Expenses: Whether the existing allowance for ordinary living expenses under the Mareva injunction was sufficient or required upward revision.
• Fortification of Undertaking: Whether the claimants should be required to provide security (fortification) for their undertaking as to damages, given their status as foreign entities and the potential loss to the defendants.

These issues are critical because a Mareva injunction is a "nuclear weapon" of civil litigation. The court must balance the claimant's need for security against the defendant's right to use their assets before a final judgment is rendered. The "good arguable case" threshold is the first gatekeeper, ensuring that the court does not interfere with a defendant's property rights based on frivolous claims. The "real risk of dissipation" requirement ensures that the injunction is truly necessary to prevent the frustration of justice. Finally, the "full and frank disclosure" rule is the essential safeguard for the ex parte process, where the defendant is not present to argue their case.

How Did the Court Analyse the Issues?

The court began its analysis by reiterating the two-pronged test for a Mareva injunction as set out in [2015] 5 SLR 558: (a) a good arguable case on the merits; and (b) a real risk that the defendant will dissipate assets to frustrate the enforcement of an anticipated judgment. The court emphasized that a "good arguable case" is one which is "more than barely capable of serious argument, and yet not necessarily one which the judge believes has a better than 50% chance of success" (at [47]).

1. Good Arguable Case on the Merits

The court found that the claimants had established a strong and good arguable case against Mark and Emily. The defendants argued that they were merely service providers or fellow victims of Carlos. However, the court looked at the "commercial reality" of the transactions. It noted that Mark was the sole shareholder of Master Dragon during the period when US$35,855,312 was transferred into its accounts. The court found it "incredible" that such large sums could be moved without Mark's knowledge or involvement in the underlying scheme. Furthermore, the audio transcripts provided by Jack contained statements where Mark and Emily appeared to discuss the lack of actual gold trading and the need to move funds to avoid detection. The court rejected the defendants' challenge to the admissibility of these transcripts under the Evidence Act 1893, noting that for the purposes of an interlocutory application, the court can rely on such evidence if it appears prima facie authentic.

"the claimants have made out a strong and good arguable case that Mark and Emily were involved in two fraudulent schemes... the court is entitled to look at the totality of the evidence, including the suspicious nature of the fund flows and the defendants' own admissions in the recorded conversations." (at [132])

2. Real Risk of Dissipation

On the issue of dissipation, the court applied the principle from Guan Chong Cocoa Manufacturer Sdn Bhd v Pratiwi Shipping SA [2003] 1 SLR(R) 157, which states that while a good arguable case of fraud does not automatically establish a risk of dissipation, it is a "potent factor" from which such a risk may be inferred. The court reasoned that if there is a good arguable case that the defendants acted dishonestly in the underlying transaction, it is a short step to conclude they might act dishonestly to hide their assets. The court distinguished this from the "mere ability to move assets," which Continental Shipping Line Pte Ltd v Jonathan John Shipping Ltd [2025] 1 SLR 1191 held was insufficient. Here, the risk was grounded in the "propensity for dishonesty" demonstrated by the fraudulent nature of the gold schemes.

3. Full and Frank Disclosure

Mark and Emily alleged that Jack had suppressed material facts, including the fact that Jack himself had been involved in "grey market" activities and that some funds had been returned to him. The court applied the test from Poon Kng Siang v Tan Ah Keng [1991] 2 SLR(R) 621, evaluating whether the omissions were "material" in the sense that they would have affected the mind of the judge granting the ex parte order. The court found that the claimants had disclosed the essential features of the dispute and that the alleged omissions were either not material or were sufficiently covered by the general narrative provided in the ex parte affidavits. The court noted that the duty of disclosure does not require a claimant to anticipate every possible defense the defendant might raise.

4. Abuse of Process and Delay

The defendants argued that the application was an abuse of process because Jack had waited nearly three years after discovering the fraud to apply for the Mareva injunction. The court disagreed, noting that Jack had spent significant time attempting to recover the funds through negotiation and conducting investigations into the complex offshore structures used by the defendants. The court held that "delay is not a bar to a Mareva injunction unless it suggests that the claimant does not actually believe there is a risk of dissipation" (at [98]). In this case, the ongoing nature of the defendants' attempts to obscure the funds justified the timing of the application.

5. Fortification of Undertaking

Finally, the court considered the request for fortification. Relying on [2025] SGHC 95, the court noted that it has a broad discretion to order fortification where there is a risk that the claimant's undertaking as to damages might be hollow. Given that the claimants were foreign entities with no significant assets in Singapore, the court ordered Jack to pay S$100,000 into court as fortification. This was deemed a "reasonable and proportionate" amount to protect the defendants against potential losses caused by the injunction if the claim eventually fails.

What Was the Outcome?

The High Court dismissed the second and third defendants' application (SUM 2924) to set aside the Mareva injunction. The court ordered that the worldwide Mareva injunction encapsulated in ORC 4167 shall stand, maintaining the freeze on the defendants' assets up to the value of US$38,614,846. The court's operative conclusion was stated as follows:

"the court dismisses SUM 2924 and orders that ORC 4167 stands." (at [132])

The court's specific orders included:

• The dismissal of the challenge to the "good arguable case" requirement, finding the evidence of fraud compelling.
• The dismissal of the challenge to the "real risk of dissipation," affirming the "fraud-as-risk" inference.
• The dismissal of the allegations of material non-disclosure and abuse of process.
• The dismissal of the defendants' request to vary the injunction to increase their allowance for ordinary living expenses, as the court found the current allowance of US$20,000 per month (or equivalent) to be adequate.
• An order for the claimants to fortify their undertaking as to damages by paying S$100,000 into court within 14 days.

Regarding costs, the court followed the usual principle that costs follow the event. Since the defendants were largely unsuccessful in their application to set aside the injunction, they were ordered to pay the claimants' costs of the application, to be taxed if not agreed. The court did not grant any currency conversion orders at this stage, maintaining the value of the injunction in US Dollars as originally sought.

Why Does This Case Matter?

This judgment is a vital addition to the jurisprudence on Mareva injunctions in Singapore, particularly in the context of modern, technology-enabled financial fraud. It reinforces several key principles that are of paramount importance to practitioners:

1. The "Fraud-as-Risk" Inference: The case provides a clear application of the principle that a good arguable case of fraud is a powerful indicator of a risk of asset dissipation. By distinguishing this from the "mere ability to move assets," the court has provided a more nuanced roadmap for when the "nuclear weapon" of a Mareva injunction is appropriate. Practitioners can rely on this case to argue that where a defendant's core business model is shown to be a sham, the court should not be hesitant to freeze assets.

2. Evidentiary Flexibility in Interlocutory Stages: The court's willingness to consider audio transcripts and recordings, even when their ultimate admissibility at trial might be challenged under the Evidence Act 1893, is a significant practical takeaway. It confirms that at the interlocutory stage, the court is more concerned with the "substance of the merit" than with technical evidentiary hurdles, provided there is a prima facie basis for the evidence.

3. The Threshold of "Good Arguable Case": The judgment clarifies that "good arguable case" is a standard that sits between a "serious question to be tried" (the American Cyanamid standard for prohibitory injunctions) and a "balance of probabilities." This case shows that even in the face of complex, competing factual narratives, a claimant can meet this threshold by pointing to objective "commercial realities" that contradict the defendant's version of events.

4. Managing the Duty of Disclosure: The court's rejection of the non-disclosure arguments serves as a reminder that while the duty of full and frank disclosure is "high and holy," it is not a trap for claimants. A claimant is not required to present the defendant's case for them, but rather to ensure the court has the "full picture" of the material dispute. This provides some comfort to practitioners drafting ex parte affidavits in high-pressure fraud cases.

5. Fortification as a Balancing Tool: The order for fortification of S$100,000 illustrates how the court uses financial security to balance the scales. For practitioners representing foreign claimants, this case highlights the need to advise clients early on that they may need to put up significant cash or security to maintain a Mareva injunction, even if their case is strong.

In the broader Singapore legal landscape, this case reinforces the jurisdiction's reputation as a "pro-recovery" forum for victims of international fraud. By refusing to let the defendants set aside the injunction based on technicalities or "innocent" explanations for suspicious fund flows, the High Court has affirmed that it will look through corporate structures to prevent the frustration of its judgments.

Practice Pointers

• Contemporaneous Evidence is King: The claimants' success was heavily bolstered by the audio recordings of conversations with the defendants. Practitioners should advise clients to document all communications, especially when a deal starts to sour, as these can provide the "smoking gun" needed for a Mareva injunction.
• Focus on Commercial Reality: When alleging fraud, do not just focus on the misrepresentations. Show the court the "impossible" nature of the defendant's business model. Here, the court was swayed by the fact that Mark was the sole shareholder of a company receiving millions of dollars while claiming to be an outsider.
• Address Delay Proactively: If there is a gap between the discovery of the fraud and the application for an injunction, explain it in the first affidavit. Show that the time was spent on legitimate investigations or recovery attempts to prevent the defendant from using "delay" as a proxy for "lack of risk."
• Prepare for Fortification: Foreign claimants should be warned that an undertaking as to damages is often not enough. Be prepared to offer fortification (cash or bank guarantee) upfront to demonstrate the claimant's bona fides and to neutralize the defendant's arguments about "hollow undertakings."
• Materiality in Disclosure: When deciding what to disclose in an ex parte application, err on the side of caution, but focus on facts that "go to the root" of the court's jurisdiction or the merits of the claim. Minor factual discrepancies are rarely enough to set aside an injunction if the core "good arguable case" remains intact.
• Living Expenses Strategy: For defendants, challenging the living expenses allowance requires specific evidence of a "change in circumstances" or "unmet needs." General assertions of a high standard of living are insufficient to vary a Mareva order.

Subsequent Treatment

As this is a recent decision from December 2025, there is no recorded subsequent treatment in the extracted metadata. However, the judgment's detailed analysis of the "good arguable case" standard and the "fraud-as-risk" inference is likely to be cited in future High Court and Court of Appeal decisions involving the setting aside of Mareva injunctions in fraud and conspiracy cases.

Legislation Referenced

• Evidence Act 1893 (2020 Rev Ed): Sections 3(1), 64, 66, and 67 (regarding the admissibility of audio transcripts and original recordings).
• Rules of Court 2021: Order 15 Rule 27(1) (regarding the production of documents and evidence); Order 13 Rule 1 (regarding the court's power to grant injunctions).

Cases Cited

• Applied: Bouvier, Yves Charles Edgar v Accent Delight International Ltd [2015] 5 SLR 558 (at [36], [47], [102])
• Referred to: Public Prosecutor v Mohamad Yazid Bin Md Yusof [2016] SGHC 102 (at [14])
• Referred to: Xu Xiangrong v Fu Xianwei [2025] SGHC 95 (at [180]−[188])
• Referred to: Guan Chong Cocoa Manufacturer Sdn Bhd v Pratiwi Shipping SA [2003] 1 SLR(R) 157 (at [18])
• Referred to: Bahtera Offshore (M) Sdn Bhd v Sim Kok Beng [2009] 4 SLR(R) 365 (at [20], [48])
• Referred to: Continental Shipping Line Pte Ltd v Jonathan John Shipping Ltd [2025] 1 SLR 1191 (at [24])
• Referred to: Poon Kng Siang v Tan Ah Keng [1991] 2 SLR(R) 621 (at [40])
• Referred to: Sea Trucks Offshore Ltd v Roomans, Jacobus Johannes [2019] 3 SLR 836 (at [53])
• Referred to: Sumifru Singapore Pte Ltd v Felix Santos Ishizuka [2020] 4 SLR 904 (at [21])
• Referred to: Lee Kuan Yew v Tang Liang Hong [1997] 2 SLR(R) 135 (at [10]−[11])
• Referred to: CPIT Investments Ltd v Qilin World Capital Ltd [2017] 3 SLR 1
• Referred to: CHS CPO GmbH (in bankruptcy) v Vikas Goel [2005] 3 SLR(R) 202 (at [89(e)])

Source Documents

• Original Judgment PDF (eLitigation)
• Case Summary on eLitigation