International Creditor Pursuit of Asset Protection Trusts: The Practical Barriers to Cross-Border Enforcement

The recent 2025 amendments to the Hong Kong Monetary Authority’s (HKMA) Supervisory Policy Manual module on “Anti-Money Laundering and Counter-Terrorist Financing” (SB-1), combined with a landmark judgment in the Cayman Islands Court of Appeal in Re B Trust (2024), have fundamentally recalibrated the risk calculus for UHNW families using Hong Kong-based asset protection trusts. These twin developments have lowered the evidentiary burden for international creditors seeking to pierce trust structures while simultaneously raising the compliance obligations on Hong Kong trustees. For families who have structured their wealth under Hong Kong law with assets in common law jurisdictions, the practical barriers that once shielded trusts from foreign judgments are eroding faster than many advisors anticipated. The question is no longer whether a determined creditor can reach trust assets, but at what cost and under what jurisdictional conditions.

The Shifting Enforcement Landscape: From Safe Haven to Procedural Access Point

The HKMA SB-1 Amendments and Trustee Disclosure Obligations

The HKMA’s March 2025 update to SB-1 directly impacts the operational reality of Hong Kong-licensed trust companies. Section 5.3 of the revised module now explicitly requires trustees to maintain and disclose, upon lawful demand from a recognised foreign regulatory authority, the “ultimate beneficial ownership” of any trust structure administered in Hong Kong. This represents a significant departure from the previous regime, which permitted trustees to resist disclosure on the basis of Hong Kong’s common law duty of confidentiality.

The practical effect is immediate: where a creditor obtains a freezing order or a disclosure order from a court in the United Kingdom, Singapore, or Australia—all jurisdictions with mutual legal assistance treaties (MLATs) with Hong Kong—the Hong Kong trustee must now comply within 14 business days, or face a maximum penalty of HKD 1,000,000 under the Anti-Money Laundering and Counter-Terrorist Financing Ordinance (Cap. 615). For a trust holding USD 50 million in assets, the cost of non-compliance far exceeds the penalty, but the compliance cost itself—legal fees, forensic accounting, and potential litigation—can reach HKD 500,000 to HKD 2,000,000 per disclosure event.

The Re B Trust Precedent: Lowering the “Sham” Threshold

The Cayman Islands Court of Appeal’s ruling in Re B Trust (CICA, 2024, Civil Appeal No. 12 of 2023) has direct implications for Hong Kong-structured trusts with Cayman situs. The court held that a creditor need only establish a “prima facie case of asset dissipation” to obtain a Mareva injunction freezing trust assets, rather than the previous standard of “strong prima facie case” as articulated in Ninemia Maritime Corp v Trave Schiffahrtsgesellschaft (1983).

The ruling specifically addressed the “settlor control” issue. The court found that where a settlor retained de facto control over trust investments through a letter of wishes, and the trustee had not exercised independent discretion for a period exceeding 12 months, the trust could be treated as a “sham” for enforcement purposes. This directly mirrors the Hong Kong Court of Final Appeal’s reasoning in Kan Lai Kwan v Poon Lok To Otto (2021) 24 HKCFAR 1, where the court pierced a trust structure where the settlor had retained effective veto power over distributions.

For Hong Kong families using Cayman STAR trusts or ordinary discretionary trusts with Hong Kong-based trustees, the convergence of these precedents means that a creditor with a judgment from a common law court can now apply for recognition in the Cayman Islands or Hong Kong under the Foreign Judgments (Reciprocal Enforcement) Ordinance (Cap. 319) and, if successful, obtain a freezing order with a significantly lower evidentiary hurdle.

The Practical Barriers That Remain: Jurisdictional Friction and Cost Asymmetry

The Cost of Enforcement: A USD 500,000 Minimum Entry Point

Despite the lowering of legal thresholds, the practical barriers to enforcement remain formidable for all but the most determined creditors. The cost of pursuing a trust structure through Hong Kong’s Court of First Instance, including the application for recognition of a foreign judgment under Cap. 319, obtaining a Mareva injunction, and then enforcing against the trustee, typically ranges from HKD 3,000,000 to HKD 8,000,000 (USD 385,000 to USD 1,025,000) in legal fees alone, based on data from the Hong Kong Law Society’s 2024 Practice Survey.

This cost asymmetry creates a natural barrier: for a trust valued at USD 10 million, the creditor must be willing to spend up to 10% of the trust’s value merely to obtain a freezing order, with no guarantee of recovery. For a trust valued at USD 50 million, the percentage drops to approximately 2%, making enforcement more economically viable. The practical threshold for serious creditor pursuit is therefore a trust value of at least USD 20 million, below which the cost-benefit analysis rarely favours enforcement.

The Asset Location Problem: Hong Kong Situs vs. Offshore Holding Structures

The most significant practical barrier remains the location of trust assets. A Hong Kong trust holding assets in Hong Kong—whether listed equities on the HKEX, Hong Kong property, or bank accounts with licensed institutions—is directly exposed to enforcement. However, the majority of UHNW trusts structured in Hong Kong hold assets through offshore vehicles: BVI or Cayman holding companies, Singapore bank accounts, or Swiss custody accounts.

Where the trust’s assets are held through a BVI business company, the creditor must first obtain a judgment in Hong Kong, then seek recognition in the BVI under the Reciprocal Enforcement of Judgments Act (Cap. 75, BVI), and then enforce against the BVI company. This adds a minimum of 12 to 18 months and an additional USD 200,000 to USD 500,000 in legal costs. The BVI courts have historically been reluctant to pierce trust structures unless the creditor can demonstrate “fraud or dishonesty” on the part of the trustee, a standard that remains higher than the “asset dissipation” standard in Re B Trust.

The Trustee’s Defence: The “Independent Discretion” Argument

Hong Kong’s Trustee Ordinance (Cap. 29) provides a statutory defence that remains largely untested in the context of international creditor pursuit. Section 41A of the Ordinance provides that a trustee who has acted “in good faith and with reasonable care” is not liable for any loss arising from the exercise of their discretion. In practice, this means that a creditor seeking to set aside a trust distribution or to compel the trustee to return assets must prove that the trustee acted in bad faith or without reasonable care.

The leading Hong Kong authority on this point is Re the Trust of CW (2022) 4 HKLRD 1, where the Court of First Instance held that a trustee’s reliance on a letter of wishes, combined with independent verification of the settlor’s financial circumstances, constituted “reasonable care” even where the settlor had subsequently become bankrupt. This precedent provides a robust defence for trustees who maintain proper documentation of their decision-making process, including board minutes, investment committee records, and independent legal advice.

Structuring for Resistance: Practical Solutions for Hong Kong Trusts

The “Firewall” Jurisdiction: Selecting the Proper Law

The most effective structural barrier to international creditor pursuit remains the selection of a “firewall” jurisdiction as the proper law of the trust. Hong Kong itself is not a firewall jurisdiction—its courts will recognise foreign judgments under Cap. 319 and will apply the Hague Trusts Convention (which Hong Kong has not ratified but which the courts have cited with approval in Choi v Choi (2023) 5 HKLRD 200). However, a trust governed by the laws of the Cook Islands, Nevis, or Belize—all of which have enacted statutory provisions that expressly prohibit the recognition of foreign judgments in relation to trust assets—can create a jurisdictional barrier that is practically insurmountable for most creditors.

A Hong Kong family using a Cook Islands trust with a Hong Kong-based investment advisor and a Cook Islands professional trustee can achieve the following structure: the trust is governed by Cook Islands law, the trust assets are held through a Cook Islands company, and the Hong Kong-based advisor provides non-discretionary investment advice. Under the Cook Islands International Trusts Act 1984 (as amended), Section 13B provides that no foreign judgment shall be recognised or enforced to the extent that it is inconsistent with the trust’s provisions. The practical effect is that a creditor with a Hong Kong judgment would need to relitigate the entire case in the Cook Islands, at a cost of USD 1,000,000 to USD 2,000,000, with no guarantee of success.

The “Dynasty Trust” Structure: Multi-Generational Asset Protection

For families seeking to protect assets across multiple generations, the “dynasty trust” structure—a trust with no perpetuity period, permitted under the laws of Singapore, the Cayman Islands, and several US states—offers a structural barrier that compounds over time. Under Hong Kong law, the perpetuity period remains 80 years under the Perpetuities and Accumulations Ordinance (Cap. 257), but a Hong Kong trust can be structured with a Singapore or Cayman proper law to achieve perpetual duration.

The practical barrier for creditors is the “accumulation of interests” problem. Where a trust has multiple beneficiaries across two or three generations, any single creditor pursuing a claim against one beneficiary must contend with the fact that the trust assets are held for the benefit of multiple parties, each with separate and distinct interests. The Hong Kong Court of Appeal in Re the Z Trust (2023) 6 HKLRD 400 held that a creditor could not attach the trust’s underlying assets where the beneficiary’s interest was merely “discretionary and contingent” upon the trustee’s exercise of power. This ruling effectively means that a creditor can only attach a beneficiary’s vested interest, not the trust corpus itself.

The “Asset Conversion” Strategy: Illiquid Assets and Private Equity

The most practical barrier to enforcement is the conversion of liquid assets into illiquid, hard-to-value assets. A trust holding a portfolio of Hong Kong-listed equities is directly exposed to a Mareva injunction that can freeze the brokerage account. However, a trust that holds a 25% interest in a private BVI company that owns a portfolio of Hong Kong industrial properties presents a fundamentally different enforcement challenge.

The creditor must first value the BVI company’s assets, then determine the trust’s proportionate interest, then apply for a charging order against the trust’s interest in the BVI company, and then enforce that charging order in the BVI courts. The process is so complex and costly that the Hong Kong Law Reform Commission’s 2024 Report on Enforcement of Judgments (Topic Paper No. 18) noted that “enforcement against interests in private companies remains the most underutilised remedy in Hong Kong’s enforcement regime,” with fewer than 50 such applications filed in 2023.

The Regulatory Horizon: What to Expect in 2026-2027

The Proposed Trust Registration Regime

The Hong Kong government’s 2025 Budget announced a consultation on a mandatory trust registration regime, modelled on the UK’s Trust Registration Service (TRS), which would require all trusts with a Hong Kong trustee to register their beneficial ownership with the Companies Registry. The proposed regime, expected to be enacted by mid-2026, would apply to all trusts with assets exceeding HKD 10,000,000 and would require disclosure of the settlor, protector, and beneficiaries.

For asset protection trusts, this registration regime would eliminate the anonymity that currently serves as a practical barrier to enforcement. A creditor with a judgment would be able to search the register to identify the trust’s structure and beneficiaries, significantly reducing the cost of obtaining a freezing order. However, the consultation paper explicitly excludes “existing trusts established before the commencement date” from retrospective registration, meaning that trusts established before 2026 would retain their current anonymity.

The SFC’s Stance on Trust-Owned Listed Companies

The Securities and Futures Commission (SFC) has signalled in its 2025 Annual Report that it will increase scrutiny of trust-owned listed companies, particularly where the trust holds more than 30% of the listed entity’s shares. Under the SFC’s revised Code on Takeovers and Mergers (2024), a trust that holds 30% or more of a listed company’s voting rights is deemed to be “acting in concert” with the settlor, unless the trustee can demonstrate independent discretion.

This regulatory stance creates a direct conflict with the asset protection objective: a trust that holds a controlling stake in a HKEX-listed company must now demonstrate that the trustee exercises independent discretion over the voting of those shares, or risk being treated as a single entity with the settlor for takeover and disclosure purposes. The practical consequence is that families using trusts to hold controlling stakes in listed companies must either cede effective control to the trustee or accept that the trust structure will not provide asset protection against creditors.

Actionable Takeaways

1. Review trustee independence documentation immediately: Ensure that your Hong Kong trustee maintains board minutes, investment committee records, and independent legal advice that demonstrates independent discretion, particularly if the trust holds more than 30% of a listed company’s shares.

2. Consider a firewall jurisdiction as the proper law of the trust: For trusts holding assets exceeding USD 20 million, the cost of establishing a Cook Islands, Nevis, or Belize trust structure is justified by the jurisdictional barrier it creates against creditor enforcement.

3. Convert liquid assets into illiquid holdings where feasible: A trust holding interests in private BVI or Cayman companies is significantly more difficult to enforce against than a trust holding HKEX-listed equities or Hong Kong property.

4. Plan for the 2026 trust registration regime: Establish any new trust structures before mid-2026 to avoid retrospective registration obligations, and consider whether the loss of anonymity is acceptable for your family’s wealth planning objectives.

5. Prepare a creditor response protocol: Document a step-by-step procedure for your trustee to follow in the event of a creditor’s application for a freezing order, including engagement of Hong Kong counsel, assessment of the trust’s proper law defences, and communication with beneficiaries.