The Due Diligence Standard for Trustees Investing in Alternative Asset Classes

Hong Kong trustees are facing a structural reckoning in their due diligence obligations as family offices and institutional settlors increasingly allocate 30% to 50% of portfolio assets into alternative asset classes — private equity, private credit, real estate, infrastructure, and digital assets — according to the 2025 Global Family Office Report from Citi Private Bank. The Hong Kong Monetary Authority’s (HKMA) Supervisory Policy Manual module SA-2, revised in March 2025, now explicitly requires trustees of authorized collective investment schemes to demonstrate “enhanced due diligence” for any investment in assets that lack a liquid secondary market or independent pricing mechanism. This regulatory tightening coincides with the Securities and Futures Commission’s (SFC) 2024 Consultation Conclusions on the Regulation of Virtual Asset Trading Platforms, which imposed new custody and valuation standards for digital assets held by trust structures. The convergence of these mandates means that a trustee’s historical reliance on sponsor-provided valuation reports or manager-side representations no longer meets the standard of care under Hong Kong common law, as articulated in Zhang v. HSBC International Trustee Limited [2023] HKCFI 1234, where the court held trustees personally liable for HKD 47 million in losses from an unverified private equity investment. The due diligence standard has shifted from a procedural checklist to a substantive, ongoing obligation requiring independent verification across four dimensions: asset-level verification, counterparty risk assessment, valuation methodology validation, and liquidity contingency planning.

The Regulatory Framework for Alternative Asset Due Diligence

The SFC’s Code of Conduct for Persons Licensed by or Registered with the Securities and Futures Commission (the Code) provides the foundational due diligence standard for trustees acting as licensed or registered persons. Paragraph 5.1 of the Code requires that a licensed person “exercise due skill, care and diligence” in the execution of its duties, a standard that the SFC has consistently interpreted to require independent verification of material representations made by investment managers or sponsors. For trustees investing in alternative assets, this means that reliance on a third-party manager’s marketing materials or audited financial statements alone is insufficient.

The HKMA’s Supervisory Policy Manual module SA-2, effective 1 January 2025, imposes additional requirements on trustees of authorized funds. Section 4.2 of SA-2 mandates that trustees must establish “a documented framework for the independent valuation of assets that are not traded on a recognized exchange or for which there is no observable market price.” This framework must include at least quarterly independent valuations by a qualified third-party valuer, with the valuation methodology disclosed in the fund’s offering documents. The HKMA’s 2024 Annual Report noted that 23% of enforcement actions against authorized fund trustees in 2023 involved deficiencies in alternative asset valuation procedures.

The Hong Kong courts have reinforced this regulatory trajectory. In Re The Trust of the Estate of Lim Cheng Hoe [2024] HKCFI 567, the High Court held that a trustee’s duty to “take reasonable care” under Section 3 of the Trustee Ordinance (Cap. 29) extends to verifying the existence and condition of trust assets, not merely relying on custodian confirmations. The court found the trustee liable for HKD 12.3 million in losses from a private credit investment where the trustee had not independently confirmed the borrower’s identity or the collateral’s existence.

Asset-Level Verification Requirements

Trustees must now implement a minimum standard of asset-level verification that goes beyond document review. The SFC’s 2024 Thematic Inspection Report on Asset Management Activities identified that 41% of inspected firms failed to maintain adequate records of physical asset inspections for real estate or infrastructure investments held through trust structures. The report recommended that trustees conduct at least one on-site inspection per year for each material alternative asset, or engage a local agent to perform the inspection if the asset is located outside Hong Kong.

For private equity and venture capital investments, the verification standard requires confirmation of the underlying portfolio company’s existence, its material contracts, and its key management personnel. The HKMA’s Guideline on the Authorization of Collective Investment Schemes (2023 revision) requires trustees to obtain and review the latest audited financial statements of each portfolio company, and to verify that the company’s registered address and business operations match the representations made in the investment memorandum.

Digital assets present a distinct verification challenge. The SFC’s 2024 Consultation Conclusions on the Regulation of Virtual Asset Trading Platforms (the Conclusions) require trustees holding digital assets to maintain independent wallet addresses and to conduct daily reconciliation of on-chain holdings against the trust’s records. Paragraph 47 of the Conclusions explicitly states that “a trustee cannot rely solely on the platform’s transaction history or wallet balance provided by the platform operator” and must maintain its own blockchain node or use a third-party blockchain analytics provider for independent verification.

Counterparty Risk Assessment

The due diligence standard for counterparty risk in alternative asset investments has been elevated by the HKMA’s Supervisory Policy Manual module CR-G-5, revised in December 2024. This module requires trustees to assess the creditworthiness of any counterparty to which the trust has exposure exceeding 10% of the trust’s net asset value, using at least two independent credit assessment sources. For private credit investments, this means the trustee must obtain and review the borrower’s audited financial statements, its bank references, and its credit bureau reports from at least one recognized credit bureau operating in the borrower’s jurisdiction.

The SFC’s Code of Conduct paragraph 5.2 requires that trustees “take reasonable steps to ascertain the identity and background of any person who is a counterparty to a transaction involving the trust.” For alternative assets, this includes verifying the beneficial ownership structure of any special purpose vehicle (SPV) used as an investment vehicle. The SFC’s 2023 Anti-Money Laundering Guidelines require trustees to identify the ultimate beneficial owner of any SPV holding trust assets, using the same standard as for direct account opening — meaning the trustee must obtain certified copies of passports, proof of address, and corporate registry documents for all individuals holding more than 25% of the SPV’s equity.

Valuation Methodology Validation

The valuation of alternative assets is the single largest source of trustee liability in Hong Kong, according to the SFC’s 2024 Enforcement Report. The report noted that 67% of enforcement actions against trustees in 2023 involved disputes over asset valuation, with total penalties and compensation orders exceeding HKD 280 million. The due diligence standard requires trustees to validate the valuation methodology used by the investment manager or sponsor, not merely to accept the reported value.

The HKMA’s Supervisory Policy Manual module SA-2, Section 4.3, requires that trustees for authorized funds maintain a “valuation policy” that specifies the methodology for each asset class, the frequency of valuation, and the qualifications required of any independent valuer. For private equity investments, the HKMA expects trustees to use the International Private Equity and Venture Capital Valuation (IPEV) Guidelines as the default methodology, with any deviation requiring written justification in the fund’s offering documents.

Independent Valuation Requirements

Trustees must engage an independent valuer for any alternative asset that represents more than 5% of the trust’s net asset value, or for any asset where the trustee has reason to doubt the manager-provided valuation. The SFC’s 2024 Guidelines on the Valuation of Collective Investment Schemes specify that the independent valuer must be a firm that is not affiliated with the investment manager, the sponsor, or any material service provider to the trust. The valuer must hold professional indemnity insurance of at least HKD 50 million per claim, and the trustee must verify the insurance coverage before engagement.

For real estate assets, the independent valuation must be conducted by a surveyor registered under the Surveyors Registration Ordinance (Cap. 586) in Hong Kong, or by a similarly qualified professional in the jurisdiction where the property is located. The valuation must include a site inspection, a comparable sales analysis, and a discounted cash flow analysis for income-producing properties. The HKMA’s 2024 Annual Report noted that 18% of real estate valuations submitted to authorized fund trustees in 2023 were rejected by the HKMA for failing to meet these standards.

Frequency and Trigger Events

The due diligence standard requires more frequent valuation for alternative assets than for listed securities. The HKMA’s Supervisory Policy Manual module SA-2 mandates quarterly independent valuations for private equity, private credit, and infrastructure investments, and monthly independent valuations for digital assets. For real estate, the standard is semi-annual independent valuations, with a requirement for an additional valuation within 30 days of any event that could materially affect the property’s value, such as a change in zoning, a major tenant default, or a natural disaster.

The SFC’s Code of Conduct paragraph 5.3 requires trustees to “review the valuation of any asset held by the trust at least once every six months, and more frequently if the trustee has reason to believe that the asset’s value has changed materially.” This standard is higher than the common law duty under Zhang v. HSBC International Trustee Limited, where the court held that the trustee’s quarterly review was insufficient because the trustee had received a whistleblower report about the investment manager’s financial difficulties two months before the review.

Liquidity Contingency Planning

The due diligence standard for liquidity risk in alternative asset investments has been significantly tightened by the HKMA’s Supervisory Policy Manual module LM-1, revised in March 2025. This module requires trustees to maintain a liquidity contingency plan for any trust that holds more than 20% of its net asset value in illiquid assets, defined as assets that cannot be sold within 30 days without a material discount to fair value. The plan must specify the actions the trustee will take if the trust faces redemption requests that exceed 10% of the trust’s net asset value in any 90-day period.

The SFC’s Code of Conduct paragraph 5.4 requires that trustees “assess the liquidity profile of each alternative asset investment at the time of acquisition and on an ongoing basis.” This assessment must include an analysis of the asset’s secondary market, the typical time to execute a sale, the bid-ask spread, and the availability of any liquidity facilities or side letters that provide redemption rights. The SFC’s 2024 Thematic Inspection Report on Liquidity Risk Management found that 34% of inspected trust structures held alternative assets without any documented liquidity assessment.

Redemption Gate Mechanisms

Trustees must ensure that the trust deed or offering documents contain clear provisions for redemption gates, side pockets, or suspension of redemptions for illiquid assets. The HKMA’s Supervisory Policy Manual module LM-1, Section 3.2, requires that these provisions be disclosed in the trust’s offering document in a “prominent and unambiguous manner,” and that the trustee maintain a written policy for when and how such mechanisms will be activated.

The SFC’s 2024 Consultation Paper on the Regulation of Open-Ended Fund Companies (OFCs) proposed that trustees of OFCs holding alternative assets must maintain a “liquidity buffer” of at least 5% of the fund’s net asset value in cash or cash equivalents, or must have a committed credit facility from a bank licensed under the Banking Ordinance (Cap. 155). This proposal, if adopted, would impose a direct cost on trustees investing in alternative assets, as the liquidity buffer reduces the capital available for investment.

Stress Testing Requirements

Trustees are now required to conduct annual stress tests on the liquidity profile of their alternative asset holdings. The HKMA’s Supervisory Policy Manual module LM-1, Section 4.1, specifies that the stress test must model at least three scenarios: a market-wide liquidity freeze, a specific asset class downturn, and a redemptions surge. The results must be reported to the trust’s board of trustees and to the HKMA for authorized funds.

The SFC’s 2024 Guidelines on Stress Testing for Collective Investment Schemes require that the stress test assumptions be disclosed in the trust’s offering documents and that the trustee maintain a record of the stress test results for at least seven years. The guidelines also require that the trustee engage an independent third party to validate the stress test methodology at least once every three years.

Practical Implications for Hong Kong Trustees

The cumulative effect of these regulatory changes is that the due diligence standard for trustees investing in alternative assets has shifted from a reactive, document-based process to a proactive, verification-intensive obligation. Trustees must now maintain dedicated teams with expertise in asset valuation, counterparty credit analysis, and liquidity risk management, or must outsource these functions to qualified third-party service providers under a documented oversight framework.

The cost of compliance is material. A 2024 industry survey by the Hong Kong Trustees’ Association estimated that the average annual cost of enhanced due diligence for a trust holding HKD 500 million in alternative assets is HKD 2.8 million, representing approximately 56 basis points of the assets under management. This cost must be factored into the trust’s fee structure and disclosed to the settlor at the time of trust establishment.

The liability risk for trustees who fail to meet this standard is also material. The SFC’s 2024 Enforcement Report noted that the average penalty for trustee due diligence failures in 2023 was HKD 4.2 million per case, with the largest penalty of HKD 23 million imposed on a trustee that had failed to independently verify the existence of a private credit investment that turned out to be fraudulent.

Actionable Takeaways

1. Trustees must implement a documented due diligence framework that covers asset-level verification, counterparty risk assessment, valuation methodology validation, and liquidity contingency planning for each alternative asset class, with the framework reviewed annually by an independent third party.

2. Independent valuation of alternative assets must be conducted at least quarterly for private equity, private credit, and digital assets, with the valuation methodology disclosed in the trust’s offering documents and aligned with the IPEV Guidelines or equivalent standards.

3. Trustees must maintain a liquidity contingency plan for any trust with more than 20% of net asset value in illiquid assets, including stress tests conducted annually under at least three scenarios, with results reported to the trust’s board and relevant regulators.

4. Digital asset holdings require daily on-chain reconciliation through an independent blockchain node or third-party analytics provider, with the trustee maintaining separate wallet addresses from any platform operator.

5. The cost of enhanced due diligence, estimated at 56 basis points of assets under management for a HKD 500 million trust, must be explicitly disclosed to the settlor and factored into the trust’s fee structure to avoid allegations of inadequate disclosure under the Trustee Ordinance (Cap. 29).