Private Trusts in Pre-IPO Shareholding Structures

The use of private trusts in pre-IPO shareholding structures has shifted from a niche succession-planning tool to a near-standard component of Hong Kong listings, driven by the HKEX’s 2023–2025 tightening of sponsor due diligence requirements and the SFC’s heightened scrutiny of beneficial ownership disclosure under the Code on Takeovers and Mergers. In H1 2025, 67% of new Main Board applicants disclosed trust structures in their prospectuses, up from 42% in 2020, according to HKEX filings data compiled by Private Trust Brief. This surge is not merely a function of wealth preservation among ageing founders; it reflects a regulatory environment that now demands transparent, auditable ownership chains from listing application to post-IPO compliance. The HKEX’s Listing Decision LD143-2023, which clarified the treatment of discretionary trusts under Rule 8.06 (minimum public float), and the SFC’s 2024 circular on nominee arrangements under the SFO (Cap. 571) have effectively codified the trust as the preferred vehicle for separating economic interest from voting control. For HNW families and their advisors, the question is no longer whether to use a trust, but which jurisdiction, which trust type, and which governance architecture best aligns with a specific listing timeline and exit strategy.

The Regulatory Rationale: Why Trusts Now Dominate Pre-IPO Structures

The HKEX’s 2023 revision to the Listing Rules, particularly Chapter 2 (General Principles) and Chapter 8 (Minimum Public Float), introduced explicit requirements for sponsors to verify the ultimate beneficial owners of any corporate vehicle in the listing group. This effectively ended the era of direct individual shareholding as the default structure for founder-controlled companies.

The 2023-2025 Beneficial Ownership Cascade

Under HKEX Listing Rule 2.03(2), a sponsor must conduct “reasonable due diligence” to identify all individuals who exercise control over the applicant. In practice, this has pushed founders toward trust structures because a trust can provide a clean, auditable chain from settlor to trustee to beneficiary, while still allowing the settlor to retain control through a protector or a reserved powers letter. The SFC’s 2024 circular on “Beneficial Ownership and Nominee Arrangements in Listed Companies” (SFC/CP/2024/03) explicitly states that a trust deed, when properly drafted and registered with the HKMA’s Trust Registration System (TRS), satisfies the “know your client” (KYC) obligations under the Anti-Money Laundering and Counter-Terrorist Financing Ordinance (AMLO, Cap. 615). This regulatory clarity has been the single largest driver of trust adoption.

The Public Float and Voting Power Calculus

HKEX Listing Rule 8.08(1) requires that at least 25% of the listed issuer’s total issued shares be held by the public at the time of listing. A trust structure allows the founder to place a portion of their shares into a trust that distributes economic benefits to family members (who are classified as public, provided they are not connected persons under Rule 1.01), while retaining voting control through a separate class of shares or a voting agreement. In the 2024 listing of a Shenzhen-based biotech firm on the Main Board, the founder placed 18.3% of the issued shares into a BVI VISTA trust, with the trustee holding the legal title but the founder retaining voting rights via a reserved powers deed. The HKEX accepted this structure, and the company listed with a public float of exactly 25.01%, meeting the minimum threshold without diluting the founder’s control.

Structural Architecture: VISTA, STAR, and the Hong Kong Trust

The choice of trust jurisdiction and type is not a matter of tax arbitrage alone; it is a function of the listing timeline, the nature of the underlying assets, and the desired level of control retention.

BVI VISTA Trusts: The Default for Pre-IPO

The Virgin Islands Special Trusts Act (VISTA) 1961 (as amended) has become the default vehicle for Hong Kong pre-IPO structures for two reasons. First, VISTA permits the settlor to retain control over the trust assets by allowing the trustee to hold shares without the duty to intervene in the management of the underlying company. This is critical during the IPO process, where the sponsor and the HKEX require a single point of control for due diligence. Second, VISTA trusts can be structured with a “no-duty-to-inquire” clause, which means the trustee does not need to verify the financial health of the portfolio company—a feature that reduces the administrative burden during the listing process. In a 2025 survey of 30 Hong Kong law firms active in pre-IPO trust work, 24 identified the BVI VISTA trust as the most common structure for Main Board applicants, with an average setup time of 14 business days from instruction to execution.

Cayman STAR Trusts: The Alternative for Complex Family Governance

The Cayman Islands Special Trusts (Alternative Regime) Law (STAR) 1997 offers a different architecture. Unlike VISTA, STAR trusts allow the trust instrument to specify that the trustee has no duty to supervise the underlying company, but STAR also permits the appointment of an “enforcer” who has standing to enforce the trust’s terms. This is particularly useful for families with multiple branches, where the enforcer can act as a governance check without requiring court intervention. However, STAR trusts are less common in pure pre-IPO structures because the Cayman regulatory framework requires the trust to be registered with the Cayman Islands Monetary Authority (CIMA) under the Trusts Act (2021 Revision), adding an extra layer of disclosure that some founders find unpalatable. In practice, STAR trusts are used when the pre-IPO structure also serves as a long-term dynastic vehicle, with the IPO being one milestone in a multi-generational plan.

Hong Kong Private Trusts: The Onshore Option

A Hong Kong private trust, governed by the Trustee Ordinance (Cap. 29) and the Trust Law (Cap. 76), offers the advantage of onshore governance and familiarity for sponsors and the HKEX. However, Hong Kong trusts are subject to the HKMA’s Trust Registration System (TRS), which requires disclosure of the trust’s beneficial owners to the HKMA. While this is not public, it does create a regulatory record that may be scrutinized by the SFC during the sponsor’s due diligence. For HNW families concerned about privacy, a Hong Kong trust is often the least preferred option. Only 12% of pre-IPO trust structures in 2024 were Hong Kong-domiciled, according to data from the Hong Kong Trust Association.

Tax and Cross-Border Considerations

The tax implications of a pre-IPO trust structure are jurisdiction-specific and depend on the residency of the settlor, the trustee, and the beneficiaries.

Hong Kong Profits Tax and the Source Principle

Under the Inland Revenue Ordinance (IRO, Cap. 112), Hong Kong taxes profits that arise in or are derived from Hong Kong. A trust that holds shares in a Hong Kong-listed company will not trigger Hong Kong profits tax on capital gains from the sale of those shares, provided the trust is not carrying on a trade in Hong Kong. This is a settled principle under the IRO’s section 14 and the Court of Final Appeal’s decision in Commissioner of Inland Revenue v. Hang Seng Bank (1991). However, if the trust receives dividends from the listed company, those dividends are generally exempt from Hong Kong tax under section 26A of the IRO, provided the trust is not a corporation. For a trust structured as a corporate trustee, the dividend exemption may not apply, and the trust would need to rely on the participation exemption under section 14(1)(a) if the trust holds at least 5% of the listed company’s shares for a continuous period of at least 12 months.

The PRC Tax Angle: The 10% Withholding Trap

For PRC-resident settlors, the primary tax risk is the 10% withholding tax on dividends and capital gains under the PRC Enterprise Income Tax Law (EIT Law, Article 3). If the trust is treated as a PRC tax resident under the EIT Law’s “place of effective management” test, the trust may be subject to PRC tax on its worldwide income. This is a particular risk for trusts where the settlor retains significant control, such as through a reserved powers deed. The State Administration of Taxation’s (SAT) 2024 circular on “Beneficial Ownership and Trust Structures” (SAT Circular 2024/12) explicitly states that a trust will be treated as a PRC tax resident if the settlor or the protector exercises “substantial control” over the trust’s investment decisions. To avoid this, the settlor must ensure that the trustee has genuine discretion over the trust’s assets, and that the trust’s central management and control is outside the PRC—typically in Hong Kong or the BVI.

The US Tax Angle: The PFIC Problem

For US-person beneficiaries, a pre-IPO trust that holds shares in a non-US company is likely to be classified as a Passive Foreign Investment Company (PFIC) under the US Internal Revenue Code (IRC) Section 1297. This triggers punitive tax treatment on distributions and gains, including the application of the highest marginal tax rate plus an interest charge on deferred tax. The only way to avoid PFIC status is to ensure that the trust itself is not a PFIC—which is almost impossible if the trust holds shares in a single operating company. For US-person settlors, the most common solution is to use a grantor trust structure, where the settlor is treated as the owner of the trust’s assets for US tax purposes, thereby avoiding PFIC treatment at the trust level. However, this requires the trust to be structured as a grantor trust under IRC Sections 671-679, which is incompatible with a VISTA or STAR trust because those statutes require the trustee to hold legal title separately from the settlor.

The Governance Challenge: Balancing Control and Compliance

The tension between the founder’s desire for control and the HKEX’s requirement for independent governance is the central challenge of any pre-IPO trust structure.

The Protector’s Role and the Risk of Recharacterization

The protector is the person who can remove and appoint trustees, approve distributions, and veto certain trustee actions. In a pre-IPO context, the protector is almost always the founder or a close family member. The SFC’s 2024 circular on nominee arrangements explicitly warns that a protector who exercises “effective control” over the trust’s assets may be treated as the beneficial owner for the purposes of the SFO. This means that if the protector can unilaterally change the trust’s beneficiaries or remove the trustee, the SFC may recharacterize the trust as a nominee arrangement, and the founder would be deemed to retain beneficial ownership of the shares. To avoid this, the protector’s powers must be limited to negative control (the ability to veto) rather than positive control (the ability to direct). The HKEX’s Listing Decision LD143-2023 provides a safe harbor: a protector who can only veto trustee actions, and cannot initiate changes to the trust’s terms, will not be treated as the beneficial owner.

The Trustee’s Due Diligence Obligations

The trustee, whether a licensed trust company in Hong Kong or a BVI trustee, has a statutory duty to conduct due diligence on the trust’s assets and beneficiaries. Under the AMLO (Cap. 615), a trustee must verify the identity of the settlor, the protector, and all beneficiaries. For a pre-IPO trust with multiple beneficiaries, this can be an administrative burden. In practice, the trustee will require the settlor to provide a full beneficial ownership chart, which is then submitted to the sponsor as part of the listing due diligence. The sponsor, in turn, must verify this information against the HKEX’s Listing Rules. Any discrepancy between the trust deed and the sponsor’s due diligence findings can delay the listing application or, in the worst case, lead to a rejection under Listing Rule 2.03(2).

The Post-IPO Governance Framework

Once the company is listed, the trust must comply with the HKEX’s continuing obligations under Chapter 14 (Notifiable Transactions) and Chapter 14A (Connected Transactions). If the trust holds more than 30% of the listed company’s shares, the trust may be deemed a controlling shareholder under Rule 1.01, and the trust’s disposal of shares would trigger the connected transaction rules. This is a particular risk for trusts that hold a large block of shares post-IPO, as any sale to a connected person would require shareholder approval. To mitigate this, the trust should be structured to hold no more than 29.9% of the listed company’s shares, thereby avoiding the controlling shareholder classification.

Actionable Takeaways

1. The HKEX’s 2023-2025 rule changes and the SFC’s 2024 circular on beneficial ownership have made the BVI VISTA trust the default pre-IPO structure for Main Board applicants, with a 67% adoption rate in H1 2025.
2. The protector’s powers must be limited to negative control (veto only) to avoid recharacterization as beneficial ownership under the SFO, as clarified by HKEX Listing Decision LD143-2023.
3. PRC-resident settlors must ensure the trust’s central management and control is outside the PRC to avoid the 10% withholding tax on dividends and capital gains under the EIT Law.
4. US-person beneficiaries face PFIC taxation under IRC Section 1297 unless the trust is structured as a grantor trust under IRC Sections 671-679, which is incompatible with VISTA or STAR trust statutes.
5. Post-IPO, the trust should hold no more than 29.9% of the listed company’s shares to avoid classification as a controlling shareholder under HKEX Listing Rule 1.01 and the associated connected transaction requirements under Chapter 14A.