Update: a Hong Kong holding company for the Cayman Islands investments

The two-tier holding structure – a Cayman Islands entity above, a Hong Kong company below – has been a standard arrangement for Asian and international groups investing into Greater China for many years. What is changing is the scrutiny applied to substance, beneficial ownership and treaty access at the Hong Kong layer. Groups that built the structure on the chart without addressing those three points face increasing enforcement and disclosure risk.

A Hong Kong holding company inserted between a Cayman Islands parent and the underlying investments must satisfy substance, beneficial ownership register (the Significant Controllers Register required under the Companies Ordinance (Cap. 622)) and, where treaty access is the goal, treaty-eligibility conditions – none of which is satisfied by incorporation alone. The Significant Controllers Register requirement has been in force since 1 March 2018; the foreign-sourced income exemption regime added economic-substance conditions effective from 1 January 2023.

This briefing sets out what has shifted, who it affects and the steps groups with this corridor should take now.

What has changed – and what has not

The corporate mechanics of the Hong Kong – Cayman Islands corridor are well-settled. A Cayman Islands holding company is incorporated under the Cayman Islands Companies Act; the Hong Kong operating or intermediate company is incorporated under the Companies Ordinance (Cap. 622). The Cayman parent holds shares in the Hong Kong company; the Hong Kong company holds the investment, the operating entity or the Greater China asset.

What has shifted is the compliance and enforcement environment at the Hong Kong layer. Three developments converge.

First, the foreign-sourced income exemption (FSIE) regime – the set of rules under the Inland Revenue Ordinance that governs when passive income received by a Hong Kong entity from outside Hong Kong is subject to profits tax – now requires the Hong Kong company to satisfy economic-substance conditions if it wishes to claim exemption on dividend, interest, royalty or disposal-gain income from its investments. The FSIE regime has applied since 1 January 2023, with amendments since. Substance is no longer a soft expectation; it is a hard condition for exemption.

Second, Pillar Two – the global minimum corporate tax rules, including the income-inclusion rule – applies in Hong Kong for fiscal years beginning on or after 1 January 2025 for in-scope multinational enterprise groups with consolidated revenue at or above EUR 750 million. Groups of that scale holding Cayman-domiciled structures with a Hong Kong intermediate layer must now model the top-up tax position at each entity level. The Cayman Islands has its own domestic minimum tax position to consider in parallel.

Third, the Significant Controllers Register obligation under Cap. 622 requires every Hong Kong-incorporated company to maintain an up-to-date register of the individuals who are its registrable significant controllers – the natural persons who ultimately own or control the entity. In a Cayman-above, Hong Kong-below structure, tracing that chain through the Cayman entity and any intermediate holding layers is not always straightforward. Regulators and counterparties – including banks conducting customer due diligence (the client-identification and verification process required under the Anti-Money Laundering and Counter-Terrorist Financing Ordinance) – now routinely request full SCR documentation as a condition of account opening or transaction execution.

Who this affects across the corridor

The groups most exposed are those that established the structure before 2023 and have not revisited the substance and compliance position since. That includes Asian family offices holding Greater China assets through a Cayman fund vehicle with a Hong Kong intermediate, regional operating groups that restructured into a Cayman holding entity for a capital-markets transaction and retained the Hong Kong intermediate afterwards, and foreign corporate groups that use a Hong Kong company as the treaty-access point for dividend flows from Mainland Chinese subsidiaries.

For the last category, the point is acute. Hong Kong's double-taxation arrangements with the Mainland – which can reduce withholding tax on dividends paid by a Mainland enterprise to a Hong Kong holding company – require the Hong Kong company to be the beneficial owner of the dividend, not merely a conduit. Where the Cayman parent has no substantive role and the Hong Kong company holds no genuine management function, Mainland tax authorities have, in our cross-border practice, increasingly declined to recognise beneficial ownership at the Hong Kong layer. The structure works on paper; it does not always work in a tax audit.

For a practical read on how the choice of intermediate vehicle affects treaty access and substance requirements across comparable offshore holding centres, see our analysis at Choosing between BVI and Cayman as a holding vehicle.

What to do now

Groups with a Cayman – Hong Kong structure should carry out a three-point review without delay.

First, map the substance position at the Hong Kong layer. Does the company have board meetings in Hong Kong? Are key decisions made there, or is management effectively exercised from offshore or from the Mainland? The FSIE exemption and treaty beneficial-ownership positions both turn on this question.

Second, verify that the Significant Controllers Register is current, accurate and reflects the post-restructuring beneficial-ownership chain. Where the Cayman parent is held through nominee arrangements or bearer structures, those need to be unwound or documented to meet the SCR and AML requirements.

Third, if the group falls within the Pillar Two revenue threshold, model the effective tax rate at the Hong Kong intermediate level and assess whether a top-up exposure arises. Cayman-domiciled entities in the same group may also be within scope under the Cayman's own minimum tax framework – the two positions need to be read together.

For a closer look at how these requirements have played out in practice on a comparable enforcement and restructuring matter, see our matter note at Economic substance requirements – offshore holding company matter.

Our holding structures practice covers the full design, review and remediation of multi-jurisdictional holding arrangements across Hong Kong, the Cayman Islands, the BVI and other principal offshore centres.

If the structure has not been reviewed since implementation, the compliance position under the FSIE regime, the SCR obligation and the Pillar Two rules may not match what the chart shows. The gap between the two is where enforcement risk accumulates.

To discuss the substance, beneficial-ownership and treaty-access position of your Cayman – Hong Kong structure, write to us at info@lockhartyip.com.

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Related

• Holding Structures
• Choosing Between Bvi Cayman Holding Vehicle Analysis
• Economic Substance Requirements Offshore Holding Company Matter

This publication is general information and does not constitute legal advice. For advice on your situation, contact info@lockhartyip.com.