Mergers and Acquisitions in Hong Kong: Legal Framework and Practice

Overview: M&A in Hong Kong

Hong Kong is one of the most active M&A markets in the Asia-Pacific region. Its common law legal system, low and transparent tax regime, absence of capital gains tax, free flow of capital, and position as the primary gateway between mainland China and international capital markets make it an attractive jurisdiction for both inbound and outbound transactions.

The market spans a wide range of transaction types: private acquisitions of closely held companies, private equity buy-outs, cross-border acquisitions involving mainland Chinese targets or buyers, and public M&A involving companies listed on the Stock Exchange of Hong Kong (HKEX). Slotine advises on private M&A and cross-border transactions. This guide focuses on private deal structures and the regulatory framework applicable to both private and public M&A. It covers the legal considerations most relevant to buyers and sellers.

Transaction Structures: Private M&A

Private M&A transactions in Hong Kong are structured as either a share purchase or an asset purchase. The choice of structure is one of the first and most consequential decisions in any deal.

Share Purchase

In a share purchase, the buyer acquires the shares of the target company. Because ownership of the shares carries ownership of the underlying business, all the target’s assets, liabilities and obligations transfer automatically. The buyer steps into the position of the seller as shareholder without the need to individually identify and transfer each asset or contract.

This structural simplicity is the primary attraction of a share deal. Existing licences, permits and contracts remain with the target company and continue in force, subject to any change-of-control provisions that may require authorities or third-party consent. Employees remain employed by the target with continuity of employment.

The corresponding risk is that the buyer also inherits all the target’s liabilities without individually reviewing each one of them, including historic liabilities that may not have been disclosed or identified during due diligence. Warranties, indemnities and the disclosure process are the primary mechanisms for managing this risk.

Asset Purchase

In an asset purchase, the buyer acquires specified assets and assumes only the liabilities it agrees to take on. This flexibility to select assets and exclude unwanted liabilities is the main advantage over a share deal, and it is particularly useful where the target has significant contingent liabilities or where the buyer is acquiring only part of a business.

The complexity of an asset deal is greater. Each asset must be individually identified and an adequate transfer mechanism put in place: assignments for contractual rights, novations for contracts where the counterparty must consent, and change of statutory registration for certain assets. Employees do not transfer automatically; employment must be terminated by the seller and new contracts offered by the buyer following the provisions of the Employment Ordinance (EO, Cap. 57).

The Transfer of Businesses (Protection of Creditors) Ordinance (TOBO, Cap. 49) is an important Hong Kong-specific consideration in asset deals. Under TOBO, a transferee of a business becomes liable for the debts and obligations of the transferring business for one year after the transfer date, in addition to the transferor. A transferee can avoid this by complying with a statutory notice procedure and ensuring no creditor objects within the prescribed period.

Share Deal vs Asset Deal: Key Comparisons

Transaction Structures: Public M&A

Public M&A transactions involving Hong Kong-listed companies take one of two forms: a takeover offer or a scheme of arrangement. Both are governed by the Takeovers Code issued by the Securities and Futures Commission (SFC).

Takeover Offer

A takeover offer is a contractual offer made by the acquirer directly to all shareholders of the target to acquire their shares. It can be voluntary or mandatory. A mandatory general offer is triggered when a person (together with concert parties) acquires 30% or more of the voting rights of a listed company, or when a person already holding between 30% and 50% increases its holding by more than 2% in any 12-month period.

Takeover offers allow the acquirer to gain control more quickly than a scheme, though not necessarily 100% ownership. Where the acquirer obtains 90% or more of the shares to which the offer relates, it may exercise compulsory acquisition rights to acquire the remaining shares.

Scheme of Arrangement

A scheme of arrangement is a court-approved procedure used primarily for privatisations and going-private transactions. It requires approval by 75% of the votes of disinterested shareholders present and voting, with no more than 10% of all disinterested shares voted against. If the vote passes, the court sanctions the scheme and it binds all shareholders, including dissenters.

Schemes are an all-or-nothing mechanism: if the approval thresholds are not met, the transaction fails. They take longer to complete than a takeover offer due to the court process, but they are the preferred structure when 100% ownership is the objective from the outset.

Note: Slotine’s M&A practice focuses on private M&A transactions. For public M&A and Takeovers Code compliance, specialist listed company counsel will typically be required.

The Legal and Regulatory Framework

Companies Ordinance (Cap. 622)

The Companies Ordinance is the principal legislation governing Hong Kong-incorporated companies. For M&A purposes, key provisions include: share transfer mechanics; financial assistance rules prohibiting a Hong Kong company from providing assistance for the acquisition of its own shares, subject to whitewash procedures (see below); statutory amalgamation for wholly-owned subsidiaries; and court-approved schemes of arrangement for privatisations and going-private transactions.

Stamp Duty

Stamp duty is payable on the transfer of shares in a Hong Kong company at the rate of 0.2% of the higher of the consideration paid or the net asset value of the shares. This is split equally between buyer and seller, each paying 0.1%. Payment is due within two days of the execution of the contract notes if the sale or purchase is effected in Hong Kong, and thirty days if effected elsewhere.

By contrast, the transfer of immovable property in Hong Kong attracts stamp duty at rates of up to 8.5% depending on value. For transactions where the target holds significant Hong Kong real estate, the stamp duty differential between a share deal and an asset deal can be substantial and is a key factor in structuring decisions. Unlike several European jurisdictions, Hong Kong does not currently impose stamp duty on share transfers by reference to the nature of the target’s underlying assets — though tax advice should always be obtained to confirm the position and assess any anti-avoidance exposure under the Stamp Duty Ordinance.

Hong Kong does not impose capital gains tax, and dividends paid by a Hong Kong company are not subject to withholding tax or classified as taxable income. However, both capital gains and dividends derived from certain foreign sources may be subject to tax under the Foreign-Sourced Income Exemption regime introduced in 2023. These features make Hong Kong a tax-efficient jurisdiction for structuring acquisitions and exits, though tax advice should always be obtained to confirm the position in light of the FSIE regime and each investor’s specific circumstances.

Regulatory Approvals

There are no general restrictions on foreign investment in Hong Kong and no cross-sector merger control regime (unlike the EU or US). The only merger control rule that applies is the Merger Rule under the Competition Ordinance (Cap. 619), which applies exclusively to mergers involving telecommunications carrier licensees.

However, sector-specific regulatory approvals are required in certain industries:

Banking: approval from the Hong Kong Monetary Authority is required for acquisitions of prescribed shareholdings in licensed banks, restricted licence banks and deposit-taking companies under the Banking Ordinance (Cap. 155).

Insurance: transfers of long-term and general insurance businesses require Insurance Authority approval, and in the case of long-term insurance, court approval, under the Insurance Ordinance (Cap. 41).

Securities and asset management: change-of-control requirements apply to SFC-licensed corporations under the Securities and Futures Ordinance (Cap. 571).

Telecommunications and broadcasting: the Merger Rule applies; the Communications Authority and Competition Commission have concurrent jurisdiction.

Identifying applicable regulatory approvals early is critical. A missed filing can delay or, in some cases, invalidate a transaction. For regulated targets, Slotine coordinates with specialist regulatory counsel as required.

Financial Assistance

Hong Kong law prohibits a private or public Hong Kong-incorporated company from providing financial assistance (whether directly or indirectly) for the acquisition of its own shares, subject to limited exceptions. Financial assistance can take many forms: gifts, guarantees, loans or waivers. Where assistance is required, one of three whitewash procedures must be followed, each requiring directors’ resolutions, a solvency statement and strict procedural compliance.

This rule is particularly relevant in leveraged buy-outs where the target’s assets or cash flows are intended to service acquisition debt. Legal advice should always be obtained before any financial assistance arrangement is put in place.

Key Transaction Documents

A private M&A transaction in Hong Kong involves a suite of documents. The principal documents and their function are:

Pre-signing Documents

Non-disclosure agreement (NDA): restricts the use of confidential information shared during due diligence and typically includes non-solicitation obligations.

Letter of intent (LOI) or term sheet: sets out agreed commercial terms. Usually non-binding except for specific provisions such as exclusivity, confidentiality and governing law.

Exclusivity agreement: obliges the seller to stop marketing the target for a defined period while the buyer completes due diligence and negotiations.

Principal Transaction Documents

Share purchase agreement (SPA) or asset purchase agreement (APA): the definitive agreement governing the transaction. See Slotine’s guide to Share Purchase Agreements in Hong Kong for a detailed treatment.

Disclosure letter: prepared by the seller’s lawyers; qualifies the warranties in the SPA or APA by setting out disclosed information that limits the seller’s liability for warranty claims.

Ancillary documents: instrument of transfer, sold and bought notes (for share transfers of Hong Kong companies), shareholders agreements (where less than 100% is acquired), deeds of tax indemnity and guarantee agreements as applicable.

Due Diligence in Hong Kong M&A

Legal due diligence in a Hong Kong M&A transaction typically covers: the seller’s title to the shares or assets; the target’s title to its own assets, key contracts and financing arrangements; employment contracts, regulatory and licensing matters; litigation; insolvency; and compliance with applicable law.

Public Searches

Standard public searches in Hong Kong include:

Companies Registry search: incorporation details, share capital, shareholders, officers, registered charges. Note that financial statements of private companies are not publicly available.

Litigation search: identifies proceedings in the Hong Kong courts to which the target is a party.

Solvency/winding-up search: confirms whether the target is subject to compulsory winding-up proceedings.

Land Registry search: for targets with real property, identifies ownership, encumbrances and registered rights.

Intellectual Property Department: confirms registered trademarks, patents and designs.

Hong Kong-Specific Due Diligence Considerations

TOBO exposure: on asset deals, the transferee’s potential liability for the target’s business debts under TOBO must be assessed and managed.

Data privacy: the Personal Data (Privacy) Ordinance (Cap. 486) governs data handling in Hong Kong. For targets with EU nexus, GDPR extraterritorial reach may also apply.

No automatic disclosure of financial statements: unlike many jurisdictions, private company accounts are not filed at the Companies Registry. Financial due diligence depends on voluntary disclosure by the seller.

Significant controller register: the identity of beneficial owners and significant controllers is not publicly searchable; information must be obtained through the target directly.

Warranties, Indemnities and Liability Limitations

The seller in a Hong Kong M&A transaction will give representations and warranties about the target: its shares, financial statements, material contracts, intellectual property, litigation, employees and tax position. These are the buyer’s primary contractual protection against undisclosed liabilities.

Liability limitations are a standard part of every negotiation. Typical market parameters in Hong Kong are:

General warranties: cap of 30–50% of purchase price; time limit of 18 to 36 months.

Title and fundamental warranties: cap of 100% of purchase price; time limit of three years.

Tax warranties and indemnities: cap of 30% to 50% of purchase price; time limit of seven to ten years.

De minimis and basket thresholds: typically 0.1% of purchase price for individual claims; 1% of purchase price for the aggregate basket.

Warranty and indemnity (W&I) insurance has grown significantly in Hong Kong and is now a well-established feature of larger deals, particularly private equity transactions. It allows sellers to achieve a clean exit while giving buyers recourse for warranty breaches against the insurer rather than the seller directly.

Cross-Border M&A: Hong Kong as a Hub

Hong Kong’s role as the pre-eminent gateway between mainland China and international capital markets means that a large proportion of M&A transactions involving Hong Kong have a cross-border dimension. Hong Kong-incorporated holding companies are commonly used as the acquisition vehicle for investments into mainland China, and Hong Kong law is frequently chosen as the governing law for cross-border SPA and joint venture agreements across the Asia-Pacific region.

Mainland China Dimensions

Acquisitions involving mainland Chinese targets or buyers raise considerations beyond Hong Kong law: approval from the State Administration for Market Regulation (SAMR) for mergers meeting the notification thresholds; foreign investment restrictions and the negative list; and RMB remittance and foreign exchange controls. Early identification of these requirements is essential to realistic deal timing.

Governing Law and Dispute Resolution

Hong Kong law is widely used as the governing law for M&A agreements across the region, valued for its predictability, the quality of its judiciary and the enforceability of judgments and arbitral awards. Hong Kong arbitral awards are enforceable in over 160 jurisdictions under the New York Convention. HKIAC arbitration is commonly specified as the dispute resolution mechanism in cross-border M&A agreements.

How Slotine Can Help

Slotine advises primarily on the acquisition of Hong Kong-headquartered regional groups by European strategic buyers, with particular depth in founder-led business sales and French-speaking European acquirors. Our M&A work covers the full transaction cycle: deal structuring, due diligence coordination, SPA and APA drafting and negotiation, regulatory filings, completion mechanics, and post-closing disputes.

Our cross-border experience spans transactions involving parties in Mainland China, Singapore, the United Kingdom and France, predominantly in the US$1 million to US$50 million range across sectors including hospitality, cosmetics, garments, manufacturing and compliance technology.

Contact Slotine

The Slotine M&A cluster covers each phase of the deal lifecycle with dedicated guides. Follow the links below for the detailed statutory and practical treatment of each topic.