A share purchase agreement governed by Hong Kong or English law

A cross-border acquisition moves through three distinct decision points before documents are signed: which vehicle acquires the target, which law governs the agreement, and where a dispute is resolved if the deal goes wrong. For foreign principals acquiring or divesting shares in a Greater China business, the choice between Hong Kong law and English law – and the alignment of that choice with the transaction vehicle and the clearance perimeter – determines how the deal holds together after closing.

A share purchase agreement (SPA, the primary contract by which a buyer acquires shares in a target company from a seller) governed by Hong Kong or English law provides a commercially tested, common-law framework that is routinely recognised and enforceable across the principal jurisdictions in which our clients operate. Both governing-law choices engage the same body of contract and equity doctrine; the practical differences turn on forum preference, the counterparty's institutional familiarity, and the enforcement route available if representations prove false or completion obligations are missed. Lockhart & Yip advises on the structure, document architecture, and cross-border interface of these transactions, coordinating with locally licensed Hong Kong firms where Hong Kong law matters arise directly.

This service note covers the triggers that bring an SPA engagement to a head, the route we run step by step, the cross-border interface with the Mainland and offshore holding centres, the documents and decisions the principal must own, and the next move for a group ready to act.

When does a foreign principal need this, and what triggers the engagement?

The trigger is usually not the decision to buy or sell. It is the moment a foreign principal realises that the transaction cannot be handled by their home-jurisdiction counsel alone, because the target, the vehicle, or the governing-law clause sits in a legal environment those advisers cannot credibly cover.

In our cross-border M&A practice, the patterns recur. A European strategic acquirer has signed a term sheet for a Hong Kong-incorporated target with Mainland operations and a BVI holding layer above it. Their home counsel is excellent on the deal economics but has no seat at the table on the enforceability of the warranties in Hong Kong courts, the stamp duty implications of the share transfer, or the interface with the target's Mainland operating entities. The file arrives at our desk because the client needs counsel whose governing-law choice is credible to the other side and defensible in any subsequent dispute.

A second pattern is the sell-side mandate. A founder-owned Hong Kong operating group is exiting to a strategic or financial buyer. The founder's existing advisers have managed the corporate housekeeping but have never run a structured SPA process. The gap is not legal intelligence; it is transaction architecture – the sequence from heads of terms through due diligence, disclosure, conditions precedent, completion mechanics and post-completion adjustment.

The governing-law question sharpens the risk in both cases. Hong Kong law and English law share the same foundational doctrine – offer and acceptance, consideration, representation and warranty, indemnity versus warranty, limitation of liability, entire-agreement clauses. But the choice carries real consequences for the counterparty's familiarity with the document, the enforceability of specific performance orders, and – critically – the route to judgment if the SPA is litigated. A poorly chosen governing-law clause in a deal with Mainland assets can leave an award creditor without a usable enforcement path.

How does the governing-law choice interact with the enforcement route?

The governing law of an SPA and the dispute-resolution clause are two separate decisions, and treating them as one is among the more consequential errors we see in cross-border deals of this kind.

An SPA governed by Hong Kong law with a Hong Kong courts clause produces a Hong Kong judgment. For a party whose counterparty holds assets on the Mainland, that judgment can now be registered and enforced through the Mainland Judgments in Civil and Commercial Matters (Reciprocal Enforcement) Ordinance (Cap. 645), which came into force on 29 January 2024. The old requirement for an exclusive-jurisdiction clause – which excluded many commercial contracts from the earlier 2008 regime – is removed. A connection-based test applies instead. This is a material change for deal counsel: a Hong Kong governing-law clause combined with a Hong Kong courts clause in an SPA signed after that date provides an enforcement route that did not exist in the same form two years ago.

An SPA with an arbitration clause – most commonly seated in Hong Kong under the HKIAC Administered Arbitration Rules – produces an arbitral award rather than a judgment. That award travels on a different track: the Mainland–Hong Kong arbitral-award mutual-enforcement arrangements (the 1999 Arrangement and the 2020 Supplemental Arrangement, with simultaneous enforcement applications permitted since the 2021 amendment). Arbitration is frequently preferred where confidentiality matters, where the counterparty is a Mainland state-adjacent entity, or where the buyer's post-completion warranty claims are expected to be contested.

Choosing between litigation and arbitration in the dispute-resolution clause is therefore a function of where the assets sit, who the counterparty is, and how the enforcement route performs in practice – not a default to the drafter's preference. We regularly advise principals on this choice as a standalone step before the SPA term sheet is settled.

English law with a London courts or London arbitration clause follows yet another path. The enforcement of English judgments in Hong Kong and on the Mainland involves a different analysis. For deals where the target is a clean offshore vehicle with no Mainland operating substance, English law may be both appropriate and preferable. Where the deal touches Mainland assets or Mainland counterparties directly, the Hong Kong-law route is often cleaner at the enforcement end.

The sequence above describes the standard analysis. Your matter turns on the documents, the jurisdictions actually engaged, and the precise form of the dispute-resolution clause – which is where the route is won or lost.

To discuss how governing-law alignment applies to your specific transaction, contact info@lockhartyip.com.

The route we run: from term sheet to closing, step by step

Every SPA engagement runs through the same spine, even when the deal shape varies. Understanding the sequence – and where decisions must be made rather than deferred – is the single most useful thing we can share at the outset of an engagement.

Step 1: Structure and vehicle. Before documents are drafted, the acquisition vehicle must be confirmed. Is the buyer acquiring through a Hong Kong company, a BVI entity, or a Cayman structure? The vehicle affects the stamp duty position on the share transfer, the governing-law options available, and the post-closing holding structure. We model these options against the client's existing group structure and the deal objectives.

Step 2: Due diligence and disclosure architecture. On a sell-side mandate, the disclosure letter – the document by which the seller qualifies the warranties given in the SPA – is as commercially significant as the SPA itself. An incomplete disclosure letter leaves the seller exposed on warranty claims long after closing. On the buy side, the due diligence scope determines what warranties are needed, what gaps must be covered by indemnities, and which conditions precedent protect the buyer if material issues are identified after signing.

Step 3: SPA drafting. The SPA covers: (a) the sale and purchase mechanics, including conditions precedent and the long-stop date; (b) representations and warranties given by the seller; (c) the indemnity regime for specific identified risks; (d) pre-closing covenants; (e) completion deliverables; (f) post-closing price adjustment (completion accounts or locked-box, each with different risk profiles); (g) limitation provisions, including the cap on warranty liability, the basket, and the survival period; and (h) the governing-law and dispute-resolution clause.

Step 4: Regulatory clearances and third-party consents. Depending on the target's sector and jurisdictions, clearances may be required from competition regulators, foreign-investment review bodies, or sector-specific authorities. For targets with Mainland operations, the interface with the applicable Mainland approval or filing regime is assessed separately and, where required, coordinated with allied counsel admitted in that jurisdiction.

Step 5: Closing and post-closing. Completion mechanics in a Hong Kong or English-law SPA typically involve simultaneous exchange and completion, or a signing-completion gap with specific interim-period obligations. Post-closing, the price adjustment mechanism – if completion accounts are used – runs on a defined timetable. Warranty claims survive for a period fixed in the SPA; the buyer's ability to bring a claim depends on correct notice within that period.

Locally licensed Hong Kong firms join the engagement at the points where Hong Kong law governs directly: the stamp duty assessment on the share transfer, any Companies Ordinance filings, and matters arising under Hong Kong regulatory instruments. We coordinate and direct that input as part of the overall transaction team.

The cross-border interface: Hong Kong as hub across the deal perimeter

For most cross-border deals in our practice, Hong Kong functions as the structuring hub even when the target's operating substance sits elsewhere. The BVI or Cayman holding entity sits above a Hong Kong intermediate holding company, which in turn holds the Mainland operating vehicle. The SPA is written at the level of the offshore or Hong Kong entity; the Mainland layer is dealt with through representations, warranties, and the structure of the conditions precedent.

This architecture is the standard for a reason. The common-law courts in Hong Kong provide a tested, English-language dispute-resolution environment. The Arbitration Ordinance (Cap. 609), modelled on the UNCITRAL Model Law, provides the statutory basis for Hong Kong-seated arbitration, including emergency-arbitrator relief and the interim-measures arrangement with Mainland courts that has been in effect since 1 October 2019. The BVI and Cayman Islands maintain common-law corporate statutes that interface cleanly with Hong Kong transactional documents.

What changes when a Mainland operating entity is directly involved? Three things. First, the conditions precedent may include PRC regulatory or approval steps, which run on a timeline set by Mainland rules rather than by the SPA timetable. Second, the representations and warranties about the target's Mainland assets require due diligence input from advisers with Mainland-law competence; that input must be translated into English-language warranty language that holds up under the governing law of the SPA. Third, the enforcement route – as discussed above – turns on the governing-law and dispute-resolution clause chosen at the outset.

A mid-market European industrial group came to us in early 2025 to acquire a Hong Kong-incorporated holding company above a Mainland manufacturing business. The seller was a family group seeking a clean exit. The governing-law question – Hong Kong versus English law – was live. We advised on Hong Kong law as the governing law on the basis that the enforcement route via Cap. 645 was both newer and, for this deal structure, more direct than the English-judgment enforcement path. The conditions precedent were structured to accommodate the Mainland filing timetable without extending the long-stop date unnecessarily. The disclosure process was run against a defined due diligence scope, and the warranty cap and survival period were calibrated to the deal size and the nature of the Mainland assets. The transaction reached completion within the agreed timetable.

If an earlier structuring decision, a stalled condition precedent, or an incomplete disclosure process has created difficulty in a live transaction, a second read of the position can identify the strategic error and the routes still open. Write to info@lockhartyip.com to arrange a structured assessment.

The documents and decisions the client must own

Counsel drafts the documents. The principal owns the decisions. This distinction matters because several of the most consequential choices in an SPA negotiation cannot be delegated to advisers, and principals who do not understand the commercial architecture of their own deal are at a disadvantage in negotiations.

The decisions the buyer must own include: the price adjustment mechanism (completion accounts versus locked-box); the scope of the conditions precedent and the long-stop date; the warranty-claim cap as a percentage of consideration; the basket structure (de minimis and aggregate threshold); and the approach to specific indemnities for identified risks discovered in due diligence.

The decisions the seller must own include: the scope of the disclosure letter and the depth of disclosure against each warranty; the limitation provisions, particularly the survival period and the cap; and the treatment of any earn-out or deferred consideration element.

Both sides own the governing-law and dispute-resolution clause. The failure mode we see most often is not a failure to negotiate this clause; it is a failure to think it through before the term sheet is signed. Once the term sheet is agreed with a governing-law clause, renegotiating it in the SPA is difficult and signals weakness.

See also our practice on M&A and transactions across the full deal lifecycle, and our matter note on minority protections in a BVI joint venture, which addresses related structural decisions that arise in multi-party acquisition structures.

Common errors and where foreign principals lose ground

The errors that cost foreign principals on a Hong Kong or English-law SPA cluster into a small number of recurring categories.

Misalignment between governing law and enforcement route. As described above, this is the most commercially significant structural error. It is made at the term-sheet stage and is difficult to correct later.

Treating the disclosure letter as a formality. A well-drafted SPA warranty is only as effective as the disclosure against it. A seller who discloses broadly protects themselves; a seller who treats the disclosure letter as a brief administrative step creates latent warranty exposure that can survive closing for the full survival period. Buyers, conversely, should resist overly broad general disclosures that effectively hollow out the warranty protection they negotiated.

Incomplete due diligence on the Mainland layer. Where the target's operational substance sits in a PRC entity, due diligence conducted solely at the Hong Kong holding level misses the risks that actually matter. This is particularly acute in employment, environmental, and regulatory matters, where Mainland-specific rules apply and where warranty-claim recovery is difficult after the fact.

Deferring the dispute-resolution decision. A principal who defers the choice between litigation and arbitration until late in the negotiation is usually accepting the counterparty's default position. That default position is often London arbitration or a Mainland-court clause, both of which may be suboptimal for the actual enforcement position.

Confusing Hong Kong law with Hong Kong-court jurisdiction. These are two separate choices. An SPA can be governed by Hong Kong law with an arbitration clause seated in Hong Kong, or with a Singapore arbitration clause, or with a Hong Kong courts clause. Each combination has a different enforcement profile. The decision matrix is set out in the next section.

Decision matrix: situation, instrument, route, risk

The following analysis applies where the buyer holds assets in Hong Kong or the Mainland, or where the counterparty's assets are so situated. For deals with no Greater China nexus, the matrix shifts materially.

Situation A: The target is a Hong Kong company or a BVI/Cayman entity holding Hong Kong assets; the counterparty is Hong Kong-based or has Mainland assets. Instrument: SPA governed by Hong Kong law, Hong Kong courts clause. Route: Hong Kong judgment, enforceable in Hong Kong directly and registrable on the Mainland under Cap. 645 for Mainland assets. Risk: if the counterparty has neither Hong Kong nor Mainland assets, the judgment may not reach the assets without further cross-border steps.

Situation B: The target has significant Mainland operating substance; the deal is confidential; post-closing warranty claims are likely. Instrument: SPA governed by Hong Kong law, HKIAC arbitration clause. Route: HKIAC award, enforceable under the Mainland–HK arbitral-award mutual-enforcement arrangements. Risk: arbitral enforcement on the Mainland requires navigating the people's courts process; timeline is longer than registration under Cap. 645 for judgment enforcement but may offer more procedural certainty in contested matters.

Situation C: The target is a clean offshore vehicle; the buyer is a European or US principal with no Mainland nexus; the counterparty is comfortable with English-law documentation. Instrument: SPA governed by English law, London arbitration or London courts clause. Route: English judgment or LCIA/ICC award, enforced through applicable bilateral or multilateral mechanisms. Risk: enforcement in Hong Kong and the Mainland requires additional steps and analysis; this route is cleanest where the assets and the parties are outside Greater China.

Situation D: The deal involves a minority acquisition or joint-venture structure. Instrument: SPA plus a shareholders' agreement or joint-venture agreement, with governing law aligned across all documents. Route: as above, depending on the enforcement position. Risk: minority protections in a BVI or Cayman entity differ from those available under Hong Kong corporate law; see our analysis of minority protections in a Cyprus joint venture for a comparative read.

Self-assessment checklist

Before a principal commits to a governing-law and deal structure, the following questions should have clear answers.

• Where are the target's material assets located – Hong Kong, the Mainland, offshore, or a combination?
• Where does the counterparty hold assets that could be reached in an enforcement action?
• Is the transaction vehicle aligned with the governing-law choice (a Hong Kong company with a BVI SPA creates complexity at the stamp-duty level)?
• Has the due diligence scope been agreed before the conditions precedent are drafted?
• Are the conditions precedent realistic in timeline, including any Mainland regulatory steps?
• Has the disclosure letter been drafted against the warranty schedule, not after it?
• Are the warranty cap, basket structure, and survival period calibrated to the deal size and the risk profile of the target?
• Is the dispute-resolution clause chosen on enforcement logic, not drafter convenience?
• Has the stamp duty position been assessed for the share transfer?
• Are post-closing obligations (price adjustment, earn-out mechanics, compliance filings) clearly set out with defined timetables?

If the answer to any of these questions is uncertain, the engagement has a gap. We can map the options and prepare the implementation steps.

Related practices

• Disputes & Arbitration – enforcement of SPA claims and arbitral awards across Greater China
• Holding Structures – vehicle selection and offshore holding-layer design for acquisitions
• Tax Positions – FSIE, profits tax, and stamp duty implications of cross-border share transactions

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Related

• Ma Transactions
• Minority Protections Bvi Joint Venture Bvi Matter
• Minority Protections Cyprus Joint Venture Cyprus Analysis

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