Update: completion mechanics and conditions in a cross-border SPA

Completion mechanics and conditions precedent in a cross-border share purchase agreement (SPA, the principal transactional document governing the sale and transfer of shares across a deal perimeter) are the most operationally fraught element of any Greater China or Asia-Pacific acquisition. The governing instrument, the vehicle of transfer, and the clearance calendar must align before the completion date is set. Misalignment does not merely delay – it risks a party having no contractual remedy at all.

This briefing identifies the recurring trigger that brings cross-border teams to our desk and sets out the immediate action for groups with live or pending transactions.

What the recurring trigger is – and why it matters now

Completion failure in cross-border SPAs rarely originates in a defect in the underlying business. It originates in a structural mismatch: the acquisition vehicle sits in one jurisdiction, the shares being transferred are governed by the law of another, and the regulatory clearances required for completion are filed in a third. When those three elements run on independent timelines, a condition precedent (CP, a contractual prerequisite whose satisfaction triggers the obligation to complete) lapses before all approvals are in hand.

In our cross-border M&A practice, the most common trigger is an expiring long-stop date (the final date by which all conditions must be satisfied or waived before either party may walk away) combined with an outstanding clearance from a Mainland Chinese regulatory authority or an offshore registry. The two timelines do not correspond. The Hong Kong deal team controls the SPA; the regulatory window is set externally.

A second trigger, which our desk sees with increasing frequency, is the failure to align the governing law of the SPA with the seat of the acquisition vehicle. A BVI or Cayman holding entity may be used above a Hong Kong operating company, but if the SPA is governed by the law of a jurisdiction with different completion-mechanics conventions – for example, a locked-box mechanism (a fixed economic cut-off date that replaces a completion accounts adjustment) drafted under one system applied to a completion-accounts regime (a post-completion adjustment based on agreed financial statements at closing) drawn from another – the result is a hybrid that is enforceable in principle and unworkable in practice.

The corridor that concentrates this risk most sharply is the Mainland China–Hong Kong–offshore triangle, where groups structured through BVI or Cayman holding entities transact across a boundary that is, in legal terms, an international interface. Two distinct legal systems apply. Enforcement of any completion-related claim runs through that interface. Groups should treat this as a live operational issue, not a closing formality.

Who is affected across the corridor

Any group with a pending SPA involving a target with assets, operations or counterparties in Mainland China, or with a holding or acquisition vehicle incorporated in Hong Kong, the BVI or the Cayman Islands, is within the affected perimeter. The specific exposure points are as follows.

First, the governing-law and jurisdiction clause: an SPA governed by English law or Hong Kong law applied to a target with Mainland Chinese assets will encounter a cross-border enforcement question the moment a completion-related dispute arises. The M&A & Transactions practice at this firm handles exactly this interface. Second, the regulatory CP: where MOFCOM (the Ministry of Commerce of the People's Republic of China, the principal authority for certain inbound and outbound investment approvals) or a sectoral regulator holds a required approval, the SPA must provide adequate runway between signing and the long-stop date. Third, stamp duty: a transfer of Hong Kong stock attracts ad valorem stamp duty of 0.1% per party on the higher of consideration or value under the Stamp Duty Ordinance. The sequence of transfer documents and duty payment is a completion step, not an afterthought.

Foreign groups – European, Middle Eastern and CIS principals, in particular – frequently underestimate the degree to which a Hong Kong-seated or Hong Kong-governed SPA imposes its own mechanics. Those mechanics are not interchangeable with the conventions of their home jurisdiction. We regularly act for groups encountering this mismatch mid-transaction, when the negotiation window is already closing.

A note on enforcement: if a party fails to complete, the SPA's remedy provisions are only as useful as the jurisdiction in which they can be enforced. For a target with assets in the Mainland, the Mainland Judgments in Civil and Commercial Matters (Reciprocal Enforcement) Ordinance (Cap. 645), which came into force on 29 January 2024, provides a registration mechanism for effective Mainland judgments in the Hong Kong Court of First Instance – and vice versa. A specific-performance order or a damages judgment obtained in Hong Kong now has a cleaner enforcement route into the Mainland than at any prior point. That route must be contemplated at the drafting stage of the SPA, not after a breach. Our analysis of how that regime interacts with M&A remedy structures is available at this matter note.

The immediate action

For any group with a signed or near-signed cross-border SPA, three steps are immediately relevant.

First, audit the CP schedule against the actual regulatory timeline. Map each condition to the authority that must satisfy it and the realistic clearance period. If the long-stop date does not provide adequate headroom, negotiate an extension now, before the date runs. Extending after the long-stop requires the other party's consent and, in a deteriorating deal, that consent may not come.

Second, confirm that the governing law, the jurisdiction clause and the acquisition vehicle are aligned. If the SPA is governed by Hong Kong law and the vehicle is a BVI entity, the interface between Hong Kong contract law and BVI corporate mechanics – share transfer, director resolutions, registry filings – must be addressed in the completion deliverables schedule. Our guide to acquiring a UK target through a Hong Kong vehicle illustrates how that alignment is constructed in a comparable cross-border setting.

Third, confirm the stamp duty position on the day of completion. The sequence of execution and lodgement matters; a stamp duty default on completion day is a filing defect that affects the validity of the transfer.

The sequence above describes the standard position. Your matter turns on the documents, the jurisdictions actually engaged, and the order of steps – which is where the route is won or lost. For a structured assessment of your completion mechanics and conditions across the relevant jurisdictions, write to us at info@lockhartyip.com.

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