Where drafting an HKIAC arbitration clause for a Mainland China counterparty stands now

A contract between a Hong Kong buyer and a Mainland counterparty closes. The clause is there. It names the HKIAC, it specifies Hong Kong as the seat, and it looks, on its face, entirely standard. The question that matters is not whether the clause is valid. The question is whether an award made under it will reach the assets.

Drafting an HKIAC arbitration clause for a Mainland China counterparty requires a precise understanding of the Mainland–Hong Kong mutual-enforcement architecture, the governing instruments on both sides of the boundary, and the sequencing of steps from award to execution. The principal instruments are the Arbitration Ordinance (Cap. 609), the HKIAC Administered Arbitration Rules effective 1 June 2024, and the series of bilateral Arrangements between the Mainland and the HKSAR governing arbitral-award recognition and interim measures. The clause is the beginning, not the end, of that analysis.

This analysis covers the commercial stakes, the governing regime, the comparative read across both systems, where the risk sits in the current environment, and the practical drafting choices that follow from that read.

What is commercially at stake when the counterparty is Mainland-based?

The asset endgame is the only thing that matters at the point of enforcement. A well-drafted clause that produces an award you cannot enforce is a liability, not an asset. For Mainland counterparties, that endgame is almost always a people's court in China – which means the clause and the award must be capable of crossing the boundary.

The commercial reality is that Mainland entities hold their operating assets, receivables, bank accounts, and property in China. A Hong Kong award made under an HKIAC clause is a Hong Kong judgment-equivalent for enforcement purposes, but the assets are not in Hong Kong. The enforcement step therefore requires a recognition mechanism under Mainland law, triggered by the party winning the award. That mechanism is the 1999 Arrangement (as supplemented in 2020 and amended in 2021) between the Mainland and the HKSAR on mutual enforcement of arbitral awards.

This is a different system from the New York Convention. Hong Kong is part of the People's Republic of China. PRC–HK arbitral awards run via the bilateral Arrangements, not via the Convention. A foreign-seated award against the same counterparty would travel a different route. Understanding which route applies – and what it requires – is the starting point for every clause drafted in this context.

The stakes extend to interim measures. An arbitration that takes months or years to conclude can be rendered worthless if the counterparty disperses its assets during the proceedings. Since 1 October 2019, parties to Hong Kong-seated arbitrations have been able to apply to Mainland courts for interim measures before or during those proceedings. That ability is embedded directly in the Interim Measures Arrangement between the Mainland and the HKSAR. Preserving access to it requires that the arbitration is Hong Kong-seated. The clause must say so.

What governs the clause and what does the cross-border interface require?

The Arbitration Ordinance (Cap. 609), modelled on the UNCITRAL Model Law on International Commercial Arbitration, governs Hong Kong-seated arbitrations. It confirms the validity of agreements to arbitrate, empowers courts to refer disputes to arbitration, and provides the framework for enforcement and challenge of awards in Hong Kong. Parties who choose Hong Kong as the seat obtain the benefit of a common-law supervisory court, a well-tested statutory regime, and a practitioner community that regularly acts in cross-border matters of this kind.

The HKIAC Administered Arbitration Rules in their current form – effective 1 June 2024 – add procedural architecture on top of the Ordinance. They govern tribunal constitution, emergency arbitrator proceedings, case management, expedited procedure, and the timing sequence from file transmission to award. The default seat under the Rules, absent party agreement, is Hong Kong. Specifying Hong Kong expressly remains advisable in a Mainland counterparty context, given the significance of the seat to the interim-measures and enforcement routes.

On the Mainland side, the key instrument for arbitral-award enforcement is the 1999 Arrangement on Mutual Enforcement of Arbitral Awards between the Mainland and the HKSAR, as supplemented by the 2020 Supplemental Arrangement. The 2021 amendment permitted simultaneous enforcement applications on both sides of the boundary – a material development for creditors with assets on both sides. Before that amendment, a sequential approach was required. Now, a party can proceed concurrently. The clause cannot itself create or destroy this right, but the structure of the clause determines whether the award qualifies for the mechanism.

An award qualifies if it is made by an arbitral institution or a tribunal in accordance with the Arrangements. HKIAC awards meet that requirement. The clause must also produce an award that is final and binding on the parties and capable of enforcement in Hong Kong. These are conditions imposed by the Mainland side. Drafting errors that leave the award open to challenge in Hong Kong – or that produce a non-final interim decision dressed as a final award – can defeat enforcement before the Mainland courts.

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 arbitration clause and the enforcement architecture across Hong Kong and the Mainland, write to us at info@lockhartyip.com.

How do the two systems read the same clause differently?

The cross-border interface between Hong Kong and Mainland China involves two legal systems that share a common state but not a common private law. Each side reads the arbitration clause through its own lens, and the differences are not merely formal.

Under Hong Kong common law, an arbitration clause is construed to give effect to the parties' evident intention to resolve disputes by arbitration. Courts adopt a pro-arbitration stance and will generally refer a dispute to arbitration if there is an arguable case that the clause covers it. The Court of First Instance has consistently applied this approach in line with the Arbitration Ordinance and the international model-law tradition.

Mainland courts apply the Mainland's Arbitration Law and the relevant judicial interpretations from the Supreme People's Court. Those interpretations have, over the years, set out specific validity requirements for arbitration clauses. A clause must clearly designate an arbitral institution. A clause that attempts to confer jurisdiction on an ad hoc tribunal – without institutional backing – risks being held invalid under Mainland law for Mainland enforcement purposes, even if it is perfectly valid under Hong Kong law. This is a known source of failure in cross-border drafting. Designating the HKIAC clearly and unambiguously as the administering institution addresses this risk directly.

The Mainland's courts have also, in a series of reported decisions, scrutinised whether an arbitration clause was validly incorporated into the contract, whether the clause covered the specific dispute, and whether the party seeking enforcement is the same legal entity as the party to the clause. Each of these points is a potential objection. The drafting choices that minimise those objections are: a self-standing arbitration clause (not buried in a boilerplate schedule), an express clause-survival provision, and careful attention to entity names and signing authorities at execution.

Language is a further asymmetry. A clause drafted only in English may face interpretation challenges before a Mainland court where the substantive contract is in Chinese. A bilingual clause, with a clear governing-language provision, is preferable in most Mainland counterparty contexts. Where the two language versions conflict, the governing-language provision controls – but only if it is there.

Where does the risk sit now – and what has changed?

The current environment is more permissive for Hong Kong-seated arbitrations with Mainland counterparties than it was five years ago. Three developments account for most of that shift.

First, the Interim Measures Arrangement in force since 1 October 2019 extended a genuine procedural advantage to HKIAC arbitrations. The ability to freeze Mainland assets before a Mainland court, at the interim stage of a Hong Kong arbitration, changed the practical calculus for creditors. Previously, asset preservation required a Mainland arbitration or a Mainland court filing. Now it can run in parallel with the Hong Kong proceedings.

Second, the 2021 amendment to the arbitral-award Arrangements permitting simultaneous enforcement applications is material for any matter where the debtor holds assets on both sides of the boundary. An award creditor no longer has to choose a side. Concurrent applications reduce the risk that the debtor uses the time of a sequential process to move or diminish assets.

Third, the HKIAC 2024 Rules introduced procedural refinements that bear on the Mainland enforcement analysis. The rules on tribunal constitution, the expedited procedure, and the closure of proceedings (with award timing tied to that closure) all affect how quickly a final and binding award is produced. Speed matters for enforcement: an expedited-procedure award, issued within six months of file transfer to the tribunal, reaches the recognition stage faster and gives the debtor less time to reorganise.

Against these advantages, three risk areas remain. First, the validity of the arbitration clause itself is still tested at the Mainland-enforcement stage. Poorly drafted clauses that are ambiguous as to the institution, the seat, or the scope of disputes covered continue to generate enforcement failures. Second, the foreign-related element requirement under Mainland law means that a wholly domestic Mainland contract between two Mainland entities will not, as a general rule, be capable of submitting to HKIAC arbitration – even if the parties agree to it. A genuinely cross-border transaction is required. Third, the interplay between an HKIAC clause and governing-law choices that point to Mainland law requires attention: Mainland courts reviewing the validity of an arbitration agreement may apply Mainland law on that specific question, even if Hong Kong law governs the contract generally.

In our cross-border practice, the majority of enforcement failures we see on Mainland-related matters trace back to drafting, not to the Arrangements themselves. The system, as it now stands, is functional. The clause has to be right.

The practical drafting choices and where they lead

Four categories of drafting decision determine whether the clause survives to enforcement.

Institutional designation. Name the HKIAC as the administering institution, in full and without qualification. Avoid composite formulations that suggest optional institutional participation or that allow the parties to revisit the question. The Mainland courts' requirement for a clearly designated institution is well-established, and ambiguity here is the single most common cause of a challenge to validity on the Mainland side.

Seat and procedural law. Specify Hong Kong as the seat of arbitration. This is not only important for the Interim Measures Arrangement – it also determines the supervisory court, the standard for setting aside the award, and the default procedural law. Under the HKIAC Rules, the default seat is Hong Kong; stating it expressly removes any argument.

Governing law and clause survival. The governing law of the contract and the governing law of the arbitration agreement may be different. If the substantive contract is governed by Mainland law, the clause should specify that the arbitration agreement itself is governed by Hong Kong law, referencing the Arbitration Ordinance. Add a clause-survival provision stating that the arbitration clause survives termination or invalidity of the main contract. These two additions together address the most common attacks on clause validity.

Language and scope. A bilingual clause in English and Simplified Chinese, with a governing-language provision, is advisable for most Mainland-facing contracts. The scope of the clause should be drafted broadly – "any dispute arising out of or in connection with this agreement" – to capture tortious and restitutionary claims as well as contractual ones. Narrow drafting that excludes specific dispute types can create an opening for a party to argue that a particular claim falls outside the clause and must go to a Mainland court.

The decision matrix, in prose, runs as follows. Where the counterparty is a Mainland entity and the assets are in China, the instrument is the HKIAC Administered Arbitration Rules under a Hong Kong-seated clause, with the Interim Measures Arrangement as the asset-preservation route and the 1999 Arrangement (as amended) as the enforcement route; the timing runs from the expedited-procedure track at six months to the standard track with award within three months of closure; and the risk is clause-validity challenge at the Mainland recognition stage, addressed by the drafting choices above. Where the counterparty has offshore assets as well – for example, in the BVI or the Cayman Islands – the HKIAC award can be enforced in those jurisdictions via the New York Convention, giving the creditor a second enforcement front. That second front is addressed in our analysis of enforcing a Hong Kong arbitral award in the BVI.

The micro-scenarios: what this looks like in practice

A Central Asian trading group with a Hong Kong operating entity entered a long-term supply agreement with a Mainland manufacturer in early 2024. The contract was governed by Hong Kong law, but the arbitration clause was drafted by the Mainland party's counsel. It named "a Hong Kong arbitration institution" without further specification and set no seat. The clause was not bilingual. When a dispute arose over non-delivery, the Hong Kong party commenced HKIAC proceedings. The Mainland party challenged the validity of the clause before the Mainland courts at the enforcement stage, arguing that the institution was not clearly designated. The enforcement application stalled for two years. We reviewed the position on a second mandate. The simultaneous-enforcement amendment permitted a concurrent application; the Hong Kong registration proceeded; and the matter resolved through a negotiated settlement under the pressure of the dual enforcement route.

A second scenario. A European group with a Hong Kong acquisition vehicle acquired a Mainland joint-venture interest in autumn 2025. The shareholders' agreement was negotiated in English only and contained a broadly drafted HKIAC clause with Hong Kong as the seat and Hong Kong law governing both the agreement and the arbitration clause. When a deadlock arose at board level, the European group commenced HKIAC expedited proceedings. The clause was clean, the institution clearly named, the seat specified. The interim-measures application to the relevant Mainland court ran concurrently. A final award was produced within the expedited-procedure timeline. Registration in Hong Kong and the Mainland proceeded in parallel. The asset-preservation order held through the enforcement phase.

The contrast between the two outcomes maps directly onto the drafting choices. The first clause was ambiguous on institution and silent on seat. The second clause was precise on both. That difference – two drafting decisions – determined two years of additional delay in one case and a clean enforcement sequence in the other.

The objection-handler: what the Mainland party's counsel will argue

The most common objection raised by Mainland-side counsel in a dispute about clause validity is that the contract is a domestic Mainland contract between entities without a genuine foreign element, and therefore the parties had no power to agree to HKIAC arbitration in the first place. This is a real constraint. A wholly domestic contract between two Mainland entities is, under Mainland law, generally outside the permissible scope of foreign arbitration. But the objection is frequently raised in transactions where the foreign element is present but not made explicit in the clause or the contract recitals.

The response is drafting hygiene at the front end. Where a contract has a genuine foreign element – a Hong Kong party, offshore holding structure, cross-border payment flows, foreign investment – that element should be reflected in the contract recitals and, ideally, in the arbitration clause itself. Silence on the point invites the objection.

A related myth is that the HKIAC, as a Hong Kong institution, is inherently disadvantaged before Mainland courts compared to Mainland-seated institutions. The evidence does not support this. The Arrangements specifically contemplate HKIAC-administered arbitrations. The Mainland Supreme People's Court has recognised HKIAC awards in a consistent line of decisions. The institution's standing under the Arrangements is established. What is not established – and what continues to generate risk – is the quality of individual clauses submitted for recognition.

If an earlier filing, structure, or enforcement attempt produced an adverse or stalled result, a second read can identify the strategic error and the routes still open. To discuss the position on a pending or anticipated Mainland enforcement, write to us at info@lockhartyip.com.

Where this is heading: the analytical view

The trajectory of the Mainland–HK arbitration relationship is towards greater integration, not less. The Interim Measures Arrangement, the 2020 Supplemental Arrangement, the 2021 amendment permitting simultaneous applications – each step has expanded the practical utility of Hong Kong-seated arbitration for Mainland counterparty disputes. There is no current indication of a reversal of that direction.

The HKIAC 2024 Rules, by improving the procedural efficiency of the arbitration itself, reduce the window between dispute and award. That window is the period of maximum asset-dissipation risk. Faster proceedings, combined with concurrent enforcement applications and the interim-measures route, have substantially improved the creditor's position compared to the architecture that existed a decade ago.

Two areas of ongoing uncertainty remain. First, the scope of the foreign-related element requirement is not fully codified. Cases at the margin – transactions involving Mainland entities with offshore shareholding, for example – continue to produce divergent results before different Mainland courts. Practitioners on our desk see this as the most active area of enforcement-stage litigation in the Hong Kong–Mainland corridor. Second, the interaction between the HKIAC clause and wider structural choices – whether the holding entity is in the BVI, in the Cayman Islands, or in Hong Kong itself – affects the enforcement landscape. A BVI holdco above a Mainland opco adds a New York Convention enforcement front, but it also adds a layer of corporate complexity that must be managed at the interim-measures stage. These interactions are addressed in our practices on disputes and arbitration and in our briefing on enforcing a Hong Kong arbitral award in Cyprus.

The analytical conclusion is this. The HKIAC clause for a Mainland China counterparty is, on the current state of the Arrangements and the Rules, a well-supported choice. The system is functional. The failure point is the clause, not the institution. Getting the drafting right – institution, seat, governing law of the arbitration agreement, language, scope, survival – is a front-end investment that determines the enforceability of the award at the back end.

Related practices

• Disputes & Arbitration – cross-border arbitration, award enforcement, and interim-measures strategy across Hong Kong and Greater China
• Holding Structures – BVI, Cayman, and Hong Kong holding architecture above Mainland operating entities

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• Disputes Arbitration
• Enforcing Hong Kong Arbitral Award Bvi Bvi
• Enforcing Hong Kong Arbitral Award Cyprus Cyprus Briefing

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