Update: choosing the seat of arbitration

The seat of arbitration is not an administrative detail. It is the decision that determines which courts supervise the process, which enforcement routes open, and where an award can be challenged. For contracts with Greater China exposure, this question has grown sharper since the interim-measures arrangement and the reciprocal-enforcement regime reshaped the practical map.

Choosing the seat of arbitration for an Asia-facing contract means selecting the legal home of the proceedings under the Arbitration Ordinance (Cap. 609) and, where Hong Kong is chosen, gaining access to the Mainland interim-measures arrangement in force since 1 October 2019 and to the mutual-enforcement regime for arbitral awards established under the 1999 Arrangement and its 2020 Supplemental Arrangement. The seat governs supervisory jurisdiction, grounds for setting aside, and the ultimate enforceability of the award in every market where assets sit.

This briefing covers what has changed, who it affects across the cross-border corridor, and the immediate steps a contracting party should take.

What the current regime means in practice

Two developments have altered the calculus for Asia-facing contracts.

First, Hong Kong-seated arbitrations gained a direct channel to Mainland Chinese courts for interim measures (provisional relief to preserve assets or evidence pending an award). No other offshore seat has that channel. Parties with counterparties or assets in Mainland China need to know that this mechanism is only available if the arbitration is seated in Hong Kong and conducted by a designated institution such as the HKIAC.

Second, the mutual enforcement of arbitral awards between Hong Kong and the Mainland operates outside the New York Convention. The 2020 Supplemental Arrangement introduced a significant practical change: a party may now pursue simultaneous enforcement applications on both sides of the boundary rather than waiting for one to conclude. That matters when assets are split.

What does this mean for a group drafting an Asia-facing commercial contract today? The seat decision is not interchangeable. Singapore, London, and Hong Kong each give access to different supervisory courts, different interim-relief routes, and different enforcement corridors. For counterparties with Mainland-connected assets, Hong Kong's position is structurally distinct.

Who is affected and what to do now

Any group entering a commercial contract with a Mainland Chinese counterparty, a BVI or Cayman holding entity with Mainland underlying assets, or a Greater Bay Area operating entity faces this question at the drafting stage. It is far harder to fix after a dispute arises. A poorly drafted arbitration clause – one that names an incorrect institution, omits the seat, or selects an incompatible combination of seat and governing law – can render the clause inoperable.

In our cross-border practice, we regularly see three recurring errors. Parties copy a clause from a prior contract without checking whether the institution rules match the new seat. They select a seat without considering where the respondent's assets actually sit. And they omit any thought of interim measures, leaving them exposed in the period between a dispute arising and an award being issued.

The immediate action is a clause-level review before execution. If a contract is already signed with an existing arbitration clause, a clause-quality assessment can identify whether the route to enforcement is intact or compromised.

For context on how a Hong Kong-seated award interacts with the Mainland enforcement regime, see our analysis of the reciprocal-enforcement regime. For cross-border court-judgment recognition questions, including the position with UK judgments, see our separate briefing on recognising foreign court judgments in Hong Kong. Our full disputes and arbitration service page is at lockhartyip.com/practices/disputes-arbitration/.

To discuss the arbitration clause in a contract you are preparing or reviewing, write to info@lockhartyip.com.

Frequently asked questions

How does the cross-border element affect choosing the seat of arbitration for an Asia-facing contract?

The cross-border element determines which enforcement corridors are available once an award is made. A Hong Kong seat opens the Mainland interim-measures arrangement and the bilateral mutual-enforcement regime for awards, neither of which is available from an offshore seat. Where counterparty assets straddle the Mainland and offshore centres, the seat decision directly controls how and where an award can ultimately be converted into recovered value.

Do I need a Hong Kong adviser for choosing the seat of arbitration for an Asia-facing contract?

International counsel with specific knowledge of the Mainland–Hong Kong enforcement interface is necessary because the relevant mechanisms – the interim-measures arrangement, the 1999 Arrangement and its 2020 Supplemental Arrangement, and the supervisory role of the Hong Kong courts – sit at the intersection of Hong Kong procedural law and cross-border treaty instruments. General commercial counsel without that specific cross-border focus will not ordinarily map the enforcement endgame in the way the clause requires.

Which jurisdiction's law applies to choosing the seat of arbitration for an Asia-facing contract?

The seat determines the lex arbitri (the law governing the arbitral proceedings themselves), which for a Hong Kong-seated arbitration is the Arbitration Ordinance (Cap. 609). This is distinct from the governing law of the underlying contract, which the parties choose separately. Both choices matter: the governing law controls how the substance is decided; the lex arbitri controls how the proceedings are run, when they can be challenged, and which courts have supervisory jurisdiction over the award.

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

Update: choosing the seat of arbitration for an Asia-facing contract

What the current regime means in practice

Who is affected and what to do now

Frequently asked questions

Speak with Lockhart & Yip

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