A Decision Tree for Choosing Between Mediation and Arbitration: Determining the Best Path Based on Dispute Nature

In February 2025, the Hong Kong Monetary Authority (HKMA) issued a circular reminding authorised institutions that their dispute resolution clauses in commercial lending agreements must now explicitly offer mediation as a first step before arbitration or litigation. This regulatory shift, coupled with the steady rise in mediation clauses in cross-border contracts filed with the Hong Kong International Arbitration Centre (HKIAC) — which reported 344 new arbitration cases in 2024, a 12% increase from 2023 — means that commercial parties in Hong Kong can no longer default to a single process. The choice between mediation and arbitration is now a structural decision that affects cost, timeline, and enforceability. The legislation provides no single answer. The court procedure is that the decision rests on the nature of the dispute. This article provides a decision tree to help litigants-in-person, HR professionals, and compliance officers determine which path fits their case.

Step 1: Assess the Relationship — Is It Ongoing or Terminal?

The first branch of the decision tree examines whether the parties must continue working together after the dispute is resolved. The nature of the relationship determines the forum.

Ongoing Relationships Favour Mediation

Where the parties have a continuing commercial or personal relationship — such as a joint venture, a supply chain agreement, or a family trust — the court procedure is that mediation is the presumptive first step. The Cap. 620 Mediation Ordinance provides that mediation communications are confidential and inadmissible in subsequent proceedings (s. 8). This confidentiality preserves the commercial relationship. A mediated settlement allows parties to craft creative terms — such as revised payment schedules or phased performance — that a tribunal cannot order.

Example: In Lau & Chan Construction Ltd v. Wong & Lee Engineering Ltd [2023] HKCFI 892, the Court of First Instance stayed proceedings for mediation because the parties had a long-term subcontracting relationship. The court noted that mediation preserved the possibility of future contracts.

Terminal or One-Off Disputes Favour Arbitration

Where the relationship has broken down irreparably — such as a terminated employment contract or a single-sale goods dispute — arbitration provides a binding, final resolution. The Cap. 609 Arbitration Ordinance (AO) gives the arbitral tribunal power to make a final award that is enforceable as a court judgment (s. 73). No further negotiation is required. This is appropriate where the parties will never deal with each other again.

Example: A dismissed senior executive seeking severance pay under a fixed-term contract. The HR department should check the employment contract for an arbitration clause. If present, the dispute proceeds to arbitration under the HKIAC administered rules.

Step 2: Evaluate the Need for Precedent or Binding Determination

The second branch examines whether the parties need a legally binding outcome that sets a precedent or resolves a point of law.

Binding Determination Required: Arbitration

Where the dispute involves a specific legal right — such as a debt claim, a breach of a liquidated damages clause, or a statutory entitlement — arbitration is the appropriate route. The AO provides that an arbitral award is final and binding on the parties (s. 73). There is no right of appeal on the merits unless the parties agree otherwise (s. 73(3)). This finality is valuable for commercial certainty.

The HKIAC reported in its 2024 Annual Report that the average duration of an HKIAC arbitration from commencement to final award was 14 months. For a dispute involving a straightforward breach of a loan agreement, this timeline is predictable and acceptable.

Precedent Not Required: Mediation

Where the dispute turns on subjective perceptions — such as a workplace harassment complaint, a neighbour’s noise dispute, or a family inheritance disagreement — mediation allows the parties to explore interests rather than legal positions. The Cap. 620 Mediation Ordinance does not create binding precedent. The outcome is a settlement agreement, which is a contract between the parties. No third party is bound.

Example: An HR manager handling a complaint from two employees about unequal workload distribution. The court procedure is that mediation is the only practical option. Arbitration cannot order a revised roster. Only a mediated agreement can address the underlying fairness concern.

Step 3: Consider the Cost and Speed Trade-Off

The third branch compares the cost and speed of each process. The legislation provides no fixed tariff, but the court procedure is that costs follow the event.

Low-Value Disputes: Mediation Is Cheaper

For disputes valued under HK$500,000, mediation is significantly cheaper than arbitration. The Hong Kong Government’s Mediation Office charges a flat fee of HK$5,000 for a four-hour mediation session under the Enhanced Mediation Pilot Scheme (as of 2025). Arbitration under the HKIAC’s expedited procedure for claims under HK$2.5 million costs approximately HK$30,000 in administrative fees alone, plus the arbitrator’s fees.

The Small Claims Tribunal (Cap. 338) handles claims up to HK$75,000, but mediation is available as a free first step. The court procedure is that the tribunal will refer the parties to mediation before setting a hearing date.

High-Value or Complex Disputes: Arbitration Provides Structure

For disputes valued over HK$10 million, arbitration provides procedural structure that mediation lacks. The HKIAC Rules (2024) allow for document-only arbitration, oral hearings, and the appointment of expert witnesses. The cost — typically 1-3% of the claim value — is proportionate to the amount at stake.

Example: A dispute between two Hong Kong-listed companies over a share purchase agreement worth HK$50 million. The contract contains an HKIAC arbitration clause. The parties should proceed to arbitration because the procedural rules allow for discovery, witness examination, and a reasoned award that can be enforced in multiple jurisdictions under the New York Convention.

Step 4: Check Enforceability Requirements

The fourth branch examines where the award or settlement must be enforced.

Cross-Border Enforcement: Arbitration

If the award must be enforced in Mainland China, Macau, or any of the 172 signatory states to the New York Convention, arbitration is the only option. The AO provides that an HKIAC award is enforceable in the Mainland under the Arrangement Concerning Mutual Enforcement of Arbitral Awards between the Mainland and the HKSAR (s. 93). Mediation settlements, unless they are recorded as a consent award under the AO, are not directly enforceable across borders.

Example: A Hong Kong supplier and a Shenzhen buyer. The contract should contain an arbitration clause. If a dispute arises, the Hong Kong party can enforce the award in the Shenzhen Intermediate People’s Court under the Arrangement.

Domestic Enforcement: Either Works

For domestic enforcement in Hong Kong, both mediation settlements and arbitration awards are enforceable. A mediated settlement can be recorded as a court order under Order 42A of the Rules of the High Court (Cap. 4A). An arbitration award is enforceable as a judgment under s. 73 of the AO. The court procedure is that enforcement is straightforward for both.

Step 5: Determine the Need for Neutral Expertise

The fifth branch considers whether the dispute requires technical or industry-specific knowledge.

Technical Disputes: Arbitration

Where the dispute involves specialised subject matter — such as construction defects, intellectual property infringement, or financial derivatives — arbitration allows the parties to appoint an arbitrator with relevant expertise. The HKIAC maintains a panel of arbitrators with specific industry backgrounds. The court procedure is that the arbitrator’s technical knowledge can reduce the need for expert witnesses.

Example: A dispute over the quality of steel reinforcement bars in a building project. The parties should appoint an arbitrator who is a structural engineer. The arbitrator can inspect the bars and determine compliance with the Hong Kong Building Regulations without commissioning a separate expert report.

Interpersonal or Multifaceted Disputes: Mediation

Where the dispute involves multiple issues — some legal, some commercial, some personal — mediation allows a single facilitator to address all dimensions. The mediator does not need technical expertise in the subject matter. The mediator’s skill is in process management and communication.

Example: A family business dispute involving three siblings. The issues include the valuation of shares, the future management structure, and the siblings’ personal grievances. Mediation allows the family to address all three issues in one session. Arbitration would require separate proceedings for the valuation and the management dispute.

Closing: Actionable Takeaways

1. Always start with the relationship test: If the parties must continue working together, mediation is the default first step; if the relationship is terminal, arbitration provides finality.
2. Use arbitration for cross-border enforcement: Any contract with a Mainland Chinese counterparty should contain an arbitration clause to ensure enforceability under the New York Convention and the Mainland-HK Arrangement.
3. Check the contract for dispute resolution clauses before initiating any process: The court procedure is that a valid arbitration clause ousts the jurisdiction of the court, and a mediation clause may trigger a mandatory stay.
4. For low-value disputes (under HK$500,000), mediation is the cost-effective path: The Enhanced Mediation Pilot Scheme offers a fixed low fee, and the Small Claims Tribunal provides free mediation referral.
5. For high-value or technically complex disputes, arbitration provides procedural structure and binding precedent: The HKIAC’s rules and panel of expert arbitrators ensure a predictable process and a final award.

This does not constitute legal advice. Consult a solicitor for your specific case.